- CEO
- L. Bajoria
- Full Time Employees
- 561
- Sector
- Industrial services
- Industry
- Engineering & construction
- Address
- Simplex House Kolkata WB India 700017
- IPO Date
- Feb 12, 1993
- Business
- Simplex Infrastructures Limited (SIMPLEXINF.NS) operates as a diversified civil engineering and construction contracting company in India and select international markets. Founded in 1924 and headquartered in Kolkata, West Bengal, the company provides engineering, procurement, and construction (EPC) services; turnkey projects; and specialized civil works across multiple segments including ground engineering, industrial projects, buildings and housing, power and transmission, marine structures, roads, railways and bridges, and urban infrastructure. Its core offerings encompass design-and-build construction of high-rise residential towers, institutional and IT buildings, hotels, hospitals, mass housing projects; rail infrastructure such as tracks, station buildings, bridges, and culverts; power facilities including thermal, hydel, nuclear, and ultra-mega power plants; marine works like underwater piling, ports, jetties, and bridges across rivers; ground engineering solutions featuring cast-in-situ and driven piling, soil investigation, diaphragm walls, grouting, and stone columns; roads, highways, flyovers, expressways, and airport terminals; as well as mining, oil drilling, equipment leasing, and scrap sales.
The company maintains operations primarily in India with additional presence in the UAE, Bahrain, Qatar, Libya, Oman, Bangladesh, and Sri Lanka, serving industries such as aluminum, automobiles, cement, petrochemicals, fertilizers, pharmaceuticals, paper, textiles, chemicals, and utilities. Subsidiaries include Simplex (Middle East) Limited in the UAE, Simplex Infrastructures Libya Joint Venture Co., and Simplex Infra Development Private Limited (SIDL), among others.
In recent developments, Simplex Infrastructures completed a major debt restructuring of Rs 10,295.47 crore with the National Asset Reconstruction Company Limited (NARCL) in 2025, converting a portion into equity shares allotted to NARCL, rescheduling repayments on another part, and deferring the balance to future recoveries from disputed claims and receivables. Through subsidiary SIDL, it acquired an additional 49% stake in Maa Durga Expressways Pvt Ltd in November 2025, enhancing its roads segment exposure.