SealteQ

SealteQ specializes in the protection and maintenance of concrete and steel structures in infrastructural and industrial buildings, as well as residential and commercial construction. Since 2024, the company has been part of Quadrum Investment Fund IV.

Founded in 1973 by Frans Nooren in Stadskanaal as an impregnation company, SealteQ has grown into a group with 7 locations and more than 250 skilled specialists who work daily with innovative, tailor-made solutions to preserve concrete and steel structures throughout the Netherlands.

Following the partnership with Quadrum Capital, the group has expanded further into an organization with 10 locations, nationwide coverage, and a strong reputation as a leading maintenance specialist for concrete, steel, and real estate structures in the Netherlands.