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10 November 202614 min read

AI Investors in the UK (2026): Who Is Backing Early-Stage Startups

Who is backing early-stage AI startups across the UK in 2026, from pre-seed SEIS funds to Series A, including AI specialists and the government's own fund.

The main investors backing early-stage AI startups in the UK in 2026 include SFC Capital, Haatch, Concept Ventures, Connect Ventures, Air Street Capital, Sure Valley Ventures, Osney Capital, Octopus Ventures and the UK Sovereign AI Fund, from pre-seed to Series A.

Researched and written by Zeeshan Ali at Platvix. Checked on 10 November 2026.

TL;DR

  • Who writes pre-seed cheques across the whole UK? SFC Capital and Haatch both run SEIS and EIS funds. SFC says more than half of its investments are made outside London, and Haatch says over 70% of its funds have gone to companies in the UK's nations and regions.
  • Is there an investor that only does AI? Air Street Capital says it invests exclusively in AI-first companies. Sure Valley Ventures calls itself AI venture capital and says it has been backing AI since 2017.
  • Where does the public money sit? Behind the fund managers and, since April 2026, in front of them too: the British Business Bank has committed to SFC Capital's, Haatch's and Osney Capital's funds, and the UK Sovereign AI Fund invests in AI startups directly.

Early-stage AI investors in the UK

SFC Capital

A pre-seed investor running an SEIS fund and an EIS follow-on fund, which says it backs more than 100 companies a year.

Haatch

A pre-seed and seed investor in B2B software, running SEIS and EIS funds alongside British Business Bank money.

Concept Ventures

A London pre-seed fund that aims to be in the first round a company raises.

Connect Ventures

A London-based pre-seed specialist investing across Europe, with a stated AI focus.

Air Street Capital

An AI-only firm, investing primarily at pre-seed and seed and also at later stages.

Sure Valley Ventures

An AI specialist writing first cheques at pre-seed and seed, with offices across the UK and Ireland.

Osney Capital

A fund investing only in UK cyber security, with AI companies across its portfolio.

Octopus Ventures

A generalist fund across pre-seed to Series A, now launching a second dedicated pre-seed vehicle.

UK Sovereign AI Fund

The government's own venture fund, which takes equity in British AI companies itself.

What the city guides show taken together

Three patterns come out of the 14 UK city and region guides that no single one of them can show.

The first is that regional fund managers often operate in several places at once, so a founder outside London meets the same houses in different cities. Mercia Ventures carries a card in both the Leeds and Yorkshire and North East guides, under two different fund names, and SFC Capital carries one in the North East guide alongside it. How many guides a firm appears in is not a measure of reach, though. It depends on which cities have guides, and London counts once, so a fund investing nationally from a London office can show up less often than a regional manager.

The second is that a national remit is invisible to a city test. An investor mandated to the whole UK, or to one sector across the whole UK, does not qualify for a city guide unless it also has a dated deal in that particular city, so the UK-wide layer only becomes visible on a page like this one. Sure Valley Ventures, Osney Capital and the UK Sovereign AI Fund all sit there.

The third is where the public money sits. The British Business Bank appears behind three of the nine investors above, through its Regional Angels Programme commitments to SFC Capital and Haatch and its Enterprise Capital Funds commitment to Osney Capital, and PXN Ventures put money into Crediflow AI through the Northern Powerhouse Investment Fund II. In each of those four cases the public money reaches founders through a manager. The UK Sovereign AI Fund works differently: the government launched it on 16 April 2026 and it takes equity in AI companies itself.

