Europe • ISO BE
Verify Belgium companies via API
The Belgium company data and registry API. Know Your Customer Limited verifies Belgium companies live from the Crossroads Bank for Enterprises, returning company data, controlling parties, shareholders and beneficial owners, and registry documents, with AML screening and ongoing monitoring. Free sandbox available.
What the API returns for Belgium
When you create a KYB case for a company in Belgium, Know Your Customer Limited retrieves data live from the Crossroads Bank for Enterprises. A single integration returns the company record, the controlling parties and individuals, the shareholders and beneficial owners, and the registry documents, with AML screening on the entity and its associated individuals built into the same case.
Belgium data and document availability
What the API makes available for Belgium companies:
| Category | Available |
|---|---|
| Company data | Entity Name, Other Names, Entity Status, Entity Type, Registration Number, Address, Registration Date, Trade Names, Previous Names, Capital, Activity Type |
| Controlling entities & individuals | Name, Role, Appointed On |
| Shareholders & beneficial owners | Name, Share count, Role |
| Documents | Retrieved by default: Registry Extract, Constitution, Annual Accounts, Change of Name Available on demand: None beyond the default set |
AML, sanctions, and PEP screening on the entity and its associated individuals, and ongoing live monitoring with change alerts, are available for Belgium as part of the same case.
Registry availability for Belgium
| Last measured | 2026-09-16 (UTC) |
| Current status | Available |
| Availability, 30 days | 99.6% (222 of 223 checks) |
| Availability, 7 days | 100% (46 of 46 checks) |
| Typical search time (median), 30 days | 12.1 s |
| Slow-case search time (95th percentile), 30 days | 15.9 s |
| Checks per day | 7.4 |
Source: Registry Search API.
Automated test searches against the live registry. Not a service-level commitment.
How to verify a company in Belgium via API
The following example shows the complete flow: authenticate, search the Belgium registry, create a KYB case, and retrieve company data and the ownership org-chart. All calls go to the sandbox base URL for testing.
The sandbox at https://api.knowyourcustomer.dev is free. Request access to get your client credentials.
# 1. Authenticate (OAuth2 client credentials)
curl -X POST https://api.knowyourcustomer.dev/connect/token \
-d "grant_type=client_credentials" \
-d "client_id=YOUR_CLIENT_ID" \
-d "client_secret=YOUR_CLIENT_SECRET" \
-d "scope=PublicApi"
# 2. Search the Belgium registry
curl -X POST https://api.knowyourcustomer.dev/v2/Companies/search \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-d '{"name":"Belgium National Bank","codeiso31662":"BE"}'
# 3. Create a KYB case
curl -X POST https://api.knowyourcustomer.dev/v2/Companies \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-d '{"rawname":"Belgium National Bank","codeiso31662":"BE"}'
# 4. Retrieve company data and status
curl https://api.knowyourcustomer.dev/v2/Companies/CASE_ID \
-H "Authorization: Bearer $TOKEN"
# 5. Get the beneficial ownership org-chart
curl https://api.knowyourcustomer.dev/v2/Companies/CASE_ID/org-chart \
-H "Authorization: Bearer $TOKEN"
Replace YOUR_CLIENT_ID and YOUR_CLIENT_SECRET with your sandbox credentials, and CASE_ID with the caseCommonId returned in step 3.
Frequently asked questions about the Belgium KYB API
What company data can I verify in Belgium?
For a company in Belgium, the API returns the company record read live from the Crossroads Bank for Enterprises: the entity name, type, status, registration number, address, and registration date, along with the controlling parties, the shareholders and beneficial owners, and the available registry documents. See the table above for the full Belgium availability.
Does the API return beneficial ownership (UBO) data for Belgium companies?
The API resolves the controlling parties, shareholders, and beneficial owners for Belgium companies and exposes them as a recursive ownership org-chart (GET /v2/Companies/{caseCommonId}/org-chart), tracing control through holding companies to the individual beneficial owners. The depth available depends on what the Crossroads Bank for Enterprises discloses. See the UBO API.
Can I retrieve official registry documents for Belgium companies?
Yes. The default document set for Belgium includes Registry Extract, Constitution, Annual Accounts, Change of Name, retrieved by default. List and download them with the documents endpoint (GET /v2/Companies/{caseCommonId}/documents).
Is there a free sandbox for testing Belgium company verification?
Yes. The Know Your Customer sandbox at https://api.knowyourcustomer.dev is a free, full-fidelity test environment. Request free sandbox access to start testing.
Is this a KYB or a KYC API?
Both. It is a business verification (KYB) API for corporate KYC: you verify companies from official Belgium registry data, resolve controlling parties and beneficial owners, and screen for AML. When you need to check the people behind a company, the same company data API covers identity verification (IDV). One integration, one Belgium company data and registry API.
The Know Your Customer Limited API covers 155 jurisdictions worldwide, including Belgium. One integration, one set of credentials, one response schema across all markets. Browse all covered jurisdictions.
Related coverage: United Kingdom • Aaland Islands • Albania • Austria • Belarus • Bosnia and Herzegovina.
Ready to verify Belgium companies?
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