The National Security Strategic Investment Fund

The National Security Strategic Investment Fund (NSSIF) supports long-term equity – ‘patient capital’ – investment in advanced technologies which contribute to the UK Government’s national security mission.

Applications to manage an NSSIF Programme investment will be assessed under two separate areas:

  1. Eligibility for funding – applicants must be eligible under either the British Business Bank’s Enterprise Capital Funds programme or the British Patient Capital programme
  2. National Security Interface Centre (NSIC) accreditation – this will include evidencing or undergoing security vetting acceptable to UK authorities and demonstrating significant technical credentials in areas identified by HM Government as technology priorities

As well as fulfilling requirements in these areas, applicants will also need to demonstrate strong alignment with the NSSIF Programme’s objectives and requirements, in particular through their proposed investment strategy and technical expertise in investing in dual-use advanced technologies.

The full process for applications is set out in the NSSIF guidance document. The NSSIF guidance document should be read in conjunction with the ECF Guidance Document or the BPC Request for Proposals, as applicable.

It is expected that applicants selected under the NSSIF Programme will follow an investment strategy that contains a significant element focused on HM Government’s National Security Strategic Technology Areas of Interest.

Prospective applicants are invited to make initial contact with the British Business Bank at