Businesses looking for banking software development companies in Japan usually need more than standard application development. The right provider should understand financial workflows, security requirements, integrations, compliance considerations, and the technical needs of modern banking platforms. This list includes companies that work with financial software, fintech products, enterprise systems, and digital transformation projects relevant to banking organizations.
1. Itexus
Itexus builds custom fintech and banking software: digital banking platforms, payment solutions, trading systems, and wealth management tools. It also automates financial processes. The team works in regulated environments, where security, integrations, and reliable data processing matter. For banks, it develops mobile banking apps, modernizes core banking, and builds KYC and AML workflows and digital wallets.
Beyond development, Itexus offers fintech consulting, software architecture, quality assurance, DevOps, and ongoing support for financial systems. Past projects include digital customer onboarding platforms, automated trading solutions, and financial data applications.
Key Facts
- Best for: Financial companies building custom banking and fintech platforms
- Core services: Banking software development, fintech applications, digital banking, payment systems, integrations
- Specialization: Regulated financial software and enterprise fintech products
- Industries: Banking, fintech, investment, insurance
- Location: United States and Europe
- Notable strength: Experience with complex financial workflows and integrations
Contact Information
- Website: itexus.com
- Email: moc.suxeti@ofni
- Address: Twarda 14, 00-824 Warszawa, Poland
- LinkedIn: www.linkedin.com/company/itexus
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- Instagram: www.instagram.com/itexus.soft
2. BIPROGY
BIPROGY provides IT services and software for financial institutions and enterprises. It builds banking systems, develops applications, and runs cloud and digital transformation projects. Its clients need platforms for daily operations and for long-term modernization.
In banking, BIPROGY develops and maintains core systems, improves operational processes, and connects separate enterprise applications. Choose it if you want a partner that knows large-scale business systems.
Key Facts
- Best for: Banks and enterprises modernizing existing technology environments
- Core services: Banking systems, software development, cloud solutions, system integration
- Specialization: Enterprise IT modernization and financial systems
- Industries: Banking, finance, public sector, enterprise
- Location: Tokyo, Japan
- Notable strength: Experience supporting large-scale information systems
Contact Information
- Website: www.biprogy.com
- Phone: +81-3-5546-4111
- Address: 1-1-1 Toyosu, Koto-ku, Tokyo 135-8560, Japan
3. TISI
TISI provides financial IT services and software to banks, payment providers, and other financial organizations. Its work covers payment infrastructure, financial systems, and digital transformation projects.
The company builds payment platforms, credit card processing systems, and debit payment technology, plus software for running a financial institution. TISI fits organizations that want a partner with experience in large-scale payment and financial infrastructure.
Key Facts
- Best for: Payment platforms and financial infrastructure projects
- Core services: Financial systems, payment technology, IT services, digital transformation
- Financial areas: Banking, cards, payments
- Location: Tokyo, Japan
- Specialization: Payment and mission-critical financial systems
Contact Information
- Website: www.tisi.jp
- Phone: +81-3-5337-7070
- Email: pj.isit.liam@ri-isit
- Address: Sumitomo Fudosan Shinjuku Grand Tower,8-17-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
- Facebook: www.facebook.com/tisintecgroup
- Twitter: x.com/tisintecgroup
4. NEC
NEC builds digital finance solutions that combine software, AI, identity technology, payment systems, and banking platforms. Its applications cover digital banking, automated loan processes, transaction security, and fraud detection.
NEC offers biometric authentication and data-driven financial services alongside digital banking tools. It suits banking projects that need more than software, such as artificial intelligence or secure identity management.
Key Facts
- Best for: Digital banking projects combining software and advanced technologies
- Core services: Digital finance solutions, AI applications, payment systems, banking technology
- Financial areas: Banking, payments, lending, wealth technology
- Location: Tokyo, Japan
- Specialization: AI-powered financial solutions and digital identity technologies
Contact Information
- Website: group.nec
- Phone: +81-3-3454-1111
- Address: 7-1, Shiba 5-chome Minato-ku, Tokyo 108-8001 Japan
- LinkedIn: www.linkedin.com/company/nec
- Facebook: www.facebook.com/nec.global
- Twitter: x.com/NEC_Australia
- Instagram: www.instagram.com/necaustralia
5. Future Architect
Future Architect offers IT consulting, system architecture, software development, and operational support to financial organizations. Dedicated fintech teams work on banking systems and next-generation financial platforms.
Its projects include banking transformation, custom financial systems, and tools that improve banking operations. Because it handles both consulting and engineering, a bank can use it for planning, development, and implementation.
