The Johnan Shinkin Bank

What The Johnan Shinkin Bank does

The Johnan Shinkin Bank (城南信用金庫, Jonan Shinkin Bank) is a regional cooperative financial institution headquartered in Shinagawa, Tokyo, formally established in 1945 with predecessor roots extending to 1902. It operates as a mutual credit union under the Shinkin Bank Act, with no external shareholders; its members are depositors and borrowers in the Greater Tokyo and Kanagawa region. The bank runs a physical network of more than 86 branches spanning all 23 wards of Tokyo, western Tokyo municipalities, and multiple cities across Kanagawa Prefecture (Yokohama, Kawasaki, Sagamihara, Yamato, Ebina, Atsugi, Zama, Fujisawa), complemented by internet and mobile banking platforms including the proprietary Jonan Banking App and Shiraume J-Net internet-only branch.

The bank's core products are organized around three pillars: (1) deposit and savings products including prize-linked offerings such as Super Dream and Premium Dream, senior-focused products (Silver Dream, Active Senior, Castle Club), and commemorative deposits like the 80th Anniversary Special Deposit and Platinum Seven; (2) loan products including housing loans (up to ¥100M / 50 years), renovation loans, car loans, and ultra-long-term childcare-support education loans (up to 35 years); and (3) digital and support services including internet banking, the mobile app, Bank Pay, Kotora Soukin remittance, the Jonan Consultation Plaza, the "Anytime Peace of Mind" elderly support service, and inheritance procedure handling. The Shinkin Guarantee Fund underwrites most consumer lending, while housing loans are property-collateralized.

The business model is a traditional spread-based retail and SME banking franchise. Primary revenue derives from interest income on personal and business loans, offset by deposit interest expense; secondary revenue comes from fee and commission income (ATM, transfers, loan processing, foreign exchange, safe deposit box rental) and the promotion of prize-linked and preferential savings products (e.g., Platinum Seven, Volunteer Deposit). The GTM motion is community-led, with relationship banking delivered through the dense branch network, lifecycle product positioning, and an 8-year M&A advisory partnership with Strike Group for SME business succession support.

Name

The Johnan Shinkin Bank

Legal name

城南信用金庫 (Jonan Shinkin Bank)

Website

https://jsbank.co.jp

Company type

Private

Founded year

1945

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

The Johnan Shinkin Bank (城南信用金庫) is a Tokyo-based mutual credit union founded in 1945, operating 86+ branches across Tokyo and Kanagawa Prefecture to serve retail individuals across all life stages and local small and medium enterprises with deposits, loans, and advisory services.

Ownership category

akta.pro rank

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices81 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales, Supply Chain

Revenue model

1. Interest Income from Lending: Primary revenue stream from interest earned on personal and business loans including housing loans, education loans, car loans, and business loans
2. Deposit Interest Payments: Customer deposits including savings accounts, time deposits, and investment savings products that generate interest expense
3. Fee and Commission Income: Various banking fees including ATM transaction fees, account management fees, loan processing fees, foreign exchange fees, safe deposit box rental, and other service charges
4. Premium Savings Products: Prize-linked savings products (Super Dream) and special savings products with promotional interest rates

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

The Johnan Shinkin Bank is a regional mutual credit union that accepts deposits (ordinary savings, term deposits, prize-linked deposits, pension accounts) and extends personal and business loans (housing, car, education, renovation, SME financing) to individuals and small-to-medium enterprises across Tokyo and Kanagawa Prefecture. Services are delivered through 86+ physical branches, internet/mobile banking platforms, and a fee-based support suite covering inheritance procedures, elderly care, and M&A advisory for SME business succession.

Product overview

Jonan Shinkin Bank is a regional credit union (信用金庫) serving Tokyo and Kanagawa Prefecture, offering a comprehensive suite of financial products and services organized into three main pillars: (1) Deposit and savings products including prize-linked deposit Super Dream (懸賞金付き定期預金「スーパードリーム」), Premium Dream (プレミアム💎ドリーム), Silver Dream (シルバードリーム), Active Senior (アクティブ☆シニア), Castle Club, Platinum Seven (プラチナ☆セブン), Family Bond (家族の絆), Anshin Settlement Account (あんしん口座), Super Fixed Deposits, and Standard deposits; (2) Loan products including Housing Loans (城南住宅ローン, up to 100 million yen/50 years), Renovation Loans (城南リフォームローン, up to 10 million yen/15 years), Car Loans (城南マイカーローン, up to 15 years), and Childcare Support Education Loans (城南"子育て支援"教育ローン, up to 35 years); and (3) Digital banking via the Jonan Banking App and Personal/Business Internet Banking platforms. The bank also provides elderly support services (いつでも安心サポート), children's savings programs (キッズドリーム/キッズクラブ), inheritance procedures, consultation services, and a network of 86+ branches across the Greater Tokyo and Kanagawa area.

