Warsaw has become a strong location for fintech engineering teams working on banking platforms, payment systems, investment applications, and financial automation tools. The companies below provide different approaches, from dedicated fintech development to broader custom software engineering with experience in financial products.
1. Itexus
Itexus builds custom fintech software for financial companies, banks, and technology businesses. It works on digital banking platforms, payment solutions, trading systems, wealth management software, lending platforms, and financial data apps. Its Warsaw office handles projects with complex integrations, legacy modernization, and products that must keep financial workflows secure.
Itexus builds new fintech products and improves existing systems. It also provides dedicated teams with engineers, QA specialists, designers, and other roles that long-term fintech projects need.
Key Facts
- Best for: Banking platforms, fintech applications, and financial software modernization
- Core services: Fintech software development, digital banking, trading software, payment solutions, lending platforms
- Specialization: Complex financial systems and regulated products
- Location: Warsaw, Poland
- Industries: Fintech, banking, investment, insurance
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. Belitsoft
Belitsoft builds custom fintech software for financial institutions, fintech product companies, and businesses that need their own financial apps. It builds digital banking platforms, payment processing systems, lending software, and investment apps. It also builds accounting tools, risk management systems, and financial data platforms. The company covers full-cycle development, modernization, integrations, and dedicated teams for long-term projects.
Belitsoft designs secure software architecture and follows compliance-focused development practices. It helps financial businesses with application modernization, cloud migration, API integrations, and maintenance of systems that run financial operations. From its Warsaw office, it provides engineering from Poland to both local and international clients.
Key Facts
- Best for: Custom fintech platforms and financial software modernization
- Core services: Fintech software development, banking applications, payment solutions, integrations, dedicated teams
- Specialization: Digital banking, lending platforms, investment software, financial automation
- Location: Warsaw, Poland
- Industries: Fintech, banking, insurance, financial services
Contact Information
- Website: belitsoft.com
- Phone: +48 222 922 436
- Email: moc.tfostileb@ofni
- Address: Warsaw, Poland, st. Elektoralna 13/103
- LinkedIn: www.linkedin.com/company/belitsoft-llc
- Facebook: www.facebook.com/Belitsoft
- Twitter: x.com/BelitsoftCom
3. SoftPro
SoftPro builds custom software, web applications, and cloud solutions for businesses. It works with .NET, Azure, React, and other modern frameworks to build platforms for business processes, integrations, and internal systems.
Fintech companies can hire SoftPro for secure web apps, customer portals, workflow systems, and cloud-based financial solutions. Its Warsaw team builds custom software, not ready-made products.
Key Facts
- Best for: Custom financial platforms and business applications
- Core services: Software development, web applications, cloud development, AI solutions
- Specialization: .NET-based systems and custom enterprise software
- Location: Warsaw, Poland
- Technologies: .NET, Azure, React, Node.js
Contact Information
- Website: soft-pro.pl
- Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401
4. 10Clouds
10Clouds builds digital products, including fintech apps, web platforms, and mobile solutions. Its financial technology work includes digital products, blockchain solutions, and business applications.
The company offers product design, software development, and technology consulting to companies launching new digital services.
Key Facts
- Best for: Digital financial products and startup projects
- Core services: Product development, UX/UI design, web and mobile development
- Specialization: Fintech products and digital platforms
- Location: Poland
- Industries: Fintech, SaaS, technology
Contact Information
- Website: 10clouds.com
- Phone: +48 573 173 773
- Email: moc.sduolc01@olleh
- Address: Chmielna 73, 00-801 Warsaw, Poland
- LinkedIn: www.linkedin.com/company/10clouds-com
- Facebook: www.facebook.com/10Clouds
- Twitter: x.com/10clouds
- Instagram: www.instagram.com/10clouds
5. Accenture
Accenture builds custom software for organizations that need business applications, automation systems, and help with digital transformation. It works with financial organizations on software engineering and process improvement.
Its experience covers enterprise applications, workflow systems, and platforms that must connect to existing infrastructure.
Key Facts
- Best for: Enterprise fintech transformation projects
- Core services: Custom software development, automation, consulting
- Specialization: Business applications and enterprise systems
- Location: Poland
- Industries: Finance, insurance, enterprise
Contact Information
- Website: www.accenture.com
- Phone: +482234970003222267211
- Address: Przyokopowa 26, Warszawa, Poland, 01-208
6. Neontri
Neontri builds fintech and banking software for financial institutions, payment providers, and companies creating digital financial products. It works on mobile banking apps, payment systems, data management platforms, API integrations, and modernization. Its fintech work includes transaction processing, compliance solutions, customer apps, and integration with existing financial infrastructure.
