Atlantic crossing: How US acquirers are reshaping dealmaking in Europe

The strategic imperative driving US capital eastward

US corporates and sponsors are looking across the Atlantic for growth, capabilities and value, helped by strong equity markets, plenty of dry powder and expanding private credit. Additionally, US market performance and a stronger dollar have put US acquirers at an advantage when it comes to the valuation of UK and European assets.

For US buyers and investors, the opportunity is clear. For UK and other European businesses seeking investment, understanding how to engage with US capital has never been more critical.

What the numbers tell us: 2025 performance and 2026 outlook

Globally, according to LSEG (formerly Refinitiv), M&A transaction values in 2025 increased year on year compared to 2024 (from about $2 trillion to $2.5 trillion), but volumes declined (from about 35,300 deals to 32,500).

Official figures have not yet been released for 2025 but the historic trend for the US and Europe to be each other's largest investors is not expected to have changed. The LSEG's data for the first 8 months of 2025 showed that, although the number of deals involving US acquirers and UK/European targets declined in 2025 compared to 2024 (from about 1,300 to 1,100) deal values substantially increased (from about £104 billion to $130 billion) which reflects the global trend of fewer deals but higher values. The UK was the most active target of US outbound investment (289 deals with a transaction value of $34.4 billion), with Canada and Germany completing the top three.

The LSEG's data shows the deal flow going both ways, with the UK, France and Germany in the top five most active countries when it came to foreign buyers acquiring US targets. Approximately 100 US inbound deals with a value of $8 billion involved a UK acquirer and approximately 380 deals with a value of $60 billion involved another European acquirer. However, for both the UK and Europe, this represented a drop compared to 2024.

These 2025 deal trends likely reflect that the beginning of 2025 involved a period of adjustment as the US began to implement its "America First" trade policy. According to Reuters, some 37% of investors surveyed in early 2025 had postponed, cancelled or scaled back their European investment plans.

The uncertainty that geopolitics brought to the first half of 2025 was tempered by a return to deal doing in the second half, demonstrated most aptly by the flurry of announcements that accompanied the US President's state visit to the UK in October 2025. These included a £10 billion per year investment pledge from Blackstone into the UK over the next decade, as well as UK commitments to the US by GSK and BP amongst others.

The AI boom has also helped to revive dealmaking across the Atlantic. Overall the LSEG's data shows that tech contributed to nearly 33% of US outbound cross-border transactions and over 25% of US inbound transactions. Of note in 2025 were Microsoft's commitment of $30 billion to its UK operations and AI infrastructure and Google's €5 billion investment in Belgium‘s AI and cloud infrastructure. In addition, companies completed strategic deals to acquire European talent: Anthropic acquired the team behind U.K.-based Humanloop, Workday acquired Swedish firm Sana, and NiCE acquired German startup Cognigy for $955 million. These trends are expected to continue to 2026.

Client success story

Osborne Clarke advised US-based Lucid Software, Inc., a global leader in visual collaboration and work acceleration, on its acquisition of airfocus GmbH, a Hamburg-based, AI-powered product management and road mapping platform.

The transaction forms part of Lucid’s strategic expansion of its product offerings. By integrating airfocus, Lucid aims to enhance support for product teams through structured prioritisation, clearer product strategy and more efficient implementation, enabling organisations to move more rapidly from idea to execution. The deal reflects growing demand for solutions that help teams facilitate collaboration and also refine and execute on them with greater precision.

This cross-border acquisition required a high level of transaction expertise as well as in-depth industry knowledge of the technology sector. Osborne Clarke provided comprehensive advice on German and European aspects of the deal, coordinating closely with US counsel Wilson Sonsini Goodrich & Rosati on US law matters.

The team that advised Lucid was led by Dr Björn Hürten, Partner and Co-Head of Osborne Clarke's International Corporate Group and was made up of specialists across M&A, IT, IP, employment, tax, competition, venture capital, commercial, real estate and finance. Their integrated, multi-disciplinary approach enabled Lucid to successfully complete a strategically important transaction that strengthens its product portfolio and supports continued international growth.

Navigating the European deal playbook

Pricing mechanics and risk allocation

European sellers, especially in auctions, often prefer locked-box pricing, where parties set the price using an agreed historical balance sheet date – the so-called, locked-box date. The seller will undertake that, other than disclosed and pre-agreed sums, there has been no "leakage" in value from the target to the seller from the locked box date to completion and will be obliged to repay any leaked sums. The buyer then takes the risk and reward of the target's performance from the locked box date to closing. This provides greater price certainty and typically favours sellers in competitive processes, a marked contrast to US-style completion account adjustments that remain common in US deals.

Warranties, indemnities and insurance

Extensive warranties (akin to US representations and warranties) are standard in the UK and familiar across Europe, though civil law countries may rely more on shorter forms.

The US norm for indemnification and dollar for dollar recovery is market standard in jurisdictions such as France, Italy and Spain, but in jurisdictions such as the UK and the Netherlands, recovery will depend on how the overall value of the target has been affected.

