VoIP Companies in United Kingdom (UK)

VoIP companies build, develop, license, and operate software products, platforms, and developer tools for businesses, developers, and end users across industries. This page lists companies in the VoIP sector, with structured profile data to support discovery and comparison. The directory currently holds 21 companies in this sector. The largest share of listings is based in London. Related sectors on Enterprise League include Artificial Intelligence, Blockchain Technology, Big Data and BI, Browser Extensions, Business Information Systems, App Discovery, Assistive Technology.

21 companies

London top city

VoIP

List of VoIP companies in United Kingdom (UK)

21 companies

Sort by

VoIPstudio.com

London, United Kingdom (UK)

We are an experienced business VoIP service provider with a difference, allowing our subscribers to use their system anywhere in the world. We offer a reliable, low-cost service, that is trusted by thousands of users from over 60 countries, including the USA, Canada, and the UK.

Telecommunications

Social

VoIP

2009

View Profile

Glasscubes

London, United Kingdom (UK)

Secure online workspaces that are user-friendly and quick to implement. Glasscubes is trusted by high performing teams - big and small. It provides an efficient way to collaborate, by storing and sharing information outside of your organisation's firewall that's secure, accurate and accessible from anywhere. Whether you need to connect with co-workers, clients or partners, Glasscubes ensures that you all work together in the most productive way.

Software

VoIP

2008

View Profile

Multiply Software

London, United Kingdom (UK)

Multiply is the ultimate repricing tool for ambitious retailers. Sophisticated algorithms constantly monitor your competitors and optimize your prices across all your channels up to 30x per hour. You’ll find the ‘Goldilocks-perfect’ pricing sweet spot; just low enough to win the Buy Box, but higher than you imagined possible (thanks to hidden factors like vendor reputation and competitor shipping). Our platform integrates with 30+ channels - including popular marketplaces like Amazon, comparison sites like Google Shopping, and your own storefront. Channel-specific pricing strategies adapt to each channel’s unique competitive environment for maximum revenues. Whether you're a one-man show or a 1000-person multinational, Multiply's pricing platform can help - as long as you're competing directly with retailers selling identical products. Start seeing results in just hours. Your dedicated account manager will help you define your pricing strategy and integrate with your tools and data feeds. Multiply will automatically take care of the rest. And when you need help, our engineers and multi-tier, 365-day-per-year support team resolve 90% of queries within 24 hours.

Software

Business Information Systems

VoIP

Information and Communications Technology (ICT)

2017

View Profile

Sign In Scheduling (formerly 10to8)

Milton, United Kingdom (UK)

Powering appointments for time better spent. Sign In Scheduling provides a system for small businesses and independent practitioners to transform the way they manage customer bookings. Using 10to8 will increase bookings, reduce admin-time and eliminate no-shows. More Bookings: • 24/7 accessibility with a customise business booking page • Professional automatic email and text reminders • Up-to-date calendar which fills last-minute slots Save Time: • Customers book, change or cancel appointments by themselves • Conversations with clients displayed straight from the calendar • Automated appointment reminders cut no-shows by 90% • Mobile app available for remote access Sign In Scheduling fills your diary 24/7 and helps you interact with your clients in a better way. For more information, visit our website.

Software

VoIP

2011

View Profile

Greenlight Innovation Ltd

Dundee Technology Park, United Kingdom (UK)

Our cloud-based call centre solution gives you predictive dialling, agent scripting, inbound call handling, and a powerful CRM system, developed by Greenlight for smarter business.

IT Services

IT Consulting Services

Social

VoIP

2010

View Profile

Crises Control

London, United Kingdom (UK)

In a crisis event or when time is of the essence with a touch of your screen, Crises Control enables you to send pre-defined or customised two-way and contextually aware notifications to global audience using our many networks. These include Push, Emails, SMS, Phone calls or any combination. Our out-of-the-box, SaaS-based, multichannel and multilingual approach means that no matter what, your message will reach the individual or groups when it matters most. Automate communications, collaborate and orchestrate your incident resolution. Alert residents, travellers, and visitors, or users of any nature based on their proximity to risks or events. Without group limits or the ability to download assets being sent to name a few, Crises Control offers a secure and reliable group communication tool.

