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Environmental Engineering Companies in United States (US)

Environmental engineering firms design, engineer, and commission industrial and engineering solutions for industrial operators, asset owners, and project developers. This page lists firms in the Environmental Engineering sector, with structured profile data to support procurement and comparison. The directory currently holds 817 companies in this sector. The largest share of listings is based in Orlando. Related sectors on Enterprise League include Geotechnical Services, Aerospace Engineering, Building Services Engineering, Flooring Services Engineering, Chemical Engineering, Landscape Design and Engineering, Civil Engineering.
817 companies
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Environmental Engineering
List of Environmental Engineering companies in United States (US)

817 companies

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Green Project is the leading AI-enabled carbon management platform for supply chain decarbonization. We empower companies, and their suppliers to move beyond reporting and take meaningful, measurable climate action. Trusted by 700+ organizations, including Microsoft and S&P, Green Project delivers financial-grade carbon accounting and deep Scope 3 engagement tools tailored for procurement and sustainability leaders. We enable suppliers to: calculate product-level carbon footprints and service-level emissions, procure renewable energy through verified EACs, align with frameworks like SBTi, and access education and upskilling resources to accelerate climate maturity. We’re not just helping companies meet climate targets, we’re transforming entire supply chains into climate leaders.
Environmental Protection Consulting and Education
Environmental Engineering

2021

The Northwest Energy Efficiency Alliance (NEEA) is an alliance of more than 140 utilities and energy efficiency organizations working on behalf of more than 13 million energy consumers to increase the adoption of energy-efficient products, services and practices. To do this, the alliance identifies and removes market barriers to energy efficiency to drive permanent change throughout the supply chain. This formalized, lasting approach is known as Market Transformation. Since 1997, NEEA and the region have saved enough energy to power more than 900,000 homes each year. Energy efficiency can satisfy more than half of our new demand for energy, saving us money and keeping the Northwest a healthy and vibrant place to live. NEEA has ranked in the top 100 non-profits and green companies to work for in Oregon, and we “walk our talk” in our LEED-certified headquarters in Portland, Oregon. Come join our team of smart, passionate, and experienced professionals to achieve our mission. If you are looking for a challenging career in an industry with booming potential, you've found the right place! NEEA offers a generous healthcare package, professional development funds, retirement savings with employer matching, remote work options. In addition, we offer a flexible 9/80 schedule to help our employees achieve a better work-life balance.
Environmental Protection Consulting and Education
Environmental Engineering

1997

The Arbor Group takes pride in having been entrusted with the care of some of California's most distinguished properties. Our team, a diverse ensemble of exceptionally talented professionals, shares a passion for arboriculture that is deeply woven into the fabric of our company culture. Our steadfast commitment to putting people first - both our esteemed clients and our dedicated employees - sets the foundation of our operations. We believe that in fostering an environment that encourages growth and learning, we catalyze the development of forward-thinking ideas and innovative solutions that redefine industry standards. In our pursuit of excellence, we continuously invest in cutting-edge technologies and sustainable equipment, modernizing the way we manage the health and vitality of trees. This progressive approach, coupled with our expertise, allows us to navigate the complexities of tree care with precision and efficiency. Our mission is not just about maintaining trees, but about creating enduring partnerships with our clients, promoting a healthier environment, and setting a higher benchmark in the arboriculture industry. Through our unwavering commitment, skilled workforce, and forward-thinking practices, The Arbor Group aims to set a new precedent of excellence in tree care. We are The Arbor Group – where passion meets innovation and talent fuels progress in arboriculture.
Environmental Protection Consulting and Education
Environmental Engineering

2020

Vector Disease Control International (VDCI) partners with municipalities, city and state governments and commercial properties to provide mosquito management services to communities in more than 20 states and internationally. VDCI strives to improve the quality of life in communities through education, surveillance and the control of mosquitoes and other disease vectors, which includes aerial applications, integrated tick and mosquito management programs and emergency response. The mosquito management professionals at VDCI offer supplemental services to existing surveillance and control efforts as well as extensive experience in operating comprehensive programs. For more than 20 years, the VDCI team has played an integral role in disaster relief and disease outbreak with a fleet of 200 trucks and 12 aircraft and is the only company in the U.S. that can manage all aspects of an integrated mosquito management program for emergency response and seasonal situations. VDCI is part of Rentokil, a leading business services company, operating across the United States, Canada and Puerto Rico.
Environmental Protection Consulting and Education
Environmental Engineering

1992

ECORP Consulting, Inc. has assisted public and private land owners with environmental regulation compliance since 1987. We offer full service capability, from initial baseline environmental studies through environmental planning review, permit negotiation, liaison to obtain legal agreements, mitigation design, construction monitoring and compliance reporting. We bring together an experienced multidisciplinary team of environmental and regulatory specialists, terrestrial and aquatic biologists, wetland specialists, habitat restoration specialists, water resources experts, permitting specialists, archaeologists, air quality and noise analysts, unmanned aerial systems (drone) specialists, and geographic information systems specialists. ECORP has established professional working relationships with federal and state regulatory agencies, based on technical excellence and a thorough understanding of regulatory processes. We are experienced with the regulatory requirements of the federal Clean Water Act (CWA), Sections 401, 402, and 404; the National Environmental Policy Act (NEPA); the National Historic Preservation Act (NHPA), Sections 106 and 110; the federal Endangered Species Act (ESA), Sections 7 and 10; the Coastal Zone Management Act (CZMA); the California Fish and Game Code; the California Environmental Quality Act (CEQA); and the California Endangered Species Act (CESA).
Environmental Protection Consulting and Education
Environmental Engineering

