Connectivity Technology for Tomorrow's Critical Infrastructure

To this day, ISOFLANGES is driven by the conviction that progress is born when technical ambition meets responsibility. In a rapidly changing energy landscape, we need connection technologies that anticipate future requirements—for hydrogen, CO₂, and other critical media.

With this commitment, ISOFLANGES develops and manufactures highly specialized insulated flange systems at its Winsen (Aller) facility—Made in Germany. When standard solutions are not sufficient, new custom-made systems are developed—for different diameters, higher pressures, corrosive media, or extreme operating conditions.

Customers include various utility companies, pipeline operators, and chemical and industrial companies. ISOFLANGES solutions provide cathodic corrosion protection, meet the highest testing and quality standards, and are already suitable for 100% hydrogen and CO₂ applications. At the same time, each application is designed specifically for the medium and use case—from kerosene to drinking water.

ISOFLANGES was among the first suppliers to offer insulating flanges certified for use with hydrogen. This marked the beginning for a company that not only solves technical challenges but also views them as a driving force for innovation.

With the entry of the investment firm Companion 2024, the company is scaling up in a targeted manner: increased capacity, a growing team, and a portfolio that is actively shaping the transformation of the energy infrastructure. In addition, ISOFLANGES will undergo a change in leadership at the end of 2026: Co-founder Claudia Suckut will leave the company at the end of the year. Going forward, Steffen Rathmann—who has already served as co-CEO alongside Claudia Suckut for two years—will take over sole leadership and continue the company’s growth trajectory.