IT Services

IT Consulting Services

Social

VoIP

2016

View Profile

AlternativeSoft

London, United Kingdom (UK)

AlternativeSoft is an award-winning analytical software specialising in funds selection, portfolio construction, funds fact sheet, portfolio reporting, portfolio management with hedge funds and private equity funds and, finally, funds due diligence. It is the only tool on the market to combine funds due diligence and funds statistics. With over $1.5trn in client AuM, AlternativeSoft’s clients include some of the world’s largest pension funds, sovereign wealth funds, endowments, fund of funds and wealth managers.

Financial Services

VoIP

2005

View Profile

Arlo Training Management Software

London, United Kingdom (UK)

Less admin. More training. Manage course scheduling, registrations, payments, website, CRM, and reporting—all in one powerful and easy-to-use platform. Try for free now at https://www.arlo.co Offer the entire registration experience using Arlo. Create simple registration forms for free events, complex forms for conferences, and everything between. Accept payments, issue invoices, and manage transfers, cancellations, and refunds. Arlo manages all event information and resources: one place, online, and accessible wherever you are. Track tasks, record notes, send emails, print name labels, manage waiting lists, and more. Use Arlo’s flexible integration options to set your web designers free. Integrate Arlo with other business applications for seamless marketing and management. Easily manage online presentations, such as live webinars for sales and training, and self-paced e-learning. Manage information about existing clients in Arlo, and easily run campaigns to target potential customers. Arlo is a fully featured customer relationship management tool.

Software

Financial Services

VoIP

2007

View Profile

Wookify

London, United Kingdom (UK)

At Wookify, we're not your ordinary Software as a Service (SAAS) provider. We're here to redefine your experience with technology, putting you in the driver's seat right from the start. Our mission is clear: empower you, our cherished customers, with self-configurable solutions that grant you complete control. Currently, we're dedicated to delivering and supporting these innovative solutions: 📦 WookiPost: Streamline your parcel and mailroom management. Easily register, notify, and track incoming parcels, ensuring secure storage until they reach their intended recipients. 🔧 WookiFix: Simplify defect and maintenance reporting. With WookiFix, you can log issues with ease, notify affected parties, and closely monitor progress until the job is done. 📈 WookiCRM: Elevate your customer relationship management. Our platform consolidates inquiries from all your sales channels, promoting consistency and enhancing conversion rates. Our solutions are tailor-made for the multi-tenanted property industry, including: 🏡 Private Rented Sector 🏢 Build To Rent 🎓 Student Accommodation 🏨 Hotels & Resorts 🏢 Corporate & Shared Work Space 🚐 Caravan & Leisure Resorts But we're more than just software. We're passionate about assisting organizations through specialized consultancy services or contract builds. In today's ever-changing technological landscape, you don't need an army of specialists to drive meaningful change or digital transformation. At Wookify, we believe in agile, streamlined approaches that break down silos. We've witnessed the pitfalls of linear, layered project delivery, often leading to costly failures. We understand that successful transformation doesn't require hundreds of people; it's about embracing new technology strategies, reimagining operational models, and collaborating with agile experts who prioritize your best interests and empower your team through knowledge sharing. Join us on a journey to redefine what's possible in the world of technology!

IT Services

IT Consulting Services

VoIP

2021

View Profile

Medesk

London, United Kingdom (UK)

Medesk is cloud-based practice management software that makes working with patients and medical data easier for doctors, receptionists and practice managers. Medesk was founded by software developers born into doctors’ families, so we deeply understand doctors’ needs and the issues they face. Medesk is a team of avid digital health supporters who are passionate about solving complex problems and having the ability to influence the most vital sector for everyone who needs it. The amazing diversity in our team’s professional and cultural backgrounds forges a product of real value and service to clinics, practices and patients alike. We value consistency in service delivery and strive towards perfection in the user experience. As such, all of our regular updates are based on real feedback from thousands of our doctors, administrators, nurses and other healthcare practitioners who take care of patients every day. Ideas and passion are what drives businesses forwards. We at Medesk are powered by the same fuel and the same passion, and we want to share this with our clients.

