Skyeton
Ukrainian maker of the long-endurance Raybird (ACS-3) ISR drone — 28-hour fixed-wing reconnaissance in AFU service since 2018, now routing production into Slovakia and NATO markets around wartime export limits.
Background
Skyeton was founded in 2006 in Kyiv by Oleksandr Stepura as a maker of ultralight and light-sport aircraft, notably the K-10 Swift. Russia's 2014 seizure of Crimea pushed the firm toward unmanned systems, and it developed the Raybird-3 (designated ACS-3) — a small, catapult-launched fixed-wing platform built for long-duration reconnaissance. The Raybird passed Ukrainian state testing and entered Armed Forces service in 2018, well before the full-scale invasion, and is now one of the AFU's key long-range ISR assets.
Skyeton reports more than 500 staff, over 100 engineers and 1,000-plus systems produced. Leadership runs across two roles: Roman Kniazhenko is cited as CEO (Ukrainska Pravda, Jan 2026), while Pavlo Shevchuk holds the 'International CEO' title driving the export and NATO-partnership push. The company frames itself as 'Ukrainian-born' but increasingly international — a Slovak plant (via subsidiary Tropozond s.r.o.) opened in 2024, an Anglo-Ukrainian JV with Prevail Partners targets UK production, and partnerships now span France, Denmark, Poland and Germany.
Financial footing
- Confirmed/reported: Ukraine's AFU ordered 75+ Raybird intelligence systems (Feb 2022-May 2024)
- System price ~$1.2M each (3 aircraft + ground control, launcher, sensors)
- Slovak plant capacity ~25 systems/yr (planned ~4x expansion)
- Pipeline (mostly MoUs/JVs, not booked sales): UK JV 'Skyeton Prevail Solutions' targeting Project Corvus
- Poland distribution via Allies
- Partnerships/LOIs with France (Harmattan AI), Denmark (Quadsat), Germany (INTEC, ONBERG)
- Backers: No institutional VC/PE round is publicly confirmed. Founder Oleksandr Stepura self-funded the initial Slovak line (~$3.5M) and the firm sought a $15M expansion round in 2024 (whether it closed is unconfirmed). Ownership appears founder/private; funding structure is opaque.
Skyeton is privately held; no reliable valuation, total-raised or revenue figure is public. In a 2024 Forbes Ukraine interview, founder Oleksandr Stepura priced a full Raybird-3 system at about $1.2M — three aircraft plus ground control stations, launcher, antenna and sensors, with the priciest camera near EUR 300,000 and 60-70% of unit cost going to R&D and engineering salaries.
He put ~$3.5M into the Slovak line (renting ~1,000 m2, ~25 systems/year capacity) and said the firm was raising $15M to roughly quadruple output; whether that round closed is unconfirmed. Ukraine's martial-law rules — an export ban plus a 25% markup cap that blocks recovering development costs — squeeze domestic economics, which is precisely why Skyeton pushed production abroad. Profitability and current true output are not disclosed.
Major customers & contracts
The anchor customer is Ukraine's military: the AFU had ordered 75-plus Raybird intelligence systems between February 2022 and May 2024, and the drone is one of its key long-range reconnaissance platforms. Skyeton is now building a foreign order book aimed at NATO buyers.
Poland's Allies became the official Raybird distributor (2025); the UK JV eyes the British Army's Project Corvus, a Watchkeeper Mk1 successor; and France's Harmattan AI, Denmark's Quadsat, and Germany's INTEC and ONBERG have signed partnerships or letters of intent. Firm export contract values and delivered foreign units are not public — much of this is pipeline (MoUs and JVs) rather than confirmed sales, and should be read as intent, not booked revenue.
Leadership & contact surface
Leadership: Roman Kniazhenko (CEO, per Ukrainska Pravda Jan 2026); Pavlo Shevchuk (International CEO, export/NATO push); founded by Oleksandr Stepura
Official site: https://skyeton.com
Competitive position
Raybird sits in the small, catapult-launched, long-endurance ISR class — NATO Class I — competing with systems like AeroVironment's JUMP-20/Puma, Textron's Aerosonde, Elbit's platforms and Watchkeeper-type UAS, plus Germany's Quantum Systems and fellow Ukrainian makers such as Ukrspecsystems (Shark, PD-2). Skyeton's pitch is endurance-per-dollar from a combat-hardened design: 28-plus hours aloft, ~2,500 km range, a 5,500 m ceiling and a data link to ~220 km, at a system price it argues undercuts Western equivalents.
The firm claims only about five companies globally match its weight-to-endurance ratio — a self-assessment, not an independent benchmark. Its real edge is a live operational feedback loop from the front and rapid upgrades (SATCOM, interceptor-detection, a hydrogen-hybrid variant) that Western primes on peacetime cycles struggle to match.
Battlefield relevance
Skyeton says the Raybird fleet has logged more than 300,000 combat flight hours — a figure carried by CEPA but sourced from the company, so treat it as reported rather than independently verified. The platform's job is deep reconnaissance and artillery/strike fire-correction: EO/IR sensors, a laser target designator and a live FPV feed feed targeting for Ukrainian fires, alongside maritime surveillance.
Wartime opacity is real — sortie and hours claims can't be audited. Russia takes the firm seriously enough to have destroyed its Kyiv office in the May 2026 mass strikes; production had been pre-dispersed, so output reportedly continued. Recent survivability work — an interceptor-drone detection module — reflects a threat environment where long-endurance ISR aircraft are increasingly hunted.
Sources & verification
- Euromaidan Press — Skyeton makes Raybird reconnaissance drone Ukraine has used since 2018. Russia just destroyed its Kyiv office (2026-05-14)
- AIN.UA — Drone manufacturer Skyeton entered the Slovakian market. $3.5M was invested in the launch (2024-07-31)
- CEPA — How Private Capital Can Accelerate European Rearmament (300,000+ combat flight hours) (2026-05-06)
- FlightGlobal — Skyeton Prevail Solutions plans Plymouth production line for Raybird UAS as potential Watchkeeper successor (2025-09-11)
- Ukrainska Pravda — Ukrainian hydrogen-powered Raybird reconnaissance drone begins combat duty (CEO Roman Kniazhenko) (2026-01-15)
- oboronka.mezha.ua — Skyeton joins forces with ONBERG to strengthen European defence (Pavlo Shevchuk, International CEO) (2026-06)
- Militarnyi — Ukrainian company Skyeton launches UAV production in Slovakia (2026-03-08)
- Unmanned Systems Technology — Skyeton partnership to supply Poland with fixed-wing UAS (Allies distributor) (2025-09-02)
- Skyeton — official site (Raybird specs, About)