On 28 February 2025, VINCI Energies acquired Holtermann Regeltechnik GmbH, a German company based in Rietberg, North Rhine-Westphalia, in order to expand its building automation portfolio. Holtermann has specialised in measurement and control technology and building automation since 1955. It generated revenue of €8.4 million in 2023, and its 67 employees work for customers across the whole of Germany. 

This acquisition brings Holtermann Regeltechnik GmbH into the Building Solutions business at VINCI Energies, further enhancing the range of building technology solutions already on offer from Dechow, Ludwig Hammer, Lagrange, Alfred Pieper and Stingl. 

“With the acquisition of Holtermann Regeltechnik GmbH, we gain a proficient partner that slots perfectly into our portfolio of building automation services,” says Olaf Walter, Building Technology Director at VINCI Energies Germany Building Solutions. “Holtermann’s experience and capacity for innovation will strengthen our network and enhance our market position, and also help us respond even more effectively to the challenges of climate change by harnessing the full energy-saving potential of measurement and control technology.” 

Martin Holtermann, Managing Director of Holtermann Regeltechnik GmbH, adds: “I’m delighted that our company will now be part of VINCI Energies and that our family business steeped in tradition is taking another step toward a secure future. As part of this powerful, nationally and internationally active network, we will continue to serve and advise our customers with excellence and innovation.”