Glean in 2026 — The Enterprise AI Search Tool That Actually Finds What You're Looking For

The average knowledge worker spends 9.3 hours per week searching for information across company tools. Not creating. Not analysing. Not thinking. Just looking for things that already exist somewhere in Slack, Google Drive, Confluence, Jira, Salesforce, or one of the other dozen platforms their organisation pays for.

That number should make every operations leader furious. It means roughly a quarter of your salaried workforce's time is spent on the digital equivalent of rummaging through filing cabinets. And the tragedy is that the information is there — it's just buried across tools that don't talk to each other.

Glean exists to fix this. And with a $7.2 billion valuation after doubling its ARR to $200 million in nine months, the market seems to agree that it's working.

What Glean Actually Does

Glean is an enterprise AI search and knowledge platform that connects to your company's tools — all of them — and provides a single search interface across everything. Slack messages, Google Drive documents, Confluence pages, Jira tickets, Salesforce records, Zendesk tickets, GitHub repositories, email threads. One search bar. Every source.

But calling Glean "enterprise search" in 2026 is like calling a smartphone "a telephone." The search is the foundation, but the platform has expanded into three distinct layers:

1. Universal Search. Type a query, get results from every connected tool, ranked by relevance. Glean's proprietary Knowledge Graph understands not just what documents contain, but who created them, who interacts with them, and how they relate to other documents and people across the organisation. Search results are contextualised by your role, department, and recent activity — a sales rep searching "Q1 targets" gets different results than a finance analyst searching the same term.

2. AI Assistant. A conversational AI that answers questions using your company's data. "What was the outcome of last week's product review?" "Who owns the relationship with [client name]?" "Summarise the engineering team's objections to the migration proposal." The assistant draws from your entire connected knowledge base, not the internet, and cites its sources.

3. AI Agents. The newest layer. Glean's agents can perform multi-step tasks — summarise a Jira backlog and post the summary to Slack, draft a weekly status update from project data, compile a competitive analysis from internal research documents. The Agentic Engine 2, launched in late 2025, added write-back capabilities — agents that can update tickets, send messages, and take actions across connected platforms, not just read from them.

The Enterprise Graph — Why It Works

Most enterprise search tools index documents. Glean indexes relationships.

The Enterprise Graph is the intelligence layer that makes Glean meaningfully different from bolting a search bar onto your intranet. It maps:

• People — who knows what, who works with whom, who's the expert on a given topic
• Content — documents, messages, tickets, and records across every connected platform
• Activity — who viewed, edited, shared, or commented on what, and when
• Structure — team hierarchies, project relationships, and organisational context

This means Glean doesn't just find documents containing your search terms. It understands that the document was written by someone in the London engineering team, was reviewed by the VP of Product, was shared in a Slack channel about the Q2 roadmap, and was last updated yesterday. That context makes search results dramatically more relevant than keyword matching.

Integrations — The 100+ Connector Advantage

Glean's value is directly proportional to how many tools it connects to. The platform offers over 100 pre-built connectors, covering:

The breadth matters because enterprise search is only useful if it's comprehensive. A search tool that covers Google Drive but not Confluence means your team still has two places to look. Glean's pitch is that it becomes the only place to look — and with 100+ connectors, that's credible for most organisations.

Setup is connector-by-connector, typically taking 2-6 weeks for a full enterprise deployment depending on the number of platforms, data volumes, and security review requirements.

Security — The Make-or-Break Feature

Enterprise search has a fundamental problem: if you make everything searchable, you also make everything findable by people who shouldn't see it. A junior marketing coordinator shouldn't find the board's compensation committee minutes. An engineer in one division shouldn't access another division's client contracts.

Glean solves this with a permissions-aware architecture that was designed into the platform from day one, not bolted on afterwards.

How it works: Glean inherits access permissions from every connected platform. If you can't see a document in Google Drive, you can't find it in Glean. If a Slack channel is private, its messages only appear in search results for channel members. If a Salesforce record is restricted by role, the restriction carries over.

This sounds obvious, but it's technically difficult at scale. Most enterprise search tools either over-index (showing results users shouldn't see) or under-index (hiding results to avoid permission errors, making search less useful). Glean's approach — continuous permission syncing from every source system — threads the needle.

Additional security features in 2026:

• Alignment models (beta) that pre-scan every agent write action before execution, preventing agents from performing unintended operations
• Prompt injection protection blocking attempts to manipulate the AI assistant through malicious content in indexed documents
• Model neutrality — Glean supports 15+ LLMs and can be deployed single-tenant on AWS, Azure, or GCP, meeting data residency requirements for regulated industries
• Glean Protect Plus — a paid governance add-on for organisations that need audit trails, data loss prevention, and compliance controls beyond the standard platform

Pricing — The Enterprise Reality

Let's be direct: Glean is expensive. This is an enterprise tool with enterprise pricing, and the lack of public pricing is a deliberate sales strategy.

