New US Foreign Investment Regulations: What It Means for UK Companies
On February 21, 2025, US President Donald Trump issued a National Security Presidential Memorandum that could significantly reshape the landscape of US foreign investment. The two core priorities outlined are promoting foreign investment while safeguarding national security interests, particularly from perceived adversaries like China and Russia. For UK companies, especially those in the private equity and related sectors, these changes bring both opportunities and risks. Here’s a deeper look at what this means.
Key Changes in US Foreign Investment Rules
Tighter Scrutiny for Adversary Countries
One of the most significant shifts is the introduction of nationality-based reviews for US foreign investment, with a focus on adversary nations like China and Russia. While this primarily targets companies from these nations, UK private equity firms could feel the ripple effect. As the US ramps up scrutiny on investments from foreign adversaries, the regulatory environment will become more complex for UK firms that have any links to such countries.
UK private equity firms with investments or partnerships involving Chinese or Russian entities might face increased barriers to entering the US market or expanding existing operations. Even if a firm has no direct ties to adversary countries, its involvement with sectors deemed sensitive—like AI, quantum computing, or critical infrastructure—could attract unwanted attention. This could result in a delay in transactions, added compliance costs, and potential barriers to acquiring US companies in high-tech industries.

Outbound Investment Restrictions
The memorandum indicates that the Trump will further tighten US foreign investment regulations on outbound investments, particularly from US firms into China, especially in sectors linked to national security. While this may seem to primarily affect US firms, UK private equity firms should be aware of how this could influence cross-border deal-making, particularly in industries like semiconductors, biotechnology, and AI. US firms that are restricted in their investments will likely look for alternative partners outside China, which could open up opportunities for UK firms—but with more oversight and regulation.
UK private equity firms looking to work with US counterparts in sectors tied to national security should be cautious of the impact these restrictions will have. For example, a partnership with a US firm to invest in Chinese tech startups might be delayed or blocked, depending on the investment’s scope. Firms will need to consider new strategies to ensure compliance with the expanding outbound investment restrictions, potentially navigating new regulatory hurdles in both the US and China.
Expedited Process for Allies
The US government is keen to encourage investment from allied countries, and UK businesses could benefit from a “fast-track” process for certain investments. This will be particularly relevant in sectors like advanced technology, AI, and other critical industries. The hope is that by simplifying the process for allies, the US can bolster its technological leadership while ensuring national security.
The expedited process could offer UK private equity firms an edge when investing in US businesses, particularly in high-tech sectors. This could speed up deal-making, reduce administrative burden, and help firms get a quicker return on investment. However, firms should also be mindful of the sectors that are still considered sensitive, as any investment in these areas will still face significant scrutiny, even under the fast-track system.
Focus on Simpler, Time-Limited Agreements
A move towards clearer, time-limited mitigation agreements could reduce the complexity of US regulatory reviews. Under previous administrations, mitigation agreements—conditions set to address national security concerns—became increasingly bureaucratic and costly. The Trump administration’s push for more defined and time-bound agreements signals a shift towards more straightforward, achievable compliance.
For UK private equity firms that have previously struggled with the burden of complex and open-ended mitigation agreements, this could represent a positive change. Deal timelines could be more predictable, with fewer compliance hurdles, leading to faster and more cost-effective transactions. However, this shift could also mean less flexibility for firms looking to make larger, more strategic acquisitions in sensitive sectors, as the US government will likely continue to have a tight grip on national security risks.
Conclusion
The new US foreign investment regulations laid out by President Trump represent a critical shift in foreign investment policies, with significant implications for UK private equity firms and their strategies. While the fast-track process offers some promise, the increased scrutiny on sensitive sectors and outbound investments could create substantial barriers for UK investors. Firms will need to navigate a more complex regulatory environment, balancing opportunities in high-tech industries with the risks posed by heightened national security concerns. For private equity and related sectors, adapting to this new landscape will require careful planning and robust compliance strategies.
How The Small Consultancy Can Help
At The Small Consultancy, we have extensive global experience in building new teams and establishing a presence in key markets, including the US. Our deep understanding of international employment legislation allows us to navigate the complexities of hiring, compliance, and business strategy across different regions. Through our sister company, Startup Founders Toolkit, we also provide specialized support for navigating investment rules and developing effective business strategies, ensuring your expansion is both compliant and strategically sound. Whether you’re setting up operations, managing talent, or exploring new market opportunities, our team can offer the tailored guidance you need to succeed.
We can assist in:
- Identifying regulatory risks and opportunities: Helping you understand the implications of new US regulations on your investment strategies.
- Talent acquisition and management: Offering insights into key sectors such as technology and advanced infrastructure to help you recruit the right talent for your US ventures.
- Strategic guidance: Supporting you in navigating complex cross-border partnerships and mitigating potential compliance challenges.