The enterprise AI search and work assistant turning company knowledge into an agent platform.
Updated · Analysis by Trace Cohen · glean.com
Series F
Series F
May 2026 — up from $208M end-2025, +89% YoY
in ~15 months, from $100M
by ex-Google search engineers
From ~$100M in early 2025 to ~$300M by May 2026.
Source: Company reports / press (2025–26)
~$7.2B, set at a $150M Series F. Glean has become a poster child for enterprise AI ROI as corporate budgets tighten.
Glean indexes a company's apps — Slack, Drive, Jira, and more — into a permissions-aware knowledge graph, then sells an enterprise search, AI work assistant, and agent-building platform on top. Pricing is subscription plus a consumption component.
It is positioned explicitly as a Microsoft Copilot alternative with better enterprise context, and has nearly doubled its Fortune 500 customer count year over year. As AI budgets tighten, Glean's pitch has shifted to measurable ROI — making it a benchmark for whether enterprise AI actually pays back.
Glean raised a $150M Series F at a $7.2B valuation. Backers include Kleiner Perkins, Lightspeed, Sequoia, Coatue, General Catalyst, and Sapphire. Note: part of reported ARR is an annualized consumption run-rate.
The incumbent enterprise AI assistant Glean positions against.
General-purpose enterprise assistant.
Google's enterprise search and agent stack.
Knowledge-management tools competing on the search layer.
Glean is the cleanest test case for whether enterprise AI delivers ROI. Crossing $300M ARR while AI budgets tighten — and doing it explicitly as the 'Copilot alternative with better context' — means buyers are choosing the focused indexing-and-agents player over the bundled incumbent. The risk is the consumption-revenue caveat: when part of ARR is an annualized run-rate, growth can compress as fast as it expanded if usage dips.
Glean is valued at roughly $7.2 billion, set at a $150M Series F round.
Glean crossed roughly $300 million in ARR by May 2026, up from $208 million at the end of 2025 — about 89% year-over-year growth, and 3x growth in roughly 15 months.
Glean positions itself as a Microsoft Copilot alternative with better enterprise context — it indexes a company's apps into a permissions-aware knowledge graph and builds search, an assistant, and agents on top, and has nearly doubled its Fortune 500 customer count year over year.
Glean sells an enterprise search, AI work assistant, and agent-building platform on a subscription plus consumption model, layered on the knowledge graph it builds from a company's apps like Slack, Drive, and Jira.
Analysis by Trace Cohen · @Trace_Cohen · t@nyvp.com. Figures are as of the update date; verify before relying on them.