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July 16, 2025

Lakestar and Balderton back IoT cybersecurity startup Exein in €70m raise

On-device security startup plots global expansion following fresh fundraise

Martin Coulter

2 min read

Exein, an Italian startup providing cybersecurity for “internet of things” (IoT) devices, just raised €70m in a Series C funding round, led by Balderton. 

With more and more IoT devices available, including everything from smartwatches to internet-connected fridges and thermostats, the potential for hackers to steal sensitive data or hold them to ransom is on the rise. 

The big selling point of Exein’s so-called “digital immune system” is that it’s deployed entirely on-device, rather than relying on any centralised cloud service, making it harder for external threats to penetrate.  

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Exein's €70m fundraise bucks the trend of Italian startups struggling to secure big investments in 2025. While the number of deals struck in Italy has risen, only 10 other companies have raised at least €10m this year, according to Sifted data

Having signed partnerships with leading chipmakers and manufacturers like Supermicro, Mediatek and Kontron, Exein currently provides security for more than 1bn devices around the world. 

With the backing of top European VC firm Balderton with backing from Lakestar, the company plans to use the fresh funding to strengthen its presence in Europe while expanding into the US and parts of Asia. 

“As critical infrastructure becomes increasingly software-defined and networked, the risks multiply, especially with AI enabling attackers to hit more targets faster than ever before,” says Elena Moneta, principal at Balderton.

“The microwave on a military ship, or the smart fish tank in a hospital waiting room, any one of these could be exploited to compromise the entire network,” she adds. “Exein tackles this threat where it begins: on the device itself, embedding real-time security on the edge.”

Supernova, United Ventures, 33N and Partech also participated in the round.

Martin Coulter

Martin Coulter is Sifted's news editor, based in London. You can follow him on LinkedIn and X

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