Castor
CastorDoc, now rebranded as Catalog after its acquisition by Coalesce in 2025, is a data catalog and governance platform with an integrated AI assistant.
Profile
CastorDoc provides a data catalog and AI assistant that helps business users find, understand, and query company data without needing to write SQL or ask data engineers for help.
CastorDoc, now rebranded as Catalog after its acquisition by Coalesce in 2025, is a data catalog and governance platform with an integrated AI assistant. The company was founded by a team including former data engineers and product leaders, though specific founder names and founding year are not disclosed in the available materials. Its core product is a data catalog that combines a business glossary, data lineage, and security/compliance features with a conversational AI layer that lets users search for data, ask questions in plain language, and generate SQL.
The platform integrates with Snowflake, Redshift, and other major data warehouses. CastorDoc's customer base includes mid-market and enterprise data teams, with named clients such as Veolia, Stuart, Vestiaire Collective, and Printify. The company claims a 4.8 rating on Gartner Peer Insights and cites customer-reported metrics including a 90% reduction in data-related Slack pings and a 20% increase in team productivity.
In 2025, CastorDoc was acquired by Coalesce, a data transformation platform, and rebranded as Coalesce Catalog. Financial terms of the acquisition were not disclosed. The company has not publicly disclosed its own revenue or funding rounds; the only Castor with public financials is Castor Maritime Inc. (NASDAQ: CTRM), a separate shipping company. As of mid-2025, CastorDoc's product continues to operate under the Coalesce umbrella, with the same core features and team.
Who buys this
- Mid-market and enterprise data teams looking to reduce ad-hoc data requests
- Companies with complex data stacks needing governance, lineage, and compliance
- Organizations adopting self-service analytics who want to maintain data trust and control
- Data platform and business intelligence leads in retail, logistics, and sustainability sectors
Publicly disclosed clients
- Veolia
- Stuart
- Vestiaire Collective
- Printify
Strengths and what to watch
Strengths
- Integrated AI assistant that allows natural-language querying and SQL generation, reducing dependency on data engineering teams
- Strong customer-reported outcomes, including a 90% drop in data-related Slack pings and a 20% productivity increase
- Acquisition by Coalesce provides distribution, integration with a data transformation platform, and a larger customer base
Watch for
- Product rebranding and integration risk: CastorDoc is now Coalesce Catalog, which may create confusion or feature overlap with Coalesce's existing offerings
- No publicly disclosed revenue, funding, or headcount numbers, making it difficult to assess financial health or growth trajectory
- Competition from established data catalog vendors like Alation, Atlan, and Collibra, which have larger market share and more enterprise references
Key Information
- Industry
- Data Governance & Catalog
- Founded
- 2019
- Headquarters
- Paris
Frequently Asked Questions
What is CastorDoc and what does it do?
CastorDoc is a data catalog and governance platform with an AI assistant. It helps business users find, understand, and query company data using plain language, without needing SQL skills or help from data engineers. It integrates with Snowflake and Redshift.
Who acquired CastorDoc and when?
CastorDoc was acquired by Coalesce, a data transformation platform, in 2025. After the acquisition, CastorDoc was rebranded as Coalesce Catalog. The financial terms of the deal were not publicly disclosed.
What are the key features of CastorDoc?
CastorDoc combines a business glossary, data lineage, and security features with a conversational AI layer. Users can search for data, ask questions in natural language, and generate SQL. The platform integrates with major data warehouses like Snowflake and Redshift.
What customer results does CastorDoc report?
CastorDoc claims a 4.8 rating on Gartner Peer Insights. Customers report a 90% reduction in data-related Slack pings and a 20% increase in team productivity. Named clients include Veolia, Stuart, Vestiaire Collective, and Printify.
How does CastorDoc compare to Alation or Atlan?
CastorDoc competes with established data catalog vendors like Alation, Atlan, and Collibra, which have larger market share and more enterprise references. CastorDoc differentiates with its integrated AI assistant that enables natural-language querying and SQL generation.
Is CastorDoc the same as Castor Maritime or Castor clinical trials?
No. CastorDoc is a data catalog company now called Coalesce Catalog. Castor Maritime Inc. is a separate shipping company with public financials. Castor is also a separate clinical trial company. These are unrelated entities.
Sources
- www.castordoc.com — Product description, features, customer logos, Gartner rating, and rebranding to Coalesce Catalog
- coalesce.io — Acquisition announcement and rebranding details
- techcrunch.com — Confirms Castor is also the name of a separate clinical trial company, not the same entity as CastorDoc
- www.stocktitan.net — Confirms Castor Maritime Inc. is a separate shipping company with public financials, not related to CastorDoc