British Growth Partnership Fund I
British Business Bank-backed growth fund investing institutional capital in innovative UK companies.
By 30 July 2026, British Growth Partnership Fund I had made four investments, including a $25m commitment to PhysicsX, putting pension-backed capital into UK growth companies.
Last refreshed: 26 October 2026 · Appears in 1 active topic
Timeline for British Growth Partnership Fund I
Mentioned in: British Business Bank writes £180m into six AI funds
UK Startups and InnovationMade its fourth investment since a £200m first close
UK Startups and Innovation: Pension cash goes into PhysicsX roundElliptic closes $120m crypto compliance round
UK Startups and InnovationBackground
British Growth Partnership Fund I is a UK-focused growth investment fund backed by the British Business Bank. It gives pension funds and other institutional investors access to companies in the Bank's venture capital pipeline. Its strategy centres on innovative technology and life-sciences businesses at the growth stage.
The fund uses a general-partner and limited-partner structure. BBB Investment Services Limited advises it, while Langham Hall acts as its regulated alternative investment fund manager. Its company investments build on the Bank's co-investment approach and are made on a long-term, commercial basis. The fund pools institutional commitments within one investment vehicle, connecting participating investors with the Bank's existing company pipeline and investment capability.
The fund puts pension capital to work
On 30 July 2026, British Growth Partnership Fund I made its fourth investment through the British Business Bank's $25m commitment to PhysicsX. Temasek led the financing, with M&G also participating. For the fund, this was another deployment of pooled institutional capital into a UK technology company.
The fund had reached a £200m first close on 1 April 2026, with Aegon UK, NatWest Cushon and M&G as partners. That April close established the capital base for its long-term, commercial investment strategy. The structure gives pension investors access to the Bank's venture pipeline through a managed fund.
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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Updated 26 October 2026. Editorial standards.