# National Security Strategic Investment Fund

> National Security Strategic Investment Fund is a VC fund backing Information Technology. See 20 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Sheffield, United Kingdom
- Total investments: 20
- Last investment: Jul 2026
- Lead investor: 5%
- Last updated: Aug 2026
- Website: https://www.british-business-bank.co.uk/national-security-strategic-investment-fund/

National Security Strategic Investment Fund is a VC fund in Sheffield focused on Information Technology and Aerospace. The National Security Strategic Investment Fund is the British Government’s corporate venturing arm for dual-use advanced technologies. It is a joint initiative between HM Government and the British Business Bank.NSSIF invests commercially in advanced technology firms, alongside other investors, supporting long-term equity investment – ‘patientcapital’ – and harnesses the Government’s unique technology expertise. Its objectives include accelerating the adoption of HMG’s future national security and defense capabilities and the development of the UK’s dual-use technology ecosystem.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Information Technology | 6 | 30% |
| Aerospace | 5 | 25% |
| Quantum Computing | 5 | 25% |
| Hardware | 4 | 20% |
| Software | 3 | 15% |

29 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 6 | 30% |
| Series B | 5 | 25% |
| Seed | 3 | 15% |
| Venture - Series Unknown | 3 | 15% |
| Pre-Seed | 1 | 5% |

7 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United Kingdom | 14 | 70% |
| Canada | 1 | 5% |
| Finland | 1 | 5% |
| Portugal | 1 | 5% |
| United States | 1 | 5% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Greenjets | Greenjets was founded in 2019 and was incubated within Blue Bear Systems Research. It spun-out of Blue Bear in December 2022. | $40.3M | Series A | Jul 17, 2026 |  |
| Kraken Technology Group | Kraken Technology Group is a maritime-technology company that designs and builds high-performance platforms for both civilian and defence use. Their services include composite modular manufacturing, powertrain development, and systems integration, often with autonomous capabilities. They also conduct research into advanced materials and structuraltechnologies for marine vessels. Kraken’s engineering team draws on experience from motorsport, defence, and naval operations to deliver scalable and versatile maritime solutions. | $174.5M | Series B | Jul 09, 2026 |  |
| Archangel Lightworks | Archangel Lightworks is a laser communications company that builds secure, wireless technology to create the space-enabled networks of the future. They solve the space-ground connectivity problem. They offer an opportunity for resilient connectivity, and the ground is reliant on radio, which is bandwidth-constrained, finite, and not secure. | $13.4M | Series A | Apr 13, 2026 |  |
| Mutable Tactics | Mutable Tactics focuses on developing AI-powered autonomous mission systems for unmanned aerial vehicles (UAVs). The technology enables real-time decision-making and coordination in defense operations, improving operational efficiency. It enhances capabilities in intelligence, surveillance, and reconnaissance (ISR), navigation in GPS-deniedenvironments, and counter-drone operations. | $2.1M | Pre-Seed | Mar 04, 2026 |  |
| Refute | Refute identifies and addresses misinformation on behalf of there businesses. | $6.8M | Seed | Feb 03, 2026 |  |
| Optalysys | Optalysys solves the fundamental limitations of conventional computing. Optalysys develops optical AI systems that accelerate the demanding deep learning and pattern recognition tasks at groundbreaking speeds but at a fraction of the energy consumption of traditional computing hardware.Optalysys' embeddable technology will enablesupercomputing capability in Edge and mobile devices. | $30.9M | Series A | Jan 22, 2026 |  |
| Sofant Technologies | Sofant is developing a low cost RF MEMS technology that solves power consumption and heat problems in high frequency phased array antenna systems. | $8.4M | Venture - Series Unknown | Dec 23, 2025 |  |
| Nu Quantum | Nu Quantum is a telecommunications company that develops end-to-end quantum cryptography systems.It secures communications within and between cities through urban and satellite free-space optical links. The system helps with the realization of commercial deliverable photonic technologies by combining novel materials and semiconductor technology.This enables clients to secure the exchange of cryptographic keys for the ultra-sensitive detection of light.Yuri Andersson, Mete Atatüre, and Carmen Berraquero founded Nu Quantum in Cambridge, Cambridgeshire in 2018. | $71.1M | Series A | Dec 10, 2025 |  |
| Delta g | Delta g is a gravity sensing hardware and technology development company that has developed a cutting-edge underground imaging system that leverages quantum technology. It is a spinout from the University of Birmingham. | $6.2M | Seed | Sep 26, 2025 |  |
| Space Forge | Space Forge make super materials in space that cannot be made on earth. | $30M | Series A | May 14, 2025 |  |

10 of 20 investments shown.

## Co-investors
- [Amadeus Capital Partners](https://shizune.co/investors/profile/amadeus-capital-partners) — VC Fund, 7 deals together
- [NATO Innovation Fund](https://shizune.co/investors/profile/nato-innovation-fund) — VC Fund, 5 deals together
- [IQ Capital](https://shizune.co/investors/profile/iq-capital-partners) — VC Fund, 4 deals together
- [Seraphim Space](https://shizune.co/investors/profile/seraphim-capital) — VC Fund, 4 deals together
- [Parkwalk Advisors](https://shizune.co/investors/profile/parkwalk-advisors) — VC Fund, 3 deals together
- [Altair](https://shizune.co/investors/profile/altair-engineering) — VC Fund, 2 deals together

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## FAQ

### What does National Security Strategic Investment Fund invest in?

National Security Strategic Investment Fund invests primarily in Information Technology, Aerospace and Quantum Computing startups, most often at Series A and Series B stage. Most of the 20 investments tracked by Shizune back companies in United Kingdom. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did National Security Strategic Investment Fund last invest?

The most recent investment recorded for National Security Strategic Investment Fund closed in Jul 2026. Shizune tracks 20 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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