Ukrainian-founded · Defense
The Fourth Law
The Fourth Law is a Ukrainian defense startup building NATO-codified autonomous guidance systems used by more than 50 Ukrainian security and defense units and integrated by more than 20 drone manufacturers.
- Stage
- Strategic round ↗
- Hiring
- Hiring ↗
- Founded
- 2023
- Location
- Kyiv
- Focus
- Defense · Autonomous targeting
- Ukraine presence
- Used by 50+ Ukrainian security and defense units and integrated by 20+ drone manufacturers
- Status
- Active
Recent momentum
Axon-backed strategic investment in February 2026; a June 2026 agreement with RSI Europe targets production of thousands of drones in Lithuania.
Funding stage
Undisclosed strategic investment backed by Axon, announced in February 2026; an earlier first round was announced in July 2025 without an amount.
Stage source ↗Hiring signal
39 current roles across engineering, product, operations, finance, sales, and recruiting.
Jobs ↗Ukrainian connection
The company was founded in Ukraine by Yaroslav Azhnyuk to solve frontline autonomy needs and develops its systems through a continuous feedback loop with Ukrainian military units.
Founder
Yaroslav Azhnyuk
Founder and CEO · Ukrainian serial entrepreneur building autonomous defense systems in Kyiv.
LinkedIn profile ↗Sources
- The Fourth Law company profile ↗The Fourth Law · Supports: founder, Ukraine connection, deployments, NATO codification, partners.
- The Fourth Law secures strategic investment ↗Yaroslav Azhnyuk · Supports: investment, Axon partnership, U.S. expansion, momentum.
Reviewed August 8, 2026. Methodology.