1987

Why SkyCycle™ For the Carbon Future: # A Carbon Trifecta: Only SkyCycle™ can address CCU, CCS and direct capture. # A profitable development path: Profits from product sales in early CCU plants will subsidize development scale-up and manufacturability cost-down. # Ready-made for source emitters: Process requires little to none retrofitting needs to current emitter sites, except for pipes to existing smokestacks and is deployable across a multitude of industries. # Low level of energy penalty: World-class energy penalty of 10% at 14% CO2 flue-gas levels; all models for other industries vary only-slightly; diligence for your industrial focus available. # Mineral storage is safe, very stable, environmentally sensitive, and requires no maintenance expense. # No lack of storage candidate sites: Ubiquitous availability of silicate resources, many of which are located near large emitter zones; storage process is also safe, dense, and uncomplicated. # Robust patent portfolio: 68 Patents issued in 60 Countries, 31 Patents pending CarbonFree has developed patented technologies that capture CO2 from stationary point source emitters and transform them into carbon-negative chemicals. Imagine if all industrial manufacturing plants could reduce their CO2 emissions and create green products. SkyCycle and SkyMine create sodium bicarbonate (baking soda), precipitated calcium carbonate (PCC), and hydrochloric acid. CarbonFree’s modular and scalable technology can make this a reality, providing an on-site solution without the need of costly infrastructure to transport and store CO2. CarbonFree is ready to act now with its existing SkyMine facility in San Antonio, Texas and it’s first SkyCyle plant being deployed in 2022. The technology is currently backed by energy-savvy investors including Fortistar, Braemar, BP Energy Ventures, Husky Partners, Carl Berg and Apollo.
Environmental Protection Consulting and Education
Environmental Engineering

2016

Edge Engineering & Science, LLC (EDGE) is a privately owned professional services firm headquartered in Houston, Texas. EDGE was established with the primary goal of providing high quality environmental engineering and scientific consulting services to the oil and gas, energy, chemical and manufacturing industry sectors. Our uniquely qualified staff of engineers and scientists has assisted clients on projects across North America. Consequently, we have the knowledge and technical expertise to provide a variety of environmental services including the siting and permitting of transportation and energy infrastructure projects, conducting environmental engineering and scientific studies, performing federal and state regulatory requirements reviews, strengthening operating compliance programs, conducting compliance auditing, providing due diligence support, and developing and executing computer based impacts evaluations.
Environmental Protection Consulting and Education
Environmental Engineering

2010

SKC is a well-known and respected leader in industrial hygiene and occupational safety. We produced and marketed some of the very first air sample pumps and collection media when the industry first took shape in the 1970s. Since then, SKC has continued to lead the industry forward by offering innovative technologies as well as advanced scientific knowledge and expertise to both customers and the marketplace in general. SKC has also continued to lead with a high level of integrity, a focus on continuous improvement, and a sincere dedication to the safety and well-being of people. SKC is about the power of science in the service of people—that people, their safety, their quality of life and their productivity, is the driving force behind every decision and action SKC makes. This translates into air sampling solutions and expertise that help you keep workers healthy and safe every day. Learn more: https://youtu.be/vM0TNEpTeYQ
Environmental Protection Consulting and Education
Environmental Engineering

1962

We solve our clients' complex environmental challenges with accuracy and integrity. We're 100% employee owned and each of us has a stake in making Farallon the best choice for your environmental project needs. Our diverse range of superior-quality environmental services include: - Contaminated Site Investigation and Cleanup - Natural Resources - Due Diligence - Insurance Claim Evaluation - Mediation and Litigation Support - Engineering Services - Permitting and Compliance Support We are always looking for exceptional talent. Please check website for current openings: http://www.farallonconsulting.com/careers.
Environmental Protection Consulting and Education
Environmental Engineering

1998

With a staff of over 150 employees in the San Francisco, Sacramento, Los Angeles, San Diego, Modesto, Bakersfield, Fresno, Portland, Chicago, and Grand Rapids offices, Forensic Analytical Consulting Services has become one of the country's largest and most diverse industrial hygiene consulting groups. FACS is staffed with many of today's most experienced certified industrial hygienists (CIHs), subject matter experts, project managers, site technicians, and hazardous building material accreditation trainers . FACS is skilled at providing asbestos, lead and mold surveys, indoor air quality evaluations, occupational exposure monitoring, health and safety plans, litigation support, hazardous building material training and a variety of other services. Forensic Analytical frequently services the industrial hygiene needs of contractors, facility managers, hospitals, building owners, attorneys, insurance companies and others.
Environmental Protection Consulting and Education
Environmental Engineering

1983

Environmental Management Specialists, Inc. (EMS) is a professional environmental contractor specializing in remediation, emergency response, tank and utility services, and waste services. We operate from strategically-located service centers providing coverage across Ohio, Pennsylvania, West Virginia, Kentucky, Indiana, Illinois, southern Wisconsin, southern Michigan, central Tennessee, northern Georgia, northern Alabama, and beyond. We serve a multitude of customers including transportation companies, energy companies, environmental consultants, industrial facilities, environmental service companies, general contractors, property owners, and the public sector through our Environmental Services and Remediation Services divisions. We employ an experienced, dedicated, and highly-qualified team of project managers, site supervisors, equipment operators, hazmat technicians, and business development professionals. We're experts at helping clients identify ways to efficiently and cost-effectively manage environmental projects. Our trained professionals know how to do the job safely, and we do it the right way every time. Give us a call today to discuss your next project! Contact the EMS 24/7 "ONE CALL"​ Dispatch at 877.816.9111 for project scheduling and emergency response. We deploy from our regional offices located in Cleveland (headquarters), Atlanta, Chattanooga, Chicago, Cincinnati, Columbus, Indianapolis, Philadelphia, Pittsburgh, Steubenville, Toledo and Zanesville. For more information, visit us online at: www.EMSonsite.com.
Environmental Protection Consulting and Education
Environmental Engineering

