Notion

Notion operates an AI-powered workspace that brings notes, documents, databases, and wikis together in one unified system instead of spreading these functions across separate tools. Its approach breaks down into three areas: capturing knowledge centrally, finding cited answers directly within your own knowledge base, and automating recurring tasks through AI agents that run in the background.

The core workspace is complemented by Notion Calendar, enterprise search across connected tools, automated AI meeting notes, and Connections for integrating external applications. Through the official Notion MCP server, pages, databases, and content can be read and edited directly from AI agents, instead of operating the Notion interface by hand.

The business model follows a freemium approach: a free tier covers the basics, while enterprise customers get additional features like advanced permissions and security through custom demos.

According to the company, 98% of companies on the Forbes Cloud 100 use Notion, with notable customers including OpenAI, Figma, Vercel, and NVIDIA — a sign of how deeply the tool has become embedded even in technically oriented organizations, despite originally being better known for personal notes and small teams.

Because Notion exposes nearly all views and databases through a public API, teams can build their own automations and integrations instead of being limited to a fixed set of built-in features.