Ukrainian-founded · Defense
The Fourth Law
The Fourth Law is a Ukrainian defense startup building NATO-codified autonomous guidance systems used by more than 70 Ukrainian combat units and backed by U.S. public-safety company Axon.
- Stage
- Strategic round ↗
- Hiring
- Hiring ↗
- Founded
- 2023
- Location
- Kyiv
- Focus
- Defense · Autonomous targeting
- Ukraine presence
- Battle-proven with more than 70 Ukrainian combat units
- Status
- Active
Why it’s hot
Strategic Axon investment in 2026; NATO-codified autonomy modules deployed across more than 70 Ukrainian combat units.
Funding stage
Axon-backed strategic investment; amount and conventional venture stage were not disclosed.
Verify stage ↗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
We use public primary sources where possible and identify exactly what each source supports.
- 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.
Last reviewed: August 7, 2026. Read the methodology.