Olivier Bramaud Grattau came to investing at Meridiam after working in the French transport ministry, running the Port of Gennevilliers, and leading commercial work at Bouygues Travaux Publics, giving him deep hands-on experience in ports, airports, roads, solar power, and power interconnection, backed by a strong math and engineering background from École Polytechnique, Université Pierre et Marie Curie, and École des Ponts. He has repeatedly taken on complex projects like the Calais port concession, where he helped structure a 40-year project bond by separating traffic risk from construction risk, and he continues to sit on boards for assets like NeuConnect, reflecting a focus on large, complicated infrastructure projects that require careful financial structuring and long-term public cooperation.