[1] It is the majority share holder of Bangkok Mass Transit System PCL (BTSC), the operator of the BTS Skytrain and the Bangkok BRT.

[2]: 16–17 BTSG does business in several areas: mass transit (through the Bangkok Mass Transit System Public Company Limited), media/advertising (through VGI Global Media), property/real estate (through property developer U City and hotel operator U Hotels & Resorts), and associated service businesses.

[3][4] BTSG has holdings in 57 subsidiaries, jointly controlled companies, or associated firms,[2]: 72–78  it groups its operations into three segments "MOVE", "MIX" and "MATCH".

A BSR Joint Venture between BTSG, Sino-Thai Engineering and Construction PCL and Ratchaburi Electricity Generating Holding PCL also hold the concession to build and operate the Pink Line and Yellow Line via two subsidiaries, Northern Bangkok Monorail Co., Ltd and Eastern Bangkok Monorail Co., Ltd.[5][6][7] BTSG's fiscal year runs from 1 April to 31 March.

Its eight executives were given 92 million baht in monetary compensation, not including stock warrants.