10 Top Fintech Software Development Companies in 2025

The financial technology (Fintech) sector is always changing. And given the competition, choosing a software development partner is a major decision for any company in this space. 

Whether this is for updating an old banking system, launching a new DeFi platform, or adding special skills to a team.

Finding a reliable Fintech software development company in the crowded market can be hard. Which is why it may require deep industry knowledge, a specific set of technologies, or a certain kind of working agreement.

In this article, we will look at 10 of the top Fintech software development companies for 2025. 

What is Fintech Software Development?

Fintech software development is a special type of work. This involves software development for fintech, as well as, building and maintaining software for the financial services industry. It is different from general software engineering.

Fintech app development services need a deep understanding of how finance works, rules for compliance, and data security. It also requires knowledge of new financial technologies. This field covers many kinds of applications.

The top fintech software development companies handle a range of dev work from mobile banking apps and eWallets to complex trading platforms and loan systems. This also includes blockchain-based decentralized applications (dApps) and fintech product development.

Benefits of Partnering with a Fintech Software Development Company

Choosing to work with a specialized Fintech development firm gives several clear advantages. These fintech app development companies bring existing industry knowledge. This can greatly speed up project timelines. It can also lower risks related to rules and complex financial details.

• Deep Domain Expertise: Fintech software development companies understand the details of finance. They know about compliance standards and how payment gateways are built. This removes the learning curve. It helps make sure the final product is built on a solid base of industry best practices.
  
• Faster Time-to-Market: Many dedicated Fintech specialists have their own platforms or white-label solutions. These can be pre-built banking or payment platforms. This allows businesses to launch complex products much faster. It is also more cost-effective than building everything from the start.
  
• Access to Specialized Talent: The Fintech space needs a unique mix of skills. These skills are in areas like blockchain, artificial intelligence, and cybersecurity. Partnering with a specialized firm for fintech development outsourcing gives you instant access to a team of experts. These experts are experienced in using these technologies for finance.
  
• Improved Security and Compliance: Fintech development companies know the strict security rules of the financial industry. They build solutions with security and compliance in mind from the beginning. They include features like fraud detection systems and strong data protection to keep financial data safe.
  
• Planned Partnership: The best fintech software development companies act as more than just sellers; they become partners. They guide clients from the first idea to a fully grown product. They give business analysis and technology consulting. This helps match the software with long-term business goals.

Top Fintech Software Development Companies

1. Entrans

Entrans presents itself as a digital engineering firm that uses AI. We aim to serve both the enterprise market and startups.

Our fintech software development company delivers skillful work, not just more staff.

We’ve also worked on improving how companies follow regulations in the Banking and Financial Services sector. For sensitive information and compliance for automation, we’ve been able to implement an authentication layer in CCaaS tools.

Aside from this, our enterprise agentic software, Thunai, is able to auto-escalate tickets, automatically reroute calls, and reply on full-autopilot via AI voice, chat, and email agents that understand the customer’s issues through a unified knowledge base.

Entrans has a global delivery model in the USA and India. Our team of over 450 tech experts can handle large and complex projects - with custom AI and fintech solutions designed for your company specifically.

Key Services of Entrans:

• Legacy System Modernization: Improving the operation and security of old but essential financial systems.
  
• Automation Powered by AI: Using artificial intelligence to automate complex tasks and improve how work gets done. Entrans is also a top enterprise AI company.
  
• Blockchain Solutions: Creating and setting up blockchain technology for better security and openness in financial deals.
  
• Cybersecurity Consulting: Giving expert advice to protect sensitive financial data and make sure systems are safe.
  
• Data and Cloud Engineering: Supplying services in data engineering, advanced analytics, and cloud setup to help financial firms use their data well. We handle development and architecture on AWS, Azure, GCP, alongside several other ecosystems.
  