2000

With more than 37 years of experience, FirstCarbon Solutions (FCS), is a leading provider of environmental, sustainability, and compliance solutions, delivering fully-integrated consulting, software, and data management services. Known for being highly responsive to client needs, FCS is dedicated to providing excellent service, accurate research, thoughtful recommendations, and innovative solutions for the mutual success of our clients and our practice. We assist our clients in achieving the delicate—and sometimes elusive—balance between development and environmental protection. Our associates and their expertise are fundamental to this success. Our team’s expertise includes: › Legally-defensible California Environmental Quality Act (CEQA) and National Environmental Policy Act (NEPA) environmental documentation › Environmental compliance services › Entitlements and regulatory permitting services › Natural resources management › Cultural resources management › Air quality and greenhouse gas (GHG) management and analyses › Noise management and analyses › Visual simulation and analysis services › Software and data management › Environmental, social, and governance (ESG) services › An in-house team for project legal and other support Interested in joining our team? We are always on the lookout for sharp, energetic team members excited to share their ideas and make an impact. Check out our careers page at: https://www.firstcarbonsolutions.com/join-us/
Environmental Protection Consulting and Education
Environmental Engineering

1982

The Open Space Institute is a national leader in land conservation and efforts to make parks and other protected land more welcoming for all. Since 1974, OSI has partnered in the protection of more than 2.5 million at-risk and environmentally sensitive acres in the eastern U.S. and Canada. OSI’s land protection promotes clean air and water, improves access to recreation, provides wildlife habitat, strengthens communities, and combats the devastating effects of extreme weather and flooding.
Environmental Protection Consulting and Education
Environmental Engineering

1974

The Freshwater Trust is focused on using insight to solve problems at the intersection of water and the economy. By leveraging analytics, science, policy reform, and incentive-based solutions, we’re working to build and apply data-driven conservation solutions that scale. What we do: Using science, technology, policy and finance, we build and manage solutions that improve water quality and quantity. With data and 21st century tools and technologies, we enable smarter watershed management to happen faster and at a greater scale. We also employ our solutions on the ground, such as riparian restoration and groundwater replenishment, for the benefit of both watersheds and the plants, animals and people that rely on them. Why we do what we do: Rivers are the backbone of our country. Yet decades of treating a finite resource as infinite has had severe consequences. More than 2.3 billion people worldwide live in river basins that are under stress, and half the rivers and streams in America are unhealthy and not functioning as they should. There are deadly algae blooms and lead-contaminated drinking water, taps running dry, and agricultural industries and wildlife at risk. This is not sustainable. We must restore our waterways faster than we degrade them. How we do what we do: We’re pioneers of a new approach. “Quantified Conservation” is about using data and technology to ensure every restoration action taken translates to a positive outcome. First, we identify and prioritize restoration opportunities to maximize benefits for a watershed. Then, we work with willing landowners to restore habitat in key places, to adapt practices, or to keep more water in rivers and streams that need it. Along the way, we track how every action we take is making a difference for our freshwater resources, our wildlife and our communities.
Environmental Protection Consulting and Education
Environmental Engineering

1983

Encino specializes in emissions performance testing (all criteria and GHG pollutants), LDAR leak detection and repair, CEMS continuous emissions monitoring systems, high-resolution satellite methane detection, and advanced environmental data software for the measurement and minimization of emissions to help ensure regulatory compliance and meeting ESG strategies and objectives.
Environmental Protection Consulting and Education
Environmental Engineering

2010

For 40 years, the consulting engineers at HRP have worked together with our clients to assure that they reach their intended business goals and achieve the right solutions to their environmental and civil engineering challenges. HRP Associates, Inc. was founded in 1982 to serve the environmental needs of the regulated community subject to the newly-enacted Resource Conservation Recovery Act (RCRA). Today, HRP is a multidisciplinary environmental and engineering consulting firm, with 10 offices throughout the U.S. We have completed projects in nearly every state. Not only do we provide critical services to clients throughout the U.S., we have also extended our Global Consulting Services to over twenty countries throughout the Americas, Europe, and Asia. At HRP, as part of our continuous improvement policy, we constantly strive for and achieve new and better methods to lead your projects to successful completion. Our engineering consultants do this by listening carefully to your concerns, by innovating new ideas and processes internally, and by implementing solutions that are flexible, effective and sustainable. Our collaborative business approach means you will always be fully involved and informed through the development and completion of your project. We are sure that you, like our current clients, will find that this partnership approach provides your company with the unsurpassed level of service and integrity that you expect. HRP will help you "Move Your Environment Forward."​
Environmental Protection Consulting and Education
Environmental Engineering

1982

Metrolina Landscape serves clients that require the highest standards in our industry. For over 40 years we have built our reputation by working with discerning real estate developers, landscape architects, construction contractors, property managers and homeowners. We have a staff of over 200 fully trained professionals and a fleet of more than 150 vehicles. Our combination of state-of-the-art equipment and detail-oriented employees makes Metrolina Landscape one of the most successful landscape companies in the region.
Environmental Protection Consulting and Education
Environmental Engineering

