Hamagin Research Institute

Wiki route

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 Yokohama Bank Leasing. 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

Item	Notes
Legal name	株式会社浜銀総合研究所 (はまぎん総合研究所)
English name	Yokohama Bank Research Institute, Ltd. / Hamagin Research Institute
Business model	Think tank / economic research / management consulting / human-resource training (no banking license)
Group boundary	yokohama-bank consolidated subsidiary → [[regional-banks/concordia-fg
Wiki role	Regional-bank FG think-tank subsidiary anchor (Kanagawa・Tokyo-metropolitan base)

2. Shareholding tree

[[regional-banks/concordia-fg|横浜フィナンシャルグループ (YFG, 旧 CFG)]] (holding company・TSE PRIME 7186)
  ├── [[regional-banks/yokohama-bank|横浜銀行]] (100%) ── Kanagawa Prefecture base・regional bank No.1  tier
  │     ├── [[leasing-firms/yokohama-bank-leasing|横浜銀リース]] (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)
  └── [[regional-banks/higashi-nippon-bank|東日本銀行]] (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

Item	Overview	Source
Establishment	1988-07-21	Official company overview
Capital	1 億円	Official company overview
Number of employees	157 名 (as of 2025-10-01)	Official company overview
Main business area	Kanagawa Prefecture・Tokyo metropolitan area (concordia-fg base) + nationwide consulting expansion	Official company overview
Business domains	Economic research, regional analysis, management consulting, human-resource training, policy proposals	Official company overview
Bank linkage	Provides advisory to yokohama-bank / higashi-nippon-bank customers	—
Main commissioning entities	Kanagawa Prefecture, Yokohama City, Kawasaki City, Sagamihara City, other municipalities in the prefecture, mid-tier companies	Official company overview
Parent company	yokohama-bank consolidated subsidiary (concordia-fg group)	Yokohama Bank group company guide

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

Segment	Characteristics
Economic research	Kanagawa Prefecture economic monthly report, corporate business-sentiment survey, industry-trend analysis
Regional analysis	Analysis of municipal economy・industrial structure・demographic dynamics within the prefecture
Management consulting	Business-plan・organizational-reform・DX-promotion support for mid-tier companies
Human-resource development	Bank-staff training, in-house corporate training, successor-development programs
Policy proposals	Policy proposals・public-plan formulation support for Kanagawa Prefecture・municipalities
Industrial promotion	Tourism promotion・regional branding・smart cities, etc.

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

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)

[!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).