BIG INVEST GROUP Joint Stock Company was granted the first business registration certificate number 0108045831 by the Department of Planning and Investment of Hanoi city with the name Nam Son Technology Equipment Joint Stock Company, the initial charter capital is 10 billion. Before taking the name BIG INVEST GROUP Joint Stock Company, the company was also known as BIG GROUP Real Estate Joint Stock Company.

According to the business registration certificate of the 2nd change dated 18/07/2019, the company was renamed BIG INVEST GROUP Joint Stock Company, main activities in the fields of real estate consulting, brokerage and auction , auction of land use rights