Glean is No. 6 on the list of the World’s 50 Most Innovative Companies of 2025. Explore the full list of companies that are reshaping industries and culture.
Companies often struggle to mine their own experience and institutional knowledge to stay competitive. When workers don’t know where to look for information, otherwise crucial data is useless. That’s where Glean steps in, with an LLM-powered assistant built by former Google engineers that allows clients’ workforces to unearth and package internal information in useful ways. Think of it like ChatGPT, says CEO Arvind Jain, “but with the additional power of knowing everything about your company.”
Last year, the company released Glean Work AI, which lets users enter plain language prompts to create AI agents that tackle routine and repetitive tasks. It also deployed retrieval-augmented generation, which forms custom reports from AI-selected snippets of indexed documents.
Glean has proven sticky among its users, who return to the app an average of five times a day. The company’s annual recurring revenue, meanwhile, reached $100 million in 2024, triple that of the previous year. It also raised $460 million over two funding rounds; the second, in September, pushed the company’s valuation to $4.6 billion. Jain says to look out for even more agent-like features in 2025.
Explore the full 2025 list of Fast Company’s Most Innovative Companies, 609 organizations that are reshaping industries and culture. We’ve selected the companies making the biggest impact across 58 categories, including advertising, applied AI, biotech, retail, sustainability, and more.
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