Colorado Business Entities

The Colorado Secretary of State keeps the register of every corporation, limited liability company, nonprofit, partnership and other entity formed in Colorado or registered to do business there, and keeps it in every status: in good standing, delinquent, dissolved, withdrawn, merged, converted. For each: its name and id, status, type, where and when it was formed, its principal and mailing addresses, and its registered agent with the agent’s addresses. Brought up to date daily.

The whole source, organized and ready to query: every endpoint on this page answers in milliseconds. Every response carries as_of: how current the data is. How datasets work.

Search entities

POST /us/colorado-sos/entities-search/v1 Dataset Searches every entity by any combination of name, status, type, jurisdiction and formation date.

Field	Type	Notes
`query`	string	Optional. Words in the entity’s name. Every word must match; no stemming.
`status`	string	Optional. e.g. `Good Standing`, `Delinquent`, `Voluntarily Dissolved`, `Administratively Dissolved`, `Withdrawn`, `Noncompliant`. Case does not matter.
`entity_type`	string	Optional. The entity type as the register writes it, e.g. `Limited Liability Company`.
`jurisdiction`	string	Optional. Where the entity was formed, e.g. `CO`, `DE`.
`from_date`	string	Optional. The earliest formation date, yyyy-mm-dd.
`to_date`	string	Optional. The latest formation date, yyyy-mm-dd.
`page`	integer	Optional. 1-based page. Default `1`.
`per_page`	integer	Optional. Results per page, 1-50. Default `20`.

curl https://api.croma.run/us/colorado-sos/entities-search/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "query": "acme" }'

Returns as_of, the applied filters, total, page, per_page, total_pages, count and entities[], by name. Every entity carries entity_id, name, status, entity_type, jurisdiction_of_formation, formation_date, principal_address and mailing_address (each { line_1, line_2, city, state, zip, country } or null) and agent ({ name, first_name, middle_name, last_name, suffix, organization_name, principal_address, mailing_address }, or null). Empty fields are null. Statuses and types are upper-cased.

One entity

POST /us/colorado-sos/entity/v1 Dataset Resolves one entity by its id.

Field	Type	Notes
`entity_id`	string	Required. The entity’s id, digits only.

curl https://api.croma.run/us/colorado-sos/entity/v1 \
  -H "Authorization: Bearer $CROMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "entity_id": "19871071914" }'

Returns found, entity_id, as_of and entity (null when not found). Every entity carries entity_id, name, status, entity_type, jurisdiction_of_formation, formation_date, principal_address and mailing_address (each { line_1, line_2, city, state, zip, country } or null) and agent ({ name, first_name, middle_name, last_name, suffix, organization_name, principal_address, mailing_address }, or null). Empty fields are null. Statuses and types are upper-cased.

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Colorado Business Entities

Search entities

One entity

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​Search entities

​One entity

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Search entities

One entity