Swarmer Inc., the Nasdaq-listed (SWMR), Austin-based developer of autonomy software for drone and robot swarms, signed a definitive agreement on September 10, 2026 to acquire Kyiv-based Ratel Robotics, a maker of unmanned ground vehicles (UGVs), for a mix of cash and stock worth up to $224 million if all earnout milestones are met. Ratel says it has secured $86 million in contracts in 2026.

Why it matters: a software company whose product is controlling many autonomous machines is buying a hardware supplier with frontline volume, in a sector where Ukrainian procurement has been spread across many small vendors.

Key Facts

  • Definitive agreement signed September 10, 2026; consideration up to $224M in cash and stock, including earnouts
  • Ratel reports $86M in contracts secured in 2026
  • About 37% of the UAH 11bn ($246.85M) Ukraine’s MoD procurement agency spent on UGVs, Jan 1–Apr 18, 2026 (per the release)
  • Ratel: founded 2023, Kyiv, 300+ staff; combined company nearly 500 people
  • Swarmer: Austin-based, Nasdaq: SWMR, chaired by Erik Prince; closing subject to regulatory and shareholder approvals

What is Swarmer buying?

Ratel Robotics was founded in 2023 in Kyiv by Taras Ostapchuk, who stays on as CEO and will report to Swarmer president Alex Fink. It builds modular UGVs, sold as the Ratel H and Ratel M, for battlefield logistics, casualty evacuation, reconnaissance, drone launching and demining. According to the announcement, it is also developing UAV variants, mobile workshops and solar-powered trailers, and is in discussions with several NATO countries.

The release puts Ratel’s share of domestic demand at approximately 37% of the UAH 11 billion ($246.85 million) that Ukraine’s Ministry of Defense procurement agency spent on UGV contracts between January 1 and April 18, 2026. The Robot Report adds that Ratel holds NATO stock numbers and AQAP 2110 quality certification, and that its existing Ministry of Defense contracts are not affected by the deal. Ratel’s more than 300 employees are expected to join Swarmer, taking the combined company to nearly 500 people.

Who is Swarmer?

Swarmer was also founded in 2023. It is headquartered in Austin, Texas, with operations in Ukraine, Poland and Estonia, and sells what it describes as vendor-agnostic software that lets one operator control hundreds of autonomous platforms. The company says its software has been used in more than 100,000 combat missions since April 2024. It raised a $15 million Series A from U.S. investors in 2025, according to The Robot Report. Its board chairman is Erik Prince, founder of the private military contractor Blackwater.

Fink framed the rationale as pairing hardware with software: “Combining a battle-tested launch platform with our combat-proven autonomy software is the key to creating versatile, interoperable solutions.”

How is the $224 million deal structured, and when will it close?

The announcement describes the consideration only as a mix of cash and stock, with the $224 million figure reached only if all earnout milestones are met; it does not break out the upfront amount. Closing is subject to customary conditions and any required legal, regulatory and shareholder approvals, and no target date was given. The $224 million should therefore be read as a ceiling, not the price paid at signing.

The deal follows a run of large defense-autonomy transactions covered here, including Neros’ $250 million Series C and Quantum Systems’ $1.2 billion round. Unlike those, this one is a consolidation move: buying an existing Ukrainian supplier and its contract book rather than raising capital to build capacity.

Frequently Asked

How much is Swarmer paying for Ratel Robotics?

Up to $224 million in a mix of cash and stock, a figure reached only if all earnout milestones are met. The upfront portion was not broken out in the September 10, 2026 announcement.

What does Ratel Robotics make?

Modular unmanned ground vehicles, the Ratel H and Ratel M, used for battlefield logistics, casualty evacuation, reconnaissance, drone launching and demining. It is also developing UAV variants, mobile workshops and solar-powered trailers.

How big is Ratel in Ukraine’s UGV market?

According to the deal announcement, Ratel products accounted for about 37% of the UAH 11 billion ($246.85 million) that Ukraine’s Ministry of Defense procurement agency spent on UGV contracts from January 1 to April 18, 2026.

Who chairs Swarmer?

Erik Prince, founder of the private military contractor Blackwater, is chairman of Swarmer’s board. Alex Fink is the company’s co-founder and president.

Sources & Further Reading