New York is home to some of the world’s most innovative FinTech companies, contributing significantly to the global financial technology sector. In 2024, the U.S. FinTech market was valued at over $5 trillion, with New York leading as a top hub for investment and innovation.

According to CB Insights, over 50% of the top-funded U.S. FinTech startups are headquartered in New York, showcasing the city’s dominance. 

With a growing demand for blockchain, AI-driven financial solutions, and digital banking apps, businesses need expert FinTech app development companies to create secure, scalable, and high-performing financial applications.

Whether you’re looking to develop a FinTech solution—a neobank, investment platform, blockchain-based app, or an AI-driven financial assistant—partnering with the right development company can be a game-changer. 

In this guide, we highlight the top 10 FinTech app development companies in New York that are shaping the future of financial technology.

Best Fintech App Development Companies in New York

PEAK6

General Company Information:

  • Company Name: PEAK6​
  • Founder(s) Name: Matthew Hulsizer and Jenny Just​
  • Company Website: https://www.peak6.com​
  • Price Model: Both hourly and project-based
  • Charges Per Project: Not publicly disclosed​
  • Number of Employees: Approximately 1,000​
  • Ratings & Reviews: 3.0 out of 5 based on 10 reviews from Glassdoor

Clients & Industries:

  • Top Customers: CoreWeave, Athena, MoneyLion
  • Industries Served: Financial services, technology, and sports​

Technologies & Services:

  • Technologies They Work On: Proprietary trading algorithms, financial technology platforms​
  • Services Offered: Trading, investment, and technology solutions​

Employee & Client Feedback:

  • Employees Verbatim: “Staff are underpaid and needed a one-time cost adjustment to bring them to market value.” 
  • Clients Verbatim: Not publicly available​

Awards & Certifications:

  • Recognitions: Not publicly disclosed

TechnBrains

General Company Information:

  • Company Name: TechnBrains​
  • Founder(s) Name: Tom Fuller
  • Company Website: https://www.technbrains.com​
  • Price Model: Both hourly and project-based​
  • Charges Per Project: Approximately $25 to $49 per hour​
  • Number of Employees: 50 to 249​
  • Ratings & Reviews: 4.9 out of 5 based on 30 reviews​ from Clutch

Clients & Industries:

  • Top Customers: Kifaru International, AMT, Khoja Firm
  • Industries Served: Healthcare, finance, e-commerce, and education​

Technologies & Services:

  • Technologies They Work On: JavaScript, Python, Java, React, Angular, Node.js​
  • Services Offered: Mobile app development, web development, software development, UI/UX design​

Employee & Client Feedback:

  • Employees Verbatim: Not publicly available
  • Clients Verbatim: “TechnBrains delivered a high-quality app that exceeded our expectations.”​

Awards & Certifications:

  • Recognitions: Recognized as a top app development company by Clutch in 2024​

NEKLO

General Company Information:

  • Company Name: NEKLO​
  • Founder(s) Name: Chris Brisson
  • Company Website: https://www.neklo.com​
  • Price Model: Both hourly and project-based​
  • Charges Per Project: Approximately $50 to $99 per hour​
  • Number of Employees: 50 to 249​
  • Ratings & Reviews: 4.8 out of 5 based on 20 reviews​ from Clutch

Clients & Industries:

  • Top Customers: SalesMSG, Raken, Complete Solar
  • Industries Served: E-commerce, retail, and technology​

Technologies & Services:

  • Technologies They Work On: Magento, PHP, JavaScript, React, Node.js​
  • Services Offered: E-commerce development, web development, mobile app development, DevOps services​

Employee & Client Feedback:

  • Employees Verbatim: Not publicly available​
  • Clients Verbatim: “NEKLO’s expertise in Magento helped us boost our online sales significantly.”​

Awards & Certifications:

  • Recognitions: Certified Magento Solution Partner

Innosoft Group Pvt. Ltd

General Company Information:

  • Company Name: Innosoft Group Pvt. Ltd
  • Founder(s) Name: Vishal Sehgal​
  • Company Website: https://innosoft-group.com
  • Price Model: Both hourly and project-based​
  • Charges Per Project: Not publicly disclosed​
  • Number of Employees: Approximately 61 to 100
  • Ratings & Reviews: 4.8 out of 5 based on 4 reviews from Indeed

Clients & Industries:

  • Top Customers: Premier League, BetPawa
  • Industries Served: Healthcare, finance, automotive, blockchain, sports betting, gaming 

Technologies & Services:

  • Technologies They Work On: Blockchain platforms (Ethereum, Solana, Polygon), mobile app development frameworks, web development technologies ​
  • Services Offered: Blockchain development, sports betting software, mobile application development, web development, cloud solutions, IT consulting ​

Employee & Client Feedback:

  • Employees Verbatim: “There is a free environment in the company, and the staff is also supportive; you will get job satisfaction by working there.” ​
  • Clients Verbatim: Not publicly available​