The company has delivered projects for the Polish banking sector, including mobile banking, PSD2 infrastructure, and systems for large-scale financial operations. Neontri also offers dedicated teams, custom development, application audits, and ongoing support for fintech products.
Key Facts
- Best for: Banking platforms, payment solutions, and financial software modernization
- Core services: Fintech software development, banking applications, mobile development, system integrations
- Specialization: Digital banking, payment infrastructure, financial data platforms
- Location: Warsaw, Poland
- Industries: Fintech, banking, financial services
Contact Information
- Website: neontri.com
- Phone: +48 730 007 717
- Email: moc.irtnoen@tcatnoc
- Address: Puławska 2, 02-566 Warszawa
- LinkedIn: www.linkedin.com/company/neontri
7. .NET Developers
.NET Developers builds custom software with Microsoft technologies, including .NET and related frameworks. It works on business applications, web platforms, integrations, and backend systems for industries with complex operations.
In fintech, its enterprise architecture experience helps it build financial platforms, internal systems, APIs, and apps that need a reliable backend.
Key Facts
- Best for: Financial applications based on Microsoft technologies
- Core services: .NET development, web applications, custom software, integrations
- Specialization: Enterprise software engineering
- Location: Poland
- Technologies: .NET, C#, Microsoft stack
Contact Information
- Website: net-devs.com
- Phone: +48 571 282 759
- Email: moc.sved-ten@tcatnoc
- Address: Obrzeżna 1D, 02-691 Warszawa, Poland
- LinkedIn: www.linkedin.com/company/net-devs
8. DashDevs
DashDevs builds fintech software for banks, startups, and financial companies. It focuses on digital banking, payment systems, lending platforms, investment products, and embedded finance. From its Warsaw office, it serves financial businesses that need product development, integrations, and scalable architecture. Its services include fintech app development, KYC and payment gateway integrations, blockchain solutions, and custom financial platforms.
DashDevs also offers reusable building blocks through its Fintech Core platform. It includes components for digital banking products, wallets, transaction processing, card issuing, open banking integrations, and compliance workflows.
Key Facts
- Best for: Digital banking platforms, payment solutions, and fintech startups
- Core services: Fintech software development, banking applications, payment integrations, KYC solutions
- Specialization: Digital finance products and regulated financial software
- Location: Warsaw, Poland
- Industries: Fintech, banking, financial services
Contact Information
- Website: dashdevs.com
- Email: moc.svedhsad@ofni
- Address: Krakowskie Przedmieście 13, 00-071 Warsaw, Poland
- LinkedIn: www.linkedin.com/company/dashdevs
- Facebook: www.facebook.com/dashdevs
- Twitter: x.com/dashdevs
9. Innowise
Innowise builds fintech software for companies creating financial platforms, banking apps, trading solutions, cryptocurrency products, and digital payment systems. It develops custom fintech software, modernizes existing platforms, integrates with financial systems, and builds secure apps for financial workflows.
Its fintech work covers digital banking, embedded finance, e-wallet apps, payment gateway integrations, blockchain solutions, and testing of financial products. Innowise stays with a project from first release through ongoing improvements and maintenance.
Key Facts
- Best for: Custom fintech platforms and financial software modernization
- Core services: Fintech development, integrations, mobile applications, software support
- Specialization: Banking software, payment solutions, digital finance products
- Location: Poland and international offices
- Industries: Finance, banking, insurance, technology
Contact Information
- Website: innowise.com
- Phone: +48 517 370 938
- Email: moc.esiwonni@tcatnoc
- Address: Rondo Daszyńskiego 2B, The Warsaw HUB B
- LinkedIn: www.linkedin.com/company/innowise-group
- Twitter: x.com/innowisegroup
10. SoftTeco
SoftTeco builds software for fintech and banking companies, including mobile banking apps, payment platforms, financial management tools, and enterprise financial systems. It works with businesses that need secure apps, integrations, and digital products for financial services.
Its fintech services include mobile and web development, system integration, cloud solutions, and product support. SoftTeco builds apps that connect user interfaces to complex backend financial processes.
