Top 10 Fintech Software Development Companies

The fintech industry continues to evolve rapidly, driven by digital payments, embedded finance, blockchain, AI-powered risk analysis, and regulatory technology. As financial institutions and startups modernize their platforms, choosing the right fintech software development partner has become a critical business decision. 

This list highlights ten fintech software development companies that have consistently demonstrated strong technical capabilities, industry knowledge, and experience building secure, scalable financial solutions. The companies are listed in a specific order and evaluated based on their background, fintech expertise, and global presence. 

Leading Fintech Software Development Companies to Watch 

Below is a curated list of fintech software development companies recognized for their experience in building secure, scalable financial technology solutions. 

1. Radixweb 

• Founded: 2000 – 25+ years in business 

• Location: Texas, USA  

• Employees: ~650+ full-time specialists (engineering + product teams).  

• Projects / Client scope: 5,500+ projects delivered for 3,000+ clients (global SMBs to enterprises). 

Radixweb is a top fintech development company specializing in AI-powered custom software and digital transformation solutions for financial organizations. The company focuses on building secure, scalable fintech platforms that support innovation, regulatory requirements, and modern customer experiences. 

With deep fintech domain expertise, Radixweb delivers tailored solutions across payments, financial platforms, and data-driven applications. Its teams combine AI, cloud, and agile engineering practices to help businesses improve efficiency, accelerate delivery, and adapt to evolving market demands. 

Known for its client-focused approach and industry recognition, Radixweb emphasizes long-term partnerships and measurable business outcomes. By aligning technology execution with business objectives, the company helps fintech organizations transform complex challenges into sustainable growth opportunities. 

Key fintech capabilities: 

• Custom fintech software development 

• Payment and transaction platforms 

• Financial data analytics and reporting 

• Security-first architecture for regulated environments 

2. Fingent 

• Founded: 2003 – 20+ years in Business 

• Locations: New York (USA) 

• Employees: 600+ qualified professionals 

• Projects Completed: 800+ globally (wide enterprise and SMB portfolio) 

Fingent is a global technology and software engineering partner that delivers custom digital transformation solutions across industries, including financial services. With over two decades of experience solving complex business problems through tailored software, Fingent helps organizations build secure, scalable platforms that drive operational efficiency and digital growth. The company combines industry best practices with deep technical expertise to deliver impactful outcomes for clients of all sizes. 

Key fintech capabilities: 

• Custom software for financial services and digital businesses 

• Secure, compliant enterprise application development 

• Cloud-native and data analytics solutions 

• AI and automation integration for financial workflows 

3. Itexus 

• Founded: 2013 -12+ years in business. 

• Locations: Eastern Europe development center 

• Employees: ~100+ in-house professionals 

• Projects Completed: ~220+ software solutions delivered globally 

Itexus is a custom software development firm that partners with startups, mid-sized companies and enterprises to create advanced web and mobile applications with a focus on business outcomes. The company emphasizes quality, transparency, and agile delivery, enabling clients to transform ideas into robust tech products. Itexus has a strong track record in building scalable solutions across multiple domains, including deep expertise in fintech. 

Key fintech capabilities: 

• End-to-end fintech application development (web, mobile, enterprise)  

• Banking, payments, lending and investment systems 

• Wealth management and credit scoring platforms 

• RegTech, financial prediction and algorithmic trading systems 

4. Tata Consultancy Services (TCS) 

• Founded: 1968 – 58+ years in business.  

• Location: Mumbai, India.  

• Employees: ~608,000 (headcount reported around 607,979 in FY25 figures).  

• Projects / Client scope: very large-scale enterprise transformations – 64 clients with >US$100M engagements (recent client metrics); hundreds to thousands of global financial-services implementations. 

TCS is one of the largest IT services and consulting companies globally, with a strong presence in financial services technology. The company works with banks, insurers, and fintech firms to develop and modernize financial systems. 

TCS combines domain expertise with large-scale delivery capabilities, making it a common choice for enterprise fintech transformation projects. 

Key fintech capabilities: 

• Banking and capital markets solutions 

• Digital payment systems 

• Financial system modernization 

• Regulatory compliance support 

5. Infosys 

• Founded: 1981 – 45+ years in business.  

• Location: Bengaluru, India.  

• Employees: ~323k–330k+ (company reported ~323,578 to 330k range recently).  

• Projects / Client scope: large-scale financial software programs and Finacle core-banking footprint – Finacle: 500+ deployments (Finacle client footprint) and Infosys recently reported 4,600 AI projects across enterprise clients (example metric for digital/AI engagements). 

Infosys is a global consulting and technology services company with a long-standing focus on financial services. Its fintech work includes digital banking, payments, lending platforms, and financial analytics. 

