Ircon International Limited, together with its subsidiaries, provides construction services worldwide. The company’s services include construction of new railway lines; rehabilitation/conversion of existing lines, station buildings and facilities, and bridges; regirdering of railway bridges, tunnels, and signaling and telecommunication networks; and railway electrification works. It is also involved in the wet leasing of locomotives; and setting up of production units for manufacture rolling stock, maintenance depots/workshops, concrete sleepers, and track components on turn-key basis. In addition, the company engages in the construction of roads and highways; bridges and flyovers; and commercial, institutional, industrial, and residential complexes, as well as airport hangers, station buildings and facilities, hospitals, business centers, workshops/warehouses, etc. Further, it provides electrification services, including electrical sub-stations; turn-key solutions for signaling and communication projects; and supplies plant and machinery for workshops, high speed lightweight passenger cars, and diesel electric locomotives, as well as leases and maintains diesel locomotives. The company, formerly known as Indian Railway Construction Company Limited, was incorporated in 1976 and is based in New Delhi, India.

Ircon International Limited is a central Public Sector Enterprise incorporated as a government company under the Companies Act. 1956. IRCON was set up to utilize the Indian Railway's experience in helping Developing Nations of the world to install or maintain their own railways and also to execute railway projects for private sector. The Company was the first to get the ISO-9001:2008 Certification from TUV Germany for its full range of construction activities. The Company's specialization is in Railways, Railway Electrification, Signal and Telecommunication, construction of roads, highways, commercial, industrial and residential complexes, airport runways, airport constructions, leasing of locomotives, mass rapid transit system etc. IRCON has been ranked the 3rd largest construction company of India in October 2004 on the occasion of Construction World-NICMAR (National Institute of Construction Management and Research) Award 2004. The Company has completed 280 landmark infrastructure projects in India and 90 projects across the globe in 21 countries namely, Algeria, Angola, Bangladesh, Indonesia, Iran, Iraq, Israel, Italy, Jordan, Lebanon, Malaysia, Nepal, Nigeria, Saudi Arabia, Syria, Tanzania, Turkey, United Kingdom, Zambia. The Company has also taken up projects in Mozambique and Ethiopia.