NSI provides all the electrical products you need, from cable fittings and connectivity options to network infrastructure solutions and essential supplies.

NS&I offers you 100% secure savings and investments, backed by HM Treasury. Premium Bonds, ISAs and savings accounts. Start saving today.

Choose our certified reference materials (CRMs) to monitor analytical performance of your wastewater testing with full confidence. ACCELERATE INNOVATION WITH CUSTOM …

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We’re the only provider that secures 100% of your savings, however much you invest. We're backed by HM Treasury and we've been helping people save for over 160 years. Today, over 24 million customers save with us. We created Premium Bonds and you can only get them from us.

Enter your holder's number to check if you’ve won in this month’s Premium Bonds draw. Good luck!

The security community comes together at NSI IMPACT to ignite & foster an impact-mindset that produces pride of work, increases business value, protects U.S. competitive advantage, and strengthens our national security.