New York offers fintech businesses access to development partners ranging from focused financial software specialists to large engineering firms with local offices. This list compares their relevant capabilities, project focus, financial industry experience, and geographic presence.
1. Itexus
Itexus builds custom software for banks, fintech startups, investment firms, lenders, and financial service providers. It works on digital banking, payments, wealth management, algorithmic trading, personal finance, insurance, and regulatory technology. The team can take a product from discovery and interface design through engineering, testing, deployment, and maintenance. Itexus fits projects with complex financial workflows, sensitive customer data, external financial APIs, or an existing platform to modernize. It also runs project rescues and technical audits for unfinished or unstable fintech products.
Key Facts
- Best for: Custom financial products and modernization projects
- Core services: Fintech software development, product discovery, UI/UX design, quality assurance, support
- Specialization: Digital banking, lending, payments, trading, wealth management
- Project types: Web platforms, mobile applications, internal systems, API integrations
- Location: United States
- Notable strength: Broad coverage of regulated financial software use cases
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, United States
2. DOOR3
DOOR3 works from New York on custom software, enterprise applications, data platforms, and user experience design. Its financial services practice covers banking, payments, lending, wealth management, insurance, and risk systems. Established organizations hire it to replace aging internal software or connect separate financial systems. DOOR3 pairs application engineering with business analysis, user research, interface design, and data visualization. That mix helps when the operations behind a product are as complex as the customer-facing side.
Key Facts
- Best for: Enterprise financial platforms and legacy system modernization
- Core services: Custom software, application modernization, UX design, data solutions, system integration
- Industries: Financial services, insurance, healthcare, retail
- Location: New York, NY
- Notable strength: Combining technical delivery with business and UX analysis
Contact Information
- Website: www.door3.com
- E-mail: moc.3rood@stcejorp
- Twitter: x.com/door3
- LinkedIn: www.linkedin.com/company/door3
- Address: 370 Lexington Ave. Suite 1806 New York, NY, 10017 United States
- Phone: +1 (212) 673-1818
3. DataArt
DataArt has a New York presence and a long-running financial services practice. Its teams build and modernize software for capital markets, banking, payments, insurance, and wealth management firms. It also offers cloud transformation, data engineering, artificial intelligence, quality engineering, cybersecurity, and managed support. Because it knows large financial environments, DataArt suits projects with many systems, large data volumes, or hard integrations. The company can also supply engineering teams for ongoing product development, not just a single implementation.
Key Facts
- Best for: Complex financial platforms and long-term engineering programs
- Core services: Custom software engineering, cloud transformation, data and analytics, AI, quality engineering
- Specialization: Finance and capital markets technology
- Project types: Platform modernization, integrations, data systems, digital products
- Location: New York, NY
- Notable strength: Delivery across software, cloud, data, and managed support
Contact Information
- Website: www.dataart.com
- E-mail: moc.traatad@selas
- Facebook: www.facebook.com/DataArt.Dev
- Twitter: x.com/DataArt
- LinkedIn: www.linkedin.com/company/dataart
- Address: 475 Park Avenue South (between 31 & 32 streets), Floor 15, New York, NY 10016
- Phone: +1 (212) 378-4108
4. Vention
Vention provides software engineering teams for startups and larger organizations, and fintech is one of its core industries. Its New York operation works on trading technology, payment products, financial applications, cloud systems, and data-heavy platforms. Clients can hire individual specialists or a larger team. That team can cover backend and frontend engineering, mobile development, cloud, DevOps, QA, and data engineering. This flexible model suits fintech businesses that already have product leaders but need more engineers for a set roadmap.
Key Facts
- Best for: Scaling fintech product and engineering teams
- Core services: Custom software, web and mobile development, cloud, DevOps, QA, data engineering
- Specialization: Flexible engineering teams
- Industries: Fintech, healthcare, ecommerce, proptech, education
- Location: New York, NY
- Notable strength: Broad technical coverage for extended development engagements
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
- Address: 575 Lexington Avenue, 14th Floor, New York, NY 10022
- Phone: +1 (800) 338-4090
5. Perpetual
Perpetual is a New York digital product agency that does product strategy, user experience design, and software development. Its past work includes finance, business information, and data products, where interfaces must show complicated information clearly. The agency launches new products and redesigns existing web and mobile platforms. Its mix of design and engineering suits customer-facing fintech apps, analytics dashboards, and financial tools. These products need to simplify dense workflows without hiding important detail.
