July 15, 2025

Top 5 Fintech Development Companies: Best Partners to Build Your Next Solution

For over 10 years, Artkai has been involved as a software development company in 40+ projects of creating and modernizing various fintech solutions. This experience provided us with diverse practical knowledge in multiple aspects of finance software development. As well, it gave us a deep understanding of the goals that client companies may target and which providers are a good fit for them.

With this article, we employ our expertise to help your business save time and effort in finding a perfect fintech development partner. Here, we have compiled a shortlist of the top 5 development companies with various expertise in fintech solutions. It allows you to quickly review details such as their fintech experience and expertise, the tech stack they employ, and the types of fintech products they primarily deal with.

Additionally, here, you will find key criteria essential to consider, aspects to take into account, and important questions to ask when selecting the best fintech software company that is a perfect fit for your fintech project.

Top 5 fintech software development companies

Let’s dive deeper into what the top fintech software development companies offer to their clients, focusing on what kind of fintech projects they are best suited for and what their expertise and experience are in creating digital products in finance.

Artkai

Best for: fintech product development, complex enterprise solutions, modernization and digital transformation, user-centric design and redesign

Artkai is a financial software development company with experience in modernizing existing digital products and creating cutting-edge fintech solutions. By combining deep domain and technical expertise with a strong focus on UI/UX design, it builds digital products that offer an excellent user experience and solid, scalable architecture. Artkai has taken part in numerous projects on the redesign and modernization of enterprise applications and complex legacy systems for financial companies that strive to take advantage of digital transformation, increase their profits, and expand their impact on the market of financial technology.

The team guarantees clients' cost efficiency through lower operational costs, smart staffing, and lean, high-performing teams. Artkai’s well-tested delivery model enables the delivery of quality, speed, and cost efficiency, without compromise. This fintech development partner is well-equipped to handle complex compliance requirements, data security, and multiple third-party integrations, serving as a reliable partner in delivering tailored solutions that meet specific business goals. The full-fledged team is ready to offer the entire path, from professional product discovery to building a high-performing product with a modern tech stack tailored to specific user needs.

The company's portfolio of fintech projects includes digital banking platforms, payment apps, digital wallets, lending platforms, and investment tools. In particular, the team is a long-term partner providing design and development services for ProCredit international banking solutions.

Fintech Expertise: Artkai has developed dozens of products for the finance industry, ranging from complex, enterprise-level platforms to intuitive and user-friendly solutions for mobile banking. All of them ensure regulatory compliance, a crucial factor in the finance domain. They have redesigned and modernized various legacy fintech software products, creating a transparent process that enables enhanced performance, consistent user experience, and confident planning of future product growth and business success. Artkai’s expertise includes creating multiple innovative applications and customized solutions with user-friendly designs, solid information architecture, and a modern tech stack to ensure convenience and flawless, secure functionality. All that makes Artkai the vendor with deep domain expertise in providing a wide range of financial software development services, helping companies modernize their legacy products during the digital transformation process.

Tech Stack: React, React Native, Node.js, Nest.js, .NET / C#, Python, Django, FastAPI, SWIFT, Kotlin, AWS, Azure, Kubernetes

Product Types: Digital banking systems, investment platforms, mobile banking apps, payment processing systems, lending platforms, personal finance management apps, and neobanking applications

Perfect Fit for: Financial institutions that aim at efficient modernization of the existing products or developing new finance management solutions with a strong focus on user experience, compliance, and scalability.

Cases:

BridgeWallet is a feature-rich digital wallet that supports card management, real-time currency conversion, and seamless payments. Having built it, Arkai helped the client expand their financial ecosystem by entering the mobile market, reaching a high user adoption rate, and seamless integration with their back-end systems and external providers.

Lendora, a secure consumer lending platform, is an innovative fintech solution that Artkai transformed from a concept to a trustworthy, market-ready MVP, enabling the client to enter the market with a strong, functional product. The project resulted in a future-proof, scalable product that is fully compliant with US lending regulations, including KYC and AML, with secure user authentication, role-based access control, audit trails, and encrypted data processing.

