Washington, DC fintech businesses can work with local development firms or US-focused engineering partners that support regulated financial products remotely. This list compares companies across banking software, payments, lending, investment technology, data engineering, cloud modernization, and product design.
1. Itexus
Itexus builds custom software for fintech companies and established financial institutions. It develops digital banking platforms, trading and investment apps, lending systems, payment products, wealth management tools, and financial analytics. The company can run the whole product cycle: discovery, architecture, UI/UX design, development, testing, deployment, and support. Itexus also builds AI features for fraud detection, document processing, predictive analytics, customer support, and internal workflow automation. That background suits Washington, DC organizations that need a partner who knows financial data, integrations, security requirements, and regulated operations.
Key Facts
- Best for: Custom fintech products and financial platform modernization
- Core services: Fintech software development, custom development, UI/UX design, cloud engineering, QA, cybersecurity
- Specialization: Banking, lending, payments, wealth management, trading, and financial analytics
- Delivery model: Full-cycle development and dedicated fintech teams
- Notable strength: Broad financial domain coverage combined with AI engineering
Contact Information
- Website: itexus.com
- E-mail: moc.suxeti@ofni
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- LinkedIn: www.linkedin.com/company/itexus
- Instagram: www.instagram.com/itexus.soft
- Address: 8, The Green, STE road, Dover, DE 19901, United States
2. Simpalm
Simpalm builds mobile apps, web applications, cloud backends, and SaaS products for startups and established organizations. In fintech, it delivers banking apps, payment solutions, financial management tools, digital wallets, and customer finance platforms. Offices in Rockville and Tysons give it a direct presence in the Washington metro area. Its teams cover product strategy, interface design, app engineering, backend development, testing, and post-launch maintenance. Simpalm fits teams that want one provider for both the app and the cloud infrastructure behind it.
Key Facts
- Best for: Mobile-first fintech products in the DC metro area
- Core services: Mobile development, web development, UI/UX design, cloud backend development
- Specialization: Payments, banking applications, financial apps, and SaaS platforms
- Location: Rockville, Maryland, and Tysons, Virginia
- Notable strength: Local access combined with end-to-end product delivery
Contact Information
- Website: www.simpalm.com
- E-mail: moc.mlapmis@tcatnoc
- Facebook: www.facebook.com/Simpalm
- LinkedIn: www.linkedin.com/company/simpalm
- Address: 11821 Parklawn Drive, Suite 130 Rockville, MD 20852
- Phone: 301-541-3076
3. Orases
Orases is based in Frederick, Maryland, and serves clients across the Washington, DC region. It builds web and mobile apps, payment software, money-transfer platforms, financial planning systems, risk management tools, and portfolio management technology. It also writes APIs that connect financial products with core systems and outside providers. For more complex setups, it offers data engineering, predictive analytics, fraud detection, AI development, and legacy modernization. Orases fits institutions that need custom workflows rather than a lightly configured off-the-shelf product.
Key Facts
- Best for: Complex custom financial platforms and modernization projects
- Core services: Custom software, web and mobile apps, APIs, AI, data engineering, QA
- Specialization: Payments, risk management, financial planning, and portfolio software
- Location: Frederick, Maryland, serving Washington, DC
- Notable strength: Development of software around organization-specific financial processes
Contact Information
- Website: orases.com
- Facebook: www.facebook.com/Orases
- Twitter: x.com/orases
- LinkedIn: www.linkedin.com/company/orases
- Instagram: www.instagram.com/orases
- Address: 700 12th Street, NW | Suite 700 | Washington, DC 20005
- Phone: 202.600.9620
4. 10Pearls
10Pearls is an AI-focused digital engineering company headquartered in Northern Virginia. Being close to Washington, DC and experienced in regulated industries, it works well for banks, credit unions, insurers, and fintech firms in the region. Its teams cover product strategy, experience design, software engineering, data, cloud transformation, cybersecurity, and AI. Financial clients use them for digital banking, payment systems, risk tools, customer portals, and modernization programs. 10Pearls suits larger initiatives that need many engineering disciplines and support across the product lifecycle.
