Finnish Business Register API — YTJ Company Lookup
YTJ is the joint business information system run by the Finnish Patent and Registration Office and the Tax Administration — one identifier, one record, two authorities behind it.
- You send
- A Finnish Business ID
- You get back
- The YTJ record, including which registers the entity is entered in
- Coverage
- Finland — entities on YTJ, the Finnish Business Information System.
- Price
- 5 pts — $5 per 1,000
- Charged only when the record resolves. A lookup that finds nothing is not billed.
Ways to get this data
Three approaches teams use today, and where each one runs into trouble.
| Approach | What it takes | Cost | Trade-off |
|---|---|---|---|
| YTJ, the Finnish Business Information System directly | Search YTJ and read the entity page by hand | Usually free, sometimes per-document | A different interface, language and data shape for every country you add |
| Collecting it yourself | Build and host a crawler per register, then keep each one alive | Infrastructure and maintenance | Registers change their pages without warning, and nobody is on the hook when yours breaks |
| NeuralVerge | One request, the same shape as every other source in the catalog | $5 per 1,000, misses not billed | Covers Finland — other countries are separate sources with the same request format |
What you get back
Every field the response returns.
| Field | Type | Description |
|---|---|---|
company_details | object | Business ID, name, company form, main line of business, languages, registered office, registration date and status. |
registrations | array | Which official registers the entity is entered in, with status and dates. |
registrations[].register | string | The register, for example trade, VAT or prepayment. |
registrations[].status | string | Whether the entity is currently entered in it. |
business_id_history | array | Changes to the Business ID over time, with date and change type. |
Every source answers in the same shape: a session id, a readable human summary, a structured machine object and the points the call consumed. Learn it once and it holds across every source in the catalog.
How to run it
The same lookup works from the app, the API, or as a tool an agent can call mid-task.
A JSON schema passed as extract_schema_json pins the response shape, which is why one endpoint serves every register in the catalog — only the URL and the schema change. The Get API Code button in the app hands you the complete command with the schema already filled in.
curl -X POST https://api.neuralverge.ai/functions/v1/run-extract \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"url": "https://tietopalvelu.ytj.fi/yritys/1000000-0",
"instructions": "Extract data from YTJ, the Finnish Business Information System",
"settings": {
"country_code": "us",
"extract_schema_json": "{ ... }"
}
}'What teams use it for
Where this field shows up in an actual workflow.
Check the entity is entered in the registers that matter before you transact.
The registrations list answers the tax-status question directly.
Business ID history catches companies that changed name or form.
Segment by company form and main line of business across the Finnish market.
Coverage, freshness and limits
What this source covers, how fresh it is, and where it stops.
Finland — entities on YTJ, the Finnish Business Information System.
Read at request time, so the answer reflects the register as it stands when you ask.
YTJ, the Finnish Business Information System is a public register. Every response carries the source URL it was read from and a session id you can trace.
- —Only entities with a Finnish Business ID resolve here.
- —Much of the record is published in Finnish or Swedish.
- —YTJ holds registration facts, not financial statements.
Questions, answered
A seven-digit number with a check digit, written as 1234567-8, assigned to every business and organisation in Finland. It is the key you pass to this source.
Related sources
Try ytj company on your own data
One request format across every source in the catalog.