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National Security Strategic Investment Fund (NSSIF)

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The UK government's deep tech venture fund for national security and defence, investing in dual-use start-ups

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About National Security Strategic Investment Fund (NSSIF)

National Security Strategic Investment Fund (NSSIF) invests in the UK and allied countries as a public programme. It is the UK government’s deep tech venture fund for national security and defence, and it invests in start-ups building dual-use technologies.

What National Security Strategic Investment Fund (NSSIF) offers

  • Direct investment: minority equity stakes, usually from seed to Series A and into early growth, in dual-use start-ups.
  • Fund-of-funds investment: stakes in venture capital funds whose strategy fits its goals, run in partnership with the British Business Bank.
  • Government routes to market: help for start-ups to trial and deploy technology with government customers.
  • Market insight: analysis of emerging technologies and market dynamics across national security and defence.

Who it serves

Start-ups building dual-use technologies with strategic relevance to national security and defence, and venture capital funds aligned with its strategy.

Key facts

  • Based in: UK
  • Backing: the UK government
  • Structure: equity-only positions, taken through syndicated rounds

Profile written by TrustList from the business's own published information, Oct 2026.

Categories & features

Trust Score

4/ 100
Trust Score: New

An earned signal from verification, reviews, awards, transparency and engagement - the vendor can't buy it.

Verification
0/100 · 20%
Reviews
0/100 · 30%
Awards
0/100 · 15%
Transparency
18/100 · 20%
Engagement
0/100 · 15%
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Updated 9/17/2026

Rankings

As of 2026-10-11. Organic ranks only; sponsored placements are never ranks.

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