We are
Sustainable
Energy
First
Creating sustainable energy opportunities
for the UK’s most prominent organisations
About us
Our Purpose
To inspire and empower our people to make a positive difference for themselves, our clients and the planet.Our Values
Responsible
Imaginative
Together
The big numbers
Our energy consultants are working hard to slash business carbon emissions
327,170
CO2e
We have committed to decarbonising the UK’s business carbon footprint by 327,170 tonnes of CO2e by 2028
CO2e
We estimate that our current customer base comprises 3.3% of the total UK business CO2e footprint
Sustainability ecosystem
Our sustainability ecosystem puts our clients, people and technology at the heart of every project we do – from enriching data that uncovers decarbonisation projects to securing renewable energy for financial forecasting stability.
Powered by one team
470+ sustainability changemakers dedicated to one shared goal – making a positive difference for themselves, our clients and the planet.
Working together for a sustainable future
Proud to support the best of British business with their energy and carbon challenges.
Our addiction to fossil fuels is pushing humanity to the brink. We face a stark choice: Either we stop it — or it stops us. It’s time to say: enough. Enough of brutalizing biodiversity. Enough of killing ourselves with carbon. Enough of treating nature like a toilet. Enough of burning and drilling and mining our way deeper.
Antonio Guterres
UN Secretary-General, COP26
Energy: Inform | Educate | Inspire
- What’s happening with the non-domestic Minimum Energy Efficiency Standards? 11 November 2025
- COP 30: your 5-minute guide 10 November 2025
- UK government to cut electricity costs by £420m a year for energy-intensive firms 31 October 2025
- What are non-commodity charges and why do businesses have to pay them? 29 October 2025
5 monthly must-knows in net zero, carbon, and energy news. Curated by Sustainable Energy First and The Energy Advice Hub