Glean Technologies, an AI-powered enterprise search startup, has raised over $260 million in a Series E funding round, doubling its valuation to $4.6 billion. The funding round was co-led by Altimeter and DST Global. Glean aims to build a 'Google for Work' by offering unified search across various enterprise applications. The company plans to use the new funds to enhance its AI platform and expand globally. Glean's founders include former Google search engineers, and the company has introduced new features to improve productivity by automating complex workflows and integrating AI into daily routines. Earlier in February, Glean raised $200 million at a $2.2 billion valuation.