Tenna Systems, a defense technology company developing software-based spectrum intelligence tools, has raised an oversubscribed $13.5 million seed funding round led by Costanoa, with participation from Viola Ventures, Fresh Fund, 202 Ventures and existing investors. The funding will support Tenna’s expansion in the U.S. defense market, where the company is working with government agencies and prime contractors to deploy software-based spectrum intelligence for wireless-dependent systems.
The investment comes as defense, navigation, electronic warfare and autonomous systems face growing risks from connectivity gaps and Radio Frequency Interference (RFI), including jamming and spoofing. Tenna’s platform aggregates data from existing sensors to create a real-time operational map of the electromagnetic spectrum. The system turns aircraft, drones, satellites, ships and mobile devices into live sensors, enabling operators to identify interference within 50 to 200 meters without the need for additional hardware.
"Much like AccuWeather but for electronic warfare, our software transforms the blizzard of sensor data into a real-time map of Radio Frequency (RF) domains. This gives our partners a ground truth in navigating the electromagnetic spectrum," said Avner Bendheim, co-founder and CEO at Tenna. "Agility is everything in the evolving world of the electromagnetic spectrum. While traditional solutions demand costly infrastructure rollouts and custom sensors, we provide a hardware-free solution that is as essential as any other mission-critical tool."
Tenna was founded by twin brothers Avner and Gabriel Bendheim. The founders previously led signals intelligence (SIGINT) and electronic warfare programs before developing a software-based system designed to use existing signal emitters to monitor and protect wireless systems in congested spectrum environments.
The company offers three products:
- Arena for real-time monitoring of radio frequency coverage gaps and interference.
- Tracer for locating interference sources and enabling mitigation.
- Halo embedded software “armor” enabling operational continuity and RF resilience.
"Tenna's founding team brings a rare mix of operational, technical, and commercial expertise," said Greg Sands, Founder and Managing Partner at Costanoa. "We believe Tenna is advancing a new era of spectrum intelligence to protect connectivity across all domains. It has the power to transform how defense partners secure wireless systems, ensuring readiness and resilience on a global scale."
Tenna is engaged with the U.S. Army, U.S. Air Force and other federal defense agencies on spectrum intelligence programs for wireless systems. The company also reports operational deployments with electronic warfare and SIGINT units in allied defense forces. It plans to more than double its headcount over the next 12 months as it scales operations.
Click here to learn more about Tenna Systems.
