Search 600,000+ Finnish companies from the official PRH/YTJ registry. Free, open data — no account required.
PRH Registry
Official data from the Finnish Patent and Registration Office
YTJ System
Business Information System — joint service of PRH and Tax Administration
Open Data
Free access via the avoindata.prh.fi API — no authentication required
Coverage
600,000+ active Finnish companies: Oy, Oyj, FIE, cooperatives and more