How to Verify a Japanese Company Is Legitimate

Why Verification Matters

Before entering into a business relationship, investment, or acquisition involving a Japanese company, verifying its legitimacy is essential. Japan has a well-developed system of public corporate records that makes basic verification straightforward, but knowing which records to check and how to interpret them requires some familiarity with the Japanese corporate registry system.

Common scenarios that require verification include: evaluating a potential business partner, conducting pre-investment due diligence, confirming a supplier's legal standing, and checking the background of a company before signing a contract. The process described below works for both KK (株式会社) and GK (合同会社) entities.

Step 1: Look Up the Corporate Number (法人番号)

Step 2: Obtain a Registry Certificate (履歴事項全部証明書)

Step 3: Check Tax Clearance (納税証明書)

Step 4: Review Financial Statements (決算書)

Red Flags to Watch For

When reviewing corporate records, certain patterns should raise concerns about a company's legitimacy or stability:

• Rapid director turnover. Directors joining and leaving within short periods can indicate internal conflicts, management instability, or a shell company being passed between operators. Stable companies tend to have consistent leadership over multiple years.
• Capital reductions. While capital reductions can be legitimate (for restructuring purposes), unexplained capital reductions may indicate financial distress or an attempt to return capital to shareholders before creditor claims materialize.
• Very recent incorporation. A company incorporated only weeks or months before approaching you for a significant transaction warrants extra scrutiny. Check whether the directors have a track record with other registered entities.
• Registered at a virtual office. Many legitimate companies use virtual office addresses, but if combined with other red flags, a virtual office registration may suggest the company lacks physical operations.
• Mismatched stated capital. If the company claims significant operations but has minimal stated capital (e.g., ¥1), investigate further. While low capital is legally permissible, it may not align with claims of substantial business activity.
• No business purpose alignment. Check that the company's registered business purposes (目的) align with the activities it claims to perform. A company claiming to be in technology consulting but registered only for real estate activities warrants questions.
• Outstanding tax debts. A company that cannot produce a Type 3 tax clearance certificate (confirming no outstanding debts) may have serious financial or compliance issues.

Online Verification Tools

法人番号公表サイト (Corporate Number Publication Site)

Operated by the National Tax Agency, this free service allows you to search for any registered corporation by name, address, or corporate number. It confirms that a company is registered and shows its basic information. Available at houjin-bangou.nta.go.jp with an English-language option.

EDINET (Electronic Disclosure for Investors' NETwork)

Operated by the Financial Services Agency (金融庁), EDINET provides access to financial reports filed by publicly traded companies and other reporting entities. If the company you are verifying is publicly traded or a large private company that issues securities, its annual securities reports (有価証券報告書) will be available here. Access at disclosure.edinet-fsa.go.jp.

登記情報提供サービス (Registry Information Service)

This online service allows you to view (but not print certified copies of) company registry information for a small fee. It provides immediate access to current registry data without visiting a Legal Affairs Bureau in person. However, for official purposes, you will need a certified registry certificate rather than a screen printout.

gBizINFO

A government portal that aggregates publicly available corporate information from multiple government agencies. It provides basic corporate data, subsidy information, and patent/trademark records in one searchable interface.