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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

Founders1

Investors0

No linked records yet.

Cap table0

Approximate ownership by holder. Indexed holders link to their records.

No disclosed ownership for this round
HolderInstrumentOwnership

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.

Tags

Sources & citations2

Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.

  1. 1

    Seed round co-led by HPI Ventures and Caesar Ventures, amount undisclosed

    Scroll.media: Investors in The Fourth Law revealed
    Verified2025-08-19
  2. 2

    Secured undisclosed strategic investment from Axon Enterprise, Feb 2026; TFL-AntiShahed deployed across 50+ Ukrainian units

    Ukrainska Pravda: The Fourth Law secures Axon investment
    Verified2026-02-16