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UK Startups and Innovation
24JUN

Private money rebuilds Britain's seed tier

2 min read
09:33UTC

Seedcamp closed its largest-ever fund at $320m on 22 June, with the British Business Bank inside it as a 10m-pound junior LP rather than the architect. CuspAI is raising $400m at a $2.6bn valuation on Bezos money, Conduct took $60m from US strategic capital, and the government's actual fortnight move was research labs, not seed cheques. The pipeline is being rebuilt by private and foreign hands.

Key takeaway

Private and foreign capital rebuilt Britain's seed tier while the state took junior LP stakes.

This briefing mapped
Economic
Regulatory
Domestic

Seedcamp raised $320m on 22 June, double its 2023 fund, and the British Business Bank sits inside it as a £10m junior LP rather than the writer of the seed cheque itself.

Sources profile:This story draws on neutral-leaning sources

Seedcamp closed a record $320m fund on 22 June, doubling its 2023 raise. The British Business Bank invested £10m as a minority partner alongside HarbourVest, Schroders and founder-angels.

April's Venture Capital Trust tax cut reduced the retail money available to back early startups. Rather than build its own seed instrument, the state bought a junior stake in Seedcamp's private fund. HarbourVest and Schroders are the co-LPs writing the same cheque. 

CuspAI, a 2024 Cambridge AI-materials company, has signed term sheets for a reported $400m round at a $2.6bn valuation with Bezos Expeditions among the backers. The round is not yet closed.

Sources profile:This story draws on neutral-leaning sources

CuspAI, a Cambridge startup, is reportedly raising $400m at a $2.6bn valuation. Bezos Expeditions and Kleiner Perkins have signed term sheets. The round has not yet closed.

Customers include Meta, Hyundai, and Kemira, which uses the platform to find materials that remove forever chemicals from water. CuspAI would be worth more than four times its September 2025 valuation if the deal completes. 

Conduct, founded by three ex-Palantir engineers, raised a $60m Series A on 17 June co-led by Index Ventures and ICONIQ, with SAP investing strategically and embedding the product in its own software.

Sources profile:This story draws on neutral-leaning sources

Conduct, a London startup, raised $60m on 17 June 2026. Enterprise-software firm SAP (Systems, Applications and Products) invested and embedded Conduct inside its own products.

SAP ends support for its legacy platform in 2027. Roughly half its 35,000 customers have not yet migrated. Conduct automates that process, so SAP backed a tool it would otherwise compete against. 

Sources:Sifted·UKRI

EPSRC launched two AI research labs on 23 June and doubled the programme behind them to £60m, funding open-source AI that runs on ordinary chips rather than the frontier hardware the rest of government is buying.

Sources profile:This story draws on neutral-leaning sources

The UK's engineering research council launched two AI labs on 23 June 2026 and doubled its AI programme to £60m. One is at University College London; the other is at Oxford.

Both labs build AI that runs on ordinary, affordable chips. That quietly contradicts the government's separate £1.1bn plan to buy expensive frontier hardware. 

Innovate UK committed £27m to offshore-wind innovation on 16 June, anchored by a £12m shared testing centre on the Isle of Wight with Denmark's Vestas as its first industry partner.

Sources profile:This story draws on neutral-leaning sources

Innovate UK committed £27m to offshore-wind innovation on 16 June 2026. The largest piece is £12m for a large-structures testing centre on the Isle of Wight. Danish turbine maker Vestas signed on first.

UK manufacturers cannot certify the longest modern turbine blades without a domestic test facility. This centre gives them that route, though a foreign firm anchoring it complicates the supply-chain goal. 

Sources:UKRI

Neubond, an Imperial College London spinout building a stroke-rehab wristband, raised a £1.5m seed in June, the first UK investment by a Japanese university venture fund.

Sources profile:This story draws on neutral-leaning sources

Neubond, an Imperial College London spinout, raised £1.5m in June 2026 from a Japanese university venture fund. It was that fund's first ever UK investment.

Neubond's wristband delivers small electrical pulses to help stroke patients relearn movement. Academic capital from Japan reaching a UK seed stage is a channel that has not appeared on this beat before. 