Awards & Certifications: 

  • Recognitions: US Immigration And Customs Enforcement

SuperSourcing 

General Company Information

  • Company Name: SuperSourcing
  • Founder(s) Name: Mayank Pratap Singh
  • Company Website: https://supersourcing.com/
  • Price Model: Both hourly and project-based
  • Charges Per Project: Custom pricing based on client needs and project scope
  • Number of Employees: 51-200 
  • Ratings & Reviews: 4.8/5 from Glassdoor

Clients & Industries

  • Top 5 Customers: Razorpay, OpenAI, Swiggy, Zomato, BharatPe
  • Industries Served: Technology & SaaS, Fintech & Banking, E-commerce & Retail, Healthcare & Pharma, Education & EdTech

Technologies & Services

  • Technologies They Work On: Artificial Intelligence, Blockchain, Cloud Computing, Infrastructure Services, Metaverse, QA Automation, Security Testing, Solution Architecture, UI/UX ​
  • Services Offered: Software development, mobile & web development, staff augmentation, IoT & cloud solutions, IT outsourcing, AI & machine learning, quality assurance, UI/UX design, digital transformation, low-code/no-code development ​

Employee & Client Feedback

  • Employees Verbatim: “SuperSourcing allows employees to grow and learn from top industry professionals. The company culture is supportive and innovative.”
  • Clients Verbatim: “SuperSourcing helped us hire deeply vetted developers within days, saving us time and effort.”

Awards & Certifications

  • Recognitions: LinkedIn Top 20 Startups in India – 2023 & 2024, Google AI-Accelerated Top 20 Startup in India – 2024, Best AI-Powered Tech Hiring Platform – 2024, Recognized by Nasscom as an Emerging IT Staffing Leader

Inoxoft

General Company Information:

  • Company Name: Inoxoft​
  • Founder(s) Name: Liubomyr Pohreliuk
  • Company Website: https://inoxoft.com
  • Price Model: Both hourly and project-based​
  • Charges Per Project: Starting at $9,500 for custom software development; starting at $4,000 for web development 
  • Number of Employees: Approximately 230+ ​
  • Ratings & Reviews: 4.9 out of 5 based on 59 reviews from Clutch​

Clients & Industries:

  • Top Customers: Maxfin Partners Limited, Bos-Dimex
  • Industries Served: Healthcare, education, logistics, fintech, real estate 

Technologies & Services:

  • Technologies They Work On: React, .NET, Java, Flutter, Python (Django), Node.js ​
  • Services Offered: Custom software development, web development, mobile app development, AI development, IT managed services, CRM consulting, ERP consulting, UI/UX design 

Employee & Client Feedback:

  • Employees Verbatim: “Cool and very beautiful team, cool values, volunteering, nice projects, etc.” ​
  • Client Verbatim: “INOXOFT’s work has been flawless so far. The team is highly committed to meeting the client’s requirements and requests.” 

Awards & Certifications:

  • Recognitions: ISO 27001 certified, Microsoft Gold Partner, Google Cloud Partner, ISTQB Silver Partner

Appinventiv

General Company Information:

  • Company Name: Appinventiv Technologies Pvt. Ltd.
  • Founder(s) Name: Saurabh Singh (CEO and Director)
  • Company Website: https://appinventiv.com​
  • Price Model: Both hourly and project-based
  • Charges Per Project: Approximately $25 to $49 per hour ​
  • Number of Employees: Over 1,600
  • Ratings & Reviews: 3.6 out of 5 based on over 499 reviews from Glassdoor

Clients & Industries:

  • Top Customers: KFC, Adidas, IKEA 
  • Industries Served: Fintech, healthcare, e-commerce, education, and more

Technologies & Services:

  • Technologies They Work On: Various mobile and web development technologies, AI, blockchain​
  • Services Offered: Mobile app development, web development, software development, digital transformation, cloud services, blockchain, data science, AI, DevOps 

Employee & Client Feedback:

  • Employees Verbatim: “Great work environment with a major focus on learning & skill development.” ​
  • Clients Verbatim: “They combine high-quality products and quick performance within budget constraints.” 

Awards & Certifications:

  • Recognitions: Top Mobile App Development Company by Clutch, App Development Company of the Year by Entrepreneur, Best Place to Work by Outlook India, AWS Advanced Tier Services Partner, Deloitte Tech Fast 50 Award 

DataArt

General Company Information:

  • Company Name: DataArt​
  • Founder(s) Name: Eugene Goland
  • Company Website: https://dataart.com​
  • Price Model: Both hourly and project-based​
  • Charges Per Project: Not publicly disclosed​
  • Number of Employees: Over 5,800​
  • Ratings & Reviews: 4.3 out of 5 based on 29 reviews from Indeed

Clients & Industries:

  • Top Customers: NASDAQ, Metro Markets, Invesco​
  • Industries Served: Finance, healthcare, travel, media, and telecommunications​

