Data catalogs & discovery · Alation, Inc.

Alation

Enterprise data catalog with AI-assisted search, lineage and stewardship workflows for finding and trusting data.

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Alation is an enterprise data catalog that indexes tables, dashboards, queries and documents so people can search for and understand data the way they search the web. It combines automated metadata harvesting with human curation: stewards can certify trusted datasets, write glossary definitions and set policies, while an AI assistant answers natural-language questions over the catalog and suggests documentation. Lineage is captured at the table and column level to support impact analysis and compliance reviews. Alation is sold as a managed cloud service or deployed in a customer's own environment, and it is typically adopted by large, multi-team organizations that need a governed system of record for what data exists, who owns it, and whether it can be trusted for a given use case.

At a glance

Vendor Alation, Inc.
Pricing model Quote only
Free tier No
Deployment Cloud, Self-hosted
Open source No
Best for Large enterprises standardizing data discovery and governance across many data sources and teams.

Pricing

Custom quote based on data sources, users and modules; no public price list.

Checked on the vendor's own page on September 21, 2026: no prices are published. Expect to be quoted.

Features

  • Search-first data and dashboard catalog
  • Automated table and column-level lineage
  • AI-assisted natural-language search and documentation
  • Business glossary and certification workflows
  • Data quality flagging and trust signals
  • Policy and stewardship workflows
  • Data access request and marketplace features

Integrations

Profile last reviewed September 21, 2026

Alternatives

Collibra Data Intelligence Cloud combining catalog, business glossary, governance workflows and lineage for regulated enterprises. Atlan API-first, AI-assisted metadata catalog with automated lineage and Slack-style collaboration for data teams. data.world Cloud data catalog built on a knowledge-graph model with built-in SQL querying and a business glossary.

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Terms to know

Data catalog A searchable inventory of an organization's data assets, with descriptions, ownership and usage attached. Data governance The policies, roles and processes that determine how data is defined, owned, accessed and kept compliant. Data lineage A traceable record of where data came from, how it was transformed, and where it is used downstream. AI copilot An AI tool embedded in a work application that assists a human with suggestions or drafts, rather than working unsupervised. Business glossary A controlled list of business terms and their agreed definitions, kept separate from the technical fields that implement them. Data quality The degree to which data is accurate, complete, consistent and fit for the purpose it is being used for.

Related guides

How to choose a data catalog Pick a data catalog by who has to document it, how lineage gets built, and whether your organization needs governed workflow or fast, automated discovery. How to establish data governance A minimum viable governance programme — ownership, a catalog, access rules and stewardship — before you need it for a compliance request.