For a 200-person organisation, you're looking at roughly $120,000-$156,000 per year before add-ons. That's a significant investment, and it's priced to exclude small businesses entirely. Glean's sweet spot is organisations with 200-10,000 employees where the cost of *not* finding information — duplicated work, lost knowledge, slow onboarding — is measurably higher than the platform fee.

A critical note on renewals: buyer reports consistently cite annual price increases of 7-12% as a frustration. If you're evaluating Glean, negotiate a renewal cap in your initial contract. This isn't optional advice — it's table stakes for enterprise SaaS procurement, and Glean's sales team expects it.

Glean vs Microsoft Copilot — The Real Comparison

For organisations on Microsoft 365, the obvious question is: why not just use Copilot?

Choose Glean if your organisation uses a mix of Google Workspace, Slack, Atlassian, Salesforce, and other non-Microsoft tools. Copilot simply can't search what it can't connect to, and its connector ecosystem outside Microsoft is limited.

Choose Copilot if your organisation is standardised on Microsoft 365 and most of your knowledge lives in SharePoint, Teams, Outlook, and OneDrive. The tighter integration and lower price point make it the pragmatic choice when your data is already in Microsoft's ecosystem.

The nuance most reviews miss: these aren't always either/or decisions. Some enterprises run Glean for cross-platform search alongside Copilot for in-app productivity features within Microsoft tools. The costs add up, but for large organisations where information fragmentation is a genuine productivity drain, the combined value can justify both.

Who It's For — And Who It's Not For

Glean is for you if:

• Your organisation uses 10+ SaaS tools and information is scattered across all of them
• You have 200+ employees and knowledge silos are measurably slowing your teams down
• New employee onboarding takes too long because institutional knowledge is hard to find
• You need enterprise-grade security with permissions inheritance across every connected platform
• Your teams waste hours per week searching for information that exists but can't be found

Glean is not for you if:

• You're a small business under 100 employees — the minimum contract and per-seat pricing won't make financial sense
• Your organisation runs primarily on Microsoft 365 — Copilot will serve you better at a lower price
• Your knowledge management problem is a content problem, not a search problem — if documents don't exist, Glean can't find them
• You want a self-serve product you can trial without a sales conversation — Glean requires enterprise procurement
• You need a tool for external research or internet search — Glean searches your internal data only

How to Get Started

Step 1: Audit your information landscape. Before talking to Glean's sales team, document every tool your organisation uses, approximate data volumes, and the specific search/knowledge problems you're trying to solve. This makes the scoping conversation dramatically more productive.

Step 2: Identify your highest-value connectors. You don't need to connect all 100+ platforms on day one. Start with the 5-8 tools where your teams spend the most time searching — typically Slack, Google Drive or SharePoint, Confluence or Notion, Jira, and your CRM.

Step 3: Run a pilot with one department. Most successful Glean deployments start with a 50-100 person pilot in a specific team — customer support, engineering, or sales — where the search problem is most acute and the ROI is easiest to measure.

Step 4: Negotiate your contract carefully. Get a renewal price cap. Clarify which add-ons (Protect Plus, Advanced AI) are included and which cost extra. Understand the implementation timeline and what support is included.

Step 5: Measure before and after. Track time-to-find-information metrics, duplicate work reduction, and onboarding speed before and after deployment. Glean's ROI argument is strong, but you need your own data to justify renewal.

The Verdict

Glean is the most capable enterprise search platform available in 2026. The combination of 100+ connectors, a genuinely intelligent knowledge graph, permissions-aware security, AI assistants, and agent capabilities makes it the category leader — and the $7.2 billion valuation reflects the market's confidence.

The price is real. The minimum contract is real. The enterprise sales process is real. This isn't a tool you sign up for on a Tuesday afternoon. But for mid-to-large organisations where information fragmentation is costing millions in lost productivity — and it usually is, whether leadership acknowledges it or not — Glean pays for itself.

The question isn't whether enterprise AI search is valuable. It's whether your organisation is large enough and complex enough to justify Glean's price tag. If you have 200+ employees using 10+ tools and your teams regularly can't find what they need, the answer is almost certainly yes.

Digital by Default helps businesses evaluate and deploy enterprise AI tools — from search platforms like Glean to full AI transformation strategies. If your team is losing hours to information fragmentation and you want to understand your options, [get in touch](/contact).