Simplex Infrastructures Limited (SIL), established in 1924, is a leading global infrastructure company headquartered in Kolkata, India. It operates across diverse sectors including Ground Engineering, Power, Industrial, Urban Utilities, Buildings & Housing, Roads, Railways, Bridges, and Marine. Originally under UK control, the company was acquired by the Mundra family post-Indian independence. SIL introduced cast-in-situ driven piles in Asia and has an extensive history of major projects such as steel plants, ports, and high-rise buildings. It has a notable presence in thermal power plants, having contributed to over 80% of India's installations.
SIL has expanded internationally since 1982, establishing subsidiaries in the Middle East, Sri Lanka, Libya, and Bangladesh. It has undertaken various high-profile projects such as the Eastern Freeway in Mumbai and multiple power plants across India. The company is ISO 9001:2000 certified and continues to engage in large-scale infrastructure projects, including residential developments, roads, and metro systems, demonstrating its significant role in both national and international infrastructure development.
