Twenty One Engineering

Twenty One Engineering is a leading energy and engineering consultancy based in London, specializing in Net Zero Audits and supporting businesses in achieving significant reductions in energy intensity. With a decade of experience working with major UK REITs – including delivering over 50% energy intensity reductions in some properties – we provide expert technical knowledge and support to a wide range of clients. Our services encompass ISO14001 and ISO50001 compliance, electrical and lighting assessments, and comprehensive energy management solutions. We help organisations across the UK meet their sustainability goals and optimise building performance.