L’Alliance is a French manufacturer specializing in street furniture and metal products. Based in Châtellerault, the company has six production sites and employs over 230 people. It operates under three brands —SERI, ARI, and MDO— and serves over 4,500 customers, including large corporations such as Total, La Poste, and La Française des Jeux (FDJ). L’Alliance’s product range includes street furniture (e.g. bollards, benches, bus stops) and metallic structures. The company focuses on growth through transport projects, product range expansion, and international development.