Key Facts
- Best for: Enterprise financial services transformation
- Core services: Product development, AI, cloud engineering, cybersecurity, data, and experience design
- Specialization: Banking, financial services, insurance, and regulated digital products
- Location: Northern Virginia
- Notable strength: Combining application engineering with AI and cybersecurity capabilities
Contact Information
- Website: 10pearls.com
- E-mail: moc.slraep01@ofni
- Facebook: www.facebook.com/10Pearls
- Twitter: x.com/TenPearls
- LinkedIn: www.linkedin.com/company/10pearls
- Address: 8614 Westwood Center Dr, Ste 540, Vienna, VA 22182
- Phone: +1 (703) 935-1919
5. Technorely
Technorely is a custom software and IT consulting company with a development center in Washington, DC. It lists fintech among its industries and helps organizations build and modernize technology products. Its services include web and mobile development, system re-engineering, DevOps, quality assurance, UX/UI design, and blockchain development.
For fintech firms, Technorely can build custom platforms, payment solutions, blockchain products, and other systems that must be secure and scalable. It adds technical consulting, product management, and system modernization to the engineering work. That helps fintech teams launching a new product or improving an existing platform. Its DC development center gives local businesses a partner in the capital.
Key Facts
- Best for: Custom fintech software and financial technology modernization
- Core services: Software engineering, web development, mobile development, DevOps, QA, UX/UI design, and blockchain
- Specialization: FinTech, blockchain, custom software, and system re-engineering
- Location: Washington, DC
- Notable strength: Dedicated Washington, DC development center combined with explicit fintech expertise
Contact Information
- Website: technorely.com
- E-mail: moc.yleronhcet@ofni
- Facebook: www.facebook.com/technorely
- LinkedIn: www.linkedin.com/company/technorely
- Instagram: www.instagram.com/technorely_life
- Phone: +1(778)325-2991
6. KiwiTech
KiwiTech is a Washington, DC technology company that builds digital products for startups, enterprises, and financial services firms, among other industries. It offers web and mobile development, AI, blockchain, UX design, and software engineering. Fintech companies use it to launch new products or modernize existing platforms.
KiwiTech has worked on payments, investment platforms, trading, and other digital financial services. Its finance team pairs software engineering with AI and blockchain, and its product work covers strategy, design, development, and scaling. Local fintech firms get a DC-based partner with industry experience and a broad technology stack.
Key Facts
- Best for: Digital fintech products and financial technology innovation
- Core services: Web development, mobile development, AI, blockchain, UX design, and software engineering
- Specialization: Financial services, fintech platforms, payments, investment technology, and digital products
- Location: Washington, DC
- Notable strength: Combining fintech experience with AI, blockchain, mobile, and web development
Contact Information
- Website: www.kiwitech.com
- E-mail: moc.hcetiwik@ofni
- Facebook: www.facebook.com/KiwiTech
- Twitter: x.com/KiwiTechCorp
- LinkedIn: www.linkedin.com/company/kiwitech
- Instagram: www.instagram.com/kiwitech_us
- Address: 8000 Towers Crescent Dr Suite 1324, Vienna, VA 22182
7. Code District
Code District is an AI-native software development and digital transformation company based in Washington, DC. It offers custom software, web and mobile apps, cloud engineering, AI, workflow automation, and legacy system modernization. Fintech is one of the industries it lists, so it is a local option for financial technology businesses.
For fintech clients, Code District builds custom financial apps, AI-powered workflows, data-driven solutions, and modernization projects. Its engineers handle application development, cloud infrastructure, AI, and system integration. Financial firms can use it both for new products and for improving existing technology. Its DC headquarters gives local fintech firms direct access to the team.
Key Facts
- Best for: Custom fintech software and AI-powered financial solutions
- Core services: Custom software development, web and mobile development, AI, cloud engineering, workflow automation, and system modernization
- Specialization: Fintech, SaaS, healthcare, retail, manufacturing, and enterprise software
- Location: Washington, DC
- Notable strength: Direct Washington, DC presence combined with fintech, AI, cloud, and custom software expertise
Contact Information
- Website: codedistrict.com
- E-mail: moc.tcirtsidedoc@selas
- Twitter: x.com/code_district
- LinkedIn: www.linkedin.com/company/the-code-district
- Instagram: www.instagram.com/codedistrictofficial
- Address: 1300 I St NW, Suite 400E, Washington, DC
- Phone: +1 (703) 940-1971
8. BairesDev
BairesDev supplies nearshore software development teams to companies across the United States. Financial firms use its engineers for custom platforms, mobile apps, cloud systems, data products, quality assurance, and ongoing maintenance. It takes on full outsourced projects as well as staff augmentation. Its large talent pool helps when a Washington, DC fintech needs backend, mobile, DevOps, data science, or machine learning specialists. BairesDev works best for organizations that already own their product direction and need more development capacity.