• Product Development Services: manages the complete product lifecycle, from initial ideation and strategy to final deployment and ongoing support. This end-to-end ownership transforms concepts into market-ready products.
• Global Capability Center Services: We specialize in establishing and scaling Global Capability Centers, handling everything from talent acquisition to operational management.
• DevOps Services: Entrans accelerates the delivery of applications and services, improving deployment frequency and reliability for our clients.
• Data Analytics and CI/CD Pipelines: We build CI/CD pipelines to automate the integration and delivery of data analytics solutions. This enables businesses to process data in real-time and continuously deploy insights.
  

2. Solulab

Solulab has a strong history in finance and enterprise technology. This fintech software development company is a market leader in enterprise Web3, Blockchain, and AI solutions.

Solulab is very involved in new financial technology. It is a good partner for projects about DeFi platforms, crypto exchanges, and asset tokenization.

Their leaders' backgrounds add to their credibility. They work to build secure, expandable, and decentralized systems for businesses that want to innovate in the crypto world.

Key Services of Solulab:

• Web3 & Crypto Development: Complete crypto exchange development. They also work on asset tokenization and a full set of DeFi development services for lending and staking.
• AI in Finance: Developing solutions that use AI. This includes trading bots, robo-advisors, advanced credit risk models, and fraud detection systems.
• Blockchain Development: A main skill is building decentralized applications (dApps), DAOs, and NFT marketplaces.
• Generative AI Solutions: Specializing in Generative AI for creating content, automation, and predictive analytics.

3. Innowise

Innowise Group was started in 2007. It is a large, international software development company with over 18 years of experience. The team has between 1,500 and 2,500+ professionals. This makes Innowise one of the lower-risk fintech development companies to work with.

This top fintech software development company is a good choice for large businesses that need complex system development and long-term support. The company has a huge portfolio of over 1,300 delivered projects. It also has a 93% client retention rate.

This shows their commitment to building lasting partnerships. Their global presence with offices worldwide lets them serve clients everywhere.

Key Services of Innowise:

• Custom Financial Software: Developing solutions to make work simpler, improve security with fraud detection, and speed up transactions.
• IT Staff Augmentation: Supplying dedicated teams and flexible staff extension models for big projects.
• Digital Transformation: Updating businesses with ERP, CRM, and BPM systems.
• Big Data, AI, and Blockchain: Using deep expertise in new technologies to meet the needs of the Fintech industry.

4. Geniusee

Geniusee is a custom software development company. It has found a special role as a technology partner for startups and smaller businesses. It works a lot in the Fintech and Edtech sectors. The fintech software development company has a proven history of working with companies from top programs like YCombinator.

This shows their ability to work well in a fast-paced setting. With a team of over 220 experts, Geniusee is one of the top fintech software development companies known for quick team extension.

Their credibility is supported by key certificates, like AWS Advanced Tier Service Partner. Clients often say they are a true partner who thinks critically and takes ownership.

Key Services of Geniusee:

• Fintech Application Development: Building fintech software for eWallets, banking platforms, lending systems, and trading applications.
• AI and LLM Development: Presenting a wide range of AI services. These include generative AI, custom chatbots, and Large Language Model (LLM) development.
• MVP Development: Specializing in helping startups build and launch a Minimum Viable Product quickly.
• Cloud & DevOps: A strong specialty in cloud systems, particularly with AWS services, making them one of the more reliable DevOps companies in terms of fintech use cases.

5. KindGeek

KindGeek was founded in 2015. It has a very clear and distinct specialty as a product engineering company. The fintech software development company has a deep specialization in the Fintech field. Unlike other fintech app development companies, it has built its entire portfolio and systems around financial technology.

It treats clients as partners. Its main mission is to help them succeed. Their Product-Oriented Engineering Culture is a guiding idea that shapes their services.

This deep specialization is their key difference. It makes them a great partner for fintech companies that need a team with a natural understanding of the complex financial world.