Software

VoIP

2008

View Profile

PARiM Workforce Software

London, United Kingdom (UK)

PARiM is the leading professional staff management solution for hourly workers used by more than 230,000+ users. We offer three different self-service portals for management, staff, and clients. As well as free Android and iOS mobile applications. This detail-oriented approach gives our offering a breadth of features and speed that thousands of working professionals appreciate in their daily routines. The solution fills a gap in the HR market place where no solution exists that allows the interaction from your client companies. This is especially useful when your organisation provides human resources as part of your business offering. This unique feature allowing client access gives your organisation a unique selling point, improves customer relations, assists in winning more business and reduces costs associated with general HR planning and management. If your company supplies human resources to clients as a service then PARiM is for you. Typical PARiM users are: facilities management companies,security firms,contract cleaners, contract maintenance and the like.

Software

VoIP

2013

View Profile

Nativevideo - Salesforce AppExchange Partner

London, United Kingdom (UK)

Nativevideo solutions are built exclusively for companies using Salesforce. Nativevideo transforms how companies and their customers create and share content, information and data on Salesforce using video. We are the only video+audio+AI recording and browsing solution fully integrated and native to Salesforce. Nativevideo is the platform that powers our solutions. We support all teams with capturing video call recordings, with automated transcriptions, summaries, next steps and draft follow-up emails with Vinton, our meeting AI and notetaker native in Salesforce. With TalentV.ai we support Recruitment teams with video interviewing, integrating natively within all Salesforce-built ATS platforms. By adding video interviews to your hiring processes, we provide faster and more effective pre-screening and collaboration at scale. Servicevideo has a focus on Service and Field Service. We enable customers and field teams to record and submit video and audio content directly into cases, service appointments, work orders and other objects supporting their customer processes. Contact us today to see how we can help transform how your company and customers create and share content on Salesforce.

Software

VoIP

2019

View Profile

Customer Thermometer

Brighton, United Kingdom (UK)

Customer Thermometer is the only customer satisfaction survey customers can answer from their inbox, giving you industry-leading response rates. It is an easy and unique way to gather the thoughts of your customers. Write, create and send beautiful, branded emails in seconds. Your customers click directly from their email inbox. You track their responses in real time. You can also embed our icons into a range of popular software tools, to enable you to get real time feedback on any topic. Use us with Zendesk, ServiceNow, Kaseya, Desk.com, Intercom, Salesforce, ConnectWise, Outlook and many more. Customer Thermometer won the Queen's Award for Enterprise for International Trade in 2019, and won the Gold Stevie Award for Customer Service in the same year.

Business Information Systems

VoIP

Information and Communications Technology (ICT)

2010

View Profile

Dialerking Technology

London, United Kingdom (UK)

DialerKing focuses on simplifying customer management and everyday communication workflows for businesses and Contact Center teams. With our Custom CRM Solution, organizations can manage leads, customer information, activities, and follow-ups.

We provide capabilities ranging from CRM workflow management and dialing integration to reporting, customer activity tracking, and third-party connectivity. Our systems can connect smoothly with VICIdial and other business applications to create a more consistent working process.

Our team develops CRM solutions around your actual requirements. Whether you need lead management, sales workflows, customer support features, Custom CRM Module Integration, or CRM with VICIdial, we can design the system around your operational process.

With a global portfolio of more than 150 successful projects, we serve businesses across the USA, UK, Philippines, Germany, Canada, and other markets.

Please note: we do not provide VoIP routes, DIDs, servers, or rental-based dialers. Our focus is on building practical, scalable software and integration solutions for modern business operations.

Free Live Demo : https://demo.dialerking.com

IT Services

CRM

VoIP

2008

View Profile

Digital Exchange Ltd

Sheffield, United Kingdom (UK)

Based out of Sheffield, and established in 1995, Digital Exchange is a Managed Service Provider of all things Connectivity & Telecoms.

