25 August 2026
Stockholm, 2026-08-25 – Sertion continues its expansive growth journey through the acquisition of GA Rustfri. The acquisition strengthens Sertion’s industrial offering in Denmark and takes the Group another step forward in its development as a leading international infra- and installation partner within complex HVAC and sanitation, technical infrastructure and industrial piping.
GA Rustfri is a well-established Danish specialist in industrial process solutions, serving customers in the food, pharmaceutical and process industries. The company has built a strong reputation through its technical expertise, high-quality project execution and long-term customer relationships. Through the acquisition, GA Rustfri will strengthen Sertion’s capabilities within industrial infrastructure and broaden the Group’s offering in technically advanced environments.
– The acquisition of GA Rustfri is fully aligned with our long-term growth strategy. The company strengthens our organization with highly specialized expertise and broadens our capabilities within industrial process solutions. GA Rustfri’s technical expertise, entrepreneurial culture and strong customer relationships make the company an excellent addition to Sertion, says Andreas Bogren, CEO of Sertion.
– Joining Sertion gives us access to a broader international network and additional resources to continue developing our business. We look forward to combining our specialist expertise with Sertion’s long-term ambitions while continuing to deliver high-quality solutions to our customers, says Ralf Bramminge, CEO of GA Rustfri.
The acquisition is one of several strategic steps planned this year and a central part of Sertion’s ambition to grow with quality and capacity across the Nordic region and Northern Europe.
For more information, please contact:
Daniel Palmér
CMO, Sertion
daniel.palmer@sertion.com
+46 (0) 10 4586605
About GA Rustfri
Founded in 1987, GA Rustfri A/S is a Danish specialist contractor delivering custom stainless steel solutions, process equipment, and piping systems for demanding industrial sectors. The company manages complex projects from initial design and engineering to turnkey installation, testing, and full documentation. Combining skilled craftsmanship with modern industrial technology, GA Rustfri provides high-precision steelwork, tanks, specialized forging, and ongoing maintenance services for municipal and industrial clients.
About Sertion AB
Sertion is a group of expert companies within advanced pipework. Sertion’s focus is design, installation, and service of water, heating, sanitation systems, industrial piping, and energy gas solutions. Sertion is headquartered in Stockholm. The group has 1400 employees and a turnover of 4,2 billion SEK. Sertion secures the flow in buildings and businesses, enhancing efficiency, sustainability, and quality of life.


