Rautenberg & Company advises SPIE on the acquisition of SD Fiber.

Our team supported SPIE Germany Switzerland Austria in the acquisition of SD Fiber. Signing of the transaction took place in July 2025, with closing expected shortly.

SPIE Germany Switzerland Austria is a subsidiary of SPIE Group and the leading European multi-technical service provider for buildings, systems and infrastructures. With its broad expertise in and enthusiasm for technical services, SPIE is committed to a climate-friendly and digital future together with its customers. With this acquisition, SPIE strengthens its service offering and fibre transition expertise in Switzerland and Germany.

SD Fiber is a specialist in the deployment of fibre optic networks to the street (FTTS), to the building (FTTB) and to the home (FTTH). The company offers turnkey solutions covering the entire value chain, from planning, civil engineering and installation to commissioning, maintenance and troubleshooting. In addition, SD Fiber is active in the field of smart metering, installing digital electricity meters that serve as a key enabler for intelligent energy consumption management.

Our team supported SPIE Germany Switzerland Austria in the acquisition with a Commercial Due Diligence.