Mishcon de Reya page structure
Site header
Main menu
Main content section

National Security and Investment Act

Hub

NSI checker   Get in touch

UK businesses, and in particular start-up companies, face a variety of security-related threats. In some cases, these threats have the potential not just to cause financial or reputational damage to the business concerned, but also to threaten the UK's national security. In order to protect UK assets and infrastructure from national security threats, the National Security and Investment Act 2021 (NSI Act) was brought into force on 4 January 2022.

It is important that businesses both understand their obligations under the NSI Act regime, especially when seeking new investors, and take appropriate steps to guard against threats they face generally in their day-to-day operations.

Overview

Our overview of the NSI Act regime includes an examination of the NSI Act's mandatory and voluntary notification regimes and takes a closer look at some of the high risk sectors within the mandatory regime which are likely to be relevant to tech businesses. 

Overview

NSI Act checker

Our NSI Act checker offers a series of simple questions to help you understand whether notification under the NSI Act is likely to be required or at least considered for your transaction.

NSI checker

Related content

Loading
News
interior abstract pattern

Overhauling the National Security and Investment Act regime: new and updated guidance aims to increase clarity and reduce burden for businesses

In line with the commitments made in the outcome of the National Security and Investment Act Call for Evidence published in April, the Cabinet Office has this week published both an updated "Section 3 Statement", which sets out how the Government expects to exercise its call-in power, and various updates to the Government's Market Guidance notes on the regime.

News
abstract-architecture-white

National Security and Investment Act – new market guidance will help navigate the regime as the first final order is published

The National Security and Investment Act 2021 came into force fully on 4 January this year. The first annual report on the operation of the Act was published in June, and more recently in July the Department for Business, Energy and Industrial Strategy (BEIS) published a set of market guidance notes, based on an analysis of notifications received under the Act and feedback from stakeholders.

Get in touch

Subscribe to our mailings

Keep up to date with news, publications and briefings

Subscribe
How can we help you?
Help

How can we help you?

Subscribe: I'd like to keep in touch

If your enquiry is urgent please call +44 20 3321 7000

I'm a client

I'm looking for advice

Something else