- ABP Langport
- AiDASH
- AstraZeneca
- Aviva
- B & Q Limited
- BAM UK & Ireland
- BSI
- Carbon Neutral Group
- Cartus Limited
- CBRE
- CBRE London
- Correla LTD
- Creatio
- Devon County Council
- ECD Architects
- EDF Energy
- Enviromena
- Environmental Products and Services Ltd
- Express Merchants
- GeoPura
- Glenman Corporation
- Go North West
- Greenhouse Communications
- Hemsley Fraser Ltd
- Imperial Enterprise Lab
- Inspired
- InstaVolt Ltd
- Institute of Sustainability and Environmental Professionals
- Keepmoat Homes Limited
- KINTO Join Limited
- KPMG
- Leeds City College The Vine
- Leo Workwear
- London Cable Car
- MEP Concepts Ltd
- Newham College Group
- Orbiventure
- Pure Data Centres Group (Pure DC)
- Reconomy
- Safetykleen
- Saxon Air
- Shabra Group
- Siemens Energy
- SIMCo
- Simply Sustainable
- Solus Ceramics Limited
- St Austell Brewery
- Syntegra Group / Gravitas Property Group
- Transport for London
- University of Manchester
- Winvic
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