Massachusetts has a substantial pool of software engineering companies working with banks, fintech startups, investment firms, payment providers, and other financial organizations. The companies below cover projects ranging from digital banking and payment platforms to wealth management systems, financial data products, lending applications, and AI-based finance tools. The selection includes Massachusetts-based teams as well as providers with clear service coverage for organizations in the state.
1. Itexus
Itexus builds software for banks, fintech companies, brokers, wealth managers, and other regulated financial organizations. It develops custom fintech systems, mobile banking apps, digital wallets, trading platforms, and lending software. It also handles financial analytics, integrations, legacy modernization, and AI-enabled products. The company reports more than 300 fintech projects across 23 countries. It serves financial organizations throughout North America, and Massachusetts clients are handled through that operation.
Key Facts
- Best for: Complex fintech products and regulated financial platforms
- Core services: Fintech software development, mobile banking, digital wallets, trading software, lending software, fintech consulting
- Specialization: Integration-heavy and enterprise financial systems
- Industries: Banking, wealth management, lending, insurance, trading
- Massachusetts coverage: Serves clients throughout North America
Contact Information
- Website: itexus.com
- Email: moc.suxeti@ofni
- Address: 8, The Green, STE road, Dover, DE 19901, United States
- LinkedIn: www.linkedin.com/company/itexus
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- Instagram: www.instagram.com/itexus.soft
2. Kanda Software
Kanda Software is headquartered in Newton, Massachusetts, and runs a dedicated fintech development practice. Its teams build and modernize accounting systems, insurance software, portfolio management platforms, investment tools, and trading and exchange products. They also integrate payment processing. A project can include new product engineering, new features, third-party integrations, UX/UI, quality assurance, or an update of an older financial application. Massachusetts businesses get a local company that still has a large engineering team behind it.
Key Facts
- Best for: Custom financial platforms and modernization projects
- Core services: Fintech software development, web and mobile development, payment integration, modernization
- Specialization: Financial applications that require scalability, security, and integrations
- Fintech areas: Accounting, investment management, trading, insurance, payments
- Location: Newton, Massachusetts
Contact Information
- Website: www.kandasoft.com
- Email: moc.tfosadnak@tcatnoc
- Phone: +1 617 340 3850
- Address: 233 Needham Street, Newton, MA 02464
- LinkedIn: www.linkedin.com/company/kanda-software
- Twitter: x.com/kandasoftware
3. SumatoSoft
SumatoSoft, based in Boston, builds custom financial software for companies that need their own application rather than a packaged platform. Its fintech teams cover web and mobile development, financial data processing, system integrations, cloud infrastructure, and AI. Security and compliance are part of the architecture from the start, including controls aligned with PCI DSS and SOC 2. It fits fintech teams launching new products and established businesses replacing scattered or aging software.
Key Facts
- Best for: Custom fintech platforms and financial product development
- Core services: Custom software, AI development, enterprise software, modernization, fintech development
- Specialization: Secure financial systems with compliance considerations
- Project types: New products, integrations, modernization, enterprise applications
- Location: Boston, Massachusetts
Contact Information
- Website: sumatosoft.com
- Email: moc.tfosotamus@ofni
- Phone: +1 857 239 0848
- Address: One Boston Place, Suite 2602, Boston, MA 02108
- LinkedIn: www.linkedin.com/company/sumatosoft
- Facebook: www.facebook.com/sumatosoft
- Instagram: www.instagram.com/sumatosoft
- Twitter: x.com/SumatoSoft
4. Proxet
Proxet brings software engineering, data, cloud, and AI skills to fintech organizations. It works on payments, lending, investment management, insurance, blockchain, and RegTech. Its teams build web and mobile apps, APIs, and data platforms, and handle cloud migration, machine learning, and managed development teams. Proxet has built payment infrastructure with microservices, tokenization, APIs, and PCI DSS-oriented controls. Its US office is in Auburndale, so Massachusetts companies have a local contact.
