Glean, an AI-driven enterprise work platform, raised $260 million in Series E financing, doubling its valuation to $4.6 billion, co-led by Altimeter and DST Global. Glean's mission is to provide work AI for everyone, connecting and deeply understanding enterprise data, personnel, processes, and environments, while maintaining intuitiveness and security, becoming a reliable tool in daily work. Since its launch in 2019, Glean has evolved from an AI-powered enterprise search engine to a comprehensive enterprise AI assistant.