SEW Infrastructure Limited constructs and develops infrastructure projects. It engages in the construction of tunnels, hydel power and thermal power plant, dam and barrage, lift irrigation, canal and aqueduct, power transmission, public health engineering, transportation, commercial building, industrial structure, property development, port, mining, oil and gas, and build–operate–transfer projects. SEW Infrastructure Limited was formerly known as SEW Constructions Ltd. and changed its name to SEW Infrastructure Limited in January 2008. The company was founded in 1959 and is headquartered in Hyderabad, India with additional offices in New Delhi, Kolkata, and Vijayawada, India; Addis Ababa, Ethopia; Singapore; Muscat, Oman; Jakarta, Indonesia; Windhoek, Namibia; and Kampala, Uganda