Sources:UKRI

The AION collaboration, led by Imperial's Oliver Buchmueller with Oxford, published an atom-interferometry milestone in Nature on 17 June, proving the technique before committing to a full-scale detector.

Sources profile:This story draws on neutral-leaning sources

A UK quantum-sensing team, led by Imperial College London and Oxford, published a milestone in Nature on 17 June 2026. Two atom-based detectors run side by side, cancelling noise so only genuine signals survive.

The result clears the path to build a full-scale detector at Oxford. It is fundamental Science rather than a product, but the hardware it needs feeds the UK quantum supply chain. 

Sources:UKRI

BBSRC invested £10m across 21 new Fellows on 18 June, reaching at least six institutions outside London, the upstream end of the spinout pipeline rather than its funded exit.

Sources profile:This story draws on neutral-leaning sources

The UK's Biotechnology and Biological Sciences Research Council invested £10m across 21 new research Fellows on 18 June 2026. At least six are based outside London.

At roughly £476,000 each, this is the cheapest capital in the briefing. Fellows who produce breakthrough Science today are the likely startup founders of the 2030s. 

Sources:Dealroom
Closing comments

Sideways to gradually up. Capital volume is rising (Dealroom puts the UK at ~40% of European VC in 2026) but the barbell is widening: more foreign-led mega-rounds at the top, thinner domestic retail at the seed tier. The specific trigger to watch is whether the BBB builds a direct public seed instrument (open programme, not fund-of-fund LP) to replace the VCT money, or continues deploying as a minority LP in private managers. If CuspAI closes at $2.6bn and the BBB is absent from the cap table again, the foreign-capital-leads-growth pattern will have become entrenched across three consecutive major rounds (PhysicsX, CuspAI, Orbital Industries).

AI-assisted, human-edited under the editorial responsibility of Bannermedia Ltd. Reviewed by Ed Woodcock on 24 June 2026. Editorial standards.

Different Perspectives
British Business Bank / UK Government
British Business Bank / UK Government
The BBB committed £10m as a Seedcamp LP, cornerstoned Longwall Fund 4 with £50m in May, and co-invested in OQC and IMU Biosciences under its new £6.6bn April 2026 mandate. It leads none of the marquee rounds and has not announced a direct seed instrument to replace the retail money the VCT cut removed.
US growth investors (Bezos Expeditions, Kleiner Perkins, ICONIQ)
US growth investors (Bezos Expeditions, Kleiner Perkins, ICONIQ)
American capital is entering UK deeptech at scale in June 2026, underwriting the growth stages that domestic institutions are not reaching: Bezos and Kleiner Perkins in CuspAI's reported $400m, ICONIQ co-leading Conduct's $60m alongside Index Ventures. The pattern reserves seed economics for UK vehicles while US investors capture the upside of the fastest-growing companies.
SAP (Germany)
SAP (Germany)
SAP invested strategically in Conduct and embedded the product inside its own software, a defensive hedge against its own 31 December 2027 ECC mainstream-support deadline with roughly 17,000 of its 35,000 ECC customers still un-migrated. Owning a stake in the agentic migration tool is cheaper than watching a rival sell it to the same customer list.
Japanese academic venture capital (Neubond LP)
Japanese academic venture capital (Neubond LP)
A Japanese university venture fund made its first UK seed investment in Neubond's £1.5m round, drawn to an Imperial spinout with prior Innovate UK and ERC support. The deal opens a channel of academic capital from Japan into the earliest stage of the UK spinout pipeline, where domestic retail funding has thinned.
Vestas (Denmark)
Vestas (Denmark)
The Danish turbine maker signed as the first industry partner for blade innovation at Innovate UK's £12m Large Structures Innovation Centre on the Isle of Wight, giving it early access to open-access composite testing infrastructure it cannot build alone. The commitment is strategic: offshore blade manufacturing depends on large-structure testing capacity that currently has no UK open-access equivalent.
UK founders at the seed stage
UK founders at the seed stage
Founders raising first cheques in mid-2026 find the retail tier thinner: 2,455 fewer EIS angels in 2024/25 before the VCT cut compounds the decline. Seedcamp's $320m and Longwall's £100m address the gap but via private managers with selective entry, not open programmes, so the improvement is real but uneven.