- Anne Thorne Architects: www.annethornearchitects.co.uk
- BioRegional Development Group: www.bioregional.com
- BPEC : www.bpec.org.uk
- Brighton and Hove Council: www.brighton-hove.gov.uk
- Bromley Council: www.bromley.gov.uk
- City Action: www.city-action.org
- City and Guilds: www.cityandguilds.com
- East Thames Housing Association: www.east-thames.co.uk
- Ecobuild: www.ecobuild.co.uk
- Ecomerchant: www.ecomerchant.co.uk
- Eight Associates: www.eightassociates.co.uk
- Eurban: www.eurban.co.uk
- Groundwork Trust Leicester: www.gwll.org.uk
- Groundwork Trust West London:
- Hackney City Farm: www.hackneycityfarm.co.uk
- Kent County Council: www.kent.gov.uk
- London Sustainability Exchange: www.lsx.org.uk
- National Green Specification: www.greenspec.co.uk
- Second Nature: www.secondnatureuk.com
- UNLtd: www.unltd.org.uk
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