Finly is a cross-platform personal finance solution, for which Artkai helped the client successfully launch the product on the US market, involving over 40,000 users and achieving a 43% 3-month retention rate that’s above average for early-stage fintech apps. The project immediately brought the client about 2000 monthly active users engaging regularly with budgeting and goal features, and reached a 7.9 average user satisfaction score according to internal surveys and reviews.

Devico

Best for: rapid financial software development and dedicated team augmentation

Devico is a financial software development company specializing in digitalization within the banking and finance industry. Their advantage lies in the focus on speed and flexibility in software development. Therefore, they are a good option for clients who seek to hire dedicated teams that can scale their development capabilities.

Fintech Expertise: Devico’s domain expertise is grounded in 15 years of industry experience. The team has developed a range of financial software solutions, including mobile app development, custom web applications, and decentralized finance (DeFi) wallets. They are also experienced in successfully integrating emerging technologies to enhance customer experiences and operational efficiency, notably AI and blockchain.

Tech Stack: Angular, Vue.js, React, .NET, Python, Golang, Kubernetes

Product Types: DeFi wallets, trading platforms, lending apps, AI-based risk assessment tools, mobile payment solutions

Perfect Fit for: Companies aiming for rapid development and deployment of financial software solutions and interested in leveraging cutting-edge technologies for digital transformation.

SDK.finance

Best for: Getting a strong backend foundation while building custom fintech platforms

SDK.finance is a team of experienced fintech software developers that specializes in providing a solid backend foundation for a wide variety of digital products in finance management and online banking. They present a beneficial partner, offering professional flexibility for companies with a business objective of developing scalable, custom fintech products, such as neobanks, e-wallets, or payment systems.

Fintech Expertise: SDK.finance is a white-label fintech platform with over 10 years of experience in the financial technology sector. Diverse practical experience enabled them to develop a modular backend system that effectively supports the rapid development of digital banking, e-wallets, and payment processing solutions. They offer source code access, enabling extensive customization and scalability of their fintech solutions.

Tech Stack: Java, PostgreSQL, Angular, Kubernetes

Product Types: Payment gateways, digital banking solutions, e-wallets, money transfer systems, loyalty programs

Perfect Fit for: Businesses and startups that intend to launch fintech products in the short term using a robust, customizable backend infrastructure that minimizes time-to-market and development costs.

ELEKS

Best for: Enterprise-grade fintech solutions and innovation

ELEKS is a financial software development partner with about three decades of practical experience. This team specializes in delivering complex fintech solutions for large enterprises and is recognized for its innovative approach to integrating advanced technologies into financial processes and products. The development services they offer range from banking software to investment and brokerage platforms.

Fintech Expertise: This software development services provider boasts diverse, long-term practical experience in the niche of enterprise-grade fintech projects. They specialize in custom software development services, data analytics, cybersecurity, and AI integration for major financial products. Focusing on innovation and compliance, with a strong track record of building investment platforms, banking software, and risk management tools, the company can ensure it understands its clients' pain points and knows how to solve them.

Tech Stack: .NET, Python, Java, Azure, AWS, Kafka, MongoDB

Product Types: Investment management platforms, fraud detection systems, risk management tools, banking software, regulatory compliance solutions

Perfect Fit for: Banks and major financial institutions that strive to integrate comprehensive, innovative solutions addressing complex operational and regulatory challenges of the finance and banking industries.

Vention

Best for: Startups and scaling fintech products employing advanced technologies

Vention is a fintech engineering and advisory partner for startups and emerging companies, helping them develop and scale fintech products. This team is a suitable choice for businesses that aim to leverage cutting-edge technologies, as its expertise niches include blockchain, AI, and cloud solutions. Their approach to fintech projects is tuned to creating innovative, scalable digital products that can effectively adapt to actual market demands.

Fintech Expertise: With over 20 years of experience, Vention offers fintech software development and consulting services that focus on cloud and hybrid infrastructure solutions. They are experts in blockchain, AI, and digital payment systems, with experience in modernizing legacy systems and developing new fintech applications that ensure scalability and financial data security.

Tech Stack: Python, Node.js, React, AWS, Azure, Solidity, Kubernetes, Redis

Product Types: Blockchain-based payment solutions, digital wallets, hybrid cloud platforms, peer-to-peer lending apps, asset management tools

Perfect Fit for: Startups and growing companies aiming to develop or scale fintech products with advanced technologies and a focus on flexible, secure architectures.

