TOM Group Ltd. is an investment holding company, which engages in the provision of outdoor media, internet, and publishing services. It operates through the following business segments: E-Commerce Group, Mobile Internet Group, Social Network Group, Publishing Group, and Advertising Group. The E-Commerce Group segment involves in providing services to users using the mobile and Internet-based marketplace and also includes technical services for e-commerce operations. The Mobile Internet Group segment offers mobile Internet services, online advertising, and commercial enterprise solutions. The Social Network Group segment offers services of online community and social networking websites and related online advertising. The Publishing Group segment involves in the magazine and book circulation, sales of publication advertising, and related product. The Advertising Group segment comprises of sales of outdoor media assets and services, event production, and marketing services. The company was founded by Sing Wang in October 1999 and is headquartered in Hong Kong.