1982

CTR is a full service environmental company. We provide the services - emergency response services 365/24/7, tank cleaning, removal, installation, water and soil remediation, water treatment systems, building demolition, facility closures, decontamination, high-pressure washing, confined space entry work, transportation and disposal of hazardous and non hazardous waste in bulk and non-bulk containers, lab pack services and many more. SAFETY is our #1 priority and our OSHA and EMR rating prove it. CALL OUR OFFICE TO LEARN MORE ABOUT HOW WE CAN WORK TOGETHER - 203-384-6020
Environmental Protection Consulting and Education
Environmental Engineering

1994

We are a collaborative, solving unprecedented challenges with planning, design, science, and kindness. With offices in Berkeley, Irvine, Lake Tahoe, Sacramento, and San Diego, and remote team members in over a dozen cities around the nation, our professionals have the expertise to help clients unravel complicated and unprecedented planning and environmental situations. We first listen to understand our clients’ needs and then apply our experience, creativity, enthusiasm, and credibility to collaboratively identify effective solutions. A caring, enjoyable, and career-oriented workplace remains a paramount priority to support our office family. Please visit our website, where in the "Library"​ we share useful environmental and planning information about relevant regulatory changes, new research, court decisions, and the like, as well as our Facebook page, where we provide a little insight into our office culture.
Environmental Protection Consulting and Education
Environmental Engineering

2010

CompuCycle is Houston's first woman-owned, full-service, state-of-the-art, e-Stewards certified electronics recycling, processing, and plastics plant. For 25+ years, we have consistently been a leader in providing tailored end-of-life IT asset management and disposal services to corporations. Our Mission: To be the most transparent and trustworthy partner in responsible and secure end-of-life IT asset management. We offer a comprehensive range of responsible electronic recycling services, hard drive data destruction, as well as data center decommissioning. Differentiators: What sets us apart is our fully automated in-house electronics shredding and plastics plant. As the final destination for your electronics and IT assets, we oversee each step of the recycling process, eliminating downstream vendors and security issues that often arise elsewhere. All scrap electronics are shredded into raw materials (steel, copper, aluminum, plastics and boards) and shipped directly to the mills and refineries. Our e-scrap shredding services and new plastics plant make us the best solution for safe, and secure electronic asset disposal with ensured brand protection. Why Partner with CompuCycle: •Reputable: Industry-leading certifications including e-Stewards, R2v3, ISO 9001, ISO 14001, ISO 27001, ISO 45001, NAID AAA & WBENC. •Secure: Controlled facility with a secure chain of custody for branded/proprietary equipment throughout the entire IT asset disposal process. •Transparency: Reports & Certificates available in a 24/7 online portal. •Environmental Scorecards: Reports highlighting the weight diverted from landfills and the reduction of carbon footprint. Core Services: • Responsible IT Asset Disposal • Secure Data Destruction and Hard Drive Shredding • IT Asset Refurbishing and Reuse • Data Center Decommissioning Services • IT Asset Inventory/Validation Services • White Glove Pack/Palletize Please contact khess@compucycle.com to create a tailored IT Asset disposal program.
Environmental Protection Consulting and Education
Environmental Engineering

1996

Founded in 1993, Citadel EHS provides comprehensive environmental, health, safety, and sustainability consulting solutions to meet the needs of both the public and private sectors. Our team of experts integrates a thorough knowledge of the built environment with the fields of architecture, industrial hygiene, safety, construction, geology, sustainability, and environmental sciences. Citadel offers an extensive line of services applicable to the various “stages” of property development, ownership, and operations: from due diligence to finance/acquisition, through design and construction, to facility operation and personnel management, and again through property disposition. Our industry experts can augment your staff during any stage of the lifecycle through our staff outsourcing program, whereby our staff becomes an extension of your staff – seamlessly and cost effectively. We also provide litigation support as well as expert-witness services, for both plaintiffs and defendants. Our abilities to thoroughly assess our clients’ environmental health, safety, and sustainability challenges, and resolve them in the most expedient manner, strengthen the value and resiliency of their real estate portfolios and core operations. We welcome the chance to show you why the world’s most prominent companies and public entities place their continued trust in Citadel EHS.
Environmental Protection Consulting and Education
Environmental Engineering

1993

At World Water Works, we strive to provide industrial and municipal customers with proven and cost-effective wastewater treatment solutions that deliver superior effluent quality. Our passion and adaptability allow us to deliver value through expertly engineered products and technologies. Founded in 1998, we have an unparalleled depth of application knowledge and experience. With offices located throughout the United States, India and the United Arab Emirates, and a fully integrated in-house manufacturing facility at our headquarters in Oklahoma City, Oklahoma, we are strategically positioned to control project schedules and deliver the highest quality products and solutions at the lowest cost of ownership. We optimize each wastewater treatment solution by working hand-in-hand with you.
Environmental Protection Consulting and Education
Environmental Engineering

