Glean

Glean is a Palo Alto-based enterprise AI company founded in 2019 by former Google search engineers, building what it calls a Work AI platform. Its core premise is that valuable company knowledge is fragmented across dozens of SaaS tools, and that a permissions-aware knowledge graph plus AI can make that knowledge instantly discoverable and actionable.

The company has grown rapidly and is well capitalized, having raised a total of roughly $765M across six rounds. Its most recent disclosed round was a $150M Series F in June 2025 at a $7.2B valuation, led by Wellington Management, following a $200M Series E at $4.6B in September 2024. Glean was also named to CNBC's 2026 Disruptor 50 list.

Glean's platform has three pillars: enterprise search, an AI assistant, and Glean Agents. Search spans 100+ connectors including Slack, Google Drive, Confluence, Jira, Salesforce, and Microsoft 365, returning personalized results that respect each user's existing permissions. The assistant layers generative AI grounded in company data on top of that graph, and is accessible through a browser extension, desktop app, and iOS/Android apps.

In January 2026 Glean shipped a major Agents update featuring Agent Builder, an Agent Library, Agent Orchestration, and the Glean Protect governance layer. Agents can select from 100+ native actions across tools like Salesforce, Jira, GitHub, and M365, plus MCP-enabled actions, with guardrails such as department-level moderators, action-level access controls, and sensitivity-label enforcement. Glean can be deployed cloud-only or via a Cloud-prem model that runs the tenant as a managed service isolated within the customer's own AWS or GCP environment.

Glean targets mid-market and large enterprises, particularly knowledge-intensive organizations whose employees juggle many SaaS applications and lose time searching for information. Typical buyers are IT, knowledge-management, and increasingly AI/platform leaders who want a governed, company-wide standard for internal AI, with heavy usage from engineering, sales, support, and operations teams. Its seat minimums and enterprise-grade security and compliance orientation make it a poor fit for solo users, freelancers, and small startups.

Glean has raised approximately $765M in total across six rounds. Key milestones: $100M Series C in May 2023 at a $1B valuation (Sequoia, General Catalyst); $200M Series E in September 2024 at a $4.6B valuation (led by Kleiner Perkins); and a $150M Series F in June 2025 at a $7.2B valuation, led by Wellington Management with participation from Khosla Ventures, Altimeter, Coatue, DST Global, ICONIQ, IVP, Lightspeed, Sequoia, and others.