Key Facts
- Best for: Banking transformation and custom financial platforms
- Core services: IT consulting, architecture, system development, operations
- Financial areas: Banking, fintech, financial services
- Location: Tokyo, Japan
- Specialization: Enterprise banking systems and digital transformation
Contact Information
- Website: www.future.co.jp
- Phone: 03-5740-5721
- Address: Art Village Osaki Central Tower, 1-2-2 Osaki, Shinagawa-ku, Tokyo 141-0032, Japan
6. DTS Corporation
DTS develops and maintains financial systems for banks, trust banks, securities companies, and credit card providers. It has worked on account systems, market platforms, external connectivity, and large-scale system modernization.
Its projects include banking upgrades, securities platforms, card management, credit screening, billing systems, and payment infrastructure. DTS fits organizations that need long-term development and maintenance of complex financial applications.
Key Facts
- Best for: Banking, securities, and payment system development
- Core services: System integration, software development, maintenance, infrastructure
- Financial areas: Banking, securities, credit cards, trusts
- Location: Tokyo, Japan
- Project focus: Core systems and financial application modernization
Contact Information
- Website: www.dts.co.jp
- Phone: +81-3-3948-5488
- Address: 2-23-1 Hatchobori, Chuo-ku, Tokyo 104-0032, Japan
7. ITOCHU Techno-Solutions (CTC)
ITOCHU Techno-Solutions serves banks, securities companies, insurers, and credit businesses. Its Financial Services Group covers planning, software development, and infrastructure construction. It also handles cloud implementation, maintenance, and outsourcing.
CTC also works with fintech and RegTech solutions for credit management, lending support, and capital markets operations. It fits financial organizations that need custom development and wider technology integration from one provider.
Key Facts
- Best for: Financial organizations requiring full IT lifecycle support
- Core services: Software development, cloud, infrastructure, consulting, maintenance
- Financial areas: Banking, securities, insurance, credit, capital markets
- Location: Tokyo, Japan
- Specialization: Financial system integration and modernization
Contact Information
- Website: www.ctc-g.co.jp
- Phone: +81-3-6403-6000
- Address: Kamiyacho Trust Tower, 4-1-1 Toranomon, Minato-ku, Tokyo 105-6950, Japan
- Twitter: x.com/ctc_press
8. NS Solutions (NSSOL)
NS Solutions develops financial applications for banking, securities, risk management, and capital markets organizations. Its systems deal with financial engineering, regulatory requirements, trading processes, and enterprise financial operations.
NSSOL offers consulting, application development, implementation, cloud solutions, and maintenance. It is a good choice for technically complex systems, such as risk platforms, lending solutions, and derivatives systems.
Key Facts
- Best for: Capital markets, risk management, and enterprise financial systems
- Core services: Consulting, system development, implementation, maintenance
- Financial areas: Banking, securities, derivatives, lending, risk management
- Location: Tokyo, Japan
- Specialization: Financial engineering and complex enterprise applications
Contact Information
- Website: www.nssol.nipponsteel.com
- Phone: +81-3-6899-6000
- Address: Toranomon Hills Business Tower, 1-17-1 Toranomon, Minato-ku, Tokyo 105-6417, Japan
- Facebook: www.facebook.com/nssol.pr
- Twitter: x.com/nssol_jp
9. CAC Corporation
CAC Corporation provides software development, system integration, operations, and managed services to financial organizations. Its clients include banks, securities firms, insurers, and pension organizations. CAC covers planning, design, development, implementation, and maintenance.
In finance, it has built banking systems and securities platforms for clearing, settlement, and other operations. CAC suits organizations that want one long-term partner across several stages of the software lifecycle.
Key Facts
- Best for: Financial institutions needing full software lifecycle support
- Core services: System development, integration, operations, managed services
- Financial areas: Banking, securities, insurance, pensions
- Location: Tokyo, Japan
- Project focus: Planning, development, implementation, and maintenance
Contact Information
- Website: www.cac.co.jp
- Phone: +81-3-6667-8000
- Address: 24-1 Nihonbashi-Hakozaki-cho, Chuo-ku, Tokyo 103-0015, Japan
10. NSD
NSD develops software for banks, trust banks, insurance companies, securities firms, and credit card businesses. It builds core financial platforms and supporting applications: accounting and market systems, card management, credit screening, and payments.
Its services cover IT consulting, system planning, design, development, and infrastructure construction. NSD fits financial organizations that need custom software from a team experienced with large-scale financial systems.
