Diana Capital joins the shareholding of Revestech, a leading company in the manufacture of next-generation waterproofing systems
The Alicante-based company, a pioneer in the manufacture of sustainable waterproofing systems, has consolidated its own brand across the main distribution channels in the sector.
The new investment by the Spanish private equity manager will allow Revestech to accelerate its growth and internationalization plan.
The transaction is the second investment made by the Diana Capital III FCR fund, which has €180 million to support the growth of Spanish middle-market companies.
Madrid, 10th december, 2025
Diana Capital, the Spanish private equity manager specialized in investing in middle-market companies, announces its investment in Revestech, an Alicante-based firm specialized in advanced waterproofing systems, ranging from sustainable synthetic membranes to complete solutions for roofs, terraces, bathrooms, and showers.
The investment will allow Diana Capital to acquire a minority stake in Revestech to drive its international expansion. The new capital will be used to accelerate operational improvements, undertake selective acquisitions of complementary companies, and open new subsidiaries in strategic markets, supporting a management team—led by members of the founding family—highly committed to the project.
Founded in Alicante in 2006, Revestech specializes in advanced waterproofing solutions—including high-performance synthetic membranes and complete systems for roofs, terraces, and wet areas—along with quick-installation shower kits.
The group, which expects to close 2025 with €15 million in revenue and EBITDA above €4 million, operates from a 5,000 m² facility equipped with its own extrusion technology and state-of-the-art machinery. With nearly 70 employees, Revestech has built strong brand recognition among both construction professionals and technical specifiers. The company already exports around 30% of its production, with a strong presence in Europe and growing expansion in the Americas and Asia.
The waterproofing sector is experiencing strong momentum driven by the renovation of Europe’s real estate stock, the need for more efficient solutions in the face of climate change, and increasing regulation regarding sustainable construction. Globally, demand for advanced systems—particularly those based on high-performance synthetic membranes—continues to grow strongly, supported by urbanization, energy-efficiency renovation, and the rise in extreme weather events.
Miguel Martínez, President of Revestech, welcomes Diana Capital in this new stage of the company’s growth. “We are very pleased to have found a long-term investment partner like Diana Capital, with an ambitious growth plan to take our company into a new phase of expansion and internationalization, and with the incorporation of Francisco Gómez-Zubeldia and Alejandro Mejías to the Board.”
For his part, Francisco Gómez-Zubeldia, Vice President and CEO of Diana Capital, states: “Built upon the fundamental pillars of our investments—a strong shareholder base and management team—Revestech is a company with great potential for growth and value creation thanks to its extensive production capacity, potential operational improvements, international expansion, selective acquisitions (M&A), and professionalization.”
In the transaction, the financial due diligence was carried out by EY, and the legal, tax, and labor due diligence by Garrigues. Bankinter acted as advisor to the Company.
Since its creation in 2000, Diana Capital has invested more than €400 million supporting Spanish mid-sized companies in their international growth. Notable exits in the manager’s trajectory include Gransolar, sold to Trilantic; Burger King, sold to Restaurant Brands Iberia, the master franchisee for Spain and Portugal; lighting firm Indal, now part of the Philips Group; and Guascor, acquired by Siemens, as well as Recyde to Cie Automotive.
With Grupo Lappí, Diana Capital is consolidating its leadership in the labelling sector, having positioned the group as the leading company in the Iberian Peninsula and the fourteenth in Europe, with recent acquisitions such as the purchase of 100% of CPM-PENTA Group.