New York businesses can choose from focused fintech product teams, capital markets specialists, and global engineering consultancies with local offices. The companies below develop financial software for areas such as banking, payments, lending, trading, wealth management, and insurance. Each entry highlights the type of work and engagement for which the provider is most suited.
1. Itexus
Itexus develops financial software for banks, brokers, investment firms, insurers, and funded fintech companies in New York. Its work covers digital banking, payments, lending, wealth management, trading and brokerage platforms, digital assets, and AI-enabled financial products. The team also handles legacy modernization, complex third-party integrations, project rescue, security testing, and post-launch support.
For New York companies building regulated or integration-heavy products, Itexus offers full-cycle delivery as well as dedicated fintech engineers. Its published technology stack includes Java, .NET, TypeScript, Python, React, Angular, Flutter, React Native, Swift, Kotlin, AWS, Azure, Google Cloud, Docker, and Kubernetes.
Key Facts
- Best for: Regulated financial products and complex platform modernization
- Core services: Fintech software development, product discovery, UI/UX design, AI implementation, cloud engineering, QA, and maintenance
- Financial sectors: Banking, payments, lending, wealth management, trading, brokerage, insurance, and digital assets
- Geographic coverage: New York and the wider North American market through its US operation
- Notable strength: Financial integrations involving payment providers, KYC and AML vendors, brokers, market data feeds, and core banking systems
Contact Information
- Website: itexus.com
- E-mail: moc.suxeti@ofni
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- LinkedIn: www.linkedin.com/company/itexus
- Instagram: www.instagram.com/itexus.soft
- Address: 8, The Green, STE road, Dover, DE 19901
2. DataArt
DataArt combines software engineering with a dedicated finance practice covering banking, capital markets, asset and wealth management, payments, and insurance. Its teams work on product development, platform modernization, data and analytics, AI, cloud systems, DevOps, and quality engineering. This breadth is useful for financial institutions that need both industry knowledge and a sizeable delivery organization.
The company has a long-established New York office and local finance leadership. It is particularly well aligned with enterprise programs involving legacy systems, regulated workflows, large data estates, or coordination across several business units.
Key Facts
- Best for: Large financial institutions and multi-stage modernization programs
- Core services: Software engineering, product development, AI and ML, cloud, data analytics, DevOps, and quality engineering
- Financial sectors: Banking, capital markets, asset management, payments, and insurance
- Location: 475 Park Avenue South, Floor 15, New York, NY 10016
- Notable strength: Combining financial domain consulting with enterprise-scale engineering
Contact Information
- Website: www.dataart.com
- E-mail: moc.traatad@kroY-weN
- Facebook: www.facebook.com/DataArt
- Twitter: x.com/DataArt
- LinkedIn: www.linkedin.com/company/dataart
- Address: 475 Park Avenue South (between 31 & 32 streets), Floor 15, 10016, New York, USA
- Phone: +1 (212) 378-4108
3. Vention
Vention provides software engineering teams for fintech startups and established financial businesses. Its fintech practice supports product development across payments, digital banking, lending, investment technology, insurance, and blockchain-related products. Companies can use Vention for a complete delivery team or to add engineers to an existing product organization.
Headquartered in New York, Vention works through a distributed engineering model. This setup can suit local teams that want commercial and account access in the city while drawing on a broader international talent pool for web, mobile, cloud, data, and AI development.
Key Facts
- Best for: Companies that need to scale a fintech engineering team
- Core services: Custom software development, web and mobile engineering, cloud, data, AI, QA, and staff augmentation
- Financial sectors: Payments, banking, lending, investment technology, insurance, and blockchain
- Location: New York headquarters
- Notable strength: Flexible team extension and dedicated development models
Contact Information
- Website: ventionteams.com
- E-mail: moc.smaetnoitnev@olleh
- Twitter: x.com/ventionteams
- LinkedIn: www.linkedin.com/company/ventionteams
- Instagram: www.instagram.com/ventionteams
- Phone: +1 (718) 374-5043
- Address: 575 Lexington Avenue, 14th Floor, New York, NY 10022
4. DOOR3
DOOR3 is a New York-headquartered technology consultancy that designs and builds custom business software. Its financial services work includes reporting platforms, dashboards, data-rich applications, portals, and digital products for established organizations and fintech ventures. The company also offers discovery, project management, UX research, interface design, and project rescue.
