The Fourth Law
Ukrainian AI autonomy modules for FPV drones that hold terminal guidance under electronic warfare.
The Fourth Law builds TFL-1, an AI co-pilot module that autonomously completes an FPV drone's final ~500m terminal-guidance phase when EW jamming breaks the pilot's control link, plus a TFL-AntiShahed counter-UAS module deployed across 50+ Ukrainian military units and the Lupynis-10-TFL-1 UAV. Founded in 2023 by Yaroslav Azhnyuk, previously founder of Petcube (YC 2016). Raised an undisclosed seed round co-led by HPI Ventures and Caesar Ventures with 10x Founders, VP Venture Partners, Positron, XISTA Science Ventures, and High-Tech Gründerfonds, plus a later undisclosed strategic investment from Axon Enterprise (Feb 2026). No dollar figures are publicly disclosed for either round.
Overview
- Headquarters
- Kyiv, Ukraine
- Founded
- 2023
- Employees
- Total funding
- Stage
- Seed
- Status
- active
- Domains
- FPV drone autonomy, Terminal guidance AI, Counter-UAS
- Website
- thefourthlaw.ai
Investors0
No linked records yet.
Cap table0
Approximate ownership by holder. Indexed holders link to their records.
| Holder | Instrument | Ownership |
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Contracts0
No linked records yet.
Programs0
No linked records yet.
Frequently asked
- What does The Fourth Law do?
- The Fourth Law builds TFL-1, an AI co-pilot module that autonomously completes an FPV drone's final ~500m terminal-guidance phase when EW jamming breaks the pilot's control link, plus a TFL-AntiShahed counter-UAS module deployed across 50+ Ukrainian military units and the Lupynis-10-TFL-1 UAV. Founded in 2023 by Yaroslav Azhnyuk, previously founder of Petcube (YC 2016). Raised an undisclosed seed round co-led by HPI Ventures and Caesar Ventures with 10x Founders, VP Venture Partners, Positron, XISTA Science Ventures, and High-Tech Gründerfonds, plus a later undisclosed strategic investment from Axon Enterprise (Feb 2026). No dollar figures are publicly disclosed for either round.
- Where is The Fourth Law headquartered?
- The Fourth Law is headquartered in Kyiv, Ukraine and was founded in 2023.
- What does The Fourth Law specialize in?
- The Fourth Law works across FPV drone autonomy, Terminal guidance AI, Counter-UAS.
Sources & citations2
Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.
- 1
Seed round co-led by HPI Ventures and Caesar Ventures, amount undisclosed
Scroll.media: Investors in The Fourth Law revealedVerified2025-08-19 - 2
Secured undisclosed strategic investment from Axon Enterprise, Feb 2026; TFL-AntiShahed deployed across 50+ Ukrainian units
Ukrainska Pravda: The Fourth Law secures Axon investmentVerified2026-02-16