National Security Strategic Investment Fund (NSSIF)

🇬🇧 UK-active

Seed VC·London, United Kingdom·Partner: Andy Bamford (Managing Partner, NSSIF)·writes lead cheques

Invests at seed in ai-ml, cybersecurity, b2b-saas. 2 rounds tracked.

Cheque range (GBP)

£1.1M – £3.3M

Last cheque

2mo ago

● actively deploying

Rounds (12mo)

1 in last 90d

Tracked portfolio

since 2026

Recent investments

2 tracked rounds via funding databases

Company	Stage	Amount	When
Refute ↗ AI-powered platform to detect and respond to disinformation and hybrid threats	Seed	£5M	6mo ago
Optalysys ↗ Develops photonic computing technology for high-performance, energy-efficient processing in AI an...	Series A+	£23M	6mo ago

Stages backed

Series A+1 · 50%

Seed1 · 50%

Markets backed

AI/ML×2 Cybersecurity×2 Enterprise×2 Photonic Computing×1 Blockchain×1

Sectors & focus

AI / ML Cybersecurity B2B SaaS AI Machine Learning SaaS Enterprise DeepTech

Business models

AI / ML

Other portfolio companies

2 from public sources

Optalysys LtdRefute Ltd

Frequent co-investors

From tracked deal data

imec.xpand Lingotto Horizon Northern Gritstone Amadeus Capital Partners Episode 1 Osney Capital Playfair

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