Tenna secures $13.5M to chart the electromagnetic battlefield
US defence technology startup Tenna has raised $13.5 million in fresh funding to build advanced mapping tools that reveal hidden electromagnetic threats facing US and allied forces. The capital will support systems that visualise how radar, communications and jamming signals interact across complex, contested environments.
While modern militaries increasingly rely on the electromagnetic spectrum for everything from navigation to weapons guidance, commanders often lack a clear, real-time picture of how those signals behave in the field. Tenna aims to close that gap with software that fuses sensor data, geospatial intelligence and AI algorithms into dynamic threat maps.
Building a new layer of situational awareness
The company’s platform is designed to help planners and operators understand where hostile jammers, emitters and surveillance systems may degrade or expose friendly forces. By modelling how waves travel over terrain, through urban areas and in changing weather, Tenna claims its tools can highlight vulnerabilities before troops are put at risk.
Such capability is increasingly critical as potential adversaries invest heavily in electronic warfare and long-range precision weapons. Detailed maps of the electromagnetic environment can guide decisions on where to position assets, how to route aircraft and which communication channels are most resilient under attack.
Supporting US and allied defence strategies
The new funding underscores growing interest from the US Department of Defense and partner nations in software-first approaches to the spectrum fight. Rather than relying solely on new hardware, militaries are seeking data-driven tools that can be rapidly updated and deployed across multiple platforms.
Tenna plans to expand its engineering teams, deepen integration with existing command-and-control systems and run more field trials with US and allied units. If successful at scale, its mapping technology could become a core component of how Western forces plan, train and operate in future conflicts where control of the electromagnetic spectrum is as decisive as control of land, sea or air.