Key Services of KindGeek:

• White-Label Platforms: A key product is their ready-to-use Neobank solution and a Payments Platform. These can greatly speed up the launch of new financial products.
• Main Fintech Applications: Building software from scratch for money transfers, digital wallets, and invoicing.
• New Technologies: Combining AI/ML for predictive analytics and developing solutions for crypto fintech app development services, NFTs, and DeFi.
• Financial Connections: Deep expertise in connecting with key financial systems like Visa and Mastercard payment networks.

6. Inoxoft

Inoxoft is an award-winning custom fintech software development company has over a decade of market experience. The company presents itself as a creator of digital solutions for startups and smaller businesses.

With a team of over 230 specialists, Inoxoft gives complete, full-stack software development for fintech. This is one of the fintech software development companies that goes from early business analysis to expandable MVPs.

Their credibility is backed by ISO 27001 certification for security. They also have partnerships with Microsoft and Google Cloud.

Key Services of Inoxoft:

• Custom Fintech Solutions: Building dependable, high-performance software for the finance industry. This includes AI-based products for big clients.
• AI and Machine Learning: A dedicated AI practice with consulting, AI agent development, and custom ML models for prediction.
• IT Outstaffing: Supplying flexible working models. These include Team Extension and full Dedicated Teams for long projects.
• Web and Mobile Development: Building custom web applications and mobile apps for different platforms.

7. Itexus

Itexus delivers high-quality, cost-effective solutions. This top fintech development company’s clients include startups, midsize companies, and large brands.

Itexus has a strong interest in the startup world. This fintech software development firm also has a structured path for new companies to test and launch their ideas.

This path goes from prototypes to full-featured products. The company has a team of around 140 professionals. 

Key Services of Itexus:

• Extensive Fintech Products: A key area, with fintech app development services including Banking as a Service (BaaS) solutions, eWallet app development, and trading systems.
• Startup Services: A special set of services including Prototype development, MVP development, and a CTO-as-a-Service product.
• Project Rescue: A special service for taking over and fixing projects that are having problems.
• Digital Transformation Consulting: Guiding companies in updating their technology and making business tasks simpler.

8. ScienceSoft

ScienceSoft's history starts in 1989. It is the most experienced company in this analysis. It brings 35 years of IT industry expertise. This long history has allowed them to build a huge portfolio of over 4,000 successful projects.

ScienceSoft acts as a global supplier of software development for fintech and high-level IT consulting. This top fintech software development company works with mid-sized and large businesses. 

Key Services of ScienceSoft:

• Broad Financial Industry Coverage: Serving Banking, Insurance, Lending, and Investment industries with custom software solutions.
• IT Consulting: High-level consulting services. This includes digital transformation consulting and project management help.
• Data Analytics and AI: A strong practice with business intelligence, big data solutions, and machine learning.
• Cybersecurity Services: A full range of security services. This includes penetration testing and managed security, where they have shown special expertise.

9. Topflight

Topflight Apps was founded in 2016. It is a boutique digital and AI consultancy. It has a very strong and clear specialty in the healthcare industry. Health-tech is their main market. But their deep expertise in areas relevant to finance makes them a good niche choice.

But their skill in Revenue Cycle Management (RCM) in healthcare is directly transferable.

RCM involves automating billing and handling insurance claims, which is like payment and insurtech. They are a specialized team of under 50 professionals. That said, this is one of the top fintech software development companies that operates at a premium price point.

Key Services of Topflight:

• AI Innovation & Automation: A primary strength. This includes automating complex tasks and building AI-powered support tools.
• Secure & Compliant Data Handling: Expertise in managing sensitive data and meeting complex compliance rules like HIPAA. This is a necessary skill for Fintech.
• Mobile App Development: A primary service area. It accounts for 30% of their development work.
• Transferable Healthcare Expertise: Proven skills in Revenue Cycle Management (RCM) are very useful for payment and insurance technology.

10. Brainhub

Brainhub was founded in 2015. It is a software engineering agency. This company helps technology companies handle software development for fintech and software solutions. They act as a technology partner. They supply high-performing, pre-vetted teams of software engineers. They are known for technical excellence and a business-minded style of development.