Technologies & Services:

  • Technologies They Work On: Various programming languages and frameworks, including .NET, Java, JavaScript, Python​
  • Services Offered: Custom software development, IT consulting, cloud services, data and analytics, DevOps, QA and testing​

Employee & Client Feedback:

  • Employees Verbatim: “Great place to work with many opportunities for learning and personal development.” ​
  • Clients Verbatim: Not publicly available​

Awards & Certifications:

  • Recognitions: Included in the Inc. 5000 list of fastest-growing private U.S. companies, recognized on the Financial Times’ list of Americas’ Fastest-Growing Companies, named among Newsweek’s Top 100 Global Most Loved Workplaces 

Netguru

General Company Information:

  • Company Name: Netguru​
  • Founder(s) Name: Wiktor Schmidt and Jakub Filipowski
  • Company Website: https://www.netguru.com​
  • Price Model: Both hourly and project-based​
  • Charges Per Project: Not publicly disclosed​
  • Number of Employees: Over 700​
  • Ratings & Reviews: 4.0 out of 5 based on 4 reviews from Indeed

Clients & Industries:

  • Top Customers: UBS, JoySteam, Otodam
  • Industries Served: Fintech, healthcare, retail, education, and more​

Technologies & Services:

  • Technologies They Work On: Ruby on Rails, JavaScript, Python, React, Node.js​
  • Services Offered: Web development, mobile app development, product design, consulting, AI, machine learning​

Employee & Client Feedback:

  • Employees Verbatim: “Great work environment with a major focus on learning & skill development.” 
  • Clients Verbatim: Not publicly available​

Awards & Certifications:

  • Recognitions: Three-time winner of the Deloitte Technology Fast

Mercury Development – San Diego, California, USA

General Company Information:

  • Company Name: Mercury Development​
  • Founder(s) Name: Joshua Greenman​
  • Company Website: https://www.mercdev.com
  • Price Model: Both hourly and project-based​
  • Charges Per Project: Not publicly disclosed​
  • Number of Employees: Approximately 180 engineers​
  • Ratings & Reviews: 4.7/5 based on over 25 reviews from Glassdoor​

Clients & Industries:

  • Top Customers: FitBit, Burger King, Cisco​
  • Industries Served: Various sectors, including startups and Fortune 500 companies​

Technologies & Services:

  • Technologies They Work On: iOS, watchOS, Android, and various cutting-edge technologies​
  • Services Offered: Custom Software Development, Mobile App Development​

Employee & Client Feedback:

  • Employees Verbatim: “Mercury provides exceptional quality of service and offers cutting-edge tech solutions across the board.”​
  • Clients Verbatim: “Mercury Development has worked in various development capacities for different companies, creating apps for car sales, fixing a fire safety app, and more.”​

Awards & Certifications:

  • Recognitions: Multiple iOS and watchOS apps featured by Apple; Android apps featured by Google

Conclusion 

Choosing the right FinTech app development company can accelerate your product’s time-to-market, enhance security, and improve user experience. With New York leading the global financial technology revolution, the companies listed above stand out for their expertise, innovation, and proven track records in building world-class FinTech applications.

Looking for the best FinTech app development partner for your business?
Contact SuperSourcing, a top FinTech app development company in New York, and turn your vision into reality today. Whether launching a next-gen banking app, digital wallet, or AI-driven investment platform, our experts can help you build secure, scalable, and future-ready financial applications.

FAQs on Top FinTech App Development Companies in New York

1. What are the key factors in choosing a FinTech app development company?

When selecting a FinTech app development partner, consider the following:

  • Experience in FinTech (Have they built similar apps before?)
  • Compliance & Security (Do they follow financial regulations like PCI DSS GDPR?)
  • Tech Stack (Blockchain, AI, Cloud, API integrations, etc.)
  • Client Reviews & Case Studies (Success stories and testimonials)
  • Scalability & Post-Launch Support

2. How much does developing a FinTech app in New York cost?

The cost of developing a FinTech app in New York can range from $50,000 to $500,000+, depending on the complexity, features, compliance requirements, and development team expertise.

3. What technologies are used in FinTech app development?

Top FinTech development companies use:

  • Blockchain (for secure transactions and smart contracts)
  • AI & Machine Learning (for fraud detection, credit scoring, robo-advisors)
  • Cloud Computing (AWS, Azure for scalability)
  • API Integrations (Plaid, Stripe, PayPal for financial services)
  • Cybersecurity Protocols (biometric authentication, encryption)

4. How long does it take to develop a FinTech app?

A simple FinTech app may take 4-6 months, while a more complex solution with AI, blockchain, and compliance integrations can take 12-18 months.

5. Why is New York a leading hub for FinTech development?

New York is a global financial center, home to Wall Street, leading financial institutions, and a thriving startup ecosystem. The city attracts top talent, investors, and regulatory support, making it a powerhouse for FinTech innovation.