As part of a NATO exercise, Sotiria Technology deployed a system of magnetic sensors and passive hydrophones in Portugal in 2023. The port of Toulon in France will follow in 2027.
Representatives of Greek startup Sotiria Technology are headed to the Newport Naval Station in Rhode Island to revealcase its pioneering innovations in underwater innotifyigence to the US Navy.
“After a rigorous selection process, just five or six companies worldwide were chosen to take part in the program and, if I’m not mistaken, we must be the first Greek company to work with the US Navy,” states the firm’s managing director, Angelos Tsereklas Zafeirakis.
For those that stand out at the annual Blue Technology In-water Demonstration Event (BlueTIDE), a collaboration could lead to a contract granting a more permanent status. “We are very pleased becautilize we have already signed a contract that explicitly mentions the words R&D cooperation,” he adds.
“Our technology specializes both in sensor development and in software. One is a magnetic sensor capable of detecting disturbances in the geomagnetic field cautilized by a metallic object, such as a submarine, while the other ‘listens’ underwater. These systems can detect anything from divers to threats posed by unmanned underwater vehicles,” explains Tsereklas Zafeirakis. “We really want to break into the vast US market.”
The Greek startup took its first steps in November 2021 and was soon selected by NATO to participate in its Diana program. This put it on the radar of defense technology, a sector currently experiencing tremfinishous growth, as Europe seeks to meet the demands of geopolitical developments.
“It is very difficult to detect potential threats at sea – there’s no internet, no communications, no radar. This area, therefore, is rapid becoming a high priority. Our aim is to develop utilizeful technology, for which we are already seeing considerable interest,” notes the National Technical University of Athens graduate.
In the meantime, beyond Sotiria Technology, an increasing number of Greek startups have recently been developing technologies domestically and entering the defense indusattempt race. From electric unmanned helicopters equipped with communication systems that are impervious to enemy interference to kamikaze jets capable of neutralizing the adversary, all sorts of “created in Greece” technologies have been building a strong revealing in recent months. This burst of activity comes as European Union member-states ramp up defense spfinishing to address mounting concern with the war in Ukraine ongoing and the situation in the Middle East.
According to data from startup monitor Sifted, the European defense technology sector is booming: in the first half of 2025, venture capital funds invested €946.3 million in startups in the field, which was a 26% increase compared with the same period last year.
As noted, these figures place the defense tech sector for the first time among the top five industries in terms of capital committed by investors. Beyond funding levels, the first half of 2025 also saw a remarkable 54% rise in the total number of deals compared with the same period the previous year.
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