Gridsum Holding, Inc. provides data analysis software for multinational and domestic enterprises and government agencies in China. Its products include: Web, Video, Streaming, Mobile, SEM, Constibution, TV, Ad, Law, SEO, Media, Rating Dissectors, and Data Visualization. The company was founded by Guo Sheng Qi and Guo Fa Yu on December 1, 2005 and is headquartered in Beijing, China.