Shape, check digit, accepted and refused examples and the API call for Federal corporation number in Canada. Every example on this page is run through the same validators as the free identifier validator, so a value shown as accepted is a value the validator accepts.
| Field | Value |
|---|---|
| Register | Corporations Canada |
| Shape | N{1,6}-C |
| Check digit | Advisory. 2 to 8 digits, written NNNNNN-N. Weights 7,6,5,4,3,2 over the six digits before the last; check = 11 minus the sum mod 11 (10 reads as 0, 11 as 1). Inferred from the register, not documented, so advisory. |
| Worked example (accepted) | 426160-7 |
| Normalised form | 426160-7 |
| Also accepted as input | 4261607 · #4261607 |
| A one-character slip | 426160-8 is accepted with a warning |
| Regex (normalised form) | ^[0-9]{1,7}-[0-9]$ |
| API call | GET /companies/search?country=CA&company_number=426160-7 |
| VAT number | The register data holds no VAT number for this identifier. |
Nine digits is a Business Number (searched with business_number), not a corporation number. Federal corporations only; provincial corporations are never served.
curl "https://api.prometiam.com/functions/v1/risk-api/companies/search?country=CA&company_number=426160-7" \ -H "Authorization: Bearer YOUR_API_KEY"
Shape notation: N digit · L letter · X digit or letter · C check digit or character · {n} repeat n times.
A valid shape and check digit prove that a number is well-formed, not that a company holds it. Only a lookup in the register answers that.
Register data that the API serves for Canada carries this credit:
Contains information licensed under the Open Government Licence – Canada (Corporations Canada, Innovation, Science and Economic Development Canada). Adapted by Prometiam.
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