Brainhub is known for its expertise in modern JavaScript-based technologies. This fintech software development company has a main team of about 100 professionals. However, can also work with over 600 developers through an extended talent network.

That said, the fintech software development firm operates at a premium price point. This makes it one of the top fintech software development companies for well-funded startups and tech companies that want top-tier engineering talent.

Key Services of Brainhub:

• Fintech and Banking Services: Brainhub serves the Fintech, Banking, and Accounting industries with secure and expandable web and mobile apps.
• Modern JavaScript Expertise: A specialization in modern technologies like React Native, Node.js, and .NET.
• Team Augmentation: A main service to grow client teams with pre-vetted, high-performing engineers.
• Product Design: Giving workshops and UX/UI design to make sure solutions match business goals.

Main Services Offered by Fintech Software Development Companies

Each fintech software development company has its own special skills. But the leading Fintech software development firms usually have a full set of services. These fintech app development services are designed to cover the entire product lifecycle. They can be grouped into several key categories.

1. Custom Software Development: This is the basic service for fintech software development companies. It includes building custom financial applications from scratch. They are made for a client's specific business needs. This covers web platforms, mobile banking apps, and complex systems for trading or lending.
2. AI and Data Science: Using Artificial Intelligence is important in modern finance. Services include developing AI-powered fraud detection systems and creating trading bots. Fintech software development companies also build advanced credit risk models and use Generative AI for automation.
3. Blockchain and Web3 Development: For companies on the cutting edge of finance, these fintech app development services are essential. They include developing crypto exchanges, asset tokenization platforms, and decentralized applications (dApps).
4. Legacy System Modernization: Many established financial firms run on old technology. A key service is updating these complex old systems. This improves their security, operation, and ability to grow. Fintech software development companies also lets them connect with modern digital systems.
5. IT Consulting: Beyond coding, top firms give high-level advice. This includes a Discovery Phase for new products and technology consulting to choose the right architecture. It also includes a CTO-as-a-Service product for startups that need top-level technical leadership.
6. Team Augmentation and Dedicated Teams: To give clients flexibility, fintech app development companies have different working models. This can be IT staff augmentation, where a few developers join a client team. Fintech software development companies can also supply a full, self-managed dedicated team for a long project.

How to Choose the Right Fintech Software Development Company

Selecting the ideal development partner requires a good plan. Different fintech app development companies serve different client needs. It is important to match a vendor's strengths with your project's specific needs. Here is a step-by-step guide to make a good choice:

1. Define Your Project and Business Needs: Before you search, know your goals. Are you a startup needing to build an MVP quickly? Or are you a large business looking to update an old system? 
2. Assess Their Fintech Specialization: Look past a fintech software development company just listing Fintech as an industry they serve. Check how deep their specialization is.
3. Review Their Technical Abilities: Check that the firm's technology set matches your vision. If your project uses new technology, a partner like Solulab might be the best fit. 
4. Consider Company Scale and Cultural Fit: The size of the fintech software development company is important. A large firm like Innowise can handle multiple big projects at once. This gives dependability and low risk. 
5. Examine Client Feedback and Reputation: Look for fintech software development companies with consistent, verified client reviews on sites like Clutch. Pay attention to feedback on project management, communication, and work quality. A perfect 5.0 rating across many reviews, like Geniusee's, is a strong sign of good service quality.
6. Analyze Pricing and Engagement Models: Understand their pricing. It could be an hourly rate or a fixed project cost. A fintech software development company’s minimum project size can show its target client. A $50,000 minimum project size is for well-funded projects. A lower minimum gives more flexibility for smaller tasks.

Future Trends in Fintech Software Development

The Fintech world is always in motion. It is affected by new technology and changing customer expectations. Staying ahead of key trends is important for any business that wants to innovate and compete. Based on the skills and work of leading fintech software development companies, several big trends are set to define the future of Fintech.

