Permira buys stake in Portugal’s Quadrante

British private equity firm Permira has acquired a stake in Portuguese engineering and architecture company Quadrante to support its international expansion, particularly in the United States, in a deal that highlights growing investor interest in Portuguese firms linked to energy and infrastructure.

Quadrante said its founders, including chief executive Nuno Costa, and Spanish fund Henko Partners will retain significant positions as investors. The value of the transaction was not disclosed, and the company said the deal is expected to close in the fourth quarter of 2026, subject to regulatory approvals.

In a statement, Costa said Permira would support the company’s next phase of growth, while Permira partner Anish Patel said Quadrante was positioned at the intersection of the energy transition and global critical infrastructure development. He said the firm sees “a significant opportunity” to support Quadrante’s international expansion, especially in the US, where demand is rising for engineering expertise in energy, renewables, data centres and infrastructure.

Quadrante completed the acquisition earlier this month of Los Angeles-based Right Analytics, a consultancy focused on electrical transmission systems whose clients include Google and data centre companies. The Portuguese group operates in energy, mobility and sustainable cities, is present in more than 20 countries, employs about 1,500 people and reported €122 million in revenue in 2025.

Originally published at Eco.pt