Key Facts
- Best for: Fintech applications combining software and data engineering
- Core services: Software development, data engineering, AI, cloud, DevOps, managed teams
- Fintech areas: Payments, lending, investment management, insurance, RegTech
- Project types: Platforms, APIs, mobile apps, modernization, payment infrastructure
- Location: Auburndale, Massachusetts
Contact Information
- Website: www.proxet.com
- Email: moc.texorp@ofni
- Address: 66 Rowe St, Auburndale, MA 02466
- LinkedIn: www.linkedin.com/company/proxet
- Facebook: www.facebook.com/proxet.nation
- Twitter: x.com/proxet
5. Simform
Simform builds software for banks, fintech companies, insurers, lenders, and wealth managers. It works on banking platforms, payment systems, P2P lending and mortgage technology, wealth management tools, InsurTech, and newer fintech products. Its engineers build web and mobile apps, APIs, cloud systems, and data platforms, and also cover AI and application modernization. The company has a presence in Boston, which makes it a good geographic fit for Massachusetts buyers.
Key Facts
- Best for: Fintech platforms that combine application, cloud, and data engineering
- Core services: Fintech development, application development, cloud engineering, data engineering, AI/ML
- Fintech areas: Banking, payments, lending, wealth management, InsurTech
- Project types: Banking platforms, payment systems, lending applications, financial APIs, modernization
Contact Information
- Website: www.simform.com
- Address: 111 North Orange Avenue, Suite 800, Orlando, Florida 32801, United States
- LinkedIn: www.linkedin.com/company/simform
- Facebook: www.facebook.com/simform
- Twitter: x.com/simform
6. First Line Software
First Line Software has an office in Cambridge and says it has more than 20 years of experience in financial services software. In banking, it handles core banking migration, open APIs, real-time payments, and digital banking interfaces. It also builds investor platforms, KYC automation, risk and fraud systems, and compliance-focused AI. Beyond finance, it develops custom applications and AI-powered enterprise software, so clients can use it for classic platform work or newer AI projects. Its leaders and engineers in Massachusetts work from Cambridge and Boston.
Key Facts
- Best for: Banking modernization and AI-enabled financial applications
- Core services: Custom software, AI engineering, cloud, integrations, digital transformation
- Fintech areas: Banking, payments, AML, fraud, risk, investor platforms
- Technologies and capabilities: Open APIs, real-time payments, AI, cloud platforms
- Location: Cambridge, Massachusetts
Contact Information
- Website: firstlinesoftware.com
- Email: moc.erawtfoseniltsrif@olleh
- Address: 1 Broadway, 14th Floor, Cambridge, MA 02142
- Phone: +1-877-737-7178
- LinkedIn: www.linkedin.com/company/first-line-software-inc
7. Trigent Software
Trigent Software is headquartered in Southborough and offers financial IT services alongside custom application and product engineering. For finance clients, it builds custom applications and mobile banking apps, connects banking systems, and moves legacy software to the cloud. It also works on financial data and workflow automation. Its published work includes SaaS platforms used by banks and asset managers, plus technology for investment firms. Trigent suits organizations that want one Massachusetts company for the fintech app and the cloud, data, testing, and modernization work around it.
Key Facts
- Best for: Financial application modernization and enterprise IT projects
- Core services: Application development, product engineering, data engineering, AI, cybersecurity, QA
- Fintech areas: Banking, asset management, financial operations, investment technology
- Project types: SaaS, mobile banking, integrations, modernization, workflow automation
- Location: Southborough, Massachusetts
Contact Information
- Website: trigent.com
- Email: moc.tnegirt@ofni
- Phone: +1 508 490 6000
- Address: 2 Willow Street, Suite 201, Southborough, MA 01745
- LinkedIn: www.linkedin.com/company/trigent-software
- Facebook: www.facebook.com/TrigentSoftware
- Twitter: x.com/TrigentSoftware
8. MojoTech
MojoTech offers fintech product strategy, design, and engineering to banks, financial institutions, and businesses that add financial features. It works on payments, banking, lending, embedded finance, wealth technology, insurance technology, and regulatory systems. Its teams build custom web and mobile products, payment integrations, digital banking platforms, analytics, and AI features. MojoTech has worked on financial products for MoneyLion and Credit Karma and runs a dedicated Boston service.
