Buying a European defence company: screening and approval checks

Buying a European defence company can require several separate reviews: national investment screening, merger control, foreign-subsidy assessment where applicable, customer change-of-control procedures and checks on security, licences and publicly funded intellectual property. There is no single European defence acquisition clearance. Start with the buyer's ownership and rights, the target's activities and countries, and the transaction structure. Build each applicable approval or consent into the signing and closing plan, using the rules in force for the relevant jurisdiction.

Why should the analysis begin with activities and control rights?

A company's broad industry label rarely resolves the approval map. Establish what each legal entity does, which customers it serves, what information it holds and where its assets and staff are located. A small software or maintenance business can have sensitive relationships that are not obvious from its name. The proposed investor's nationality is only part of the analysis; the ownership chain and rights acquired can also matter.

Prepare an accurate transaction diagram before making filing assumptions. Include the acquisition vehicle, ultimate controllers, voting interests, board rights and any staged or contingent changes. An asset purchase, share acquisition and exclusive licence can raise different questions. A minority investment should be assessed through the rights attached to it, rather than dismissed as harmless because the percentage is below majority ownership. The result should describe the actual transaction, not an approximate headline stake.

What changed in the EU screening framework in 2026?

The Commission's 26 June 2026 announcement reports publication of updated foreign-investment screening rules, including broader coverage of indirect investment and EU investors ultimately controlled from outside the EU. It also describes an 18-month period for Member States to implement minimum requirements. As of 29 September 2026, that announcement should not be read as evidence that every national procedure has already changed identically.

For a live deal, distinguish the EU cooperation framework from the national rules that determine a filing and the current authority process. Record the legal basis and effective date used for each country. A transaction expected to close later may need monitoring for intervening changes. The Commission announcement establishes the direction and transition; national legislation and transaction-specific analysis establish what the parties must do now.

How do France and Germany illustrate national differences?

The French Treasury's investment-screening guidance sets out three cumulative questions: the origin of the investment, the type of transaction and the target's activity. Its process can require prior authorisation in specified sensitive sectors, including defence-related activities. A French target's products, contracts and ownership structure therefore need to be described accurately before concluding whether the procedure applies.

Germany distinguishes general cross-sector screening from a sector-specific route for defined defence and security activities. The ministry's investment-screening FAQ explains that the sector-specific route can include investors from other EU or EFTA countries. A purchaser should not assume that an intra-European acquisition is automatically outside screening. Check the current German activity categories, transaction thresholds and procedural requirements against the particular deal instead of importing the French test.

What needs separate attention in a UK acquisition?

The UK's National Security and Investment guidance explains mandatory notification for qualifying acquisitions within defined sensitive areas. A notifiable acquisition completed without government approval is legally void, and the acquirer may also face criminal or civil penalties. The assessment is not limited to foreign buyers. The transaction plan must therefore identify whether prior clearance is required before ownership or control is transferred.

The government's sector guidance shows why the target's supply-chain role matters: the defence category reaches relevant contractors and subcontractors, and the guidance discusses classified material and customer relationships. It also distinguishes MOD contractual change-of-control notification from NSI screening. These are separate obligations. Obtaining a statutory decision should not be treated as evidence that all notices or consents under the target's customer contracts have been completed.

How do competition and foreign-subsidy reviews enter the plan?

The Commission's merger procedures guidance explains EU merger review and the concept of an EU dimension. National competition rules can also need assessment where the EU route does not apply. Investment screening and competition review address different questions, so a conclusion under one does not clear the other. Deal size alone is an inadequate shortcut without examining the relevant jurisdictional tests.

The Foreign Subsidies Regulation guidance adds a separate assessment for relevant concentrations and foreign financial contributions. Identify the required information early, because collecting group-wide contribution data can involve teams far beyond the target. A contribution is not automatically a distortive subsidy, but the parties still need to assess the notification rules. Allocate this work separately in the transaction timetable rather than discovering the question shortly before signing.

Which contractual and operational permissions may remain?

Review customer contracts, security arrangements and licences for consequences of the proposed ownership or organisational change. The diligence exercise should identify the responsible authority or counterparty, the trigger and the required action. A notice, a consent and an updated administrative record are different deliverables. Do not assume that a permission held by the target can be used unchanged by the buyer's other entities after completion.

Plan information access during diligence and integration. Some materials may require restricted access arrangements even before closing. A purchaser's commercial desire to review all technical information does not determine who is entitled to receive it. The operating plan should identify which functions can be combined immediately and which depend on further permissions. The security-clearance guide helps separate facility, personnel and project-access questions.

How can public funding and intellectual property affect value?

A target's funded projects can contain ownership, control and results-related conditions that deserve their own review. Obtain the actual grant agreements, consortium documents and relevant licences rather than relying on a summary that the company participated in a European programme. Assess whether the contemplated investment changes the facts on which eligibility or assurances were based. Our minority-control guide examines that specific issue.

The funded-IP guide addresses transfers and exclusive licences separately. Commercially, the buyer needs to understand what technology it can use, where and through which entities. A valuation premised on unrestricted integration can be misleading if valuable rights carry conditions or third-party dependencies. Model the business under any material restriction that remains, rather than treating legal clearance as confirmation of the assumed integration benefits.

What should the approval workstream deliver before closing?

The practical output is a country-and-obligation map linked to the proposed transaction. Each item needs a documented conclusion, an owner, evidence required and its effect on signing, closing or subsequent operation. Conditions precedent should correspond to actual approvals and acceptable outcomes. The parties also need a plan for material remedies, extended review or a change in transaction structure that makes an earlier assessment obsolete.

Treat statutory review periods as one input to scheduling. Preparing a complete submission, answering questions and agreeing conditions can affect the practical timeline. A hypothetical buyer that discovers an unreported subcontract late in diligence may need to revisit its entire scope assessment. Early evidence gathering makes these dependencies visible and allows commercial negotiations to address them, while preserving the distinction between legal permission to acquire and the industrial ability to realise the intended plan.