Transaction strengthens focus on energy management solutions and services

Hager Group has successfully completed the divestment of its smoke detector business unit (Hager Safety) to QCP Quantum Capital Partners GmbH (QCP). The transaction marks a further step in strengthening Hager Group’s focus in the business areas energy distribution and energy management solutions and services. Following the successful transaction, Hager Safety will henceforth appear as Sieben-S GmbH in the market, jointly with its French subsidiary Sept-S SAS.

Sieben-S GmbH (formerly Hager Safety) specializes in safety devices with a comprehensive portfolio of high-performance smoke detectors aimed at Original Equipment Manufacturers (OEM), service providers, and wholesalers for the residential market in Europe. 

QCP, a manager of funds headquartered in Munich (Germany), acquired all assets of the Hager Safety business by funds managed by QCP. The transaction received all social, mandatory, and regulatory approvals and is effective on the 2nd of June 2025.


Hager Group continues to offer the smoke protector portfolio under the Hager brand across all its European markets. The ordering and return processes and points of contact remain unchanged.   

Sabine Busse, CEO of Hager Group: “This is an important step to systematically align our portfolio towards our strategic priorities in energy distribution and energy management solutions and services. With QCP Quantum Capital Partners, we have found a strong partner to sustainably continue developing the smoke detector business unit with a long-term expertise in acquiring corporate carve-outs. Importantly, Hager Safety employees will remain in their roles under the current leadership team, ensuring continuity and stability during the transition.”  

Steffen Görig, CEO of QCP Quantum Capital Partners: “We are excited to support Sieben-S in its next phase of growth and to develop the company as an independent, leading player in the market. Sieben-S is widely recognized for its expertise in the safety-critical residential smoke detector market, particularly within the service provider segment in Germany. Jointly with the local management, we are committed to further enhancing the respective product innovation and reliability of Sieben-S and expanding its presence across Europe — especially through the new upcoming Evergreen platform.”