About us

Cleantech for UK is an initiative aimed at paving the way for a new generation of global cleantech champions in the UK. The founding coalition includes six members who are from accelerators, venture capital, growth investors and alternative asset platforms with combined funds of over £6 billion.

Founding members of the coalition are: Imperial College London's cleantech accelerator Undaunted, Clean Growth Fund, Kiko Ventures , Breakthrough Energy Ventures , Just Climate, Legal and General Capital. The work of the coalition will be facilitated by Cleantech for UK.

The initiative is supported by Bill Gates’ Breakthrough Energy and organised by Cleantech Group.


Sarah Mackintosh


Sarah is the Director leading the Cleantech for UK initiative, building up a coalition of cleantech and policy leaders to scale up sustainable innovation in the UK. Before joining Cleantech Group, Sarah spent 11 years working for the UK civil service, primarily in energy and innovation policy and legislation. She began her career as a research associate working on carbon capture and storage. Sarah has a degree in Environmental Science, a Ph.D. in Isotope Geochemistry and a Master’s in public policy.

Joel Boehme

Communications Officer

Joel supports Cleantech for UK as a Communications Officer. He manages the initiative’s online presence and supports with press outreach. He brings a depth of political experience from public affairs consulting and think-tank work, and has previously worked on other policy issues, such as combatting online disinformation. Joel graduated from Lund University and holds an executive diploma in Leadership, Organising and Action from the Harvard Kennedy School.

Initiated by

At Cleantech Group, we provide research, consulting and events to catalyse opportunities for sustainable growth powered by innovation. We bring clients access to the trends, companies and people shaping the future and the customized advice and support businesses need to engage external innovation.

The company was established in 2002 and is headquartered in San Francisco with people based in London, Paris, Boston and Brussels.

Supported by

Established in 2015 by Bill Gates and a coalition of private investors concerned about the impacts of accelerating climate change, Breakthrough Energy supports the innovations that will lead the world to net-zero emissions.

We are building on the proven model of public-private partnerships that Gates has already used to transform health, education, and public welfare around the world. Breakthrough Energy is a network of entities and initiatives, including investment funds, nonprofit and philanthropic programs, and policy efforts linked by a common commitment to scale the technologies we need to achieve a path to net zero emissions by 2050. We are encouraging the development of new net-zero energy technologies, championing policies that speed innovation from lab to market, and bringing together governments, research institutions, private companies, and investors to expand and enhance clean-energy investment.