The Fourth Law is a robotics autonomy company
Autonomous robots will transform dozens of multi-trillion dollar industries over the next 10 years.
But now is the time to focus on defense.
We bring together leading engineers, scientists, and managers to strengthen the defense capabilities of Ukraine and the Free World.
Our first products are autonomy systems for FPV drones and autonomous drones that are already defending our country.
TFL-1
Terminal Guidance and Cruise
– AI tracks the target’s outline and guides the drone to its center
– The highest hit rate among similar systems
– Integrated with FPV drones from major manufacturers
– NATO-codified
Lupynis-10-TFL-1
First-level autonomy FPV
– Strong 10-inch drone with autonomy
– 30 km+ with 1 kg of payload
– We modify the characteristics according to the needs of the end-user
– NATO-codified
TFL-1 autonomy modules
Terminal guidance & cruise
– AI tracks the target’s outline and guides the drone to its center
– The highest hit rate among similar systems
– Integrated with FPV drones from major manufacturers
Application
– Invulnerable to electronic warfare
– Ignores the radio horizon
– Increases pilot efficiency
– Cruise mode helps to pass the “curtain” jamming
Features
– Pilot training in 10 seconds
– Cryptographic protection
– Target refinement mode
– Integrated with MilBeta, CrashDetect
Estimated prices in Ukraine
– TFL-1 twilight camera: 150 USD
– TFL-1 night camera-256: 340 USD
– TFL-1 night camera-640: 620 USD
Learn more about LWIR cameras Kurbas and Caddx from our partners with Odd Systems
Application
– Invulnerable to electronic warfare
– Ignores the radio horizon
– Increases pilot efficiency
– Cruise mode helps to pass the “curtain” jamming
Basic equipment
– Pilot training in 10 seconds
– Cryptographic protection
– Target refinement mode
– Integrated with MilBeta, CrashDetect
Estimated prices in Ukraine
– TFL-1 twilight camera: 150 USD
– TFL-1 night camera-256: 340 USD
– TFL-1 night camera-640: 620 USD
Learn more about LWIR cameras Kurbas and Caddx from our partners with Odd Systems
Lupynis-10-TFL-1
First-level autonomy FPV
– Strong 10-inch drone with autonomy
– 30 km+ with 1 kg of payload
– We modify the characteristics according to the needs of the end-user
– Codified, has a NATO code
Application
– Invulnerable to electronic warfare
– Ignores the radio horizon
– Increases pilot efficiency
– Cruise mode helps to pass the “shutter”
Basic equipment
– Frame: 10’’ thick carbon
– Connectivity: whatever works best
– Working payload: up to 4 kg
– Battery: 6s3p, 20,000 mAh
Estimated prices in Ukraine
– Lupynis-10-TFL-1 daytime & twilight camera: 480 USD
– Lupynis-10-TFL-1 night camera-256: 670 USD
– Lupynis-10-TFL-1 night camera-640: 960 USD
Learn more about LWIR cameras Kurbas from our partners with Odd Systems
Application
– Invulnerable to electronic warfare
– Ignores the radio horizon
– Increases pilot efficiency
– Cruise mode helps to pass the “shutter”
Basic equipment
– Frame: 10’’ thick carbon
– Connectivity: whatever works best
– Working payload: up to 4 kg
– Battery: 6s3p, 12,000 mAh
Estimated prices in Ukraine
– Lupynis-10-TFL-1 twilight camera: 480 USD
– Lupynis-10-TFL-1 night camera-256: 670 USD
– Lupynis-10-TFL-1 night camera-640: 960 USD
Learn more about LWIR cameras Kurbas and Caddx from our partners with Odd Systems
Zerov-8
Autonomous interceptor
– An aerial target interceptor with intelligent detection
– Detects targets at distances 2–3× greater than comparable systems
– Up to 326 km/h speed for intercepting high-speed UAVs
Application
– Interception of hostile UAVs such as Shahed
– AI-based detection of targets in thermal imagery
– Highlights and stably tracks the target for the pilot
– Provides more time and distance for interception
Specifications
