The Iran conflict has done something unusual to M&A markets: while most sectors are seeing deal activity slow, defence-tech is accelerating. The iShares US Aerospace & Defence ETF has surged 14% in 2026. European defence firms are reporting record order backlogs. Autonomous drones, AI-guided fire control systems, counter-UAS platforms and cybersecurity assets are being consumed at a pace that is reshaping revenue forecasts across the sector.
This is not a short-term trade. The structural tailwinds behind defence-tech M&A were building well before 28 February. NATO countries had already committed to substantial increases in defence spending. The Ukraine conflict normalised large-scale procurement of commercial-origin technology for military applications. What the Iran conflict has done is remove the remaining political friction around defence budgets and compressed procurement timelines from years to months.
For PE funds, corporate acquirers and strategic buyers evaluating defence-tech targets, this creates both opportunity and complexity. Defence-tech M&A is not like acquiring a SaaS business or a consumer brand. The sector has unique characteristics that catch generalist deal teams off guard — and the cost of getting diligence wrong is higher than in most sectors.
What’s Driving the Acceleration
Three forces are converging. First, governments are spending at wartime velocity. Defence budgets across NATO, the Gulf states and the Indo-Pacific are being revised upward, with supplemental appropriations and emergency procurement authorities bypassing normal budgetary timelines. This is creating immediate revenue tailwinds for companies with products that are deployable now — not in three years after a development cycle.
Second, the nature of the threat has shifted. The Iran conflict has demonstrated the centrality of autonomous systems, electronic warfare, cyber operations and AI-enabled command platforms. Traditional prime contractor platforms remain important, but the growth edge is in the technology layer that makes those platforms effective. This is where the acquisition targets sit.
Third, the talent and IP constraints in defence-tech are acute. Governments cannot build this capability organically at the speed they need it. They are turning to the private sector, and the private sector is turning to M&A to consolidate capability, secure talent and meet contract obligations. The result is a compressed deal cycle where strategic urgency is overriding the caution that typically characterises defence procurement.
The Diligence Challenges Acquirers Must Navigate
Security clearances and classified programmes. Many defence-tech targets derive a material portion of their revenue from classified contracts. Acquirers — particularly foreign buyers or PE funds with international LP bases — need to understand the Foreign Ownership, Control or Influence (FOCI) implications before they engage. In the US, CFIUS review timelines have extended. In the UK, the National Security and Investment Act gives the government broad powers to intervene. Structure your deal with these constraints in mind from day one.
Customer concentration and contract risk. Defence-tech companies often derive 40–70% of revenue from a small number of government customers. Government contracts can be modified, delayed, or terminated for convenience — a risk that has no direct parallel in commercial M&A. Diligence must go beyond the contract terms to assess the programme’s political durability, funding trajectory and competitive dynamics.
Technology readiness and productisation. Many defence-tech targets sit at the boundary between R&D and production. The gap between a successful prototype and a scaled production programme is where most defence-tech value destruction occurs. Acquirers need to assess Technology Readiness Levels rigorously, understand the remaining development risk, and model the capital required to bridge from demonstration to production.
IP ownership and export controls. Defence-tech IP is frequently encumbered by government rights — particularly if development was funded by government contracts. Background IP, foreground IP and government purpose rights create a complex ownership picture. Export control regimes (ITAR, EAR in the US; UK export licensing) further constrain which markets the technology can serve post-acquisition.
Talent retention. Defence-tech companies are fundamentally people businesses. The engineers, programme managers and cleared personnel who make these businesses work are in extreme demand and notoriously difficult to retain through acquisition transitions. If the deal thesis depends on the continued contribution of key individuals — and in defence-tech, it almost always does — your retention strategy needs to be concrete, funded and agreed before signing.
Where the Opportunity Sits
Autonomous systems and counter-UAS. The Iran conflict has demonstrated the decisive role of drones — both offensive and defensive. Companies producing autonomous platforms, swarm coordination software, counter-drone detection and defeat systems are seeing demand that exceeds their production capacity.
Cybersecurity and threat intelligence. State-sponsored cyber threats have escalated materially since 28 February. Companies with capabilities in operational technology security, threat intelligence, incident response and critical infrastructure protection are particularly well-positioned.
AI-enabled command, control and intelligence platforms. AI platforms that accelerate intelligence processing, targeting, logistics optimisation and command decision-making are moving from experimental to operational status. Acquirers with the clearances and programme relationships to integrate these capabilities are best positioned.
Energy security and resilience infrastructure. The Strait of Hormuz closure has made energy security a first-order political priority. Infrastructure assets — LNG terminals, pipeline networks, grid hardening technology, energy storage — are repricing structurally upward. This is not a spike; it is a permanent re-rating.
The Practitioner’s View
Defence-tech M&A rewards acquirers who combine sector expertise with deal discipline. The current environment is creating genuine opportunities — but it is also creating conditions where overpaying is easy and integration failures are expensive.
If you are a generalist PE fund or corporate acquirer entering this sector for the first time, the single most important thing you can do is bring domain expertise onto your deal team early. The mechanics of defence-tech transactions — from FOCI mitigation to ITAR compliance to government contract novation — are sufficiently different from commercial M&A that general transaction experience alone is not enough.
The window is open. The capital is available. The strategic rationale is strong. The question is whether you have the sector knowledge to execute well.
Aethon Ventures provides management consulting to PE/VC funds, mid-market businesses and corporate development teams across Growth, Profitability, M&A and Transformation. London-based with consulting partnerships in India and Malaysia.
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