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The latest funding rounds from the UK tech ecosystem. Updated 16 October 2026.

Announcements

340

Total raised

£3.4B

disclosed amounts

This month

£10.4M

raised so far

Series B
$46.0M

The round was led by 2150 and Energy Impact Partners alongside Legal & General Capital.

"This funding round and acquisition of BeWarm marks a significant new chapter for Hometree, enabling us to deliver on our long-held vision of building the leading residential energy efficiency platform across Europe. The recent energy crisis has shown that we can’t remain reliant on foreign gas to heat and power our homes, and Hometree has a key role to play in helping homeowners transition to a more safe, stable and affordable energy system."
— Simon Phelan, CEO
Series A
£1.5M

The climate tech company added backing from Bayes Entrepreneurship Fund, One Planet Capital and Cell Capital to complete a £4.1m total Series A round.

"Impact is at the core of what we do at AirEx: to help the decarbonisation of homes and eliminate Fuel Poverty. With the help of this investment and business support we are well positioned to execute our vision – to become a ‘no brainer’ solution for social landlords and homeowners looking to reduce energy consumption in a non-disruptive way. We are truly excited to have the support of such like-minded, mission driven investors."
— Agnes Czako, Co-Founder and CEO
Seed
£4.5M

Gresham House Ventures led the seed financing for the London environmental data firm.

"Decarbonisation initiatives in the financial sector are growing rapidly which is why we need to further scale our product offering to help financial institutions measure and reduce the emissions of their customers,"
— Alexander Lempka, Co-Founder and CEO
Other
£9.2M

The Oxford spinout secured £9.2m from new and existing backers to scale its smart hot water technology.

"Mixergy is launching a new integrated heat pump cylinder in the Spring, which uses our top-down heating technology, with a small heat pump attached to the cylinder. It will heat water 10x faster than conventional integrated heat pump cylinders (usable hot water in under 30 min), and connect to the grid."
— Pete Armstrong, CEO and co-founder
Series B
£20.0M

The Worcestershire-based smart energy technology company secured the financing to expand its customer base and accelerate product development.

"Indra’s core mission is to make energy smarter to help enable the road to Net Zero. This additional investment shows the depth of confidence in our ground-breaking technology as we continue to push boundaries and unlock the potential of EVs as portable energy sources for a sustainable, greener energy ecosystem."
— Adrian Moores