Key Facts
- Best for: Fintech products with demanding UX requirements
- Core services: Product strategy, UX research, UI design, web development, mobile development
- Specialization: Digital product design and engineering
- Project types: Applications, dashboards, customer portals, product redesigns
- Location: New York, NY
- Notable strength: Close integration of product design and technical delivery
Contact Information
- Website: www.perpetualny.com
- E-mail: moc.ynlauteprep@ofni
- Facebook: www.facebook.com/perpetualny
- Twitter: x.com/perpetualny
- LinkedIn: www.linkedin.com/company/perpetual
- Instagram: www.instagram.com/perpetual.ny
- Address: 135 W 26th St, 9A, New York, NY 10001
- Phone: +1 (212) 904-1497
6. Fingent
Fingent builds custom applications and digital platforms for financial services and other regulated industries. It offers web and mobile development, enterprise software, cloud applications, data analytics, artificial intelligence, and system integration. Fingent has a New York office and works on everything from early product planning to updating established business systems. Its enterprise background helps fintech buyers when a new app must connect to accounting software, customer management tools, payment services, or internal reporting.
Key Facts
- Best for: Financial applications tied to wider enterprise systems
- Core services: Custom software, enterprise applications, cloud, AI, data analytics
- Project types: Web applications, mobile products, integrations, modernization
- Location: New York, NY
- Notable strength: Experience connecting customer products with business operations
Contact Information
- Website: www.fingent.com
- E-mail: moc.tnegnif@ofni
- Facebook: www.facebook.com/Fingent
- Twitter: x.com/fingent
- LinkedIn: www.linkedin.com/company/fingent-technologies
- Instagram: www.instagram.com/fingentcorporation
- Address: 235 Mamaroneck Avenue #301, White Plains, NY 10605
- Phone: +1 (914) 615-9170
7. Intellectsoft
Intellectsoft delivers custom software and digital transformation projects for businesses with complex technical needs. In fintech, it builds mobile banking, payment apps, digital wallets, blockchain systems, and enterprise platforms. The company has a New York presence and covers product strategy, design, engineering, cloud infrastructure, and ongoing support. It fits organizations that want one provider for a fintech app and the backend services that run it. Its enterprise focus also helps with modernization that takes more than a new interface.
Key Facts
- Best for: Enterprise fintech applications and digital transformation
- Core services: Custom software, mobile development, cloud, UI/UX design, dedicated teams
- Specialization: Enterprise and mobile products
- Project types: Banking apps, wallets, payment tools, internal platforms
- Location: New York, NY
- Notable strength: Full-cycle delivery for multi-component products
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
- Address: 500 Fashion Ave, Fl 8A, New York City, NY 10018, USA
- Phone: +1 (650) 233-6196
8. DevsData
DevsData offers custom software development and technical recruitment. It builds backend platforms, data-heavy applications, cloud systems, and AI-enabled products for fintech businesses. Its recruitment practice helps clients hire their own engineers. With a New York presence, it serves local companies that want a managed project or help hiring specialized developers. The model works best for technically complex products that need senior backend, data, or machine learning experts more than a large general team.
Key Facts
- Best for: Fintech engineering and specialist technical recruitment
- Core services: Custom software, backend development, AI, data engineering, recruitment
- Specialization: Senior technical talent and data-intensive products
- Project types: Financial platforms, internal systems, analytics tools, AI applications
- Location: New York, NY
- Notable strength: Development and recruitment available through one provider
Contact Information
- Website: devsdata.com
- E-mail: moc.atadsved@lareneg
- Facebook: www.facebook.com/DevsData
- Twitter: x.com/DevsData
- LinkedIn: www.linkedin.com/company/devsdata
- Address: 1820 Avenue M #481 Brooklyn, NY 11230, USA
- Phone: (917) 300-1752
9. Appinventiv
Appinventiv builds mobile apps, web platforms, and enterprise software for financial institutions and fintech companies. Its fintech work spans banking, lending, payments, insurance, wealth management, digital wallets, and blockchain-based products. Appinventiv has a New York office. It covers consulting, product design, engineering, testing, cloud implementation, and maintenance after launch. Its large delivery team suits businesses planning several apps, heavy backend infrastructure, or a steady stream of new features.
