The minority shareholders of JJ Tomé have sold their stake to Eiffage
August 2026 — The minority shareholders of JOÃO JACINTO TOMÉ, S.A. (JJ Tomé) have sold their remaining stake to Eiffage Énergie Systèmes, which was already the majority shareholder, giving the French group full ownership of the Portuguese business.
Founded in 1950, JJ Tomé specializes in the design, delivery and management of turnkey energy projects, including electrical and mechanical installations comprising heating, ventilation and air conditioning systems (HVAC) and other fluid systems, as well as multi-technical maintenance. The company serves four markets: industry, infrastructure and networks, tertiary and municipalities and communities.
Eiffage Énergie Systèmes is the energy arm of Eiffage, one of Europe’s leading construction and concessions groups, listed on Euronext Paris. From more than 100 establishments across Europe, it designs, builds, operates and maintains electrical, industrial, HVAC and energy systems for industrial, infrastructure, municipal and tertiary-building clients.
Our role in the transaction
Oaklins’ team in Portugal acted as the exclusive M&A advisor to the selling minority shareholders, supporting them throughout the valuation, negotiation and closing of the transaction.
Falar com a equipa da transação
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