Semac Consultants Limited provides integrated design, engineering, procurement, and construction services. It engages in the business of engineering and procurement contractors (EPC), general engineers, mechanical engineers, process engineers, civil engineers, general mechanical and civil contractors, architectural structural, mechanical, electrical, plumbing, fire suppression, air conditioning, IT systems, access control, security systems, etc., as well as offers project management services. The company also constructs, builds, develops, maintains, operates, owns, and transfers infrastructure facilities, including housing, roads, highways, bridges, airports, ports, rail systems, water supply projects, irrigation projects, inland water ways and inland ports, water treatment systems, solid waste management systems, and allied activities. The company was formerly known as Revathi Equipment Limited and changed its name to Semac Consultants Limited in July 2023. Semac Consultants Limited was incorporated in 1962 and is headquartered in Gurugram, India.