Incorporated in the year 1983, Interarch Building Limited is an Indian turnkey pre-engineered steel construction solutions provider. Interarch supports facilities of design, engineering, manufacturing, and on-site project management for installing and erecting a range of pre-engineered steel buildings (PEB).As of 31st March, 2023, it was the second-largest one with an installed capacity of 141,000 metric tonnes per year. It also maintained a 6.1% market share in operating income among integrated PEB players in India for the financial year 2023.It is offering PEBs through contracts for pre-engineered steel buildings (PEB Contracts) and sale of pre-engineered steel building materials (PEB Sales), comprising metal ceilings, corrugated roofing, PEB steel structures, and light gauge framing systems.

In its industrial/manufacturing construction category, the company counts among its customers the names of Grasim Industries Limited, Berger Paints India Limited, Blue Star Climatech Limited, Timken India Limited, and Addverb Technologies Limited. The customer for the infrastructure construction category includes InstaKart Services Private Limited.The manufacturing facility is four, of which two are situated in Sriperumbudur, Tamil Nadu, India, and one is at Pantnagar, Uttarakhand, and also at and Kichha, Uttarakhand, India.The company has its sales and marketing employees in Chandigarh, Punjab, Haryana; Lucknow, Uttar Pradesh; Coimbatore, Tamil Nadu; Bhubaneshwar, Odisha; and Raipur, Chhattisgarh.

All the company's Manufacturing Facilities have each been certified as ISO 9001:2015 qualified in Quality Management System.As of September 30, 2023, the company has 111 qualified structural design engineers and detailers in its in-house design and engineering team. The average work experience of these employees with the company is 8.05 years.