We believe in forming long term relationships with our customers and strive to be the best by delivering the very best service each day, every day.

We're passionate about technology and communication and want our customers to be able to use this to help with their own success in a fast-paced world.

We care about our customers and always commit to:

* Be friendly & personal

* Be open and honest

* Do what we say, when we say it

* Go the extra mile

* Deliver excellence & quality

* Support you into the future

Our products & services include:

* Voice & data network cabling – design, implementation and certification

* Hosted phone systems (VoIP) & support

* On-premise phone systems & support

* Connectivity – IP & voice connectivity for single or multi-site businesses

* Mobile - Voice & Data SIMs for Businesses

To discuss any service requirement or project drop us a line on 0114 220 3000.

Telecommunications

Internet Services

Video Conferencing

VoIP

Mobile Devices

1995

View Profile

Primo Dialler

Manchester, United Kingdom (UK)

Call Centre Technology The Primo Partnership is a leading telecommunications business whose focus is the supply of a full range of emerging Internet Protocol (IP) based products and services to businesses. Our voice and data product portfolio includes minutes, line rental, broadband, call centre dialer applications, telephone system installation and maintenance, and a full range of Hosted Cloud services. We bring together proven and scalable products that deliver improved service, reduce costs and increase operational efficiency for SME and corporate clients throughout the UK. Our team has a collective knowledge of over 20 years in the communication industry and are already well skilled in the new frontiers of telecommunications, from hosted dialers and Voip technology to voice broadcasting and mobile communication. With a rapidly expanding client base and reliable global presence, you can be sure The Primo Partnership is best placed to lead your organisation into cutting edge telephony.

Telecommunications

VoIP

2015

View Profile

B2B Wave

London, United Kingdom (UK)

B2B Wave is a user-friendly and powerful B2B eCommerce software for brands, wholesale distributors, and drop-shipping suppliers looking to branch out online. Our cloud-based platform lets you accept orders, create online product catalogs, add price lists, manage customers, set customer privacy groups, and manage your sales reps.

Software

VoIP

2016

View Profile

Powered Now

Newport, United Kingdom (UK)

Powered Now is a mobile app built for plumbers, builders, electricians and more. You can invoice your clients, create great looking quotes and estimates.

IT Services

IT Consulting Services

Social

VoIP

2011

View Profile

HaloITSM

Stowmarket, United Kingdom (UK)

HaloITSM is a flexible, all-inclusive ITSM (IT Service Management) solution. HaloITSM gives you the power to manage all IT support with powerful ITIL aligned out-of-the-box functionality. You can streamline and report on specific processes such as change and problem management. Tailored to your exact requirements, you can align IT to the business needs in an all-inclusive, unlimited IT Service Desk solution.

IT Services

IT Consulting Services

Social

VoIP

1994

View Profile

The Matrix org Foundation

London, United Kingdom (UK)

Matrix is an open protocol for decentralised, secure communications. The Matrix.org Foundation exists to act as a neutral custodian for Matrix and to nurture it as efficiently as possible as a single unfragmented standard, for the greater benefit of the whole ecosystem, not benefiting or privileging any single player or subset of players. We believe: • People should have full control over their own communication. • People should not be locked into centralised communication silos, but instead be free to pick who they choose to host their communication without limiting who they can reach. • The ability to converse securely and privately is a basic human right. • Communication should be available to everyone as a free and open, unencumbered, standard and global network.

Telecommunications

IoT Development

Software

Developer APIs

VoIP

Open Source

2014

View Profile

Klarytee

London, United Kingdom (UK)