– Maximum speed: 326 km/h
– Target speed for interception: up to 270 km/h
– Combat radius: up to 20 km
– Flight time: up to 20 min
– Warhead: up to 0.5 kg
– Camera: daylight or thermal
– Detection range: up to 1 km (up to 300 m in difficult conditions)
Application
– Invulnerable to electronic warfare
– Ignores the radio horizon
– Increases pilot efficiency
– Cruise mode helps to pass the “shutter”
Basic equipment
– Frame: 10’’ thick carbon
– Connectivity: whatever works best
– Working payload: up to 4 kg
– Battery: 6s3p, 12,000 mAh
Estimated prices in Ukraine
– Lupynis-10-TFL-1 twilight camera: 480 USD
– Lupynis-10-TFL-1 night camera-256: 670 USD
– Lupynis-10-TFL-1 night camera-640: 960 USD
Learn more about LWIR cameras Kurbas and Caddx from our partners with Odd Systems
Ongoing projects
Autonomy levels
– TFL-1: last mile and cruise
– TFL-2: bombing and cruise
– TFL-3: autonomous target selection
– TFL-4: navigation
– TFL-5: full autonomy
Application scenarios
– Against ground targets
– Against ISR air targets
– Against FPV air targets
– Against Deep Strike air targets
– Drone carrier platforms
Infrastructure
– Simulation
– Analytics for simulation
– Fleet management system
Platforms
– Copter
– Fixed wing
– Missile
Ongoing projects
Autonomy levels
– TFL-1: last mile and cruise
– TFL-2: bombing and cruise
– TFL-3: autonomous target selection
– TFL-4: navigation
– TFL-5: full autonomy
Application scenarios
– Against ground targets
– Against ISR air targets
– Against FPV air targets
– Against Deep Strike air targets
– Drone carrier platforms
Infrastructure
– Simulation
– Analytics for simulation
– Fleet management system
Platforms
– Copter
– Fixed wing
– Missile
December 2024, Volodymyr Zelenskyy and Olaf Scholz inspect products by The Fourth Law at a special event
Get involved
We are actively looking for exceptional professionals, defense procurement offices, and investors to strengthen the defense of Ukraine and the Free World, and to build the next generation of robotic systems.
R&D requires significant funding. Every dollar we earn is reinvested to create better products.
Work with us
– Engineers and scientists
– Business development managers
– Recruiters, logisticians, collectors, and everyone who wants to work
Order our products
– Military units and brigades
– Government buyers and Charitable foundations
– Drone manufacturers
Invest in our R&D
– Investors
– Companies with co-development funding
– Grantors
– Philanthropists
December 2024, Volodymyr Zelenskyy and Olaf Scholz inspect products by The Fourth Law at a special event
News
The Fourth Law Unveils Zerov-8: A Game-Changing Autonomous Interceptor Against Shaheds
Ukrainian defense company The Fourth Law has officially introduced the Zerov-8, an autonomous interceptor designed to effectively counter enemy unmanned aerial vehicles (UAVs).
The Fourth Law and Odd Systems Host "Autonomy and Sovereignty" Event in Kyiv to Redefine the Future of Defense Tech
On February 26, the companies The Fourth Law and Odd Systems held "Autonomy and Sovereignty," a closed-door event in Kyiv for key industry stakeholders.
The Fourth Law Secures Strategic Investment to Accelerate Drone AI Development for Ukraine
The Fourth Law (TFL), a Kyiv-headquartered defense technology company, has secured a new round of funding backed by Axon (Nasdaq: AXON), the US public safety technology group.
The Lupynis-10-TFL-1 Autonomous Drone Is Available on DOTChain and Brave1 Market
The flagship Lupynis-10-TFL-1 drone with terminal guidance is now available on the DOTChain and Brave1 Market platforms. Military units can purchase the UAV using E-points, and for each successful target engagement carried out by drones equipped with the terminal guidance system, service members receive an additional E-point.
