37 Deals, $5.5 Billion: Defense, Space, and Cyber Are Merging Into One Investment Thesis

Thirty-seven deals. Roughly $5.5 billion in capital. Ten days. That is what the defense, space, and cybersecurity sectors just produced between March 16 and 26 — and the pace is accelerating.

But the raw numbers obscure the more interesting signal buried in the data: these three sectors, once distinct investment categories with different buyer profiles and risk appetites, are collapsing into a single thesis. The same macro forces — geopolitical tension, AI proliferation, and the digitization of physical warfare — are driving capital into all three simultaneously. And the investors showing up are not just specialist defense funds anymore.

The PE Exits That Set the Tone

Two M&A transactions dominated the capital totals this period, and both tell the same story: defense assets have become premium exit opportunities for private equity.

Advent International is reportedly exploring a $4 billion divestment of Ultra Maritime, its naval defense and sonar technology business. The process is early-stage — no buyer has been named — but the price tag alone signals how dramatically defense multiples have expanded. Advent acquired Ultra Electronics (the parent) for roughly £2.6 billion in 2022. A $4 billion exit for just the maritime division would mark a significant step-up.

Meanwhile, in Canada, Kraken Robotics completed its $615 million acquisition of Covelya Group, a deal that deepens its position in underwater defense technology. This was not exploratory — it closed. And it positions Kraken as one of the larger pure-play ocean defense companies globally.

Arlington Capital Partners also moved to acquire Eptec Defence in Australia, adding to a pattern of US-based PE firms shopping for defense assets across allied nations.

Germany Minted a Defense Unicorn — and Nobody Blinked

Perhaps the most telling signal of the period was German defense startup Stark reaching a valuation above €1 billion. Three years ago, a European defense unicorn would have been front-page news. Now it barely registered outside the specialist press.

That normalization is the real story. Defense tech startups are no longer controversial bets — they are consensus trades. And the capital is flowing accordingly:

• Arc raised $50 million to expand into electric defense boats, blending clean energy with military applications.
• Egide raised €8 million in seed funding for its air defence systems — a category that barely had VC-backed startups five years ago.
• IG Defence secured $5 million to scale indigenous drone technology in India.
• Vanguard Defense raised $5 million at seed stage for an AI data observability platform purpose-built for defense applications.
• Striveworks raised a growth round to scale AI operations for defense and allied governments.

Every one of these deals has an AI component. That is not a coincidence.

Cybersecurity: 16 Deals, $619 Million, and AI Everywhere

Cybersecurity was the busiest sub-sector by deal count, with 16 transactions totaling over $619 million. The standout was Oasis Security's $120 million Series B, which values the non-human identity (NHI) security company at a level that would have seemed aggressive two years ago.

But Oasis was not alone in pulling oversized rounds. Two 26-year-old founders who left the Department of Homeland Security built an AI-powered cyber startup now valued at $200 million. RunSybil raised $40 million to automate offensive security using AI agents — essentially training AI to think like a hacker so defenders do not have to.

The mid-market was equally active:

• BlueFlag Security scored a $28 million Series A
• Eclypsium raised $25 million to secure AI infrastructure itself — a meta-problem that barely existed 18 months ago
• Raven raised $20 million for runtime application security
• Allure Security raised $17 million to fight digital impersonation and disinformation using AI
• Onit Security raised $11 million for automated vulnerability remediation

The pattern across nearly every deal: AI is both the attack vector being defended against and the primary technology being used to defend. Eclypsium is securing AI infrastructure. RunSybil is using AI for offensive testing. Allure is fighting AI-generated impersonation. The cybersecurity sector is in an AI arms race with itself.

The Quiet Space Renaissance

Eight space and satellite deals landed in our tracker this period, totaling $153 million in disclosed funding. The amounts are smaller than defense or cyber, but the breadth of activity suggests something structural is happening.

Aalyria Technologies raised $100 million in Series B funding to build space communications infrastructure — think of it as the networking layer for the growing constellation of satellites. PAVE Space secured $40 million to accelerate satellite deployment. Enigma Aerospace emerged from stealth with $7 million. Arinna raised $4 million at seed stage to solve the space power problem — a niche that becomes critical as orbital infrastructure scales.

On the launch side, Innovative Space Carrier raised ¥3.2 billion in Japan for its reusable rocket program, while Rocket-X secured funding in the UK from the Midlands Engine Investment Fund. K2 announced plans to launch its first high-powered satellite for space-based computing.

The common thread: these are not moonshot bets. They are infrastructure plays — communications, power, deployment, compute — for an orbital economy that is starting to resemble the early days of terrestrial cloud computing.

Drones: Small Deals, Big Implications

The drone sub-sector produced four deals totaling $28 million. Modest numbers, but the deals themselves reveal how quickly military drone technology is diffusing.

Unifly acquired EuroUSC-Benelux to combine drone technology with regulatory expertise — a deal that only makes sense if you expect commercial and military drone operations to scale significantly. IG Defence raised $5 million in India for indigenous drone tech, part of a broader push by the Indian government to build domestic defense manufacturing capacity. Everdrone raised €3.34 million in Europe, and Lucid Bots raised $20 million for its commercial drone platform.

What This Means Going Forward

The convergence of defense, space, and cybersecurity into a unified investment category has a simple explanation: the threats are converging too. A modern military operation depends as much on satellite communications and cyber defenses as it does on ships and aircraft. Investors are pricing that in.

Three signals stand out from this 10-day window:

First, the talent pipeline has shifted. Two DHS employees in their twenties built a $200 million company. Defense startups are attracting founders who would have gone to fintech or SaaS three years ago. That is a leading indicator.

Second, AI is not a feature — it is the product. Across all 37 deals, AI appeared as a core technology in at least 20. This is not incremental improvement. It is a generational platform shift in how security products are built.

Third, PE firms are treating defense like infrastructure — a stable, cash-flowing asset class. The Advent Ultra Maritime process, the Kraken/Covelya close, and the Arlington/Eptec acquisition all point to defense becoming a preferred destination for institutional capital seeking long-duration returns.

If this pace holds through Q2, 2026 will be the year that defense tech stopped being a niche and became a core allocation. The data from these 10 days suggests it already has.