Sayenko Kharenko advised Swarmer on the acquisition of Ratel Robotics

Sayenko Kharenko acted as Ukrainian legal counsel to Swarmer, Inc. (NASDAQ: SWMR) in connection with the acquisition of Ratel Robotics, a leading Ukrainian manufacturer of unmanned ground vehicles. The parties entered into a definitive agreement, which was announced on 10 September 2026. The consideration comprises a mix of cash and stock worth up to USD 224 million if all earnout milestones are met. Closing remains subject to customary conditions and any required approvals.

Swarmer develops vendor-agnostic autonomy software that is designed to allow a single operator to command hundreds of autonomous platforms in real time. Systems powered by Swarmer’s technology have supported more than 100,000 combat missions in Ukraine since April 2024.

Ratel Robotics manufactures unmanned ground vehicles used for logistics, casualty evacuation, reconnaissance, drone launching, and demining, and also develops UAV variants, mobile workshops, and solar-powered trailers. In 2026, Ratel Robotics secured contracts totalling USD 86 million.

Sayenko Kharenko advised the buyer on all Ukrainian law aspects of the transaction. The scope of the firm’s work included legal due diligence of Ratel Robotics, advice on the transaction structure, and advice on tax, competition, intellectual property and export control matters, as well as support on the Ukrainian law elements of the transaction documentation and negotiations.

The work of the Sayenko Kharenko team on various project streams was led by Alina Plyushch, Maryna Buinytska, Kateryna Utiralova and Ihor Korohod.

This transaction has become another important milestone for Sayenko Kharenko’s Defence Group led by Nazar Chernyavsky and Dmytro Riabikin, and demonstrates how the firm delivers the best possible results for its clients by combining a multidisciplinary approach with deep defence industry expertise.