Tana

Tana is an AI-powered knowledge management and collaborative workspace platform that structures information using a semantic graph model, enabling teams to build interconnected knowledge bases, workflows, and operational playbooks that combine the flexibility of note-taking tools with the structure of databases and the intelligence of AI assistance. Founded in 2021 and headquartered in Oslo, Norway, Tana has raised approximately $7 million and attracted a growing community of power users in product management, operations, and knowledge-intensive professional workflows who find traditional note-taking and wiki tools too unstructured for managing complex operations.\n\nTana's core innovation is a node-based information architecture where every piece of content — notes, tasks, contacts, documents — is a structured object with properties that can be linked, queried, and referenced across the workspace. AI capabilities within Tana allow users to generate content, extract structure from unstructured notes, run semantic searches, and build AI-powered workflows that process and transform information automatically. Teams use Tana for operational runbooks, franchise and operations documentation, client management, and structured knowledge capture that benefits from both the flexibility of text and the queryability of databases.\n\nTana competes with Notion, Obsidian, Roam Research, and other knowledge management platforms in the productivity and second-brain tool market. Its semantic graph architecture and AI integration position it for users who have outgrown simpler tools, while its relative novelty means it serves a more technically sophisticated early-adopter audience currently. The platform's potential applicability to franchise operations documentation and structured operational workflows has attracted business users seeking alternatives to rigid database tools.