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 develops software for banks, fintech companies, brokers, wealth management businesses, and other regulated financial organizations. Its work covers custom fintech systems, mobile banking, digital wallets, trading platforms, lending software, financial analytics, integrations, legacy modernization, and AI-enabled products. The company reports more than 300 fintech projects across 23 countries and serves financial organizations throughout North America. For Massachusetts businesses, delivery is handled through its broader North American 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 has its headquarters in Newton and a dedicated fintech development practice. Its teams build and modernize accounting systems, financial applications, insurance software, portfolio management platforms, investment solutions, trading and exchange products, and payment processing integrations. Projects can cover new product engineering, feature development, third-party integrations, UX/UI, quality assurance, and modernization of older financial applications. Its Massachusetts headquarters makes it particularly practical for businesses that want access to a local company while retaining broader engineering capacity.
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
Boston-headquartered SumatoSoft provides custom financial software development for companies that need purpose-built applications rather than packaged platforms. Its fintech work incorporates web and mobile development, financial data processing, system integrations, cloud infrastructure, and AI capabilities. The company also incorporates security and compliance requirements into financial architectures, including controls aligned with PCI DSS and SOC 2. This combination suits fintech teams building new products as well as established businesses replacing fragmented 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 combines software engineering, data, cloud, and AI capabilities for fintech organizations. Its financial work spans payments, lending, investment management, insurance, blockchain, and RegTech. Engineering services include web and mobile applications, APIs, data platforms, cloud migration, machine learning, and managed development teams. Proxet has also delivered payment infrastructure using microservices, tokenization, APIs, and PCI DSS-oriented controls. Its US office is in Auburndale, giving Massachusetts companies a local point of contact for financial product and platform work.
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 provides software engineering for banks, fintech companies, insurers, lenders, and wealth management businesses. Its financial services work covers banking platforms, payment systems, P2P lending and mortgage technology, wealth management solutions, InsurTech, and newer fintech products. Development capabilities include web and mobile applications, APIs, cloud engineering, data platforms, AI, and application modernization. The company has a Boston presence, making it a stronger geographic fit for a Massachusetts-focused selection.
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 operates a Cambridge office and has more than 20 years of stated experience in financial services software. Its banking and finance capabilities cover core banking migration, open APIs, real-time payments, digital banking interfaces, investor platforms, KYC automation, risk and fraud systems, and compliance-focused AI. The company also develops custom applications and AI-powered enterprise software, giving financial organizations options for both conventional platform engineering and newer AI projects. Its Massachusetts operation includes leadership and engineering personnel in 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 provides financial IT services alongside custom application and product engineering. Its finance offering includes custom applications, mobile banking, cloud modernization, banking integrations, legacy migration, financial data solutions, and workflow automation. Published financial work includes SaaS platforms used by banks and asset managers as well as technology for investment firms. Trigent is a useful option for organizations that need a Massachusetts-based engineering company capable of handling both fintech application development and the surrounding cloud, data, quality engineering, and modernization work.
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 provides fintech product strategy, design, and software engineering for banks, financial institutions, and fintech-enabled businesses. Its finance practice covers payments, banking, lending, embedded finance, wealth technology, insurance technology, and regulatory systems. Development work includes custom web and mobile products, payment integrations, digital banking platforms, analytics, and AI features. The company has worked on financial products for businesses such as MoneyLion and Credit Karma and maintains a dedicated Boston service presence.
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 operates a Massachusetts office in North Reading and provides product engineering specifically for banking and financial technology. Services cover fintech web and mobile applications, cloud migration, API ecosystems, RegTech, compliance engineering, quality engineering, and modernization of legacy financial platforms. Its work for Fiserv included application redesign and development for a financial technology platform analyzing credit card spending data. Galaxy Weblinks can therefore cover both user-facing fintech products and the technical infrastructure, integrations, testing, and compliance work behind them.
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 has a dedicated fintech software development offering for Boston and Massachusetts. The company builds payment platforms, digital wallets, lending applications, embedded finance products, financial APIs, and mobile banking experiences. Its capabilities also extend to peer-to-peer transfers, account funding, transaction management, and integration of financial services into non-banking products. With an office in Newton, it is one of the more locally focused options for Massachusetts startups and established businesses developing a custom fintech product without engaging 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 concentrates much of its technology work on investment management and financial services. The company works with fintech vendors on product development and feature enhancement, while financial enterprises use its teams for systems integration, performance improvements, and new capabilities. Its narrower financial focus makes it particularly applicable to investment management software vendors, wealth management organizations, and firms integrating established financial systems rather than businesses seeking a general-purpose 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 develops custom financial software from its US base in Marlborough while operating with a distributed international team. Its finance capabilities include custom applications, accounting and payment platform integrations, workflow automation, and software designed around financial security and compliance requirements such as SOX, FASB, and PCI DSS. Its software portfolio also includes a stock trading application. Scopic may suit fintech startups and established financial businesses that want one provider for product consulting, development, AI functionality, UX, testing, and post-launch support.
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 application development company with specific experience in digital wallet software. Its wallet development services cover mobile money transfers, account funding, transaction histories, and other payment-oriented functionality, while the broader team handles native and cross-platform mobile engineering, AI, machine learning, blockchain, and backend integrations. The company`s mobile-first orientation makes it applicable to fintech businesses building consumer-facing 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
Southborough-based AndPlus develops custom web, mobile, and software products and has direct experience with financial technology projects. Its work includes Bloomberg Vault, a web-based financial data management interface, as well as application development for accounting software startup Crunched. The company works across product strategy, UX, application engineering, APIs, cloud technologies, AI, machine learning, and data-intensive systems. While its industry scope is broader than fintech alone, its Massachusetts engineering operation and documented financial software work make it applicable to finance teams needing custom product development.
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 develops software and technology platforms for banks, insurers, capital markets firms, and other financial organizations. Its financial services work includes core banking modernization, payment systems, real-time trading platforms, regulatory technology, fraud detection, credit scoring, and fintech integrations. The company also handles modern application development, cloud architecture, data platforms, AI, and cybersecurity. Its work with Fidelity Investments included modernizing a trading platform through application development, architecture changes, UX/UI work, and performance engineering. MILL5 is headquartered in Boston, giving it 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.