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FORUM acquires 100% of Innseals Dichtungstechnik

FORUM acquires 100% of Innseals Dichtungstechnik

May 8, 2025

FORUM erwirbt 100% der Innseals Dichtungstechnik – Logo

FORUM acquires Innseals Dichtungstechnik AG

FORUM Family Office ("FORUM") has acquired 100% of the shares in Innseals Dichtungstechnik GmbH, based in Ried/Innkreis, Austria, via its industry holding company FORUM Industrie & Service GmbH.


Innseals was founded in 2016 by Daniel Geroldinger to develop and sell special seals for demanding industrial applications. Today, the company is a problem solver for customer-specific seals based on high-performance materials. Innseals' seals are used in a wide variety of applications, including the semiconductor industry, the food industry and hydrogen electrolysis. Typical are small and medium series. The company generates sales of approximately € 3 million and has been growing at a double-digit rate for many years. The jointly developed continuation concept envisages a continuation of the corporate strategy in all essential points. In particular, all employees and the location will be retained. Growth is to be maintained at a minimum; to this end, the company will further expand its marketing and sales activities and strengthen its internationalization. Mr. Geroldinger will hand over the management to a successor with a technical background from September 1, 2025, so that the focus on problem-solving competence will be maintained. He will continue to support his successor as a consultant over the next few years in order to ensure a complete transfer of know-how, his comment:

“After 10 years of building the company, I decided to choose the FORUM Group as the acquirer and strategic partner for Innseals Dichtungstechnik GmbH. The Forum Group, with its principles (Decentralized, Entrepreneurial, Long-term) and entrepreneurial knowledge in combination with the specialized product and industry knowledge of the Innseals team, will successfully take the company to the next level and ensure the further growth of Innseals Dichtungstechnik GmbH in my sense.“

Daniel Geroldinger, founder of Innseals Dichtungstechnik GmbH

FORUM invests the assets of a Munich family in medium-sized companies. FORUM's principles in the area of Family Equity are: permanent, decentralized, entrepreneurial - completely different from financial investors. This approach has already convinced 38 entrepreneurs to entrust FORUM with their life's work.

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