Banks and credit unions now compete on the quality of their apps as much as on their rates, but building banking software is slow and tightly regulated. A partner who has already shipped a mobile bank, a lending flow or a payments platform can save months of trial and error. This guide reviews 6 banking software companies in USA, explaining what each firm offers and one banking project it has delivered, so you can judge their experience by results rather than by claims.
Note: Each company on this list has at least one published banking or payments case study. Company details and project results come from official company websites and were last checked on October 28, 2026.
1. ScienceSoft
ScienceSoft is an IT consulting and software development company headquartered in McKinney, Texas. It was founded in 1989 and has worked in financial IT since 2005. The team has more than 750 specialists, and in 2024 the company received the Banking Tech Award from FinTech Futures for web and mobile banking software development. This mix of long experience and a dedicated banking practice makes ScienceSoft a common shortlist choice for mid-sized banks.
Banking software development services: ScienceSoft builds internet banking and mobile banking apps, core banking systems, banking CRM and loyalty programs. It also offers banking data analytics, IT consulting and cybersecurity services, including penetration testing for banking web apps.
Notable banking case study – Mobile banking evolution for Kapital Bank: Kapital Bank is Azerbaijan’s oldest commercial bank, with more than $3.5 billion in assets. ScienceSoft first built its iOS and Android banking apps in 2016. Years later, the bank asked for help again because app updates were slowing down.
ScienceSoft audited the development process and placed a project manager to coordinate the in-house team. It also recommended moving the apps from Java to Kotlin and from Objective-C to Swift. The bank then added five iOS developers, three Android developers and a QA engineer from ScienceSoft, while a separate team completed a four-week audit of its IT infrastructure.
Website: https://www.scnsoft.com/
ScienceSoft is an IT consulting and software development company in McKinney
2. DataArt
Founded in 1997 and headquartered in New York, DataArt is a software engineering firm with a large finance practice. Its work covers banking, capital markets, insurance, wealth management and payments. DataArt tends to take on architecture-heavy projects, where the main risk lies in security, scale and integration rather than in the user interface.
Banking software development services: In banking and lending, DataArt focuses on core platform modernization, digital lending, customer onboarding and KYC, payments and reporting data platforms. It also provides cloud migration, legacy modernization, and data engineering for regulated institutions.
Notable banking case study – Digital banking platform for US community banks: A US fintech wanted to build an end-to-end digital banking platform for community and regional financial institutions. DataArt joined from the start and led the architecture and technology choices. It also ran the full DevOps and development lifecycle. The platform runs on AWS, encrypts personal data in transit and at rest, and replicates data across AWS regions for disaster recovery. As a result, banks using it can handle onboarding, KYC and KYB checks, and loan origination for consumer, small business and commercial customers in one system.
Website: https://www.dataart.com/
3. Thoughtworks
Founded in Chicago in 1993, Thoughtworks is a technology consultancy known for its engineering practices, such as continuous delivery and agile delivery. It has worked with banks on several continents, from Standard Bank in South Africa to digital banks in Latin America. Thoughtworks often joins projects at an early stage, when a bank needs to set up both its platform and its ways of working.
Banking software development services: Thoughtworks builds digital banking channels, including mobile apps and internet banking websites. It also helps banks move legacy platforms to the cloud, integrate core banking and payment providers through APIs, and run their cloud platforms through managed services.
Notable banking case study – Building a digital bank from scratch in Brazil: A branchless digital bank founded in 2018 asked Thoughtworks to help it launch with no existing code or processes. The team built a native mobile app and a microservices platform, and integrated core services from providers such as Conductor, Matera and FitBank. All customer interfaces were ready within five months, and the first customer account opened seven months into the partnership. By the end of the project, the bank had opened 1.6 million accounts and issued 250,000 credit cards. It reached its first monthly profit in November 2023.
Website: https://www.thoughtworks.com/
4. Praxent
Based in Austin, Texas, Praxent has spent more than 25 years working only with financial services companies. Its team of around 200 specialists covers banking, lending, payments, capital markets and insurance. The company is SOC 2 certified, and its banking work ranges from UX research for credit unions to engineering support for core banking providers.
Banking software development services: Praxent designs and builds retail and SMB digital banking experiences, including account opening, mobile banking and lending flows. It also handles systems integration with banking cores and fintech providers, data strategy, cloud solutions and QA.
Notable banking case study – Embedded business banking for Players Health and Thread Bank: Youth sports leagues in the US run on seasonal cash and shared accounts, yet few banks serve them well. Players Health and Thread Bank asked Praxent to build a digital bank for these organizations. Praxent delivered account opening, team sub-accounts, virtual and physical cards, and seasonal lending with buy now, pay later. The platform connects five fintech providers, including Plaid and Synctera, on a compliance-approved ledger. It launched five months after kickoff and onboarded $600,000 in annual recurring revenue in its first week.
Website: https://praxent.ai/
5. EPAM Systems
EPAM Systems is a NYSE-listed digital engineering company founded in 1993 and headquartered in Newtown, Pennsylvania. It works with some of the largest banks in North America and Europe. In 2023, analyst firm ISG named EPAM a leader in digital banking services in Germany and Switzerland, assessing areas such as core modernization and digital banking implementation.
Banking software development services: EPAM supports digital banking transformation, core banking modernization, payments and cards, open banking, and RegTech and compliance solutions. Its size suits large programs that involve several systems and many teams at once.
Notable banking case study – Real-time payments hub for 37 banks: In a retail digital payments hub project, EPAM moved 37 banks away from legacy batch processing for card transactions. The banks now run on a real-time platform. This change gives them access to accurate, up-to-date card data instead of waiting for overnight batch files. Projects of this kind show EPAM’s strength in migrations where many institutions must switch systems without disrupting customers.
Website: https://www.epam.com/
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6. Itransition
Itransition is a software engineering company founded in 1998, with its headquarters in Lakewood, Colorado. It has more than 3,000 professionals and over 25 years of experience. In 2021, Everest Group included Itransition in its PEAK Matrix assessment for application and digital services in banking, based on its work with European banks and fintech platforms.
Banking software development services: Itransition builds software for retail, commercial and investment banks, as well as credit unions. Its services include online and mobile banking apps, account and card management, investment management solutions and banking BI. The company also modernizes older banking software to meet current customer expectations.
Notable banking case study – Internet banking portal for Rietumu Banka: Rietumu Banka, a European bank with thousands of international clients, saw its internet banking portal losing users because of functional and UI issues. Itransition’s business analysts first reviewed the old portal and studied the needs of different customer groups. The team then built a new portal on a modular architecture. This design lets the bank’s own developers add or replace features without affecting the rest of the system. Itransition continues to support the portal and advises the bank on design and feature updates.
Website: https://www.itransition.com/
How to compare banking software partners
A list is only a starting point, so it helps to test each vendor against the same questions. The following checks tend to reveal real banking experience quickly:
- Relevant case studies: Ask for projects close to yours, such as mobile banking, lending or core integration, and ask to speak with a reference client.
- Compliance and security: Check certifications such as ISO 27001, SOC 2 or PCI DSS, and ask how the team handles audits.
- Core and fintech integrations: Confirm which banking cores and providers the team has connected before, since integration often takes more time than front-end work.
- Team model: Clarify whether you need a full project team, a few specialists, or ongoing support after launch.
The banking software companies in USA on this list differ in size and focus, from EPAM’s large migration programs to Praxent’s SMB banking work and PowerGate’s payments and dedicated team experience. What they share is a published track record of real banking projects. Use these case studies to narrow your shortlist, then ask each vendor to walk you through a project that matches your own scope before you sign.
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