1998

Stillwater Sciences is committed to creating a better world through science. We strive to balance water supply, flood protection, energy generation, recreation, and other beneficial uses of water and watersheds with science-based natural resource management and habitat restoration. By integrating geomorphic and biological research to understand critical ecosystem processes, we work to identify effective measures for managing rivers and their floodplains as functioning ecosystems within the context of current conditions and future climate change. We seek consensus with our clients and partners, and integrate our values into all we do. We promote rigorous science. We bring the best science to bear on all projects and deliverables with a rigorous, and often peer-reviewed approach. We respect the scientific process to achieve the best possible results. Stakeholders can rally behind scientific facts (with acceptable levels of uncertainty) instead of positional goals and interests, ensuring a more sustainable and long-term solution. We embrace a holistic and integrative process. Our process is collaborative, innovative, and sometimes messy. Our integrative approach means that we think holistically and practically, providing solutions that reflect a watershed and ecosystem-wide context. We embrace continuous improvement, seek out new ideas, and question “how things have always been done.” We promote a culture of initiative, trust, and respect. Our work environment is fair, flexible, and fun. We are open and transparent in our communications, and aren’t afraid to have difficult conversations. At Stillwater, everyone is willing to lend a hand to get the job done, no matter the job. We are employee-owned, and are committed to maintaining our culture and ensuring our longevity into the future.
Environmental Protection Consulting and Education
Environmental Engineering

1996

Water | Wastewater | Greywater | Stormwater BioMicrobics, SeptiTech, and Scienco/FAST manufacture integrated, sustainable, water utilization treatment systems land and sea. As a leading manufacturer of Decentralized & Distributed Systems, we are at the forefront of BETTER Water Efficiency with innovative, advanced wastewater treatment systems from 150 gallons [500 L] to 2 million gallons [7570 m3] per day treatment capacity! Through a worldwide distributor network, we meet the highest performance expectations, nutrient reduction/removal requirements, and safety standards with decades of real world operating history. Designed for new/existing residential development to high-strength commercial, municipal capabilities, and marine vessels, BioMicrobics has more than 80,000 installations in over 80 countries! BioMicrobics has been recognized as a leader in “Integrated Water Resources Management” and Top 10 Green Building Product of the Year!
Environmental Protection Consulting and Education
Environmental Engineering

1996

Entegrity is an energy services, sustainability and solar development company specializing in the implementation of energy conservation and renewable energy projects. We are uniquely qualified to deliver innovative and sustainable solutions to optimize building performance. We help our clients realize long-term operational savings by focusing on their needs: selecting the most cost-effective scope, contract structure and financing strategy available. Our comprehensive service package includes energy savings performance contracting, commissioning, energy modeling, building testing, lighting solutions, renewable energy, water conservation and sustainability consulting. For more information about Entegrity visit www.entegritypartners.com.
Environmental Protection Consulting and Education
Environmental Engineering

2007

Since 1993, Pinyon Environmental, Inc. (Pinyon) has provided demonstrated environmental consulting services to a wide variety of clients in both the private and public sectors. The company employs over 100 environmental professionals including Professional Engineers, biologists, NEPA specialists, planners, geologists, environmental scientists and technicians, economists, historians, archaeologists, landscape architects, air and noise quality specialists, sustainability professionals, and industrial hygiene professionals. Pinyon has accredited SITES AP and Envision (Institute for Sustainable Infrastructure) experts that can help develop impactful projects. Headquartered in Lakewood, Colorado, Pinyon has satellite offices in Colorado Springs and Northern Colorado; Phoenix and Flagstaff, Arizona; and Bozeman, Montana. Pinyon serves clients in federal, local, and state government, as well as the energy, transportation, utilities, mining, commercial, and industrial market sectors. Our reputation as the “go-to” environmental firm is due to our staff’s combined experience, knowledge, and expertise. We work with our clients to understand their needs, educate them on environmental compliance issues, and implement efficient and cost effective solutions. Pinyon’s focus on innovation allows us to challenge convention and continually improve the processes, products, and services that we offer. Environmental challenges can affect any project in any industry. Pinyon works collaboratively with project engineers, planners, contractors, government agencies and authorities to provide the technical resources, expertise, assistance, and strategies to minimize the environmental risk associated with projects. By understanding project needs from an environmental context, regulatory framework, and engineering limitations, Pinyon addresses issues with the client to ensure projects are designed with the least impact while meeting environmental regulations and requirements.
Environmental Protection Consulting and Education
Environmental Engineering

1993

At SAMCO Technologies, Inc., we provide cutting-edge water, wastewater, and process separation solutions for some of the world’s most demanding industries, including power generation, oil & gas, chemical processing, refineries, semiconductors, microelectronics, and other emerging markets. With over 40 years of experience, we help industrial clients tackle complex water treatment, purification, and wastewater management challenges through advanced technologies like membrane filtration, ion exchange, demineralization, wastewater recycling, and ZLD systems. Our custom-engineered solutions optimize efficiency, ensure regulatory compliance, and support sustainability goals.
Environmental Protection Consulting and Education
Environmental Engineering

1983

EPD was created to assist clients through the complex regulatory and interdisciplinary process required to bring projects to fruition in the most thoughtful manner. It takes a team of experts in each discipline who can navigate the entire process of what is required before you start. Planning, entitlement, and environmental expertise should not be independent processes. Each of these disciplines affect the outcome of a project and the cost to completion. Planning sets the stage for the entitlement and it is influenced by environmental conditions and requirements. EPD’s success is in its holistic approach in understanding that planning, entitlement and environmental services cannot be thought of in separate silos. EPD works with its private and public sector clients to meet the overall objectives of each project, while supporting the economic, environmental sustainability and long-term objectives of all stakeholders.
Environmental Protection Consulting and Education
Environmental Engineering

2013

Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing to SCR baseline testing and optimization to hazardous air pollutant (HAPs) studies and CEMS RATAs. The strength of CleanAir's organization is its solid base of professionals with boiler and air emissions testing, combustion, flue gas cleaning, engineering, heat rejection, regulatory, and analytical experience which have performed thousands of projects on hundreds of utility, industrial, municipal solid-waste (MSW) and hazardous waste boilers in the United States and abroad. In addition to the strength of our professional organization, CleanAir has extensive equipment resources maintained through CleanAir Instrument Rental as well as CleanAir Express, which provides in-house manufacturing capabilities for customized sampling equipment such as HVT probes and multi-point sampling grids.
Environmental Protection Consulting and Education
Environmental Engineering