Key Facts
- Best for: Banking, insurance, securities, and card software projects
- Core services: IT consulting, software development, system design, infrastructure
- Financial areas: Banking, trusts, insurance, securities, credit cards
- Location: Tokyo, Japan
- Project focus: Core financial systems and payment platforms
Contact Information
- Website: www.nsd.co.jp
- Phone: +81-3-3257-1130
- Email: pj.oc.dsn@retsam-bew
- Address: WATERRAS TOWER, 2-101 Kanda-awajicho, Chiyoda-ku, Tokyo 101-0063, Japan
11. NTT DATA
NTT DATA provides enterprise technology services and software development to banks, insurance companies, and payment organizations. It works on large-scale banking systems, financial infrastructure, cloud modernization, and digital banking.
Its banking work covers core banking platforms, payment processing, customer-facing apps, and data-driven financial solutions. With its presence in Japan, NTT DATA brings local market knowledge to domestic financial organizations.
Key Facts
- Best for: Large financial institutions requiring enterprise-scale systems
- Core services: Banking platforms, system integration, cloud services, financial IT solutions
- Specialization: Enterprise financial technology
- Industries: Banking, insurance, financial services
- Location: Tokyo, Japan
- Notable strength: Experience with complex financial infrastructure
Contact Information
- Website: nttdata.com
- Phone: +81-3-5546-8202
- Address: Toyosu Center Building, 3-3-3 Toyosu, Koto-ku, Tokyo 135-6033, Japan
- LinkedIn: www.linkedin.com/company/nttdata
- Facebook: www.facebook.com/NTTDATAJapan
- Twitter: x.com/NTTDATA_PR
- Instagram: www.instagram.com/nttdataplus
12. Hitachi Solutions
Hitachi Solutions provides software development and consulting to financial organizations. It implements banking systems, builds business applications, and runs digital transformation projects. Its clients need custom systems that connect with their existing processes.
For financial businesses, it handles application development, cloud solutions, data management, and integration.
Key Facts
- Best for: Organizations combining banking software with enterprise systems
- Core services: Custom software, consulting, cloud, system integration
- Specialization: Business application development
- Industries: Banking, finance, manufacturing, enterprise
- Location: Tokyo, Japan
- Notable strength: Enterprise software expertise
Contact Information
- Website: www.hitachi.com
- Phone: +81-3-3258-1111
- Address: 6-6 Marunouchi 1-chome, Chiyoda-ku, Tokyo 100-8280, Japan
- LinkedIn: www.linkedin.com/company/hitachi
- Facebook: www.facebook.com/hitachi.global
- Twitter: x.com/Hitachi
- Instagram: www.instagram.com/hitachi
13. SCSK Corporation
SCSK provides IT services and software development to financial institutions. It builds banking applications, integrates systems, runs infrastructure, and automates business processes.
The company helps financial organizations write software, move to the cloud, run security projects, and improve operations.
Key Facts
- Best for: Financial organizations needing development and IT operations support
- Core services: Software development, integration, cloud, IT consulting
- Specialization: Enterprise IT services
- Industries: Banking, finance, insurance
- Location: Tokyo, Japan
- Notable strength: Broad enterprise technology capabilities
Contact Information
- Website: www.scsk.jp
- Phone: +81-3-5166-2500
- Address: 3-chōme-2-20 Toyosu, Koto City, Tokyo 135-0061
14. NRI (Nomura Research Institute)
Nomura Research Institute provides consulting and technology services to banks, investment companies, and other firms in regulated financial markets. It pairs business consulting with software development, system integration, and implementation.
NRI works on financial platforms, data management systems, digital transformation, and operational improvements. Its financial sector background helps when a project needs both technology skills and knowledge of banking processes.
Key Facts
- Best for: Financial institutions needing consulting combined with software development
- Core services: Financial system development, IT consulting, system integration, digital transformation
- Specialization: Banking and financial technology solutions
- Industries: Banking, investment, financial services
- Location: Tokyo, Japan
- Notable strength: Combination of financial industry knowledge and technology services
Contact Information
- Website: www.nri.com
- Phone: 03-5877-7100
- Email: pj.oc.irn@retsambew
- Address: Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004
Conclusion
Choosing a banking software development company in Japan depends on the type of financial product, required integrations, security expectations, and the level of customization needed. Some providers focus on large-scale banking infrastructure and enterprise systems, while others work more closely with fintech applications, digital platforms, payments, and financial automation. A clear understanding of project goals and technical requirements can help organizations select a partner that fits their operational needs and long-term plans.