Key Facts
- Best for: Banking applications and fintech product development
- Core services: Fintech software development, mobile apps, integrations, cloud solutions
- Specialization: Financial applications and digital banking
- Location: Poland and international offices
- Industries: Fintech, banking, financial services
Contact Information
- Website: softteco.com
- Email: moc.ocettfos@wasraw
- Address: 9A Belwederska st., Warsaw, 00-761
- LinkedIn: www.linkedin.com/company/softteco
- Facebook: www.facebook.com/softteco
- Twitter: x.com/softteco
- Instagram: www.instagram.com/softteco
11. Avenga
Avenga offers software engineering and technology consulting to businesses in complex industries. It works on enterprise applications, cloud solutions, data platforms, and digital transformation projects.
In financial services, it has built software for organizations with demanding technical environments.
Key Facts
- Best for: Enterprise financial technology projects
- Core services: Software engineering, cloud, consulting
- Specialization: Enterprise applications
- Location: Poland and international offices
- Industries: Finance, insurance, healthcare
Contact Information
- Website: www.avenga.com
- Phone: + 48 22 290 58 05
- Address: Przyokopowa st. 26, 01-208, 01-208 Warszawa
- LinkedIn: www.linkedin.com/company/avenga
- Twitter: x.com/avenga_global
- Instagram: www.instagram.com/avenga_global
12. Gilzor
Gilzor builds custom software products, mainly fintech apps, mobile solutions, and business platforms. Its financial products include digital wallets, cryptocurrency apps, trading interfaces, and transaction workflows. It also builds customer onboarding systems and integrations with external services.
Its fintech services include product development, modernization, UI/UX design, QA, and support. Gilzor fits companies whose financial apps need both a user-facing interface and complex backend logic.
Key Facts
- Best for: Fintech startups and companies developing digital financial products
- Core services: Fintech development, mobile applications, web platforms, integrations, QA
- Specialization: Digital wallets, trading applications, transaction systems
- Location: Warsaw, Poland
- Industries: Fintech, financial services, startups
Contact Information
- Website: www.gilzor.com
- Email: moc.rozlig@stcatnoc
- Address: Poland, Warsaw, Office 58, street Adama Mickiewicza 37, 01-625
- LinkedIn: www.linkedin.com/company/gilzor-softwaredevelopment
13. Inspeerity
Inspeerity builds custom software for fintech companies. Its projects cover payment processing, financial operations, compliance, risk management, customer relationship management, and data analytics. It serves businesses that need secure financial apps, modernized systems, and software that meets European regulatory requirements.
Its services include dedicated teams, staff augmentation, custom development, cloud solutions, and application modernization. Inspeerity has experience with PSD2 compliance, ISO 27001-based security practices, fraud detection, and data-driven financial platforms. It has a Warsaw office and several technology hubs in Poland and Europe.
Key Facts
- Best for: Custom fintech applications and financial software modernization
- Core services: Fintech software development, dedicated teams, staff augmentation, cloud development
- Specialization: Payment solutions, compliance-focused software, financial data platforms
- Location: Warsaw, Poland
- Industries: Fintech, banking, insurance, financial services
Contact Information
- Website: inspeerity.com
- Email: moc.ytireepsni@tcatnoc
- Address: Al. Jerozolimskie 93, 02-001 Warszawa
- LinkedIn: www.linkedin.com/company/inspeerity
- Facebook: www.facebook.com/inspeerity
- Instagram: www.instagram.com/inspeerity
14. Devox Software
Devox Software builds fintech solutions for companies creating digital financial products, banking platforms, payment systems, and financial automation tools. Its custom apps include payment gateway software, e-wallet platforms, lending solutions, accounting systems, and open banking integrations. The team focuses on secure architecture, compliance, and modernization of existing financial systems.
The company also handles cloud migration, API integrations, cybersecurity improvements, and software modernization. Devox Software has built neobanking platforms, trading systems, and blockchain-based fintech solutions. Its Warsaw office serves European businesses that need fintech engineering.
Key Facts
- Best for: Custom fintech platforms and financial software modernization
- Core services: Fintech software development, payment solutions, e-wallet development, lending software, banking systems
- Specialization: Digital banking, financial integrations, secure enterprise applications
- Location: Warsaw, Poland
- Industries: Fintech, banking, financial services
Contact Information
- Website: devoxsoftware.com
- Email: moc.erawtfosxoved@ofni
- Address: Jana Dantyszka 18, 02-054 Warsaw, Poland
- LinkedIn: www.linkedin.com/company/devox-software
- Facebook: www.facebook.com/devoxsoftware
Conclusion
Fintech software development companies in Warsaw cover different project needs, from building digital banking products and payment systems to creating enterprise applications and data platforms. Companies selecting a development partner should compare fintech experience, technical capabilities, understanding of financial workflows, and the ability to support long-term product development.