Group Companies
As of April 1, 2026
Company name
In–house company/unit1
Main business
Date of establishment
Capital (million)
Percentage of voting rights held by Mizuho Financial Group (%)5
Mizuho Innovation Frontier Co., Ltd.
Other (Financial Control & Accounting G)
Investment
April 3, 2023
JPY 490
100.0
Other (IT & Systems G)
IT system administration and management
June 24, 1985
JPY 20
35.0
- In-house company/unit acronyms: RBC: Retail & Business Banking Company, CIBC: Corporate & Investment Banking Company, GCIBC: Global Corporate & Investment Banking Company, AMC: Asset Management Company, GTU: Global Transaction Banking Unit, RCU: Research & Consulting Unit
- Mizuho Bank conducts business pertaining to all of the in-house companies and units.
- Mizuho Trust & Banking conducts business pertaining to all of the in-house companies and units except the GCIBC, the GTU, and the RCU.
- Mizuho Securities conducts business pertaining to all of the in-house companies and units except the GTU.
- In the column showing percentage of voting rights, figures in parentheses show the percentage of voting rights held indirectly through subsidiaries and affiliates.
Group subsidiaries and affiliates (Japanese text only) (PDF/684KB)