R2 Wireless is an Austin, TX-based defense and security technology company focused on passive radio frequency (RF) spectrum sensing and situational awareness. Its platform silently monitors the entire RF spectrum to detect and geolocate transmissions from drones and other wireless devices without emitting signals or compromising privacy. The technology was originally developed in Israel’s high-threat environments and has since been deployed across Europe and the Middle East, proving its effectiveness in real-world scenarios. Key customer segments include the Department of War, public safety agencies, border security forces, and operators of critical infrastructure worldwide. With the latest financing, the company plans to accelerate U.S. expansion, adding engineering talent and forging new defense and commercial partnerships. R2 Wireless has raised a total of $13 million to date, reflecting steady investor support for its mission-critical security solutions.

Total raised

$5M

Funding rounds

1

Latest round

Equity

Latest activity

Mar 2026