Acea SpA is a holding company, which engages in the business of managing and developing water, energy, and environmental services. It operates through the following segments: Environment, Commercial, Water, Overseas Water, Production, Networks and Public Lighting, Engineering and Infrastructure Projects, and Corporate. The Environment segment focuses on Acea Ambiente, Aquaser, Acque Industriali, Iseco, Demap, Berg, Ferrocart, Cavallari, Deco, Meg, S.E.R. Plast, AS Recycling, Tecnoservizi, Italmacero, and Orvieto Ambiente. The Commercial segment includes Acea Energia, Aema, Umbria Energy, and Acea Innovation. The Water segment is involved in Lazio, Campania, Tuscany, and Umbria; and gas distribution companies operating in Abruzzo and ASM Terni. The Overseas Water segment provides activities carried out abroad. The Production segment is comprised of Acea Produzione, Ecogena, Acea Liquidation, and Litigation; and all the companies in the Photovoltaic sector. The Networks and Public Lighting segment offers areti and public lighting. The Engineering and Infrastructure Projects segment holds organizational Acea Infrastructure, TWS, Ingegnerie Toscane, and SIMAM. The company was founded in 1909 and is headquartered in Rome, Italy.