Carbon Trust Green Business Directory

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Carbon Trust Accredited Suppliers have met or exceeded criteria set by the Carbon Trust designed to examine their capability to deliver thoughtful, well-designed energy efficient and renewable energy systems. As part of the assessment process, the Carbon Trust takes into consideration feedback from client references regarding the suppliers’ performance. Whilst the Carbon Trust has endeavored to confirm that all suppliers included in the Green Business Directory are of a proven high quality, users of the Green Business Directory enter into contracts directly with Accredited Suppliers to the exclusion of the Carbon Trust, and at their own risk. The Carbon Trust makes no representations regarding, nor does it accept any liability whatsoever in respect of, the performance of any services or the supply of any goods by Accredited Suppliers. Case studies have been written and supplied by Accredited Suppliers. Details should be independently reviewed by prospective customers.

64 suppliers found

The Efficient Energy Co.

TEEC design & install renewable & efficient energy technologies, specialising in biomass & solar PV. With no exclusivity to any one manufacturer or supplier we select from the whole market to create your complete, unbiased & tailored system. With biomass from 24kW-1MW & Solar PV; on ground mounted to even asbestos roofs. Read case study

PHONE: 0778 606 3656

Mi Generation Ltd

Mi-Generation brings a unique approach to the heating market; installing and servicing biomass boilers that run off wood pellets made from locally sourced clean wood waste, supplied through a heat agreement. Read case study

PHONE: 01209 204340


Our energy management software and smart metering technology provides a real time, flexible energy management solution. Based in Oxford we design and manufacture our own range of smart-meters, software and end-to-end aM&T solutions. Our meters and monitors lead the way in Energy Management Solutions: Automatic Monitoring & Targeting and Measurement & Verification. Read case study

PHONE: 0844 875 1600

Allied Lighting Limited

Allied is a forward thinking lighting company pioneering the use of LED lighting in commercial, public and residential sectors. We offer a wide range of luminaires that are manufactured to our own demanding specifications and high standards. We also have in house lighting engineers that can help with specification and advice on all sized projects. Read case study

PHONE: +44(0)1772 883876

The Energy Solutions Group

The Energy Solutions Group is one of the UK`s leading providers of total energy management solutions. They combine technical energy management skills, allied to a proven track record in the installation, maintenance and support of energy management systems. Read case study

PHONE: +44(0)161 927 3450

Carillion Breathe Limited

Carillion provides complete turnkey energy and carbon reduction solutions to our clients, using the latest technologies and innovations. Our process includes an initial review of consumption data, benchmarking, initial survey and options appraisal to the business case preparation, detailed design, works / solution delivery and verification process. Read case study

PHONE: +44(0)208 326 0882

Carbon Trust Accredited Supplier

Who are Carbon Trust Accredited Suppliers?

The Carbon Trust Accredited Supplier scheme is the market-leading scheme for high quality energy efficient equipment and renewable technology suppliers. It provides independent validation and recognition of a supplier's skills and services - a much needed and trusted quality standard in a crowded and fast growing market place. Accredited Suppliers must meet or exceed criteria set by the Carbon Trust designed to examine their capability to deliver thoughtful, well-designed energy efficient and renewable energy systems. Only Carbon Trust Accredited Suppliers are included in the Green Business Directory.

Looking for a supplier for your project?

Read more about Carbon Trust Implementation and finance support for energy efficiency and renewable energy technologies.

Suppliers and contractors

Find out more about how you can apply for the Accredited Supplier scheme and listing in the Green Business Directory.


Carbon Trust Accredited Supplier Map

View locations of Accredited Suppliers in the map below: