Gretex Industries Ltd was originally incorporated as a private limited company under the name "Heritage Barter Private Limited` on 16th July 2009. Subsequently, the name of the company was changed to "Gretex Industries Private Limited` on 7th February 2013. The company was converted into a public limited company and the name of the company was changed to "Gretex Industries Limited` on 20th November 2013.

Rajib Nandi, Bivash Nandi and Bijoy Gupta were the subscribers to the Memorandum of the Company. Ambuja Technologies Private Limited and Ambition Tie-up Private Limited subsequently executed a strategic acquisition of shares in 2010. Further Arvind Harlalka and Sumit Harlalka executed a strategic acquisition of shares in 2013.

Ambuja Technologies Private Limited, Ambition Tie-up Private Limited, Arvind Harlalka and Sumit Harlalka are Promoters of the company.

The company is into knitting activities and is engaged in manufacturing of hosiery which includes wollycoat, thermal innerwear, leggings, etc. It also undertake job work activities for various brands. Its product range includes production of fabric by using Interlock, Rib, Reversible, Fleece, Polyfill techniques. It also manufactures Sinker using Lycra yarns. Its manufacturing facility is situated at Jalan Industrial Complex in Domjur Area in the district of Howrah, which is one of the oldest Industrial Complex nearby Kolkata.