The companies say the venture is aimed at authorities and critical infrastructure operators, giving them real-time situational awareness and the ability to detect and track drones across a wider area by using infrastructure that already exists.
“Both the public and private sectors in Finland and Estonia have identified a need to strengthen the countries’ drone detection capabilities,” says Topi Manner, CEO of Elisa.
Below the surface, Elisa’s cable listens for anchors
Masthead is not Elisa’s first use of its own network for security detection. In June, Elisa, the Finnish Border Guard and the Finnish Navy tested a system that turns its submarine cable in the Gulf of Finland into an acoustic sensor, able to detect a ship dragging its anchor. Like Masthead, it is being built into a service for authorities and critical infrastructure owners.
“Our goal is to use the early warning system to alert the authorities even before the first damage occurs,” said Jouni Petrow, Elisa’s Director, New Business, in June.
Sensofusion joins the venture newly listed and with its first CTO
Sensofusion is newly listed. Its shares began trading on Nasdaq Helsinki on 9 October as a Large Cap company, in what Nasdaq Helsinki called one of the largest IPOs in Helsinki in 20 years.
Sensofusion, whose Airfence products detect, locate and neutralise drones for authorities, armed forces and critical infrastructure operators, named Samuli Nyman as its first Chief Technology Officer on 26 October. Nyman, who joined in 2025, is responsible for technology strategy and the development of the Airfence product family.
“Together with Elisa, we can deploy this capability through existing digital infrastructure and extend its reach across Finland and Estonia,” says Tuomas Rasila, CEO of Sensofusion.
