MAIRE S.p.A. provides solutions in green chemistry and energy transition technologies. It operates through two segments: Integrated E&C Solutions and Sustainable Technology Solutions. The Integrated E&C Solutions segment offers services such as feed, engineering, procurement and construction, plus upgrading and revamping of existing assets through its network of engineering hubs and operating centers. The Sustainable Technology Solutions segment provides technology licensing, process design package basic engineering design, proprietary equipment and catalysts, digital solutions, specialty solutions, and nitrogen, hydrogen, circular carbon, fuels and chemical, and polymer solutions. Formerly known as Maire Tecnimont S.p.A., the company changed its name to Maire S.p.A. in April 2024. It is headquartered in Milan, Italy, and operates as a subsidiary of Glv Capital S.P.A.