"Sandbagging" expectations differ too: buyer-friendly pro-sandbagging clauses that would allow a buyer to bring a claim notwithstanding its prior knowledge can be unenforceable or resisted. Anti-sandbagging language, preventing the buyer from pursuing recovery for matters within its knowledge is common.

Warranty and indemnity (W&I) insurance (R&W, in US parlance) is widely used, especially in deals involving private equity and/or investor sellers. Seller escrows are less common in Europe than in the US.

Conditionality and financing certainty

While European deals do sometime feature a split exchange (signing) and completion (closing), US-style closing conditions and wide-ranging material adverse change (MAC) clauses are not a typical feature of European private M&A. The bringing down of warranties at closing is also not typical, except in W&I insured deals.

In European M&A, conditions are usually limited to obtaining regulatory or anti-trust consents: conditions which are solely for the buyer's benefit, such as financing marketing conditions, would not usually be accepted. Reverse termination or reverse break-up fees are also not commonly used. Any financing risk is borne by the buyer who is expected to enter into the transaction on a "certain funds" basis – and a seller may wish to see evidence of that.

As fewer deals are conditional, MAC clauses are also less common. Where they are used, they are frequently narrowly drafted and target specific.

Process and formalities

European deals often feature greater formality around closing compared with US deals. Several civil law countries require notarial signings. In the UK, deeds, which involve a more prescriptive signing mechanic, are common.

In some jurisdictions, as in the US, use of paying agents to manage the funds flow is common. For example, in the Netherlands, this is commonly handled by a third party notary account. In other jurisdictions, such as the UK, paying agents and direct payments are becoming more common but previously the market norm was for funds flows to be handled between legal advisers.

Regulatory controls

Aside from the deal terms, there are some other common issues that can arise in European corporate dealmaking which are not always a feature in the US.

Many European jurisdictions, including Belgium, France, Germany and Italy, have mandatory notification/approval requirements for anti-trust reasons if the deal meets domestic thresholds. Other jurisdictions, such as the UK, maintain a voluntary notification system, though notification is recommended if thresholds are met. In addition to domestic rules, there is a mandatory EU-wide merger control regime.

Nearly all European jurisdictions – including the UK, Germany and France - have US CFIUS-style controls on foreign investments into and acquisitions of domestic companies and/or assets on national security grounds. These controls operate differently in different jurisdictions; in the EU there is an EU-wide minimum standard and reporting requirement. In the UK, mandatory notification and pre-clearance is required for acquisitions of even minority stakes in companies operating in broad range of sensitive sectors.

Where anti-trust or foreign investment/national security controls are relevant, this will need to be factored into the deal timetable and transaction risk analysis.

Works councils and information/consultation rules can affect timetables in Germany, France and the Netherlands, even for share deals. For asset deals, under so-called TUPE rules, which apply in many European jurisdictions, employees working in the target business will transfer automatically to the buyer and a consultation process must be undertaken with them. US acquirers and investors must factor these stakeholder engagement requirements into deal planning and confidentiality strategies.

Practical implications

  • For US acquirers: Competitiveness for US acquirers depends on embracing European norms early and building relationships with European advisers who understand both systems. That means arriving with credible "certain funds", being ready to use locked-box terms in auctions, and leaning on W&I insurance to minimise seller recourse (with insurers often requiring a non-US, domestic acquisition company). It also means tailoring diligence to local disclosure practice, including separate disclosure letters and general disclosures of data rooms in the UK and parts of Europe.

  • For UK/European sellers: The opportunity for sellers is to capture a dollar-driven valuation premium without accepting US-style conditionality. Auctions that blend vendor diligence, locked-box economics and W&I insurance cover remain effective. Align early on foreign direct investment and merger control, and clarify works council steps. This de-risks timetables and keeps competitive tension high. European targets should anticipate more extensive warranty packages than typical in domestic European deals, prepare for intensive due diligence processes, and clearly communicate any requirements for regulatory clearances or employee consultation early in negotiations.

Looking ahead: what 2026 holds

Baseline projections point to modest volume growth into 2026, with a larger uplift in value if the tilt toward bigger deals persists. Inbound US investment into the UK and Europe should stay resilient, powered by dollar strength, attractive valuations and deepening private credit. Watch tariff policy and geopolitical spillovers, any bursting of the AI bubble, the pace of rate cuts, and the maturation of European exits (IPO and trade) that recycle assets back to US buyers.

For deal teams on both sides of the Atlantic, winners will pair clear strategy with European execution fluency: certain funds, disciplined conditionality, locked-box know-how and regulatory choreography that keeps clearance paths and competition open.

The Atlantic divide in deal practice is narrowing as cross-border deal flow intensifies, but meaningful differences persist. Companies on both sides that master these nuances will capture the substantial value available in what promises to be another strong year for transatlantic investment.

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Greg Leyshon

Co-head International Corporate Group, Partner, UK

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Dipika Keen

Head of Business Transactions Knowledge, UK

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Ray Berg

Partner, US

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Björn Hürten

Co-head International Corporate Group, Partner, Germany

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Steve Wilson

Managing Partner, US

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Atlantic crossing: How US acquirers are reshaping dealmaking in Europe


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