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 – ‘patient capital’ – 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.