VYRIY PRO 10 drones with terminal guidance system TFL-1 now available on DOT-Chain by the Defense Procurement Agency and Brava1 Market with E-Points
VYRIY FPV drones equipped with the terminal guidance system developed by The Fourth Law are now available for procurement on DOT-Chain by the Defense Procurement Agency and for purchase under the Army of Drones.Bonus program on Brave1 Market.
Vyriy and The Fourth Law launch mass production of autonomous drones
Kyiv, Ukraine; 15 September 2025 – Vyriy, one of Ukraine’s largest drone manufacturers, and The Fourth Law, a leading Ukrainian developer of autonomy systems, announced the start of mass production of drones with terminal guidance.
Lupynis-10-TFL-1 and Autonomy Module TFL-1 received NATO codification
Kyiv, Ukraine; 1 September 2025 – UAS Lupynis-10-TFL-1 and Module TFL-1 are already codified by National Guard of Ukraine and Ukrainian Ministry of Defense
The Fourth Law, makers of massively scalable AI systems for FPV drones, announces its first round of funding and unveils its flagship product TFL-1
Kyiv, Ukraine; 10 July 2025 – The Fourth Law (TFL / Четвертий Закон), a defense tech company headquartered in Kyiv, Ukraine today announced that it raised funding from a group of venture funds...
The Fourth Law Unveils Zerov-8: A Game-Changing Autonomous Interceptor Against Shaheds
Ukrainian defense company The Fourth Law has officially introduced the Zerov-8, an autonomous interceptor designed to effectively counter enemy unmanned aerial vehicles (UAVs).
The Fourth Law and Odd Systems Host "Autonomy and Sovereignty" Event in Kyiv to Redefine the Future of Defense Tech
On February 26, the companies The Fourth Law and Odd Systems held "Autonomy and Sovereignty," a closed-door event in Kyiv for key industry stakeholders.
The Fourth Law Secures Strategic Investment to Accelerate Drone AI Development for Ukraine
The Fourth Law (TFL), a Kyiv-headquartered defense technology company, has secured a new round of funding backed by Axon (Nasdaq: AXON), the US public safety technology group.
The Lupynis-10-TFL-1 Autonomous Drone Is Available on DOTChain and Brave1 Market
The flagship Lupynis-10-TFL-1 drone with terminal guidance is now available on the DOTChain and Brave1 Market platforms. Military units can purchase the UAV using E-points, and for each successful target engagement carried out by drones equipped with the terminal guidance system, service members receive an additional E-point.
VYRIY PRO 10 drones with terminal guidance system TFL-1 now available on DOT-Chain by the Defense Procurement Agency and Brava1 Market with E-Points
VYRIY FPV drones equipped with the terminal guidance system developed by The Fourth Law are now available for procurement on DOT-Chain by the Defense Procurement Agency and for purchase under the Army of Drones.Bonus program on Brave1 Market.
Vyriy and The Fourth Law launch mass production of autonomous drones
Kyiv, Ukraine; 15 September 2025 – Vyriy, one of Ukraine’s largest drone manufacturers, and The Fourth Law, a leading Ukrainian developer of autonomy systems, announced the start of mass production of drones with terminal guidance.
Lupynis-10-TFL-1 and Autonomy Module TFL-1 received NATO codification
Kyiv, Ukraine; 1 September 2025 – UAS Lupynis-10-TFL-1 and Module TFL-1 are already codified by National Guard of Ukraine and Ukrainian Ministry of Defense
The Fourth Law, makers of massively scalable AI systems for FPV drones, announces its first round of funding and unveils its flagship product TFL-1
Kyiv, Ukraine; 10 July 2025 – The Fourth Law (TFL / Четвертий Закон), a defense tech company headquartered in Kyiv, Ukraine today announced that it raised funding from a group of venture funds...
The Fourth Law Unveils Zerov-8: A Game-Changing Autonomous Interceptor Against Shaheds
Ukrainian defense company The Fourth Law has officially introduced the Zerov-8, an autonomous interceptor designed to effectively counter enemy unmanned aerial vehicles (UAVs).