1972

Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment. As a comprehensive technology and solution provider, we deliver a wide range of proprietary technologies that support municipalities and private industries in addressing their most pressing environmental challenges. Our offerings include advanced solutions for wastewater treatment, biogas and organic waste processing, nitrogen removal, and sludge volume reduction. In addition to our technology portfolio, Tomorrow Water provides turnkey services for private sector clients. Our capabilities encompass engineering, procurement, and construction (EPC), as well as system integration and long-term operation and maintenance (O&M) support. This integrated approach allows us to deliver customized, end-to-end solutions that meet the evolving needs of industrial partners and infrastructure developers. While our work today addresses current environmental and operational demands, we are also deeply focused on shaping the future. We believe that wastewater treatment plants must evolve from being cost centers to becoming profit-generating, resource-optimizing infrastructure. In a world increasingly challenged by limited land, energy constraints, and water scarcity, particularly due to the rapid rise of data centers, we see wastewater treatment facilities as key platforms for sustainable innovation. Our Co-Flow Campus concept reflects this vision. By reimagining the wastewater treatment plant as an integrated infrastructure hub, Tomorrow Water is laying the groundwork for a future where environmental, energy, and digital infrastructures are co-located to create shared value and sustainable impact for future generations. Innovation Beyond Waste, Go Impact Makers!
Environmental Protection Consulting and Education
Environmental Engineering

1998

Site assessment platform for renewable energy developers Transect's platform helps discover and assess high-quality sites in minutes. It's a game-changer for developers, offering real-time analysis for renewable energy, utilities, oil and gas, and infrastructure projects. With Transect, you can find and assess ideal sites in minutes, not weeks. Key features include swift site pinpointing, critical issues analysis, real-time data updates, versatility across industries, user-friendly interface, efficiency for cost savings, and proactive risk mitigation. Make informed, sustainable decisions with Transect, your partner in shaping a responsible future.
Environmental Protection Consulting and Education
Environmental Engineering

2016

The Arizona Department of Water Resources defends and enhances Arizona’s water supplies, assuring water certainty, economic prosperity and quality of life now and for future generations. The Department’s duties include protecting Arizona’s rights to the Colorado River, as well as ensuring the health and reliability of its in-state surface water resources and its underground aquifers.
Environmental Protection Consulting and Education
Environmental Engineering

1980

Vision: We are engineers and scientists who have a passion for sustainable, clean water. Our clients and partners share our vision for building thriving ecosystems and better places to live. We are a water science and engineering firm working with clients in the United States and internationally. Our company was founded almost 50 years ago with a simple mission: work with great people, do innovative and impactful work, and help restore and protect our water environment. These ideals have guided our culture, allowing us to create an outstanding team of talented people who use their work to build thriving ecosystems and better places to live. We act as partners with our clients, who trust our ingenuity, expertise, and passion for clean, sustainable water. Our reward for staying steadfast to this vision and mission is a national reputation for high-quality, advanced work — a reputation that has attracted some of the top people, clients, and partners in our field today. LimnoTech is an employee-owned company. Together, we deliver excellence in our work and service to our clients.
Environmental Protection Consulting and Education
Environmental Engineering

1975

Driving smart decisions has been our passion since 1975, and we continue to do this by recruiting talented individuals in the fields of Chemistry, Biochemistry, Biology, Microbiology, Animal Science, Agronomy, Agricultural Science, or Environmental Science. Science is moving forward every day—new research, new technologies, and new opportunities. Guided by our core values, we meet any challenge with creative solutions to support not just our local community, but the global community. We hope you’ll join us! Midwest Laboratories is a full-scale analytical laboratory which offers analysis to a wide array of industries: Agriculture, Animal Feed, Environmental, Food, Fuels, and Pet Food.
Environmental Protection Consulting and Education
Environmental Engineering

1975

PPM Consultants is an environmental and engineering consulting firm providing services to industrial, commercial, and governmental clients. PPM has achieved steady growth and success by offering practical, cost-effective solutions to our clients' environmental issues. Founded in 1994, PPM now operates eight offices and eight service centers in the U.S. PPM is consistently listed on the ENR 200 list of the largest environmental consulting firms in the country and has been listed twice on the Inc. 500 list of fastest-growing privately held companies in the country. We believe our success is based on our unwavering commitment to exceeding client expectations in every facet of our service, and we recognize that our organization's success is inherently tied to yours. Our clients succeed when the delivery of our services lowers their costs, reduces their environmental liabilities, and allows them to return to focusing on their core business. We measure success by one other yardstick: establishment of long-term relationships with our clients. PPM only posts open positions on our official careers page at https://www.ppmco.com/. We will never ask for payment, gift cards, or personal financial information during the hiring process.
Environmental Protection Consulting and Education
Environmental Engineering

1994

Westervelt Ecological Services creates mitigation and conservation banks and provides environmental mitigation and habitat planning services to landowners, businesses, and government agencies. We bring together one of the oldest and most established privately-held forestry companies with a long history of land stewardship and sustainable forest practices. Our established industry leaders excel in the field of wetland and endangered species mitigation services, to create a nationwide habitat mitigation company.
Environmental Protection Consulting and Education
Environmental Engineering