• Hyper-Automation with AI: Using Artificial Intelligence will go beyond simple automation. Fintech software development companies will involve to using advanced AI to automate complex, end-to-end business tasks. 
• The Rise of Decentralized Finance (DeFi) 2.0: The first wave of DeFi was about crypto assets. The next phase will involve tokenizing real-world assets like real estate. This will require strong and secure blockchain solutions. 
• Embedded Finance and BaaS: Banking as a Service (BaaS) will become more common. It will allow non-financial companies to put financial services directly into their products. An example is a "buy now, pay later" option on a shopping site. This trend needs deep expertise in API development and secure connections.
• Growth of Enterprise Web3: As blockchain technology gets better, businesses will move beyond test projects. They will build enterprise-grade Web3 solutions. This includes creating private blockchains for supply chain finance. It also includes developing secure digital identity solutions.
• Continuous Legacy Modernization: Updating old systems will no longer be a one-time thing. It will be an ongoing activity. Financial firms will use agile methods and cloud-native software development for fintech to continuously update their main systems.

Why Choose Entrans as Your Fintech Software Development Partner?

At Entrans, we do not just deliver code. We aim to deliver skillful execution. This is a promise of dependable, expandable, and well-connected solutions. We are a fintech software development company that creates apps designed for real-world complexity.

Aside from partnering with Fortune 200 and Fortune 500 companies on projects, we’ve also built our own enterprise agentic AI platform, Thunai.

Still not convinced? Well, we did build it from PoC to product launch in under 6 months! (It even won product of the day on ProductHunt)

Want to see how we can help your project? Book a free consultation call.

FAQs for Top Fintech Software Development Companies

1. What is fintech software development?

Fintech software development is the special practice of creating and maintaining software for the financial industry. Fintech software development companies build things like mobile banking apps and trading platforms. It has a strong emphasis on security, compliance, and using technologies like AI and blockchain.

2. Why are banking APIs important in fintech apps?

Banking APIs are important because they let different financial apps talk to each other and share data securely. They are the foundation of Open Banking. They let Fintech apps connect with a user's bank account to give fintech app development services, like seeing all accounts in one place. This supports innovation.

3. What services do fintech software development companies provide?

The top fintech software development companies give a wide range of fintech app development services. These include custom software development, AI solutions for fraud detection, and blockchain development for crypto. They also help with updating old systems. Many have flexible working models like dedicated teams.

4. What are the benefits of outsourcing fintech development?

Outsourcing to a specialized firm gives you access to expert talent without high hiring costs. It speeds up the launch time, especially when using a partner's existing platforms. It also transfers the risk of dealing with complex rules to a partner with experience.

5. How do fintech firms handle compliance with financial regulations?

Fintech software development firms handle compliance by building it into their process from the start. This includes having experts who understand rules like GDPR. They also conduct regular security checks. Many firms hold certificates like ISO 27001 for data security.

6. Which fintech app services support multi-currency and cross-border payments?

Fintech app development services that support this include digital wallet (eWallet) development and payment platform development. It also includes connecting with international payment networks. Companies with blockchain expertise can also build solutions that use cryptocurrencies to make cross-border deals faster and cheaper.

7. How is AI used in fintech software development?

AI is used a lot in Fintech. Key uses include fraud detection systems, trading bots, and machine learning for credit risk models. It is also used for personalized robo-advisors and AI-powered chatbots for customer service.

8. What should startups look for when choosing a fintech partner?

Startups should look for a partner that specializes in working with new companies. The partner should have services like MVP development. They should seek a firm that can act as a true partner. A strong portfolio in their specific area is also valuable.

9. How do fintech development companies support ongoing maintenance and updates?

Top fintech app development companies have ongoing maintenance and support as part of their services. This is often through a managed services model. This includes application support and IT operations help. It also includes updating the software to meet new security standards. This supports the long-term health of the application.

10. What are the key trends in fintech software development for 2025?

Key trends include using AI for hyper-automation and the tokenization of real-world assets in DeFi. Other trends are the expansion of embedded finance and Banking as a Service (BaaS). The development of enterprise-grade Web3 solutions and continuous system modernization are also key trends.