IRCON delivers turnkey EPC projects from concept to commissioning, primarily in railways and highways, and also undertakes bridges, tunnels, signalling & telecom, and building works. It has a long-standing focus on public sector infrastructure projects in India and abroad .

The company has a presence in more than 20 Indian states and operates internationally in six countries including Algeria, Sri Lanka, Myanmar, Nepal, Bangladesh and Malaysia. Exports accounted for 3.33% of turnover in FY 2024–25 .

IRCON has 11 subsidiaries. The company also participates in multiple joint ventures and joint operations for project delivery.