2006

PM Environmental is an environmental risk expert focused on business-minded solutions. We have over 30 years of experience in consulting and managing a wide variety of environmental, engineering, industrial hygiene, energy and development projects. We understand the science involved, the regulations that must be adhered to, and the need to provide you specific, relevant information, so you understand your options and can make solid business decisions. The team at PM Environmental serves businesses, banks, government agencies, and numerous other clients throughout the United States. The firm was built on and continues to operate on several core fundamentals, including integrity, safety, client focus, technical knowledge, timely management, communication, and teamwork. PM team members excel in these areas, which enables the consistent coordination and successful completion of projects to meet client objectives. PM invites you to learn more at our website (www.pmenv.com).
Environmental Protection Consulting and Education
Environmental Engineering

1992

Established in 2002, Ayuda has successfully performed $300M+ in government and commercial contracts. Ayuda is a premier provider of environmental remediation, construction, environmental A-E, environmental compliance, cultural & natural resources, and industrial hygiene services. Ayuda's NAICS Codes include 562910, 541330, 541620, 238910, 236220, 237990, 562211, 562112, and 541690.
Environmental Protection Consulting and Education
Environmental Engineering

2002

de maximis Data Management Solutions (ddms) is a service-oriented company that provides world-class environmental data management, data validation, visualization and enterprise implementation services to a multitude of industries. ddms employs industry leading project managers, scientists, database administrators, geospatial professionals, software engineers and cartographers who collectively have deep domain experience and represent the top environmental data management team in the field.
Environmental Protection Consulting and Education
Environmental Engineering

2006

On June 14, 2022, Element Markets and Bluesource formally merged under a new brand name, Anew™, and introduced “Climate as a Service” – an approach that offers companies and organizations a seamless solution to navigating the increasingly complex landscape of environmental responsibility. Visit anewclimate.com to learn more. Founded in 2005, Element Markets is a leading renewable natural gas marketing and environmental commodities company that applies its diverse expertise to provide structured environmental compliance and optimization services to corporate and institutional clients. The company has a successful track record within the renewable natural gas, low carbon fuels, emissions, carbon, and renewable energy credit markets.
Environmental Protection Consulting and Education
Environmental Engineering

2005

Routeware helps mid-large private and municipal haulers and cities relieve operational and cost pressures and overcome environmental challenges. More than 1,000 customers throughout North America and the United Kingdom rely on our technology to make trucks safer, optimize routes, streamline operations, and engage and educate communities. A team of nearly 250 employees works diligently to create the most efficient and effective technologies across every stage of the waste collection lifecycle.
Environmental Protection Consulting and Education
Environmental Engineering

1999

Spectra Tech is an engineering, environmental, and nuclear services company that focuses on providing high quality and cost-effective technical solutions for our Federal Government and commercial clients worldwide. Founded as a one-person company in 1995 by Loong Yong, Ph.D., Spectra Tech is today a leading engineering, environmental, and nuclear services company with operations across the country. And in 2025, Spectra Tech was named a Top Workplace in the Greater Knoxville Area. Spectra Tech's core expertise includes nuclear safety, nuclear criticality safety, and radiological protection. Our clients include U.S. Federal agencies, government contractors, and private commercial companies. Throughout the company’s history, Spectra Tech has maintained an excellent track record for customer satisfaction, high employee morale, and job safety. Our highly qualified and experienced professional staff members are committed to providing clients with the highest level of service. Spectra Tech engineers and scientists have backgrounds in engineering, construction management, environmental remediation, hazardous and radioactive waste management, decontamination and decommissioning (D&D), nuclear facility safety and operations, radiation protection, regulatory compliance, Quality Assurance, contract management, and procurement. At Spectra Tech, Inc., our recruitment team is powered by real people in real time—personally reviewing every application with care and integrity. We take pride in identifying and recruiting top-tier talent while maintaining full alignment with federal regulations, EEOC standards, and fair hiring practices that reflect our commitment to excellence.
Environmental Protection Consulting and Education
Environmental Engineering

1995

Formed in 2017 following the consolidation of independent water treatment solution providers Emefcy and RWL Water, Fluence Corporation was established with the vision of becoming the leading global provider of fast-to-deploy decentralized and packaged water and wastewater treatment solutions. With some 300 highly-trained water professionals with experience operating in 70 countries Fluence provides local and sustainable treatment and reuse solutions while empowering businesses and communities worldwide to make the most of their water resources.
Environmental Protection Consulting and Education
Environmental Engineering

2017

Pheasants Forever and Quail Forever make up the nation's largest nonprofit organization dedicated to upland habitat conservation. This community of more than 500,000 members, supporters and partners is dedicated to the protection of our uplands through habitat improvement, public access, education and advocacy. A network of 754 local chapters spread across North America determine how 100 percent of their locally raised funds are spent — the only national conservation organization that operates through this grassroots structure. Since its creation in 1982, “The Habitat Organization” has dedicated more than $1 billion to 580,000 habitat projects benefiting 28.8 million acres. At the heart of Pheasants Forever is the unique grassroots system of fundraising and project development that allows members to see the direct result of their contributions. Pheasants Forever and its quail division, Quail Forever, empower county and local chapters with the responsibility to determine how 100 percent of their locally raised conservation funds will be spent - the only national conservation organization that operates through this truly grassroots structure. As a result, chapter volunteers are able to see the fruits of their efforts locally, while belonging to a larger national organization with a voice on federal and state conservation policy.
Environmental Protection Consulting and Education
Environmental Engineering