Key Aspects of Fintech Development: How Top Software Developers Approach Them

Whether you are launching a digital wallet, providing mobile banking services, setting up a lending platform or blockchain-powered payment system, or want to refresh your growing finance management application, each project devoted to fintech software development deals with a set of key aspects that crucially influence the quality of a financial product. Among them, there are such critical aspects as:

Regulatory compliance
Security
Data-driven decisions
API integrations
User-friendly interface

Let’s look at how the top fintech software companies approach them and highlight their advantages in the mentioned aspects.

Regulatory compliance

One of the aspects that requires deep knowledge and care in providing fintech development services is that the domain is heavily regulated. Compliance is crucial for financial products and wealth management tools, and here’s how top companies consider it:

Artkai: Strong focus on GDPR, AML, KYC, and PSD2 compliance, ensuring that fintech products meet both EU and US financial regulations.
Devico: Experience in developing regulatory-compliant fintech solutions, with a particular focus on AML and PCI DSS standards.
SDK.finance: Built-in compliance modules for AML, KYC, and data protection, allowing for faster integration of regulatory features.
ELEKS: Extensive experience in building fintech products that comply with multiple regional regulations, including GDPR, CCPA, and MiFID II.
Vention: Provides compliance consulting alongside development, specializing in blockchain and digital payment systems that align with financial regulatory frameworks.

Security

Personal and financial data security is another top priority in modernization or building digital products of all levels and complexity for the finance industry. So, top software developers put much effort into handling data protection and risk mitigation in the process of financial app development, for example:

Artkai implements multi-layered security protocols and data encryption.
Devico specializes in building secure payment gateways that incorporate two-factor authentication and encryption standards.
SDK.finance incorporates pre-built security features into its modular platform, including fraud detection and transaction monitoring.
ELEKS develops secure financial systems using advanced AI-driven fraud detection and data encryption.
Vention integrates blockchain-based security and real-time risk assessment for digital wallets and payment systems.

Data-driven decisions

Data-driven decision-making is crucial for fintech products and effective financial data management, so finance software development services must also encompass a range of data processing capabilities. In particular, the companies in our list approach that aspect in the following ways:

Artkai: Develops advanced data visualization dashboards for customer insights and transaction monitoring.
Devico: Integrates analytics modules that provide actionable insights for financial data management.
SDK.finance: Offers pre-built analytics tools with real-time transaction monitoring and user behavior tracking.
ELEKS: AI-powered reporting systems for investment platforms, fraud detection, and regulatory compliance.
Vention: Data-driven fintech solutions with predictive analytics and custom reporting dashboards.

API integrations

API integrations are essential for enabling digital products in the financial industry to connect with external services, such as payment gateways, banking systems, and credit bureaus. Building specialized financial software solutions, the software development companies offer the following:

Artkai: Integrates with Plaid, Stripe, and PayPal for seamless financial transactions and data syncing.
Devico: Builds API-first fintech products with open banking integrations and third-party payment systems.
SDK.finance: Offers a comprehensive API suite for payment processing, customer management, and transaction tracking.
ELEKS: Custom API development for financial data aggregation, KYC checks, and regulatory reporting.
Vention: Focuses on API connectivity for payment systems, blockchain networks, and third-party fintech platforms.

User-Friendly Interface

Another vital factor in building trust and driving customer adoption of financial software is creating an intuitive and user-friendly interface that aligns with users’ needs and facilitates easy goal achievement with the digital product. The companies we explore thoughtfully approach this aspect of financial technology:

Artkai: User-centric design with a focus on simplifying complex financial data and flows and providing a comprehensive design system for consistent flexibility and scalability.
Devico: Data visualization and responsive design for financial dashboards and payment systems.
SDK.finance: Pre-designed UI templates for financial apps, allowing for rapid deployment.
ELEKS: Custom UX research and prototyping for complex fintech platforms.
Vention: User-first approach for mobile banking apps and digital wallets, enhancing user engagement.

Questions to check if the software development company matches your business goals

When choosing a reliable and trustworthy fintech development partner, it is crucial to ensure that the software company is the perfect fit for your specific business goals or the issues that may arise during the digital transformation process. Here’s the list of questions that may help a business understand the fintech development providers’ experience, domain and technical expertise, and general approach to fintech projects to make the right choice of a vendor.

