- British Photovoltaic Association - UK trade association
- Bimble Solar - off-grid specialists
- Cambridge Solar - award-winning solar installer
- Capture Energy - wind energy specialists
- Ecohisolar - solar thermal systems
- Ecotricity - renewable energy suppliers
- EDC - solar panel & wind turbine specialists in the UK
- Electric boat association - peace and tranquillity on the waterways
- Electricity Info - independent environmental information on UK electricity
- Energy4All - community and co-operative ownership of renewable energy
- Exeo Energy - Oxford-based solar installer
- Firefly Solar - portable solar generator design, hire & sales
- Good Energy - renewable energy suppliers
- Home Power Magazine - affordable residential renewables
- Intelligent Energy Solutions - renewable energy specialists
- John Cantor Heat Pumps - heat pump specialists
- Microgeneration Certification Scheme - quality assurance scheme
- PV GIS - free online tool for PV system sizing and interactive map
- Renewable Energy Centre - directory of renewable technologies
- Solar Trade Association - promoting the solar thermal industry
- Solar Century - solar energy company
- Suntrader - solar thermal & photovoltaics
- Wind & Sun - system design, supply and installation