The Bank of Yokohama, Ltd.
Native name
Kabushiki Gaisha Yokohama Ginkō
TypePublic (Kabushiki gaisha)
TYO: 8332 (until March 2016)
IndustryFinancial services
  • Dai-Ni Bank
  • Shichijushi Bank
  • Yokohama Savings Bank
FoundedDecember 16, 1920; 103 years ago (1920-12-16)
Number of locations
637 (March 2023)[1]
Area served
Key people
Tatsuya Kataoka (President)
RevenueIncrease JP¥244.959 billion (March 2023)[2]
Increase JP¥64.624 billion (March 2023)[2]
Increase JP¥46.156 billion (March 2023)[2]
AUMIncrease JP¥16.5177 trillion (March 2023)[2]
Total assetsIncrease JP¥23.7467 trillion (March 2023)[2]
Number of employees
4003 (March 2023)[1]
ParentConcordia Financial Group (TYO: 7186)
SubsidiariesSubsidiaries of Bank of Yokohama (en)
Footnotes / references
[1] [2]

The Bank of Yokohama, Ltd. (株式会社横浜銀行, Kabushiki gaisha Yokohama Ginkō, BOY) is the largest regional bank in Japan. It is based and headquartered in Yokohama, and operates its businesses mainly in Kanagawa Prefecture and southwestern Tokyo. The bank is often called Hamagin (浜銀) for short by the locals. It has 632 domestic offices and five overseas offices (Shanghai, Singapore, Hong Kong, Bangkok and New York).[3] It is a wholly owned subsidiary and the core arm of Concordia Financial Group, a Japanese bank holding company since 2016.[4]


The bank was founded in 1920 as a regional bank to serve customers in Kanagawa Prefecture and southwestern Tokyo. It was formed in the wake of the collapse of several existing banks in the region, one of which (Dai-Ni Bank) began operations in 1869 as Yokohama Bank (横浜為替会社), the first modern financial institution in Japan; consequentially, Bank of Yokohama claims to have the longest history of any Japanese bank.[5]

In 2015, Bank of Yokohama announced a merger with the smaller Higashi-Nippon Bank to create Concordia Financial Group, the largest regional bank holding company in Japan.[6] Upon completion of this transaction in March 2016, Bank of Yokohama was de-listed, and Concordia took its place as a constituent of the Nikkei 225 stock market index.[7]

Group Companies

Subsidiaries and Affiliates

See also


  1. ^ a b c "Corporate Data". October 1, 2023.
  2. ^ a b c d e f "Consolidated Financial Results for the fiscal year ended March 31, 2023" (PDF). March 31, 2023.
  3. ^ "Corporate Data|Bank of Yokohama". Retrieved 2023-10-09.
  4. ^ "History | Concordia Financial Group". Retrieved 2023-10-09.
  5. ^ "横浜銀行の歴史|会社情報|横浜銀行". Archived from the original on 2016-11-29. Retrieved 2016-11-29.
  6. ^ "Bank of Yokohama says to merge with smaller Japan regional bank". Reuters. 2016-09-08. Retrieved 2016-11-29.
  7. ^ "Changes to the Nikkei Indices" (PDF).