Baidu, Inc. is a Chinese multinational technology company specializing in Internet-related services, headquartered in Beijing's Haidian District. It holds a dominant position in China's search engine market, and provides a wide variety of other internet services such as Baidu Baike, iQIYI, and Baidu Tieba.

Haidian District is an urban district of the city of Beijing. It is mostly situated in northwestern Beijing, but also to a lesser extent in the west, where it has borders with Xicheng and Fengtai.