Key Facts
- Best for: Consumer-facing fintech products and digital banking experiences
- Core services: Product strategy, UX/UI, web development, mobile development, fintech consulting
- Fintech areas: Banking, payments, lending, embedded finance, wealthtech
- Project types: Digital banking, integrations, mobile finance products, platform modernization
- Massachusetts coverage: Dedicated Boston software development services
Contact Information
- Website: www.mojotech.com
- Address: 56 Exchange Terrace, Suite 210 Providence, RI 02903
- LinkedIn: www.linkedin.com/company/mojotech
- Twitter: x.com/mojotech
9. Galaxy Weblinks
Galaxy Weblinks has a Massachusetts office in North Reading and does product engineering for banking and financial technology. It builds fintech web and mobile apps, API ecosystems, and RegTech, and handles cloud migration, compliance, testing, and modernization of legacy financial platforms. For Fiserv, it redesigned and developed an application that analyzes credit card spending data. Galaxy Weblinks can take on both the product users see and the infrastructure, integrations, testing, and compliance behind it.
Key Facts
- Best for: Banking product engineering and financial platform modernization
- Core services: Product engineering, mobile apps, web apps, cloud migration, API development, QA
- Fintech areas: Banking, payments, compliance, financial data
- Project types: Regulated platforms, APIs, mobile banking, modernization
- Location: North Reading, Massachusetts
Contact Information
- Website: www.galaxyweblinks.com
- Address: 25 Main St, Suite B, North Reading, MA 01864
- LinkedIn: www.linkedin.com/company/galaxy-weblinks-ltd
- Facebook: www.facebook.com/GalaxyWebLinks
- Instagram: www.instagram.com/galaxyweblinks
10. Outright Development
Outright Development runs a dedicated fintech development service for Boston and Massachusetts. It builds payment platforms, digital wallets, lending apps, embedded finance products, financial APIs, and mobile banking apps. Its teams also handle peer-to-peer transfers, account funding, and transaction management, and add financial services to non-banking products. With an office in Newton, it is one of the more local options for Massachusetts startups and established businesses that do not want a very large global consultancy.
Key Facts
- Best for: Massachusetts fintech startups and custom financial applications
- Core services: Custom software, fintech development, APIs, mobile development
- Fintech areas: Payments, wallets, lending, embedded finance, mobile banking
- Project types: New fintech products, integrations, financial APIs
- Location: Newton, Massachusetts
Contact Information
- Website: www.outrightdevelopment.com
- Email: moc.tnempolevedthgirtuo@ofni
- Phone: +1 781 670 7745
- Address: 275 Grove Street, Suite 2-400, Newton, MA 02466
11. Sarovar
Sarovar focuses much of its technology work on investment management and financial services. Fintech vendors hire it to build products and add features. Financial enterprises use its teams for systems integration, performance improvements, and new capabilities. It is a good match for investment management software vendors, wealth managers, and firms connecting established financial systems. It is a poor match for anyone looking for a general consumer app studio.
Key Facts
- Best for: Investment management technology and fintech vendor development
- Core services: Product development, systems integration, software enhancement, technology implementation
- Specialization: Investment management software
- Client types: Fintech vendors, wealth managers, institutional investment firms
- Location: Marlborough, Massachusetts
Contact Information
- Website: sarovar-inc.com
- Email: moc.cni-ravoras@tcatnoc
- Phone: 617-221-7792
- Address: 11 Apex Drive, Suite 300A, Marlborough, MA 01752
12. Scopic
Scopic builds custom financial software from its US base in Marlborough, with a distributed international team. It develops custom applications, integrates accounting and payment platforms, and automates workflows. Its software is built to meet security and compliance rules such as SOX, FASB, and PCI DSS. Its past work includes a stock trading app. Scopic suits fintech startups and established financial businesses that want one provider for consulting, development, AI features, UX, testing, and support after launch.
