1. Glean — Best Overall for Enterprise Knowledge Search

Glean is built specifically around enterprise knowledge: combining AI-powered search across all workplace apps, permissions-aware retrieval, and an agent-building layer that allows organizations to create custom knowledge agents grounded in their specific content. It connects knowledge across a company's entire application landscape and provides real-time, accurate answers to employee questions regardless of where the source information lives.

1. Best for: organizations whose primary problem is 'knowledge is everywhere and employees can't find it'
2. Strength: broad application connectors, permissions-aware search, Glean Agents for custom knowledge workflows, strong enterprise security
3. Choose Glean if: your knowledge management challenge is cross-app search and employee self-service

2. Microsoft 365 Copilot + SharePoint Knowledge Agent

Microsoft says every SharePoint site can have an agent, making SharePoint content directly queryable through Copilot. The Knowledge Agent in SharePoint is designed to enrich and organize content for reliable Copilot responses. For organizations whose knowledge lives primarily in SharePoint, Teams, and Microsoft 365, this is the most natural integration point.

1. Best for: Microsoft-centric enterprises with SharePoint as the primary knowledge repository
2. Strength: native Microsoft integration, broad M365 workflow connection, no new platform to deploy
3. Choose Microsoft if: your organization already uses SharePoint extensively and wants knowledge agents without changing platforms
4. Important note: SharePoint Knowledge Agent features were in public preview as of 2025; verify current availability for your tenant and license

3. Google Gemini Enterprise — Best for Google Cloud Organizations

Google Gemini Enterprise is positioned as a unified intranet search, AI assistant, and agentic platform. It supports broad connectors to Confluence, Jira, SharePoint, and ServiceNow, and includes customizable RAG agents grounded on enterprise data with a no-code agent builder. Strong for organizations wanting a comprehensive enterprise search layer on top of Google Cloud infrastructure.

1. .Best for: organizations running on Google Cloud who want broad enterprise search and agent orchestration
2. Strength: wide third-party connectors, no-code agent builder, strong search across Google Workspace
3. Choose Google if: your primary infrastructure is Google Cloud and you want an integrated search + agent platform

4. Atlassian Rovo — Best for Product and Engineering Knowledge

Atlassian Rovo combines Search, Chat, Agents, and Studio specifically designed for organizations whose operational knowledge centers in Jira and Confluence. It uses approved organizational knowledge and connected third-party apps as its source material, and is particularly effective for product, engineering, and IT organizations that already run on Atlassian.

1. Best for: companies where Confluence is the knowledge hub and Jira is where work happens
2. Strength: native Atlassian integration, strong for technical and product team knowledge
3. Choose Rovo if: your most critical knowledge lives in Confluence and Jira, and your users are primarily technical teams

5. ServiceNow — Best for Service-Embedded Knowledge

ServiceNow's knowledge management strength is not universal workplace search — it is knowledge embedded in service operations. Its AI Search and employee/service products are designed around knowledge that must drive action: routing service requests, resolving ITSM tickets, answering HR queries, and executing customer service workflows. It is the strongest option when knowledge management is tightly coupled to service delivery.

1. Best for: IT, HR, and customer service teams where knowledge must drive workflow actions, not just discovery
2. Strength: tight integration with ITSM/HRSM workflows, strong for service delivery use cases
3. Choose ServiceNow if: your knowledge management is fundamentally about powering service execution, not general employee discovery

Other Notable Platforms

Guru (proactive in-workflow knowledge delivery, strong Slack and Teams integration), Bloomfire (AI-powered knowledge sharing with smart content recommendations), and Atlassian Confluence with AI (collaborative workspace with AI summarization and search) are strong alternatives depending on team size and budget.