Glean
Permissions-aware enterprise search, assistant, and AI agents
4.5Enterprise / CustomBest for Established firms wanting one AI layer over all deal history and memos
Enterprise Search Knowledge Agents
Overview
Glean is a Work AI platform that indexes a firm's apps and documents into a permissions-aware knowledge graph, powering enterprise search, an AI assistant, and no-code agents over internal knowledge. Valued at $7.2 billion after its 2025 raise with roughly $200M ARR, it is used by investment firms to make deal history, IC memos, and internal expertise instantly searchable.
Key features
- Enterprise search across 100+ SaaS connectors
- Permissions-aware knowledge graph respecting source ACLs
- AI assistant grounded in company data with citations
- No-code agent builder for internal workflows
- Deployment options across major model providers
Pros
- Best-in-class relevance on messy internal knowledge
- Respects existing document permissions out of the box
- Model-agnostic — not locked to one AI vendor
Cons
- Enterprise-only pricing with meaningful seat minimums
- Value depends on connector coverage of your stack
- Deployment and governance take real IT effort