Data centric security for the future of work

Computer Hardware

Cybersecurity

VoIP

Network Security

View Profile

List of VoIP companies in United Kingdom (UK)
Company Name	Location	Category	Employees	Website
VoIPstudio.com	London, United Kingdom (UK)	Media, Publishing and Communication +2 Media, Publishing and Communication, Public and Community, Information Technology	10-20	http://voipstudio.com
Glasscubes	London, United Kingdom (UK)	Information Technology Information Technology	10-20	http://www.glasscubes.com?utm_source=linkedin
Multiply Software	London, United Kingdom (UK)	Information Technology Information Technology	10-20	https://multiply.cloud/
Sign In Scheduling (formerly 10to8)	Milton, United Kingdom (UK)	Information Technology Information Technology	10-20	https://10to8.com
Greenlight Innovation Ltd	Dundee Technology Park, United Kingdom (UK)	Information Technology +2 Information Technology, Business Services, Public and Community	10-20	http://callcentresoftware.co.uk
Crises Control	London, United Kingdom (UK)	Information Technology +2 Information Technology, Business Services, Public and Community	20-30	http://www.crises-control.com/?utm_source=linkedin&utm_medium=page&utm_campaign=maindescription
AlternativeSoft	London, United Kingdom (UK)	Finance and Banking +1 Finance and Banking, Information Technology	50-100	http://www.alternativesoft.com
Arlo Training Management Software	London, United Kingdom (UK)	Information Technology +1 Information Technology, Finance and Banking	50-100	http://www.arlo.co
Wookify	London, United Kingdom (UK)	Information Technology +1 Information Technology, Business Services	2-10	http://www.wookify.com
Medesk	London, United Kingdom (UK)	Information Technology Information Technology	20-30	https://www.medesk.co.uk/
PARiM Workforce Software	London, United Kingdom (UK)	Information Technology Information Technology	20-30	https://parim.co
Nativevideo - Salesforce AppExchange Partner	London, United Kingdom (UK)	Information Technology Information Technology	2-10	https://www.nativevideo.co
Customer Thermometer	Brighton, United Kingdom (UK)	Information Technology Information Technology	10-20	https://www.customerthermometer.com
Dialerking Technology	London, United Kingdom (UK)	Information Technology Information Technology	30-50	https://dialerking.com/
Digital Exchange Ltd	Sheffield, United Kingdom (UK)	Media, Publishing and Communication +2 Media, Publishing and Communication, Information Technology, Electronics	10-20	http://www.thedigitalgroup.co.uk
Primo Dialler	Manchester, United Kingdom (UK)	Media, Publishing and Communication +1 Media, Publishing and Communication, Information Technology	20-30	http://primodialler.com
B2B Wave	London, United Kingdom (UK)	Information Technology Information Technology	2-10	https://www.b2bwave.com
Powered Now	Newport, United Kingdom (UK)	Information Technology +2 Information Technology, Business Services, Public and Community	20-30	http://www.powerednow.com
HaloITSM	Stowmarket, United Kingdom (UK)	Information Technology +2 Information Technology, Business Services, Public and Community	50-100	https://haloitsm.com/
The Matrix org Foundation	London, United Kingdom (UK)	Media, Publishing and Communication +1 Media, Publishing and Communication, Information Technology	10-20	https://www.matrix.org/
Klarytee	London, United Kingdom (UK)	Electronics +1 Electronics, Information Technology	2-10	http://www.klarytee.com

21/21 results

Frequently asked questions

Updated 23 October 2026

What is Enterprise League?

Enterprise League is a free business directory that helps buyers find the right company by sector and country. Every company has a profile showing what it does, what it offers and how to get in touch.

Is it free to list my company?

Yes, and it stays free: no card, no paid tier. Your profile appears in search results and category pages, can show up to 20 products and services, and lets buyers message you or ask for a quote.

How does verification work, and what does it cost?

Verifying your company is free. Confirm a code we email to an address at your company’s website, or send a company registration document for our team to check, and the verified badge appears on your profile. To show the badge in the directory and search results as well, take out a subscription: the first 14 days are free, and the price is on our pricing page.

Where does the company information come from?

Most profiles are built from public sources, such as official company registers. Claim your company’s profile to correct its details and add your own.

How do I claim or correct my company’s profile?

Open your company’s profile and choose Claim Profile. If you use an email address at your company’s website, a 6-digit code makes the profile yours at once; otherwise our team reviews your request, usually within a few days. Spotted a mistake on a company that isn’t yours? Tell us through our contact page.