Alation
Metadata Plane · Data Catalogues & Discovery
Enterprise data catalogue for search, discovery, stewardship and governance.
- Commercial
Metadata Plane · Data Catalogues & Discovery
Catalogue and governance platform built on a federated knowledge graph, covering discovery, lineage, data products and contracts, with a marketplace and agent-facing access to its metadata.
Worth knowing before you start: Actian is not the company you may remember. It is long established in databases — the Ingres and Vector lineage — but actian.com now leads with the Actian Data Intelligence Platform, a catalogue and governance product, and the database line sits behind it. This profile covers the data intelligence platform only.
The technical distinction is a federated knowledge graph rather than a conventional metadata store. The claim attached to it is that AI assistants and agents can reach trusted metadata, business definitions, lineage, policies and the relationships between data through open standards, which is a stronger proposition for agent use than a catalogue designed for humans to browse.
It organises itself around discover, trust and activate. Discovery is search across the estate. Trust is automated lineage, real-time observability and a per-dataset trust score, which the company frames pointedly — know a dataset's trust score before you use it, not after it breaks something. Activate is where it goes beyond most catalogues: data products are packaged through guided wizards, the data contract is generated automatically, and the result is published to a marketplace.
That automatic contract generation is the most distinctive feature here. Most catalogues document what exists; this one produces the artefact that governs it.
Three delivery details are unusually concrete. Custom AI agents return answers with definitions, ownership and lineage attached rather than a bare value. Pre-trained agents turn business questions into governed SQL with controls enforced on the query rather than applied afterwards. And a Chrome plugin surfaces business definitions inside Tableau and Power BI, so a reader checks what a metric means without leaving the dashboard.
No pricing is published.
The same headings are used for every data catalogues & discovery entry, so two tools can be read side by side.
Price on request
Not published. Actian offers interactive product tours and demos rather than a price list, so licensing model and cost both require a sales conversation. Note that the wider Actian portfolio is priced separately; this entry covers the data intelligence platform only.
Actian is a long-established data vendor whose current lead product is the Actian Data Intelligence Platform, a catalogue and governance platform built on a federated knowledge graph. Its wider portfolio still includes the analytics and database line it is historically known for, sold separately. Public materials emphasise agent access to governed metadata, automated data contracts and a data marketplace, and cite an installed base of 42 million users across more than 20,000 customers, including 25 of the Fortune 100. No pricing is published.
Metadata Plane · Data Catalogues & Discovery
Enterprise data catalogue for search, discovery, stewardship and governance.

Metadata Plane · Data Catalogues & Discovery
Data discovery tool built at Lyft, with search ranked by usage. Archived in September 2026 and no longer maintained; listed for reference and migration planning.
Metadata Plane · Data Catalogues & Discovery
Active metadata platform for data cataloguing, discovery and governance.
Metadata Plane · Data Catalogues & Discovery
Data catalogue, documentation, lineage and quality platform pitched as lightweight, priced per editor with unlimited viewers and published list prices rather than quote-only.
Metadata Plane · Data Catalogues & Discovery
Data catalogue and governance platform positioning itself as a context engine, covering discovery, business meaning, lineage and AI-ready data context for both people and agents.
Metadata Plane · Data Catalogues & Discovery
Open-source metadata platform for discovery, lineage and governance, with a managed cloud offering.

Metadata Plane · Data Catalogues & Discovery
Open-source metadata platform for discovery, lineage, data quality and collaboration.
Drafted with AI assistance and checked against the vendor’s own documentation.