1982

Founded in 1981, AKRF employs 400 planners, engineers, scientists, economists, landscape designers, geologists, historians, archaeologists, acousticians, and many related professionals transforming environments by creatively solving their most complex challenges. We believe that to be original is to be transformative.
Environmental Protection Consulting and Education
Environmental Engineering

1981

3Degrees is a leading global climate solutions provider, pioneer of environmental markets, and Certified B Corporation. Our work is driven by the need for urgent climate action, and has been for 20 years. We deliver a full suite of clean energy and decarbonization solutions to help global Fortune 500 companies and other organizations achieve their climate goals and address emissions in the fight against climate change. The 3Degrees team brings a commitment to integrity and deep expertise in climate strategy and implementation across scopes 1, 2, and 3 emissions, including global environmental commodities, renewable energy and carbon project development, supply chain decarbonization, and clean fuel standards. We help develop and deploy impactful climate solutions that make good business sense and advance an equitable transition to the low-carbon future. Learn more at 3Degrees.com or follow us on LinkedIn.
Environmental Protection Consulting and Education
Environmental Engineering

2007

The Student Conservation Association (SCA) is the largest provider of hands-on environmental conservation programs for youth and adults. Founded in 1957, the SCA has provided more than 100,000 young people with opportunities to protect the planet through conservation projects at national parks, marine sanctuaries, cultural landmarks, and community green spaces across the country. After working with the SCA, our program participants emerge with increased environmental awareness, social responsibility and leadership skills. The SCA is dedicated to building the next generation of conservation leaders while inspiring lifelong protection of the environment and the communities we serve.
Environmental Protection Consulting and Education
Environmental Engineering

1957

Ceres Environmental Services, Inc. is a crisis management firm specializing in rapid response, disaster recovery, environmental hazards, logistics, demolition, and debris operations after major natural and human-made catastrophes. Ceres has successfully managed some of the largest and most complex disaster response projects across the United States and abroad.
Environmental Protection Consulting and Education
Environmental Engineering

1976

Ironclad Environmental Solutions is the leading provider of custom waste management solutions, supported by the largest national fleet of innovative, top-quality specialty assets. Led by our team of experts, Ironclad has decades of experience serving the unique needs of industries, from refineries and oil and gas exploration to manufacturing and municipal services. If a customer has liquid or solid waste, Ironclad is prepared to store it, haul it, hull or filter it, all while prioritizing sustainability, dependability, and safety. We pride ourselves on delivering around-the-clock service to our customers, and treat every one of our clients as a member of the Ironclad family. Let our reliability become your greatest strength.
Environmental Protection Consulting and Education
Environmental Engineering

1983

For more than 30 years, WSSI has been the trusted partner in environmental, regulatory, cultural resources, and water resources engineering consulting. We collaborate with clients to achieve the right balance between land use goals and environmental stewardship. With expertise and proven creative strategies, our team of professionals delivers and implements solutions so our clients can confidently navigate complex regulations in pursuit of positive outcomes for both the project and the environment.
Environmental Protection Consulting and Education
Environmental Engineering

1991

List of Environmental Engineering companies in United States (US)

Company Name

Location

Category

Employees

Website

New York, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://greenprojecttech.com

Portland, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

https://neea.org

Irvine, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

https://www.thearborgrp.com

Little Rock, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://vdci.net

Rocklin, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.ecorpconsulting.com/

San Antonio, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://carbonfree.cc

Houston, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.edge-es.com

Eighty Four, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

https://www.skcinc.com

Bellevue, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.farallonconsulting.com

Hayward, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.facs.com

Cleveland, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.EMSonsite.com

Irvine, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.firstcarbonsolutions.com

New York, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.openspaceinstitute.org

Portland, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.thefreshwatertrust.org

Katy, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.encinoenviron.com

Farmington, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.hrpassociates.com

Charlotte, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.metrolinalandscape.com/

Bridgeport, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.cttank.com

Sacramento, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.ascent.inc

Houston, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

https://compucycle.com

Glendale, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.citadelEHS.com

Oklahoma City, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.WorldWaterWorks.com

Berkeley, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.stillwatersci.com/

Lenexa, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.biomicrobics.com

Little Rock, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.entegritypartners.com/

Lakewood, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.pinyon-env.com

Buffalo, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.samcotech.com

Irvine, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

https://epdsolutions.com

Palatine, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.cleanair.com

Anaheim, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.tomorrowwater.com

San Antonio, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

https://www.transect.com/

Phoenix, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

https://www.azwater.gov/

Ann Arbor, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

https://www.limno.com

Omaha, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

https://midwestlabs.com/

Birmingham Office, United States (US)

Environment
+1
Environment, Science and Engineering

100-150

http://www.ppmco.com

Sacramento, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.wesmitigation.com/

Lansing, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.pmenv.com/

Denver, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

https://www.ayudacompanies.com

St Paul, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.ddmsinc.com

Houston, United States (US)

Environment
+1
Environment, Science and Engineering

50-100

http://www.anewclimate.com

Austin, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://www.routeware.com

Oak Ridge, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://spectratechinc.com

Minneapolis, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

https://www.fluencecorp.com

St. Paul, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://www.pheasantsforever.org

New York, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://www.akrf.com

San Francisco, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://www.3degrees.com

Arlington, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://www.thesca.org

Sarasota, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://www.ceresenv.com

Houston, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://IroncladEnvironmental.com

Gainesville, United States (US)

Environment
+1
Environment, Science and Engineering

200-500

http://www.wetlands.com/

400/817 results

Frequently asked questions

Updated 23 October 2026

What is Enterprise League?

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