Differentiator

Problem solved

Functional benefit

Brands

• 城南信用金庫: Parent brand / primary commercial name of the credit union operating across Tokyo and Kanagawa.
• しらうめJネット支店 (Shiraume J-Net Branch)

Products and services

• Jonan Housing Loan (城南住宅ローン)

Quantifiable outcome

• Supports regional SME business succession through M&A partnership with Strike Group, displaying achievements at Tokyo headquarters to demonstrate transparency and trust

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• Strike Group Co., Ltd. (ストライクグループ)coreStrategic or Co-development Partner · 7 April 2026Jonan Shinkin Bank maintains an 8-year strategic partnership with Strike Group Co., Ltd. for M&A advisory services supporting regional SME business succession. The bank installed a dedicated display shelf at its Tokyo headquarters to publicly showcase M&A contract achievements facilitated through this collaboration, featuring commemorative acrylic shields with company names. The partnership aims to demonstrate transparency, build trust in the local economy, and support business succession for local companies facing closure risks.

Scale indicators4 records

Recent moves9 records

Expansion highlights4 records

Emerging players

• SBI Sumishin Net Bank: SBI Sumishin Net Bank is a Japanese digital-first bank backed by SBI Holdings and Sumitomo Mitsui Trust, offering online deposit, lending, and mortgage products. It represents the emerging digital-native competitive pressure on community banks like Jonan, particularly in personal deposits and mortgage lending.

Broad incumbents

• Chiba Bank: Chiba Bank is a major regional commercial bank serving the Kanto region with full-scale retail, SME, and corporate banking. While not a cooperative, it competes with Jonan for SME and retail deposits in the broader Greater Tokyo/Kanto area and offers a broader product portfolio.
• Kiraboshi Bank: Kiraboshi Bank is a Tokyo-headquartered regional bank formed from the merger of multiple Tokyo-area banks, serving retail and SME customers across the Kanto region. It is a comparable regional incumbent to Jonan with a wider product range.
• Yokohama Bank (Concordia Financial Group): Yokohama Bank, part of Concordia Financial Group, is a major regional bank with a dominant presence in Kanagawa Prefecture. It competes with Jonan for SME and retail banking in Kanagawa and offers a broader range of corporate and investment banking services.
• Mitsubishi UFJ Bank: Mitsubishi UFJ Bank is Japan's largest commercial bank and a dominant retail and SME banking presence across Tokyo and Kanagawa. While serving a far broader customer base, it competes with Jonan for both retail deposits and SME lending in the same geographic footprint.

Direct peers

• Tokyo Shinkin Bank: Tokyo Shinkin Bank (Tokyo Shinkin) is one of the largest shinkin banks in Japan, headquartered in Chiyoda, Tokyo, with a similar community-focused deposit and SME lending franchise. It competes directly with Jonan in central Tokyo and shares the same cooperative structure and product mix.
• Shinjuku Shinkin Bank: Shinjuku Shinkin Bank is a Tokyo-based cooperative shinkin bank serving individuals and SMEs with a comparable community banking model. It overlaps directly with Jonan in the Tokyo metropolitan area and offers a similar deposit and loan product suite.
• Yokohama Shinkin Bank: Yokohama Shinkin Bank is a cooperative regional financial institution serving Yokohama and Kanagawa Prefecture with a similar deposit, lending, and SME focus as Jonan Shinkin Bank. The two operate overlapping geographies in the Kanagawa region and share the same shinkin cooperative model.

Regional players

• Saitama Resona Bank: Saitama Resona Bank is a regional bank serving Saitama Prefecture, part of the Resona Group. It targets retail and SME customers in its home prefecture and competes with Jonan for cross-prefecture SME and retail banking customers in the broader Kanto area.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments4 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about The Johnan Shinkin Bank