British Business Bank

British Business Bank accounts for 9 tracked companies with verified cap-table data, 9 of which disclose round sizes totalling $2.2B. The median disclosed raise is $175M, and the largest is Thought Machine at $636M, ahead of MarketFinance ($536M) and Quantum Motion ($251M).

The names that recur most often on these co-invested cap tables are British Business Bank (9 companies), Molten Ventures (2 companies), British Patient Capital (2 companies), ING Ventures (1 company), Lloyds Banking Group (1 company), Standard Chartered Private Equity (1 company). By latest disclosed round, the market skews Series B (3), Series C (2), Series A (2), Series D (1).

• Companies tracked: 9
• Disclosed funding total: $2.2B across 9 companies
• Median disclosed raise: $175M
• Largest raise: Thought Machine — $636M
• Stage mix: Series B 3 · Series C 2 · Series A 2 · Series D 1
• Most recent dated round: 2026-07-06

Best funded British Business Bank companies

1. Thought Machine — $636M (latest: Series D)
2. MarketFinance — $536M (latest: Debt financing)
3. Quantum Motion — $251M (latest: Series C)
4. PolyAI — $206M (latest: Series B)
5. Kraken Technology Group — $175M (latest: Series B)
6. IMU Biosciences — $166M (latest: Series A)
7. Nuclera — $145M (latest: Series C)
8. NRG Therapeutics — $86M (latest: Series B)
9. EpilepsyGTx — $43M (latest: Series A)

British Business Bank — related firms and companies (52)

• Thought Machine
• MarketFinance
• Quantum Motion
• PolyAI
• Kraken Technology Group
• IMU Biosciences
• Nuclera
• NRG Therapeutics
• EpilepsyGTx
• British Business Bank portfolio companies 2026
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British Business Bank alternatives · All research reports