The Fourth Law and Odd Systems Host "Autonomy and Sovereignty" Event in Kyiv to Redefine the Future of Defense Tech
On February 26, the companies The Fourth Law and Odd Systems held "Autonomy and Sovereignty," a closed-door event in Kyiv for key industry stakeholders.
The Fourth Law Secures Strategic Investment to Accelerate Drone AI Development for Ukraine
The Fourth Law (TFL), a Kyiv-headquartered defense technology company, has secured a new round of funding backed by Axon (Nasdaq: AXON), the US public safety technology group.
The Lupynis-10-TFL-1 Autonomous Drone Is Available on DOTChain and Brave1 Market
The flagship Lupynis-10-TFL-1 drone with terminal guidance is now available on the DOTChain and Brave1 Market platforms. Military units can purchase the UAV using E-points, and for each successful target engagement carried out by drones equipped with the terminal guidance system, service members receive an additional E-point.
VYRIY PRO 10 drones with terminal guidance system TFL-1 now available on DOT-Chain by the Defense Procurement Agency and Brava1 Market with E-Points
VYRIY FPV drones equipped with the terminal guidance system developed by The Fourth Law are now available for procurement on DOT-Chain by the Defense Procurement Agency and for purchase under the Army of Drones.Bonus program on Brave1 Market.
Vyriy and The Fourth Law launch mass production of autonomous drones
Kyiv, Ukraine; 15 September 2025 – Vyriy, one of Ukraine’s largest drone manufacturers, and The Fourth Law, a leading Ukrainian developer of autonomy systems, announced the start of mass production of drones with terminal guidance.
Lupynis-10-TFL-1 and Autonomy Module TFL-1 received NATO codification
Kyiv, Ukraine; 1 September 2025 – UAS Lupynis-10-TFL-1 and Module TFL-1 are already codified by National Guard of Ukraine and Ukrainian Ministry of Defense
The Fourth Law, makers of massively scalable AI systems for FPV drones, announces its first round of funding and unveils its flagship product TFL-1
Kyiv, Ukraine; 10 July 2025 – The Fourth Law (TFL / Четвертий Закон), a defense tech company headquartered in Kyiv, Ukraine today announced that it raised funding from a group of venture funds...
They use our products
They cooperate with us
The Fourth Law / TFL / Четвертий Закон
We work for those who protect us
Also visit our sister company Odd Systems. They produce thermal cameras and FPV drones
Solutions
Against ground targets
Copter
In Progress
TFL-2: Bombing and Cruise
TFL-3: Autonomous Target Selection
TFL-4: Navigation
TFL-5: Full Autonomy
In Progress
Anti-air — ISR
Anti-air — FPV
Anti-air — Deep Strike
Drone carrier platforms
Simulation
Analytics for Simulation
Fleet Management System
Fixed wing
Missile
For media
The Fourth Law / TFL / Четвертий Закон
We work for those who protect us
In Progress
TFL-2: Bombing and Cruise
TFL-3: Autonomous Target Selection
TFL-4: Navigation
TFL-5: Full Autonomy
Simulation
Analytics for Simulation
Fleet Management System
Solutions
Against ground targets
Copter
In Progress
Anti-air — ISR
Anti-air — FPV
Anti-air — Deep Strike
Drone carrier platforms
Fixed wing
Missile
Also visit our sister company Odd Systems. They produce thermal cameras and FPV drones
The Fourth Law / TFL / Четвертий Закон
We work for those who protect us
Solutions
Against ground targets
Copter
In Progress
TFL-2: Bombing and Cruise
TFL-3: Autonomous Target Selection
TFL-4: Navigation
TFL-5: Full Autonomy
In Progress
Anti-air — ISR
Anti-air — FPV
Anti-air — Deep Strike
Drone carrier platforms
Simulation
Analytics for Simulation
Fleet Management System
Fixed wing
Missile
For media
Also visit our sister company Odd Systems. They produce thermal cameras and FPV drones