Key Facts
- Best for: Mobile-first fintech products and larger delivery programs
- Core services: Mobile development, custom software, product design, cloud, data and AI
- Specialization: Consumer and enterprise digital products
- Project types: Banking apps, wallets, payment products, lending platforms
- Location: New York, NY
- Notable strength: Capacity to support broad, multi-stage development programs
Contact Information
- Website: appinventiv.com
- E-mail: moc.vitnevnippa@ofni
- Twitter: x.com/appinventiv
- LinkedIn: www.linkedin.com/company/appinventiv
- Instagram: www.instagram.com/appinventiv
- Address: 79 Madison Ave, Manhattan, NY 10001, USA
- Phone: +1-404-563-1172
10. BairesDev
BairesDev provides nearshore software development teams to businesses in the United States, including financial services clients. It offers custom software, mobile and web engineering, cloud development, data science, quality assurance, and staff augmentation. The company has a New York location and teams spread across the Americas. Financial businesses get developers in their time zone without hiring only from the New York talent market. BairesDev can add a few developers to an existing team or staff a whole product initiative.
Key Facts
- Best for: Nearshore fintech development and team augmentation
- Core services: Custom software, staff augmentation, mobile, web, cloud, QA
- Delivery model: Distributed teams across the Americas
- Project types: Product engineering, platform modernization, integrations
- Location: New York, NY
- Notable strength: Time-zone alignment for United States clients
Contact Information
- Website: www.bairesdev.com
- Facebook: www.facebook.com/bairesdev
- Twitter: x.com/bairesdev
- LinkedIn: www.linkedin.com/company/bairesdev
- Instagram: www.instagram.com/bairesdev
- Address: 300 Cadman Plaza West, One Pierrepont Plaza, 12th Floor, Brooklyn, New York 11201 USA
- Phone: +1 (408) 478-2739
11. PixelPlex
PixelPlex builds software with blockchain, artificial intelligence, data platforms, and financial technology. Its fintech work includes payment systems, digital assets, decentralized finance products, tokenization platforms, wallets, and blockchain infrastructure. PixelPlex has a New York presence and fits projects where standard financial features meet distributed ledger technology. That focus is narrower than general banking software. It helps businesses working on asset tokenization, crypto payment infrastructure, or blockchain-enabled financial services.
Key Facts
- Best for: Blockchain-based financial products
- Core services: Blockchain development, custom software, AI, data engineering, consulting
- Specialization: Digital assets, tokenization, wallets, decentralized applications
- Project types: Payment systems, blockchain platforms, smart contracts
- Location: New York, NY
- Notable strength: Technical depth in blockchain-related financial use cases
Contact Information
- Website: pixelplex.io
- E-mail: oi.xelplexip@ofni
- Facebook: www.facebook.com/pixelplex.inc
- Twitter: x.com/pixelplexinc
- LinkedIn: www.linkedin.com/company/pixelplex-inc
- Address: West 28th St. Suite 31, New York, NY
- Phone: +1 646 490 0772
12. SoluLab
SoluLab builds custom software, mobile apps, artificial intelligence, blockchain, and Web3 products. In fintech, it builds payment apps, digital wallets, lending software, trading platforms, and decentralized finance. It also builds financial products with automated data processing. SoluLab serves New York clients through its United States operation. It offers full product delivery or dedicated developers. It suits projects that go beyond standard web or mobile work, especially when blockchain or AI is central to the product.
