Official source · from €9.99
No yūgen kaisha (有限会社, YK) has been formed since 2006 — the form was closed when Japan's Companies Act arrived, and existing YKs live on as special companies under KK rules while keeping their old name. A YK suffix therefore proves one thing instantly: the company predates 2006. Order its official record in minutes.
✓ One-time payment · no account · no subscription
Because the form closed in 2006, a YK is by definition a company with two decades or more of history — often a small, stable, family-run business that saw no reason to rebrand as a KK. That longevity is a data point, but it is not a status check: YKs dissolve, relocate and change hands like any company.
The register record grounds it: current registered name, head office, corporate number and registration details, fetched live at the moment you order.
The official record for the YK — identity, corporate number, head office and published details — as structured data plus a branded PDF, emailed in minutes. From €9.99, one-time payment, no subscription.
No. Formation ended in 2006; every genuine YK is a survivor operating as a "special" company under the current law. A recently formed entity presenting itself as a YK deserves hard questions.
Fully — existing YKs continue indefinitely with limited liability and their registered identity intact. Many small family firms simply never bothered converting to KK.
The registered name, 13-digit corporate number, head office and registration details from the official record — the same verifiable substance as any Japanese company, plus the implicit vintage signal of the form itself.
companyinfo.me is an independent information service and is not affiliated with any government authority or official register.