Engineers India Limited (EIL) is a leading public sector engineering consultancy and technology licensing company based in New Delhi, India. Established in 1965, EIL originally focused on hydrocarbon projects and has since expanded its expertise to include non-ferrous metallurgy, infrastructure, water and wastewater management, fertilizers, and renewable energy. The company employs over 2,800 professionals, including more than 2,400 engineers.

EIL provides a wide range of services, including process design, project management, technology licensing, and turnkey project execution. With a strong emphasis on research and development, EIL operates a sophisticated R&D center and holds numerous patents related to petroleum refining and oil processing technologies. The company has successfully completed over 8,000 assignments globally, including major projects in oil and gas, petrochemicals, and infrastructure. EIL is committed to expanding into sustainable sectors, aligning with government priorities, and enhancing its presence in renewable energy and smart city initiatives.