The company supports both traditional financial institutions and fintech innovators through platform development and digital transformation initiatives. 

Key fintech capabilities: 

• Digital banking and lending platforms 

• Payment and transaction processing 

• Financial analytics and automation 

• Cloud and data-driven fintech solutions 

6. Fiserv 

• Founded: 1984 – 42+ years in business.  

• Location: Brookfield / Milwaukee area, Wisconsin, USA.  

• Employees: ~38,000 (reported end-2024 headcount ~38k).  

• Projects / Client scope: Serves nearly 10,000 financial institutions and manages millions of merchant locations – core processing, merchant payments and digital banking scale. 

Fiserv is a global financial technology company that provides software and infrastructure for payments, digital banking, and financial services. The company works with banks, credit unions, merchants, and fintech providers to support secure, high-volume financial transactions. 

Fiserv focuses on building reliable, scalable platforms designed for regulated financial environments, helping organizations modernize payment systems and deliver seamless digital financial experiences. 

Key fintech capabilities: 

• Payment processing and digital commerce platforms 

• Core banking and financial services software 

• Secure transaction and card issuing systems 

• Scalable fintech infrastructure 

7. SoftServe 

• Founded: 1993 – 33+ years in business.  

• Locations: dual presence – Lviv, Ukraine (European center) and Austin, Texas, USA. 

• Employees: ~11,000+ (company reports >11,000 employees across offices).  

• Projects / Client scope: large number of digital engineering and platform projects for fintech and banking clients; the company emphasizes cloud-native and AI-enabled financial solutions (exact public project count not published). 

SoftServe is a global software development and digital advisory company with experience delivering fintech solutions for financial institutions and technology-driven businesses. The company specializes in building modern, cloud-based financial applications. 

SoftServe supports fintech innovation through digital banking platforms, payment solutions, and data-driven systems, helping organizations adopt secure, scalable, and future-ready financial technologies. 

Key fintech capabilities: 

• Custom fintech software development 

• Digital banking and payment platforms 

• Financial data analytics and AI-driven solutions 

• Cloud-native fintech architectures 

8. Capgemini 

• Founded: 1967 – 59+ years in business.  

• Location: Paris, France.  

• Employees: ~343k (≈342,700 – 349,400 range depending on quarter; group headcount reported ~342,700 as of March 31, 2025).  

• Projects / Client scope: very large-scale enterprise engagements across banking, payments and insurance; multiple global transformation programs (client/project counts expressed as thousands of program deliveries). 

Capgemini is a global consulting and technology services company with deep expertise in financial services. It works closely with banks, insurers, and fintech companies on digital transformation and platform modernization. 

The company’s fintech capabilities span strategy, engineering, and large-scale system implementation. 

Key fintech capabilities: 

• Financial services digital transformation 

• Payment and banking platforms 

• Regulatory and compliance solutions 

• Data-driven financial systems 

9. IBM 

• Founded: 1911 – 115+ years in business.  

• Location: Armonk, New York, USA.  

• Employees: ~270k (IBM reported ~270,300 in 2024; numbers vary slightly by filing).  

• Projects / Client scope: very large client base across industries; financial-services customer counts in the tens of thousands in IBM datasets (industry-specific customer counts reported). 

IBM has a long history of supporting the financial services industry through technology and consulting. Its fintech-related solutions focus on data, security, AI, and hybrid cloud platforms. 

IBM works with financial institutions that require advanced analytics, system reliability, and enterprise-grade security. 

Key fintech capabilities: 

• Financial data analytics and AI 

• Hybrid cloud infrastructure 

• Security and fraud prevention 

• Enterprise fintech platforms 

10. Accenture 

• Founded: 1989 – 37+ years in business.  

• Location: Dublin, Ireland.  

• Employees: ~779,000 (reported at fiscal-2025 year-end; ~784,000 reported in Q1 FY26).  

• Projects / Client scope: ~9,000 clients served, heavy presence in large fintech transformation programs, and managed services across major financial institutions. 

Accenture is a global professional services company offering consulting, technology, and managed services to the financial sector. It supports fintech initiatives across strategy, development, and operations. 

Accenture’s fintech work often involves large-scale transformation programs and integration of digital financial platforms. 

Key fintech capabilities: 

• Fintech strategy and implementation 

• Digital banking and payments 

• Financial system integration 

• Regulatory and risk management solutions 

Final Thoughts 

The fintech landscape continues to grow more complex as financial institutions adopt digital-first models and emerging technologies. Each of the companies listed above brings a distinct set of strengths, ranging from enterprise-scale platforms to agile fintech product development. 

Choosing the right fintech software development company depends on factors such as project scope, regulatory requirements, scalability needs, and long-term technology strategy. Evaluating these companies based on their experience and capabilities can help organizations identify the best partner for their fintech initiatives.