Questions revealing industry expertise, development methodology, and project approach

This set of questions helps you choose a development company whose expertise and practices perfectly align with your company’s specific goals.

Has your software development company worked within our niche of the financial industry? This will give you an understanding of how deeply the service providers are familiar with your specific fintech niche, how aware they are of the actual fintech trends, and what expertise they have in building solutions similar to the one you aim at.
What development methodology do you use? This question enables stakeholders to understand what the fintech software development flow entails, how reporting and communication are established, and what approach the team adheres to.
How is compliance with financial regulations (PCI-DSS, GDPR, PSD2, etc.) ensured? How do you deal with sensitive financial data protection? These questions cover the critical aspects of data security, limitations, and regulations, allowing you to clarify the methods and tools used to address them in financial apps and software. As well, you will find out if the company has real experience of working under compliance pressure.
What is your process for building this type of solution and meeting our business objectives? An experienced agency has clear, documented, and detailed processes, with specific people in charge responsible for each part of the development process, overseeing everything, and reporting to stakeholders. The way they answer this question will inform you on how they manage risks and whether they are proactive or reactive. Learn more about the communication tools they use and the meetings they hold with clients during the development process.
Do you have relevant case studies? This will help you determine if the vendor can back up their expertise with successful case studies and what types of fintech products they have developed.
What technology do you use? This is especially important if you need a specific tech stack to build or modernize your fintech solution. In this case, it’s better to find out upfront if the team is capable of working effectively with the required stack and how they approach software engineering.
Have the fintech solutions you have built undergone penetration testing and security audits? This allows you to learn about the vendor’s experience in passing security reviews by third-party auditors or regulators, which is a highly valuable part of fintech software development expertise.

Questions clarifying team composition and approach to communication

What kind of team should we expect, and what are the roles of the team members? This question will help you gain an understanding of the types of specialists involved at different stages and the distribution of their responsibilities.
How will communication be arranged, and how will progress be tracked during the project? That'll enable you to determine what kind of communication tools are used and how convenient they are for your goals, and also, you’ll discuss the reporting practices and frequency of communication.
How are changes in the project scope approached? This question helps you determine if the fintech development team is flexible and has a well-documented process that enables them to handle evolving requirements while building the digital product, ensuring stakeholders are protected from delays or unexpected cost surprises.

Questions about estimates and costs

What is your pricing model? Ask the team to describe how they work and estimate the projects; you can even ask them to provide you with a quote.
What is the contract structure? It should include the KPIs or goals they will commit to, a list of services, the contract length, ownership details, and procedures for handling confidential information, among other relevant information.

Where to look for a reliable financial software developer

Among the various ways and platforms for finding a reliable partner for a fintech project for modernizing legacy products or building a new application, we recommend three well-tested options.

Clutch: Clutch is a platform that has consistently maintained its position as the go-to resource for finding top-rated providers of various digitalization and IT services. The core advantage lies in publishing verified, unbiased client reviews. You can filter top fintech software companies by services, industry expertise, and average fees to find the perfect fit for your particular business context and objectives.
Goodfirms: This alternative to Clutch also features verified client reviews and in-depth company profiles. Fintech development agencies can be searched by service, location, and industry focus. Additionally, GoodFirms offers research-based rankings, enabling users to identify top-performing companies in specific niches easily.
Recommendations from LinkedIn network or other businesses: One of the most reliable ways to find a trustworthy fintech development partner is by good old asking for referrals from colleagues or other companies in your industry. What makes personal recommendations especially valuable is that they often come with firsthand insights into the company’s strengths, communication style, and project outcomes, which helps you make a more informed decision. It is also a good idea to search for development agencies on LinkedIn and review the pages of the C-level executives of the development companies.

Bottom Line

In this article, we did our best to provide you with a view of the top 5 fintech development agencies that stand out in 2025 and guide your business into some of the key aspects and criteria essential to consider when selecting the best fintech software development company to building a perfect fintech product for your specific business success.

Are you ready to discuss your fintech project more deeply? Get in touch with the Artkai team and let’s explore how to build an effective and successful path for your finance software to drive business growth and customer satisfaction.