The combination of design and engineering makes DOOR3 a practical candidate when workflow clarity and usability are as important as the underlying application. It is better suited to bespoke web, mobile, portal, and data-platform work than to an off-the-shelf banking implementation.
Key Facts
- Best for: Financial applications with complex workflows or demanding user experience requirements
- Core services: Technology consulting, custom software, mobile apps, portals, data platforms, AI, and UX design
- Financial focus: Financial services, insurance, and startup fintech products
- Location: New York City headquarters
- Notable strength: Product discovery, UX, and engineering within one team
Contact Information
- Website: www.door3.com
- E-mail: moc.3rood@stcejorp
- Twitter: x.com/door3
- LinkedIn: www.linkedin.com/company/door3
- Phone: +1 (212) 673-1818
- Address: 370 Lexington Avenue, Suite 1806, New York, NY 10017
5. EPAM Systems
EPAM brings product engineering, consulting, design, data, and cloud capabilities to financial services organizations. Its finance work covers banking, payments, capital markets, wealth and asset management, risk, regulatory systems, and customer-facing digital channels. The company is structured for large programs where software delivery must connect with broader operational or technology transformation.
Its New York office gives local enterprises access to a global engineering organization. EPAM is most appropriate for complex, long-running initiatives, particularly when the scope includes platform modernization, data engineering, cybersecurity, automation, or several integrated applications.
Key Facts
- Best for: Enterprise financial services transformation
- Core services: Product engineering, custom software, cloud, data, AI, cybersecurity, automation, and experience design
- Financial sectors: Banking, payments, capital markets, wealth management, and asset management
- Location: New York office
- Notable strength: Large-scale programs spanning consulting, engineering, and platform modernization
Contact Information
- Website: www.epam.com
- Facebook: www.facebook.com/EPAM.Global
- LinkedIn: www.linkedin.com/company/epam-systems
- Instagram: www.instagram.com/epamsystems
- Phone: +1 (267) 759-9000
- Address: 275 Seventh Avenue, 20th Floor, Suite 2002, New York, NY 10001
6. Thoughtworks
Thoughtworks is a technology consultancy known for custom software delivery and modernization. In financial services, its published work includes banking platforms, consumer lending, credit card systems, digital payments, and AI-assisted engineering. Teams can engage the company for technology strategy, product development, platform renewal, data work, and delivery improvement.
The New York office supports organizations that want local access to a consultancy with a global delivery footprint. Thoughtworks is a strong fit when the assignment involves changing both the software architecture and the way internal teams design, build, and release products.
Key Facts
- Best for: Banks modernizing products and software delivery practices
- Core services: Custom software, platform modernization, data, AI, cloud, product design, and technology strategy
- Financial focus: Banking, lending, cards, payments, and insurance
- Location: New York office
- Notable strength: Modern engineering practices applied to complex legacy environments
Contact Information
- Website: www.thoughtworks.com
- Email: moc.skrowthguoht@su-tcatnoc
- Facebook: www.facebook.com/Thoughtworks
- Twitter: x.com/thoughtworks
- LinkedIn: www.linkedin.com/company/thoughtworks
- Instagram: www.instagram.com/thoughtworks
- Address: 99 Madison Avenue, 12th Floor, New York, NY 10016
7. Globant
Globant develops digital products and provides technology transformation services for financial institutions. Its financial services capabilities cover banking, payments, insurance, and capital markets, with current offerings centered on software engineering, data, cloud, customer experience, automation, and AI. The company can support both customer-facing applications and internal platform programs.
With two listed New York locations, Globant has a direct local presence alongside its international engineering network. It is generally better matched to larger product portfolios and transformation programs than to a narrowly scoped prototype.
