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The latest funding rounds from the UK tech ecosystem. Updated 16 October 2026.
Announcements
217
Total raised
£2.8B
disclosed amounts
This month
£3.5M
raised so far
E.ON Energy Infrastructure Solutions led the Series B first close, supported by Barclays Sustainable Impact Capital.
"The first wave of investment of our Series B round is transformative for our journey and a great step in the wider movement to decarbonise heat."
Ascension led the oversubscribed seed round with backing from a syndicate of co-investors.
"Our ability to help homeowners access affordable energy via our Flexx platform and virtual power plant drives energy security and helps the UK get to a clean, green future. When we launched Heatio two years ago, our priority was to help more consumers access green technology and reduce the use of fossil fuels to decarbonise their homes. Through this investment, we are moving closer to making that a reality. We are looking forward to driving our expansion and working with industry leaders and would like to extend our appreciation to every investor for helping us get where we are today."
The Dubai private equity firm has backed the UK electric vehicle charging innovator as it expands its technology into defence and off-grid markets.
"Receiving the incredible support and pledged investment from Petra Equity Partners, which is renowned for backing cutting-edge technology innovators, is testament to our effort to radically rethink how to mobilise energy and solve the biggest challenge of electrification. Our collaboration will help accelerate the development and deployment of our charging technologies to transform mobility across the globe, including the defence sector where we believe we can support the evolving criteria of its sustainable and adaptable energy needs."
The London-based residential energy services company has raised debt financing from Barclays to widen access to domestic green technology.
"Many homeowners naturally want to invest in renewable technologies but are put off by the extraordinarily high upfront costs. That’s why we’re focused on removing barriers to help more households take control of their energy bills and carbon emissions. We’re delighted to be working with Barclays to help us develop and scale flexible finance solutions with all-inclusive cover built-in, to enable homeowners to make the switch to clean, green energy with confidence."
The funding round was led by Volta Energy Technologies with backing from CBMM, BGF, and Cambridge Enterprise Ventures.
"Our ambition is to deliver the best fast-charging batteries to unlock the electrification of heavy-duty vehicles. The investment from our partners Volta Energy Technologies, CBMM, BGF and Cambridge Enterprise Ventures cements our ambition to achieve full-scale commercialisation and full production volume."
