Skip to content
FonteumPublic-records evidence
Fonteum Data GlossaryData Standards

What is a Canadian corporation number?

A Canadian corporation number is the Corporations Canada identifier for a federal corporation record. A Canadian business number, or BN, is a separate Canada Revenue Agency identifier for tax and program accounts. Federal corporation records may include both, so check which number matches the filing or lookup task.

Source file
Not reported
Published
Not reported
Retrieved
Not reported
Snapshot
Not retained for this reference page
Data as of
Not reported

Full name: Corporations Canada Corporation Number and CRA Business Number

Short explanation

Corporations Canada assigns corporation numbers to federal corporation records. The Canada Revenue Agency assigns business numbers for tax and program-account administration. A federal corporation record may carry a corporation number and a BN, but they answer different questions: the corporation number identifies the federal corporate record, while the BN identifies the business for CRA and other program-account purposes.

Related platform: Entity graph - resolved organization records

Last updated: 2026-07-11Reviewed by: Fonteum data standards deskSource-provenance editorial review. Definitions checked against primary federal sources.

How it’s used

  • Federal corporation lookup: Corporations Canada lets users search federal corporations by name, corporation number, or business number.
  • Open Canada bulk records: federal corporation files include corporation number, business number, corporate name, legislation, status, and address fields.
  • Fonteum stores corporation number and BN separately so corporate-registration facts and tax/program-account facts remain traceable to their source.

Frequently asked questions

Is a Canadian corporation number the same as a business number?
No. The corporation number identifies the federal corporation record. The business number is assigned by CRA for tax and program accounts.
How many digits are in a Canadian business number?
A BN starts with a nine-digit registration number and can include a six-character program-account identifier.
Where can you look up a federal Canadian corporation?
Use Corporations Canada's federal corporation search by name, corporation number, or business number.

Explore in Fonteum

How Fonteum sources, resolves, and publishes data tied to this term.

What’s on file, by the numbers

Platform snapshot · 2026-08-30

13.4Mproviders & companiesProviders, organizations, owners, and facilities on file
26.2Msource-linked factsSource-linked field facts in the dated platform snapshot
90sources with dataDistinct snapshot source IDs with at least one positive record count
16fresh sourcesDistinct source IDs whose latest positive-data snapshot falls within the preceding 45 days
111sources integratedActive registry rows; integration does not establish a load
13state Medicaid jurisdictionsDistinct states represented in the state-exclusions serving table

Integrated, with-data, and fresh-observation counts are separate. No platform-wide source-completeness count is published. Completeness is source-specific and must be evaluated against the named source's expected scope. State coverage is a separate jurisdiction measure.

Source authority is record-specific

Use the issuer named on the record.

Fonteum spans federal, state, and global public publishers. A source page or returned record identifies its issuer and dataset where that metadata is available. A platform registry count does not assign every page to one authority or establish loaded, fresh, or complete coverage.

Browse source records and their stated limitations →

Reproducible by design

Inspect the evidence each published figure actually supplies.

Source and date

Research pages expose the named public file and observation date where those fields are available. Source-file SHA-256 coverage is separate; facts do not currently link deterministically to signatures.

Available derivation

Studies with a retained release and committed derivation link the SQL or method used. Other studies state the evidence and reproduction limits they actually have.

Daily observations

Dated table row-count observations can detect local drift. They do not imply that an upstream publisher released or Fonteum ingested new data that day.

Named medical review

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

Read the full provenance and attestation methodology →

Request access