£180m Gets UK AI Startups Started, Who Pays to Keep Them Here?

Authored by Uche Ezuma, Technology Journalist

The UK is one of the world’s great originators of ideas, but why do so many of its most promising startups still have to look abroad for the capital to grow?

Between January 2022 and May 2026, UK university spinouts raised £6.3bn in growth-stage funding across 156 rounds. However, just 8p of every £1 came from rounds funded exclusively by UK investors. None of the 19 rounds worth more than £75m relied on UK capital alone, according to a July report by Bidwells and Beauhurst.

In what seems to be a bid to cut down the domestic funding deficit, the British Business Bank announced on 15 October that it has now committed £180m to six AI and deeptech venture funds, with more than £1bn raised collectively across those funds. The investment will definitely have some impact, but UK startups need more than just early investment. They need enough domestic capital if they are to scale without having to look abroad every time they need a bigger cheque. The pressing question remains: who will pay to keep them?

Where the Funding Ladder Breaks

The weak point in UK funding is usually not the first cheque. It is everything after Series A. Aviva Investors, a UK-based multinational insurance and financial services company describes the early-stage end of the market as reasonably well served by domestic capital, however, the gap usually sits in the later growth rounds where companies need larger cheques to expand and stay in the UK. A BVCA’s 2025 report counted more than 9,100 UK businesses backed by venture capital, but still identifies that the move from Series A to later-stage growth remains a challenge for many of them.

The conversion rate shows how hard. A report from Venture Path found that one in four seed-funded startups reached Series A in 2021, against one in 14 in its 2025 figures. In a brief to City AM, Ian Merricks, the Proposition Lead at Venture Path warned that without that progression, “we become a nation of micro businesses, lacking scale.” Companies that cannot raise at home rarely fail quietly. They take overseas money, move, sell or list abroad.

What £180m Can and Cannot Do

On its own, £180m cannot fill a gap measured in rounds of £75m and above. Looking into the funding proper, the British Business Bank’s largest single commitment, a £55m to Intrepid’s inaugural $525m fund, is smaller than the £75m line. The other five range from £20m to £35m, and each sits alongside money from other investors, with the six funds having raised more than £1bn between them.

The spread across the ladder is the design, and it cuts both ways. Some £103m, or 57%, sits in funds that invest from pre-seed to Series B, which addresses the broken step between seed and Series A as much as the later gap. The other £77m sits in two growth funds, Intrepid and Evantic, and that is where the £75m problem will be tested most directly.

The structure of these commitments carries a second tension. Crane invests globally, Headline across Europe and Evantic in globally focused companies, so the money is not ring-fenced for UK companies. That is not necessarily a weakness per se. In the British Business Bank’s announcement, Evantic founder Matt Miller said nine of the firm’s non-UK portfolio companies had opened London offices, which suggests foreign-led capital can still pull companies towards the UK as well as away from it. But the Bank is investing in these funds rather than running them, and it cannot dictate where a company ends up based. A new NatWest market review notes that domestic funds often lack the size to lead very large late-stage rounds, and this helps explain why overseas investors fill the biggest cheques.

“The UK has no shortage of ideas or talent,” said Leandros Kalisperas, chief investment officer at the British Business Bank.

Kalisperas said the weakness lies in a funding landscape that has not matched that strength, and that the Bank wants more of the economic value to remain in the UK. That aim is the right yardstick for this commitment, he added. The test is whether companies in these funds are still UK-based when they reach a £75m round.

The £1bn Test Behind the £180m

The more consequential number arrived in July. A consortium of major pension providers, including Railpen, Nest and several Local Government Pension Scheme pools, said it would explore a UK Scale-up Fund of more than £1bn for science and technology companies, with the Bank working alongside and intending to invest. That is more than five times the £180m, and it is aimed at the rounds where UK money has been scarce. In April, it emerged that the Bank was coordinating the British Growth Partnership Fund I, which had an initial close of £200m backed by three UK pension funds.

This October commitment by British Business Bank is the first piece of a longer build. The Bank anchors fund managers who can find and back companies, and pension money is meant to carry the best of them through larger rounds. Each needs the other.

Three things will show whether it works. The first is whether the growth funds in the Bank’s portfolio lead or co-lead rounds above £75m with UK money alongside. The second is whether the scale-up fund’s eligibility criteria reach AI software and hardware companies rather than only science spinouts. Sky News reported that M&G and Schroders are among the managers seeking to run it, and that the criteria had not been disclosed. The third is whether companies such as Salience Labs, a direct beneficiary of £10m investment from the British Business Bank earlier this month keep their headquarters and research in the UK through their next rounds.

Without a deep pool of domestic growth capital, the UK risks becoming a launchpad, rather than a home for high-growth businesses. The £180m build the launchpad. Whether Britain becomes a home for these companies will depend on the capital available as they grow.