Glean Technologies, Inc. is an American technology company specializing in enterprise-grade artificial intelligence (AI) and search capabilities. The company develops a platform that combines enterprise search, an AI assistant, and AI agents to help employees access and act on information across workplace applications. As of June 2025, its valuation was reported by Reuters at $7.2 billion.
History
Glean was founded in 2019 in Palo Alto, California. In September 2021, the company introduced its assistive search tool, designed to pull together information from dozens of disparate applications, streamlining access to critical data across various platforms. In February 2025, Glean reported reaching $100 million in annual recurring revenue. At that time, the company also announced its agent platform, designed to automate workplace tasks beyond search; the platform became generally available in May 2025. In September 2025, Glean introduced a third-generation Glean Assistant and an Enterprise Graph focused on personalization and multi-step task execution. The company was named to CNBC's top 50 disruptor list in 2025.
Products and technology
Glean's platform combines enterprise search, an AI assistant, and AI agents. Its search product integrates with workplace applications to index company data and provide permission-aware results, meaning users only see information they are authorized to access. The AI assistant, introduced in 2021, helps employees find and summarize information across connected systems. In 2025, the company expanded into agent technologies, allowing employees to create and deploy AI agents to automate workflows using natural language instructions. The underlying technology leverages large language models and generative AI techniques, with components such as multi-head attention and positional encoding common in modern transformer architectures. The platform also incorporates model pruning and data augmentation to optimize performance and accuracy.
Funding rounds
In March 2019, shortly after its establishment, Glean raised $15 million in Series A funding co-led by Kleiner Perkins and Lightspeed, which included participation from the Slack Fund. In March 2021, the company closed a Series B funding round of $40 million led by General Catalyst. In May 2022, Glean secured a $100 million Series C led by Sequoia Capital at a $1 billion valuation, reaching unicorn status. In February 2024, Glean raised over $200 million in Series D funding at a $2.2 billion valuation. In September 2024, the company raised over $260 million in Series E funding, co-led by Altimeter Capital and DST Global, taking its valuation to $4.6 billion. In June 2025, Glean raised $150 million in Series F financing led by Wellington Management at a $7.2 billion valuation.
Market position and competition
Glean operates in the competitive enterprise AI search and productivity space, facing rivals that include established cloud providers and AI startups. Its focus on permission-aware indexing and integration with popular workplace tools differentiates it from general-purpose AI assistants. The company's rapid valuation growth reflects broader investor interest in enterprise AI applications, particularly those that leverage neural networks and deep learning to improve knowledge worker productivity. Glean's technology is often compared to offerings from OpenAI and Anthropic, though it targets a narrower enterprise workflow niche rather than general machine learning research.
See also
- Generative AI
- Large language model
- Enterprise search
- AI agent