Glean

Glean is an enterprise AI search and knowledge management platform founded in 2019 by Arvind Jain (former Google Distinguished Engineer). Valued at $7.2 billion in its June 2025 Series F, Glean has tripled annualized revenue from $100 million to $300 million in fifteen months — among the fastest growth curves in enterprise AI. Named customers include Databricks, Reddit, Pinterest, and Samsung. A portion of the $300 million figure reflects annualized consumption-based pricing rather than pure subscription.

Glean connects to over 100 enterprise data sources (Google Workspace, Microsoft 365, Slack, Confluence, Salesforce, and more) and provides a unified AI-powered search experience that understands organizational context, permissions, and relationships. Glean's AI assistant can answer questions by synthesizing information from across all connected sources, generate content based on company knowledge, and surface relevant information proactively.

Glean's enterprise focus includes strict permission enforcement (users only see results they're authorized to access), customizable AI behavior aligned with company policies, and deployment options that satisfy enterprise security requirements. The platform serves hundreds of enterprise customers and competes with Microsoft Copilot, Google Vertex AI Search, and other enterprise search solutions. CEO Arvind Jain's core pitch is that routing AI through Glean's context graph reduces token consumption versus unleashing models directly on raw enterprise systems — a cost-cutting angle that has become Glean's primary differentiator as enterprises grapple with AI spend.