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Guardian RF: passive RF sensors detect, locate, and classify drones for force protection and critical infrastructure defense.
Guardian RF has raised $500K across 1 funding round.
Key people at Guardian RF.
Guardian RF was founded in 2024 by Eli Kerstein (Founder) and John Andrzejewski (Founder) and Lucas Raskin (Founder).
Guardian RF has raised $500K in total across 1 funding round.
Guardian RF, based in Washington, DC, develops passive radio-frequency sensors for detecting, locating, and classifying unmanned aerial systems to enhance force protection and critical infrastructure defense. The company operates with a team of 6 employees and secured a $1,195,000 Direct-to-Phase II SBIR contract from AFWERX for securing low-altitude airspace. Its platform converts drone activity into structured digital events, with products deployed at the 30th Security Forces Squadron at Vandenberg Space Force Base and with local and state law enforcement. Guardian RF's technology is also utilized by the U.S. Space Force and Air Force, and the company has received investment from Space Capital. Founded in 2024, Guardian RF was established by Lucas Raskin, John Andrzejewski, and Eli Kerstein.
Key people at Guardian RF.
Guardian RF develops passive, radiofrequency-based drone detection systems aimed at enhancing US defense and national security, particularly for force protection and critical infrastructure defense. Their technology detects and classifies drone control signals from various manufacturers at standoff ranges, supporting integration with operational APIs for live monitoring and threat alerting. Their products are deployed by military units such as the 30th Security Forces Squadron at Vandenberg Space Force Base, local and state law enforcement, and commercial security operations[1][3].
Founded by physics and foreign service students from Georgetown University, Guardian RF leverages advanced signal processing to address the growing threat of drone-enabled attacks on homeland infrastructure. Their systems, including the handheld Scout sensor and the Mosaic distributed mesh network, provide scalable, cost-effective, and passive drone detection solutions hardened for real-world deployment. The company has gained traction through defense hackathons, SBIR contracts, and frontline deployments in Ukraine, demonstrating growth momentum and operational validation[1][2][3].
Guardian RF was founded in 2024 by Georgetown University students Lucas Raskin, John Andrzejewski, and Eli Kerstein, who initially collaborated on a drone detection software project during a defense technology hackathon in El Segundo, California. Despite competing against teams from top technical schools, their underdog project reached the finals, sparking the decision to commercialize their technology. They expanded their team with classmates from the School of Foreign Service and applied to Y Combinator to accelerate development, pivoting from software to hardware to meet commercialization needs[2].
The founders’ backgrounds in physics and foreign service shaped their approach to counter-UAS technology. Early traction came from winning the hackathon and securing an AFWERX Direct-to-Phase-II SBIR contract, followed by deployments with US military units and law enforcement. Their experience embedded with Ukrainian troops during the conflict provided critical real-world data and validation, accelerating product refinement and deployment in combat conditions[3].
Guardian RF operates at the intersection of rising drone threats and the urgent need for scalable counter-UAS solutions. The proliferation of drones with potential for malicious use against critical infrastructure and public safety has created a growing market for real-time detection and defense technologies. Their passive RF approach aligns with trends favoring low-power, covert, and networked sensor systems that can operate in contested electromagnetic environments.
The timing is critical as drone-enabled attacks increase globally, and traditional radar or active detection systems face limitations in cost, deployment speed, and stealth. Guardian RF’s technology supports a shift toward decentralized, adaptable battlefield intelligence and homeland security, influencing how military, law enforcement, and commercial sectors approach drone threat mitigation[1][3].
Guardian RF is poised to expand its footprint in US defense and national security with continued product refinement and broader adoption by military and civilian agencies. Future trends shaping their journey include the increasing sophistication of drone threats, regulatory changes around drone identification, and the growing demand for integrated, multi-domain situational awareness systems.
Their influence may evolve from a niche counter-UAS provider to a foundational player in layered defense architectures, combining passive RF detection with other sensor modalities and AI-driven threat analysis. Continued partnerships with defense agencies and frontline deployments will likely drive innovation and market expansion, reinforcing their role in securing critical infrastructure and public safety against emerging drone threats[1][3].
Guardian RF was founded in 2024 by Eli Kerstein (Founder) and John Andrzejewski (Founder) and Lucas Raskin (Founder).
Guardian RF has raised $500K in total across 1 funding round.
Guardian RF's investors include Y Combinator.
Guardian RF has raised $500K across 1 funding round. Most recently, it raised $500K Seed in May 2024.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| May 1, 2024 | $500K Seed | Y Combinator |