Bilibili, a publicly owned company headquartered in China, was founded in 2009, operates with approximately 2,290 employees, and specializes in software development. Functioning as a tier 1 media tech buyer, the company reported $3.7B in revenue as of 2024. Bilibili operates a video sharing and live streaming platform based in Shanghai, serving as a hub for China’s "Z Generation" and "Generation Alpha" youth cultures. Originally established as a niche community focused on anime, comics, and games (ACG), the platform has diversified to feature professional user-generated content (PUGC) across lifestyle, technology, entertainment, and education categories. A technical feature of the platform is the "bullet chat" (danmu) system, a real-time commentary overlay that facilitates social interaction among viewers. Financially supported by entities including Tencent and Alibaba, Bilibili utilizes a multifaceted monetization model encompassing mobile gaming, premium subscriptions, live broadcasting services, and e-commerce. The company also invests in original animation production, documentary filmmaking, and the hosting of large-scale offline events.