Glean review

Glean ranks first because it is built for exactly this job: one search and chat box over every app a company runs, with answers limited to what each person may see. Its connector page lists 275+ native and MCP-based connectors, from Slack, Google Drive, Jira and Confluence to Gong, Greenhouse and Databricks. Glean says data permissions are inherited and strictly enforced, and that permission changes in a source app are reflected in results immediately, which is the hardest part of enterprise search to get right. Beyond search, it offers actions and agents that run on triggers or schedules, with approval steps before anything executes. The catch is cost visibility. Glean does not publish prices, so you cannot model a budget before a sales call, and there is no free plan to trial with a small team. For companies with hundreds of staff and knowledge split across many vendors, it is still the strongest documented option.

Who it is for

Companies of several hundred staff or more whose knowledge is spread across many SaaS apps from different vendors.

Price

See vendor pricing (USD check pending).

US price check pending. See the vendor pricing page.

Key features

• 275+ out-of-the-box native and MCP-based connectors, including Slack, Google Drive, Jira, Confluence, SharePoint, GitHub and Salesforce
• Data permissions inherited from each source and enforced on every result
• Real-time sync, so content and permission changes show up as soon as they change in the source app
• Actions and agents triggered by events or schedules, with human-in-the-loop approval
• Indexes and knowledge graphs built across company content, activity and people

Strengths and weaknesses

• Strength: Widest published connector catalog on this list
• Strength: Permission changes are reflected immediately in results
• Strength: Security certifications listed include SOC 2 Type II, ISO 27001, ISO 42001 and HIPAA
• Weakness: No public price; every deal starts with a demo
• Weakness: Built for enterprise scale, so small teams may find it heavy
• Weakness: No free plan

Key facts

• Connectors: 275+ native and MCP-based
• Permissions: Inherited from source apps and strictly enforced
• Sync: Real time across billions of documents
• Certifications: SOC 2 Type II, ISO 27001, ISO 42001, HIPAA, GDPR

Where it ranks

Glean is No. 1 in our Best AI Enterprise Search Tools verdict.