Also worth knowing

Mercia Ventures describes itself as UK venture capital backing ambitious founders at Series A and beyond, and it runs the equity side of the £140m East of England Investment Fund, launched by the British Business Bank and announced on 24 September 2026. Parkwalk Advisors backs university spinouts and co-launched the Northern Universities Venture Fund, an EIS fund for spinouts from the Universities of Leeds, Liverpool, Manchester and Sheffield, with Northern Gritstone in June 2025. It appears in two recent rounds as an existing investor: the £10m Series A behind adsilico, a University of Leeds spinout, reported on 27 October 2026, and a £4.8m extension to the Series C of Brainomix, an Oxford developer of AI imaging tools, reported on 24 February 2026. Playfair Capital says it invests at pre-seed across the UK and Europe, typically leading or co-leading with cheques of £100k to £1.5m. Episode 1 Ventures says it invests in B2B software companies raising a pre-seed or seed round and that its focus is on getting early-stage AI and infrastructure companies to a Series A. If you want the pattern in what these firms ask for rather than who they are, we read 41 UK fund websites for what UK early-stage investors say they want in 2026.

Other support across the UK

The British Business Bank's Regional Angels Programme commits money to funds run by other managers, and two of the investors above draw on it: SFC Capital and Haatch, whose post says the Bank and Haatch have co-invested in 208 companies. The Bank also launches regional funds that appointed managers deploy, such as the £140m East of England Investment Fund and the Northern Powerhouse Investment Fund II, which PXN Ventures used to lead Crediflow AI's round in November 2026. UKI2S, the UK Innovation and Science Seed Fund managed by Future Planet Capital, backs spinouts out of publicly funded research and led Optera's £3m round on 16 June 2026. For programmes that take you through a cohort rather than straight to a term sheet, see our guide to UK AI accelerators for early-stage founders.

FAQ

Which UK investor backs AI and nothing else?

Air Street Capital says it invests exclusively in AI-first companies, which it defines as companies where AI drives the product capability and the long-term value, and it says it invests primarily at pre-seed and seed. Sure Valley Ventures describes itself as AI venture capital, says it has been backing AI since 2017, and writes its first cheques at pre-seed and seed.

I am pre-revenue, or spinning out of a university. Is any of this for me?

SFC Capital and Haatch both run SEIS funds, which exist for companies at the point where there is little to show, and Haatch states a £335k pre-seed cheque. For spinouts, Sure Valley Ventures led the pre-seed round behind BeCertain, a spinout from the University of Surrey and King's College London, and Parkwalk Advisors and Northern Gritstone run the Northern Universities Venture Fund, an EIS fund covering the Universities of Leeds, Liverpool, Manchester and Sheffield. The funds tied to a single institution sit in the city guides linked below rather than here.

How were these investors chosen?

Each one has a dated investment in the UK in the last 24 months or a UK-wide remit, states that it invests at pre-seed, seed or Series A, has made a new investment in the last 18 months, and has a stated AI focus or a recent AI deal. Place here means the UK as a whole, so a national remit qualifies, which it does not in the city guides in this series: a Wales-wide remit never qualified a firm for the Cardiff guide. Two things are worth saying plainly about how that works out. Osney Capital states no AI focus of its own, so its AI test rests on the companies it holds rather than on anything it says, and it gives its own stage only as early-stage, with the pre-seed and seed wording coming from UKTN. The card says both. And angel syndicates are under-represented, because they usually join rounds rather than lead them, which is not evidence of a new position under the test used here. Far more firms pass than nine, so this is a judgement about what is useful to an early-stage AI founder rather than a complete list.

How do I find which UK investors fit my startup?

Platvix is an investment intelligence platform for founders. It helps you through your fundraising journey, from analysing your pitch deck to finding the right capital for your startup, including VC firms, angels, accelerators and grants.

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Tags

  • Investors
  • AI Startups
  • UK Fundraising
  • Pre-seed
  • venture-capital
  • SEIS

About the author

Zeeshan Ali, Co-Founder

Co-founder at Platvix, building an investment intelligence platform and the ecosystem around it so founders become investment-ready faster and VCs make stronger decisions. I focus on operations, partnerships, and community building, turning strategy into execution through programmes, processes, and founder support.