General Motors Co. engages in the designing, manufacturing, and selling of trucks, crossovers, cars, and automobile parts, and in providing software-enabled services and subscriptions. The company is headquartered in Detroit, Michigan and currently employs 156,000 full-time employees. The company went IPO on 2010-08-20. The firm's segments include GMNA, GMI and GM Financial. Its GM North America (GMNA) and GM International (GMI) segment develop, manufacture and/or markets vehicles under the Buick, Cadillac, Chevrolet and GMC brands. The firm's GM Financial segment provides automotive financing and related services. The firm is also focused on investing in electric vehicles (EVs) and autonomous vehicles (Avs), software-enabled services and subscriptions and new business opportunities. The firm's portfolio includes OnStar, GM Energy, GM Insurance, GM Genuine Parts, and the GM Company Store. Its OnStar portfolio offers safety, connectivity and hands-free driver assistance technologies. Its GM Energy provides Home EV Charging, Public EV Charging, Vehicle-To-Home and Energy Storage services.