Key Facts
- Best for: Custom financial applications and fintech MVPs
- Core services: Custom software, AI development, product consulting, SaaS development, QA
- Fintech areas: Financial applications, trading, payments, accounting integrations
- Project types: MVPs, SaaS products, custom platforms, integrations
- Location: Marlborough, Massachusetts
Contact Information
- Website: scopicsoftware.com
- Email: moc.erawtfoscipocs@selas
- Phone: +1 508 886 3240
- Address: 11 Apex Dr, Ste 300A PMB 2021, Marlborough, MA 01752
- LinkedIn: www.linkedin.com/company/scopic-software
- Facebook: www.facebook.com/scopicsoftware
- Instagram: www.instagram.com/scopic_software
13. AppsChopper
AppsChopper is a Massachusetts mobile app developer with specific experience in digital wallet software. Its wallet work covers mobile money transfers, account funding, transaction histories, and other payment features. The wider team handles native and cross-platform mobile apps, AI, machine learning, blockchain, and backend integrations. Because it works mobile-first, it fits fintech businesses building consumer wallet or finance apps.
Key Facts
- Best for: Digital wallets and mobile-first fintech products
- Core services: Mobile app development, AI, blockchain, backend integration
- Fintech areas: Digital wallets, mobile payments, financial mobile applications
- Project types: iOS, Android, cross-platform, wallet applications
- Location: Walpole, Massachusetts
Contact Information
- Website: www.appschopper.com
- Email: moc.reppohcsppa@troppustneilc
- Phone: 833-602-4472
- Address: 1600 Boston-Providence Highway, Suite 288, Walpole, MA 02081
- LinkedIn: www.linkedin.com/company/appschopper
- Facebook: www.facebook.com/appschopper
- Instagram: www.instagram.com/apps_chopper
- Twitter: x.com/appschopper
14. AndPlus
AndPlus, based in Southborough, builds custom web, mobile, and software products and has worked on fintech projects. It built Bloomberg Vault, a web interface for managing financial data, and developed an app for the accounting software startup Crunched. Its teams cover product strategy, UX, application engineering, APIs, cloud, AI, machine learning, and data-heavy systems. Its industry reach goes beyond fintech, but its Massachusetts engineers and track record in financial software make it a fit for finance teams that need a custom product.
Key Facts
- Best for: Custom financial dashboards and data-heavy applications
- Core services: Web development, mobile development, product engineering, AI, UX
- Financial experience: Financial data tools and accounting software
- Project types: Web applications, mobile products, custom enterprise software
- Location: Southborough, Massachusetts
Contact Information
- Website: www.andplus.com
- Phone: 508-425-7533
- Address: 257 Turnpike Road, Southborough, MA
- LinkedIn: www.linkedin.com/company/andplus-llc
- Facebook: www.facebook.com/AndPlus
- Twitter: x.com/andplus
15. MILL5
MILL5 builds software and technology platforms for banks, insurers, capital markets firms, and other financial organizations. Its finance work includes core banking modernization, payment systems, real-time trading platforms, regulatory technology, fraud detection, and credit scoring. It also does fintech integrations, cloud architecture, data platforms, AI, and cybersecurity. For Fidelity Investments, it modernized a trading platform, covering application development, architecture changes, UX/UI, and performance engineering. MILL5 is headquartered in Boston, so it has a direct Massachusetts connection.
Key Facts
- Best for: Banking, trading, and financial platform modernization
- Core services: Custom software development, modern application development, cloud engineering, data and AI, cybersecurity
- Fintech areas: Banking, payments, capital markets, trading, RegTech, financial data
- Project types: Trading platforms, banking systems, payment modernization, fintech integrations, financial data platforms
- Location: Boston, Massachusetts
Contact Information
- Website: mill5.com
- Email: moc.5llim@ofni
- Phone: (888) 901-9691
- Address: 33 Broad Street, Suite 320, Boston, MA 02109
- LinkedIn: www.linkedin.com/company/mill5
- Facebook: www.facebook.com/atmill5
- Instagram: www.instagram.com/atmill5
- Twitter: x.com/atmill5
Conclusion
Massachusetts offers fintech companies access to software development partners with experience across banking, payments, lending, investment platforms, financial data, AI, and regulatory technology. The strongest fit depends on the product being built, the level of financial-sector expertise required, and whether the project involves a new platform, modernization work, or complex integrations. Comparing each company's fintech focus, technical capabilities, Massachusetts presence, and project experience can help narrow the options to a partner that matches both the business and engineering requirements.