Hamagin Research Institute

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This entry sits under the regional-banks INDEX as the FG-subsidiary think-tank / research operating-company anchor for Yokohama Financial Group (formerly Concordia Financial Group). Read it against parent operating bank Bank of Yokohama and sibling subsidiary Hamagin Finance. For peer regional-bank think-tank context, contrast with major think tanks (Nomura Research Institute, Mitsubishi Research Institute, NRI) and the broader regional-bank consolidation pattern. For system / regulatory boundary see banking index.

TL;DR

Hamagin Research Institute, Ltd. (株式会社はまぎん総合研究所, HRI) is a regional-bank-affiliated think tank, a consolidated subsidiary of Bank of Yokohama (now a subsidiary of Yokohama Financial Group (formerly Concordia Financial Group)), providing Kanagawa Prefecture economic data, regional analysis, consulting for mid-tier companies, human-resource development, and economic forecasting. At a scale of establishment 1988-07-21・capital 1 億円・staff 157 名 (2025-10-01), it also wins research commissions from the Kanagawa prefectural government and municipalities. It is the core subsidiary for “regional-economy intelligence” in the regional-bank FG strategy. ^•

1. License / group boundary

The following table is scoped to public primary sources (yokohama-ri.co.jp, yokohamafg.co.jp, boy.co.jp). It restates licence / structure / product boundaries from those materials and does not invent market share, ranking, or unstated numerical claims. ^↗

2. Shareholding tree

Yokohama Financial Group (formerly Concordia Financial Group) (holding company・TSE PRIME 7186)
  ├── Bank of Yokohama (100%) ── Kanagawa Prefecture base・regional bank No.1  tier
  │     ├── Hamagin Finance (consolidated subsidiary) ── top-tier regional-bank-affiliated leasing
  │     ├── Hamagin Research Institute (consolidated subsidiary, this page) ── regional-bank-affiliated think tank
  │     └── Hamagin Finance (cards・credit guarantee)
  └── The Higashi-Nippon Bank (100%) ── focused on Tokyo SMEs・Tokyo-metropolitan regional bank

Establishment of Hamagin Research Institute

• As a Bank of Yokohama-affiliated think tank, its main business is analysis of the Kanagawa Prefecture economy・Tokyo-metropolitan economy
• Part of the regional-bank-affiliated think-tank establishment boom of the 1980 年s to the 90 s
• Among regional banks, it ranks high in scale・staff・number of commissioned research projects

CFG → YFG name change (2025-10-01)

• Parent holding company concordia-fg was established in 2016-04 through a joint share transfer of yokohama-bank + higashi-nippon-bank
• 2025-10-01: former Concordia FG → Yokohama Financial Group name change
• Hamagin Research Institute itself was unaffected by the name change and continues to operate as a yokohama-bank consolidated subsidiary

4. KPI table

The following table is scoped to public primary sources (yokohama-ri.co.jp, yokohamafg.co.jp, boy.co.jp). It restates licence / structure / product boundaries from those materials and does not invent market share, ranking, or unstated numerical claims. ^↗

Note: For segment-level precise figures on revenue・number of commissions, etc., refer to the concordia-fg securities-report segment information / Hamagin Research Institute official site. The FY net assets recorded on Wikipedia are approximately 110 億円 scale.

5. Business segment map

The following table is scoped to public primary sources (yokohama-ri.co.jp, yokohamafg.co.jp, boy.co.jp). It restates licence / structure / product boundaries from those materials and does not invent market share, ranking, or unstated numerical claims. ^↗

Position within the FG

• Core of regional-economy intelligence: advisory integrating the customer information yokohama-bank holds as a main bank for mid-tier companies + Kanagawa Prefecture economic data
• Consulting function: complementing bank lending + business-succession・M&A brokerage + management-improvement support
• Public-sector linkage: deepening public relationships through research commissions from Kanagawa Prefecture・Yokohama City・Kawasaki City, etc.
• Alignment with the “Yokohama” brand return (2025-10): strengthening the regional think-tank brand in Kanagawa Prefecture・the Tokyo metropolitan area

Competitive landscape

• Major think tanks: Nomura Research Institute (NRI) / Mitsubishi Research Institute / Sumitomo Mitsui DS Research / Mizuho Research & Technologies / Japan Research Institute (JRI) - dominant in nationwide・large-scale・complex projects
• Regional-bank-affiliated think tanks: Chiba Research Institute / Shizuoka Economic Research Institute / Nagoya Research Institute, etc. - same-type model
• State-affiliated: Cabinet Office・METI regional economy bureaus・Teikoku Databank・Tokyo Shoko Research - complement / compete on public data sources

Strengths and weaknesses

• Strengths: yokohama-bank customer base + depth of Kanagawa Prefecture economic data + significance at Tokyo-metropolitan GDP scale + a degree of recognition as a regional-bank-affiliated think tank

7. Regulation・policy

• Supervisor: not the Financial Services Agency (FSA), but subject to general Companies Act regulation as a think-tank operating company
• Regulatory issues:
  • Personal Information Protection Act + My Number Act (handling of research data)
  • Bid・contract appropriateness when commissioned for public research
  • Balance between bank confidentiality obligations + consulting independence (yokohama-bank intra-group conflict of interest)
  • Ethics・transparency in DX promotion + AI-utilizing research

Related

• concordia-fg · yokohama-bank · higashi-nippon-bank · yokohama-bank-leasing
• mebuki-securities · ffg-securities · ibank-marketing · mebuki-lease
• regional-bank-consolidation-pattern · regional-bank-api-digital-partnership-route · INDEX
• regional-banks INDEX

Sources

• Hamagin Research Institute official site (https://www.yokohama-ri.co.jp/)
• Hamagin Research Institute company overview (https://www.yokohama-ri.co.jp/html/company/) — establishment 1988-07-21 / capital 1 億円 / employees 157 名 (2025-10-01)
• Yokohama Financial Group official IR (https://www.yokohamafg.co.jp/)
• Yokohama Bank official site (https://www.boy.co.jp/) / Yokohama Bank group company guide (https://www.boy.co.jp/hojin/guide/index.html) — listed as the think tank of the Yokohama Bank group
• Regional Banks Association of Japan (https://www.chiginkyo.or.jp/, partner-company information)
• Wikipedia: 浜銀総合研究所 / 横浜フィナンシャルグループ / 横浜銀行 (extracted 2026-05-24)

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[!info] 検証状況 confidence: likely (FG think-tank-subsidiary anchor created 2026-05-24). concordia-fg page = holding-company strategy (including the 2025-10 YFG name change), and this page handles the think-tank / research-subsidiary operating boundary. Establishment (1988-07-21) / capital (1 億円) / employees (157 名, 2025-10-01) confirmed in the official company overview. For segment-level precise figures on revenue・number of commissions, etc., refer to the parent concordia-fg securities-report segment information. The “Kanto No.1 tier” ranking claim is isolated in .opinions/JapanFG/hamagin-research.md as it lacks a source (2026-05-29).