Key Facts
- Best for: Large financial organizations pursuing product and AI transformation
- Core services: Software engineering, cloud, data, AI, digital experience, and platform modernization
- Financial sectors: Banking, payments, insurance, and capital markets
- Location: New York offices
- Notable strength: Cross-functional delivery across design, engineering, and AI
Contact Information
- Website: www.globant.com
- Email: moc.tnabolg@ih
- Facebook: www.facebook.com/Globant
- LinkedIn: www.linkedin.com/company/globant
- Instagram: www.instagram.com/globant
- Phone: +1 (786) 841-1898
- Address: 251 Park Avenue South, 11th Floor, New York, NY 10010
8. Synechron
Synechron began with a strong focus on financial services and continues to work across capital markets, investment banking, wealth management, asset management, commercial and retail banking, payments, exchanges, and insurance. Its services include software engineering, AI, data analytics, cloud and DevOps, cybersecurity, digital experience, and technology consulting.
The company is headquartered in Times Square. Its sector depth makes it a logical option for regulated enterprises that need engineers and consultants who already understand transaction banking, trading workflows, institutional data, and compliance-sensitive systems.
Key Facts
- Best for: Banks, asset managers, exchanges, and capital markets firms
- Core services: Software engineering, AI, cloud and DevOps, cybersecurity, data analytics, and digital experience
- Financial sectors: Capital markets, banking, wealth and asset management, payments, exchanges, and insurance
- Location: New York headquarters
- Notable strength: Deep concentration in regulated financial services
Contact Information
- Website: www.synechron.com
- LinkedIn: www.linkedin.com/company/synechron
- Instagram: www.instagram.com/synechroninc
- Phone: +1 212 619 5200
- Address: 11 Times Square, Suite 3301, New York, NY 10036
9. TechMagic
TechMagic offers full-cycle product engineering for fintech companies, including discovery, design, web and mobile development, cloud engineering, testing, security, and ongoing support. Its teams work with technologies such as Node.js, Java, .NET, Python, React, and native or cross-platform mobile frameworks.
The company maintains a Lower Manhattan office, giving New York clients a local point of contact while development is supported by a wider European team. It is well suited to startups and growth-stage companies that need to move from product planning into production without assembling every role internally.
Key Facts
- Best for: Startups and growth-stage fintech product teams
- Core services: Product discovery, UX/UI, web and mobile development, cloud, QA, cybersecurity, and support
- Specialization: Full-cycle software product development
- Location: New York office
- Notable strength: One delivery partner from discovery through post-launch development
Contact Information
- Website: www.techmagic.co
- Email: oc.cigamhcet@olleh
- Facebook: www.facebook.com/TechMagic.co
- LinkedIn: www.linkedin.com/company/techmagic
- Instagram: www.instagram.com/techmagic
- Address: 27 Whitehall Street, 5th Floor, New York, NY 10004
10. Intellectsoft
Intellectsoft develops custom software and AI systems for enterprises and technology companies. Its capabilities include product engineering, mobile and web applications, data platforms, cloud systems, dedicated teams, product design, QA, and DevOps. Financial services and insurance are among the industries covered by its delivery organization.
Based in New York, the company can take responsibility for a full product or add specialists to an established team. It is a more suitable choice for enterprise applications and multi-system programs than for businesses seeking only a small design engagement.
Key Facts
- Best for: Enterprise fintech and financial services applications
- Core services: Custom software, AI, data platforms, web and mobile apps, cloud, QA, DevOps, and dedicated teams
- Industries: Financial services, insurance, healthcare, construction, and technology
- Location: New York headquarters
- Notable strength: Full product delivery combined with team extension
Contact Information
- Website: www.intellectsoft.net
- E-mail: ten.tfostcelletni@ofni
- Facebook: www.facebook.com/Intellectsoft
- Twitter: x.com/Intellectsoft
- LinkedIn: www.linkedin.com/company/intellectsoft
- Phone: +1 (650) 233-6196
- Address: 500 Fashion Avenue, Floor 8A, New York, NY 10018
11. Nagarro
Nagarro provides digital engineering for banks, lenders, fintech companies, insurers, and other financial institutions. Its banking and financial services work includes digital products, core and open banking integrations, payments, lending, credit decisioning, KYC and AML, regulatory processes, customer experience, data, and cloud modernization.
The company has a New York City office and a large international delivery network. It can be considered for enterprise assignments that connect product engineering with major banking platforms, complex integration layers, or modernization across several markets.