Key Facts
- Best for: Fintech products combining mobile, AI, and blockchain
- Core services: Custom software, mobile development, AI, blockchain, Web3
- Specialization: Emerging technology product development
- Project types: Wallets, payment apps, lending platforms, trading products
- Location: United States, serving New York
- Notable strength: Coverage of both traditional applications and blockchain systems
Contact Information
- Website: www.solulab.com
- E-mail: moc.balulos@selas
- Facebook: www.facebook.com/solulab.inc
- Twitter: x.com/solulab
- LinkedIn: www.linkedin.com/company/solulab
- Instagram: www.instagram.com/solulabofficial
- Address: 575 Broadway (at Prince) 6th Floor, New York, NY 10012
- Phone: +1 424 404 9371
13. EPAM Systems
EPAM offers product engineering, consulting, design, data, and cloud services to financial services organizations. Its finance work covers banking, payments, capital markets, wealth and asset management, risk, regulatory systems, and digital customer channels. The company is built for large programs where software ties into wider operational or technology change.
Through its New York office, local enterprises reach EPAM's global engineering organization. EPAM fits complex, long-running projects, especially those involving platform modernization, data engineering, cybersecurity, automation, or several connected 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
14. Thoughtworks
Thoughtworks is a technology consultancy known for custom software and modernization. In financial services, its published work includes banking platforms, consumer lending, credit card systems, digital payments, and AI-assisted engineering. Clients hire it for technology strategy, product development, platform renewal, data work, and better delivery practices.
Its New York office gives local organizations access to a consultancy that delivers worldwide. Choose Thoughtworks when you need to change both your software architecture and how your 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
15. Globant
Globant builds digital products and runs technology transformation for financial institutions. It serves banking, payments, insurance, and capital markets. Its current services focus on software engineering, data, cloud, customer experience, automation, and AI. Globant works on both customer-facing apps and internal platforms.
With two listed New York locations, Globant combines a local presence with its international engineering network. It fits large product lines and transformation programs better than a small 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
16. Synechron
Synechron started with a strong focus on financial services and still works mainly in that sector. It covers capital markets, investment banking, wealth and 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. Regulated enterprises can get engineers and consultants who already know 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
17. TechMagic
TechMagic builds fintech products through the full cycle: discovery, design, web and mobile development, cloud engineering, testing, security, and ongoing support. Its teams use Node.js, Java, .NET, Python, React, and native or cross-platform mobile frameworks.
TechMagic has a Lower Manhattan office, so New York clients get a local contact while a wider European team does the development. It suits startups and growth-stage companies that want to go from product planning to production without hiring every role in-house.
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
18. Nagarro
Nagarro provides digital engineering for banks, lenders, fintech companies, insurers, and other financial institutions. It builds digital products, core and open banking integrations, payments, lending, and credit decisioning. It also works on KYC and AML, regulatory processes, customer experience, data, and cloud modernization.
Nagarro has a New York City office and a large international delivery network. Consider it for enterprise projects that link product engineering to 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
19. Endava
Endava pairs software engineering with industry teams for payments, finance and banking, insurance, and private equity. It builds digital payment platforms, mobile banking, real-time transfers, and customer-facing financial products. It also handles core modernization, data, cloud, and intelligent automation.
Its New York office is part of Endava's North American close-to-client network. Endava suits organizations that need product consulting and engineering at scale, especially with teams in both the United States and nearshore 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
20. Adaptive
Adaptive is a financial technology consultancy for capital and commodity markets. It designs and builds front-office trading systems: low-latency architectures, market data services, workflow applications, exchange connectivity, and cloud-based trading environments. Clients include investment banks, investment managers, fintech companies, and market infrastructure providers.
Adaptive is more specialized than a general software consultancy. That helps when a project depends on knowledge of electronic trading and real-time systems. Adaptive has a New York office and also works 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
21. Mphasis
Mphasis provides application, cloud, data, and digital engineering services, with a large banking and capital markets practice. Its financial work covers corporate banking, payments, cards, wealth management, brokerage, trade finance, and platform modernization. It mainly serves established institutions with complex operations.
Its New York office connects clients to a large global delivery organization. Mphasis fits projects with 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
New York’s fintech development market covers nearly every kind of financial product, from mobile banking and payment infrastructure to lending platforms, trading systems, and wealth management tools. The real difference between providers lies in how well they understand regulated workflows, legacy integrations, data security, and the practical demands of bringing financial software into production. A sensible choice starts with the product itself. Some teams are better equipped for an early-stage app, while others are built for complex modernization programs or long-term engineering support. Reviewing relevant fintech experience, technical depth, communication practices, and post-launch capabilities should make the strongest candidates much easier to identify.