Altamount acquires majority stake in Cybersense

Altamount Software GmbH has signed an agreement to acquire a majority stake in Cybersense GmbH, based in Dortmund. The transaction is subject to approval by the Federal Ministry for Economic Affairs and Climate Action(BMWK), which is expected in the second quarter of 2025.

Cybersense GmbH, headquartered in Dortmund, specialises in cybersecurity software solutions for organisations operating critical infrastructure. The company supports organisations in active threat detection, security analysis, and regulatory compliance. With deep expertise in IT risk analysis, incident response, and compliance, Cybersense is one of the fastest-growing providers in the IT security space across the German-speaking market.

The seller is concentrade GmbH, which has backed Cybersense since its founding. The two founders, Sebastian Struwe and Ralf Sturhan, will remain invested in the business and continue in their roles as Managing Directors to drive its ongoing development.

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Andreas Philippi, CEO of Altamount Software GmbH, comments:

"I extend a very warm welcome to the entire Cybersense team to the Altamount Group. What Sebastian and Ralf and their team have built over the past years is truly remarkable — technically strong, with a clear focus on IT security for critical infrastructure organisations. We are very pleased that both founders are staying on board to help take the company forward together with us."

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With this acquisition, Altamount will also deepen its collaboration withGBS Europa GmbH — the leading provider of email security solutions for regulated industries and critical infrastructure, made in Germany.

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Dr. Thomas Bruse, Prokurist and SVP Sales & Marketing at GBS EuropaGmbH, states:

"The solutions of GBS and Cybersense complement each other perfectly in the area of attack and intrusion detection. This allows us to position ourselves in an even more customer-centric way, enabling our clients to benefit from an even more powerful portfolio for defending against cyberthreats. The expertise we have in highly regulated industries and critical infrastructure will come together to form a unique new solution portfolio."

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Sebastian Struwe, founder and Managing Director of Cybersense GmbH,adds:

"In Altamount, we have found exactly the partner we were looking for at this next stage of our development — entrepreneurial, decentralised, and with a long-term orientation. The collaboration with GBS is also a perfect fit —we believe strongly in the shared potential."

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Ralf Sturhan, founder and Managing Director of Cybersense GmbH, says:

"We see the Altamount Group as an excellent platform to further develop Cybersense and to more closely connect our solutions with other software providers in the critical infrastructure space. This combination is unique in the market — and we are excited to now be part of it."

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