Key Facts
- Best for: Banking platforms and integration-heavy modernization
- Core services: Digital engineering, product development, AI, cloud, data, enterprise platforms, and managed services
- Financial sectors: Banking, lending, payments, wealth management, and insurance
- Location: New York office
- Notable strength: Banking ecosystem integrations covering payments, KYC, AML, credit, and regulatory systems
Contact Information
- Website: www.nagarro.com
- E-mail: moc.orragan@ofni
- Facebook: www.facebook.com/nagarroinc
- Twitter: x.com/nagarro
- LinkedIn: www.linkedin.com/company/nagarro
- Instagram: www.instagram.com/lifeatnagarro
- Phone: +1 (332) 291-9416
- Address: 195 Broadway, 25th Floor, New York, NY 10007
12. Endava
Endava combines software engineering with industry teams dedicated to payments, finance and banking, insurance, and private equity. Its work includes digital payment platforms, mobile banking, real-time transfers, customer-facing financial products, core modernization, data, cloud, and intelligent automation.
The New York office is part of Endava's North American close-to-client network. The company is a sensible option for organizations that need product consulting and engineering at scale, especially when delivery spans the United States and nearshore development locations.
Key Facts
- Best for: Payment, banking, and insurance platform development
- Core services: Product strategy, software engineering, cloud, data, AI, automation, and core modernization
- Financial sectors: Payments, finance and banking, insurance, and private equity
- Location: New York office
- Notable strength: Longstanding experience building and improving banking and payment platforms
Contact Information
- Website: www.endava.com
- Facebook: www.facebook.com/endava
- LinkedIn: www.linkedin.com/company/endava
- Instagram: www.instagram.com/endava
- Address: 757 Third Avenue, 19th Floor, Suite 1901, New York, NY 10017
13. Adaptive
Adaptive is a financial technology consultancy focused on capital and commodity markets. It designs and develops front-office trading systems, including low-latency architectures, market data services, workflow applications, exchange connectivity, and cloud-based trading environments. Its client base includes investment banks, investment managers, fintech companies, and market infrastructure providers.
The specialist focus is narrower than that of a general software consultancy, which is useful when a project depends on knowledge of electronic trading and real-time systems. Adaptive has a New York office and also operates from other financial and technology centers.
Key Facts
- Best for: Electronic trading and capital markets technology
- Core services: Trading platform engineering, architecture, cloud, market data, front-office workflows, and managed services
- Financial sectors: Capital markets, commodity markets, investment banking, and asset management
- Location: New York office
- Notable strength: Low-latency, real-time trading technology
Contact Information
- Website: weareadaptive.com
- Twitter: x.com/WeAreAdaptive
- LinkedIn: www.linkedin.com/company/adaptive-ltd
- Phone: +1 929 205 5080
- Address: 530 7th Avenue, Suite 501, New York 10018, USA
14. Mphasis
Mphasis provides application, cloud, data, and digital engineering services, with a substantial practice covering banking and capital markets. Its financial work spans corporate banking, payments, cards, wealth management, brokerage, trade finance, and platform modernization. The company is oriented toward established institutions and complex operational environments.
Its New York office supports access to a large global delivery organization. Mphasis is most suitable when a project involves enterprise systems, regulated processes, or the modernization of core cards, banking, brokerage, or wealth platforms.
Key Facts
- Best for: Enterprise banking, cards, brokerage, and wealth systems
- Core services: Application engineering, cloud, data, AI, automation, infrastructure, and modernization
- Financial sectors: Banking, capital markets, cards, payments, wealth management, and brokerage
- Location: New York office
- Notable strength: Technology transformation for large financial institutions
Contact Information
- Website: www.mphasis.com
- Facebook: www.facebook.com/MphasisOfficial
- Twitter: x.com/Mphasis
- LinkedIn: www.linkedin.com/company/mphasis
- Phone: +1 (212) 686-6655
- Address: 41 Madison Avenue, 35th Floor, New York, NY 10010
Conclusion
The right development partner depends on the product, regulatory exposure, existing systems, and delivery model. Itexus is well aligned with companies building regulated fintech platforms or modernizing complex financial software, while several New York-based alternatives offer strong capabilities in enterprise banking, payments, capital markets, AI, product design, and team extension. Before selecting a provider, compare relevant project evidence, integration experience, security processes, team structure, and the scope of post-launch support.