• A European fund affiliated with The Riverside Company has been consistently expanding its platform investment in the Dastex Group through targeted add-on acquisitions since 2023
• The Hydroflex Group is a German distributor of cleanroom consumables
• RSM Ebner Stolz supported Riverside and the Dastex Group with a financial due diligence

Munich, May 21, 2025 - RSM Ebner Stolz has advised a European fund affiliated with The Riverside Company (Riverside) and its portfolio company Dastex Group (Dastex) on a financial due diligence in connection with an investment in Hydroflex Group GmbH incl. participations.

The Riverside Company is a globally active private equity company specializing in medium-sized growth companies. Since its foundation in 1988, Riverside has made more than 1,000 investments. The firm's international private equity and structured capital portfolios include more than 140 companies.

Hydroflex, founded almost 25 years ago and specializing in cleanrooms since 2009, is headquartered in Buseck, Germany. The company develops cleanroom products such as mops (PurMop®), wipes (PurWipe®), protective goggles (PurGuard®) and related equipment under its own brand. The company primarily supplies customers in the biotechnology sector as well as in laboratories, hospitals and in the automotive/semiconductor market. Hydroflex has an international presence and distributes its products in over 40 countries, including through sales and distribution centers in the USA and South Korea.

In mid-2023, Riverside acquired Dastex, a specialized distributor of cleanroom garments and consumables in Europe. Since then, Riverside has further expanded Dastex through a vigorous buy-and-build strategy and several acquisitions across Europe.

The acquisition of Hydroflex Group marks another step in building a leading European cleanroom contamination control platform that is well positioned to grow further organically and through acquisitions. Dastex serves the continuously growing cleanroom industry, helping customers in the pharmaceutical, life sciences, semiconductor and other high-tech industries to meet increasingly stringent quality and regulatory standards.

RSM Ebner Stolz supported the transaction on the buyer side by providing a financial due diligence.

RSM Ebner Stolz team: Joachim Hau (Project-responsible partner, Transaction Advisory Services), Jonathan Stern (Project management lead), Franz La Rosée, Florian von Grundherr (all Financial Due Diligence)

About RSM Ebner Stolz

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