About National Security Strategic Investment Fund Who we are The National Security Strategic Investment Fund (NSSIF, en-sif) is the Government’s corporate venture capital arm for dual-use advanced technologies. We are the Government’s centre of expertise for venture capital and dual-use national security and defence technologies. Our organisation draws together expertise from government, security and defence, and the worlds of technology and venture capital. Using our deep knowledge of these different fields, we’re bringing the businesses that are developing tomorrow’s technologies closer to buyers and innovators in national security and defence. Together, we identify and seize opportunities for HM Government to gain strategic advantages in technology and strengthen the UK’s deep-tech ecosystem. Learn more about NSSIF Discover what we invest in Find out how we invest Read investment stories National Security Strategic Investment Fund About NSSIF What we invest in How we invest Investment stories British Business Bank plc is a public limited company registered in England and Wales, registration number 08616013, registered office at Steel City House, West Street, Sheffield, S1 2GQ. It is a development bank wholly owned by HM Government. British Business Bank plc and its subsidiaries are not banking institutions and do not operate as such. They are not authorised or regulated by the Prudential Regulation Authority (PRA) or the Financial Conduct Authority (FCA). A complete legal structure chart for the group can be found at www.british-business-bank.co.uk © 2021 British Business Bank plc Accessibility Privacy Notice Cookie Policy Modern Slavery Act Statement Cookie Policy We use cookies to give you the best online experience. Strictly necessary cookies ensure that this website functions correctly. We also use optional cookies to remember your preferences and repeat visits so that we can improve your experience. You can find out more by reading our Cookie Policy, and you can manage and change your cookie preferences at any time. Reject Accept Cookies Settings