Key Facts
- Best for: Nearshore development and engineering team expansion
- Core services: Custom software, mobile apps, cloud, data science, QA, and DevOps
- Specialization: Distributed engineering teams for US businesses
- Delivery model: Staff augmentation, dedicated teams, and outsourced development
- Notable strength: Access to developers across multiple technical disciplines
Contact Information
- Website: www.bairesdev.com
- Facebook: www.facebook.com/bairesdev
- Twitter: x.com/bairesdev
- LinkedIn: www.linkedin.com/company/bairesdev
- Instagram: www.instagram.com/bairesdev
- Address: 1401 Chain Bridge Road, McLean, VA, USA
- Phone: +1 (408) 478-2739
9. Intellectsoft
Intellectsoft builds custom web, mobile, cloud, and enterprise applications for US companies. In fintech, it delivers digital banking products, mobile payment apps, blockchain systems, analytics tools, and financial operations software. It can lead a project from early technical planning through interface design, engineering, testing, and deployment. It also modernizes legacy apps and builds integration layers for firms that cannot replace core systems in one step. Intellectsoft may suit established Washington, DC businesses planning a broad digital transformation rather than a single app.
Key Facts
- Best for: Enterprise fintech applications and legacy modernization
- Core services: Custom development, mobile apps, cloud, UI/UX, QA, and consulting
- Specialization: Digital banking, payments, blockchain, and enterprise systems
- US coverage: Works with organizations across the United States
- Notable strength: Support for projects spanning mobile, web, cloud, and legacy technology
Contact Information
- Website: www.intellectsoft.net
- E-mail: ten.tfostcelletni@ofni
- Facebook: www.facebook.com/Intellectsoft
- Twitter: x.com/Intellectsoft
- LinkedIn: www.linkedin.com/company/intellectsoft
- Address: 500 Fashion Ave, Fl 8A, New York City, NY 10018, USA
- Phone: +1 (650) 233-6196
10. Viget
Viget is a product development company headquartered in Falls Church, Virginia, in the Washington, DC metro area. It builds financial apps, investment platforms, financial wellness products, data visualizations, and digital experiences for financial companies.
Viget combines product strategy, UX design, web development, and engineering to build and modernize digital products. Its fintech clients include Robinhood, Morningstar, and Motley Fool. Washington, DC fintech firms looking for a local product development partner can shortlist it.
Key Facts
- Best for: Fintech products and digital financial experiences
- Core services: Product strategy, UX design, web development, and software engineering
- Specialization: Fintech, investment, financial services, and data visualization
- Location: Falls Church, Virginia
- Notable strength: Local DC-area presence combined with proven fintech product experience
Contact Information
- Website: www.viget.com
- E-mail: moc.tegiv@olleh
- Twitter: x.com/viget
- LinkedIn: www.linkedin.com/company/viget-labs
- Instagram: www.instagram.com/viget
- Address: 105 West Broad Street, 4th Floor, Falls Church, VA 22046
- Phone: 7038910670
11. Saritasa
Saritasa builds custom web apps, mobile products, cloud platforms, databases, and connected systems. For finance, it can deliver transaction apps, reporting platforms, internal workflow tools, customer portals, and third-party integrations. It covers discovery, design, engineering, testing, deployment, and maintenance. It also handles hardware, IoT, and immersive technology, though its web, mobile, and backend skills matter more for most fintech products. Washington, DC teams wanting a US developer with a wide technical range can consider Saritasa.
Key Facts
- Best for: Fintech products requiring multiple technology disciplines
- Core services: Web development, mobile apps, cloud, databases, IoT, and QA
- Specialization: Custom applications and integrated software systems
- US location: Newport Beach, California, with nationwide delivery
- Notable strength: Breadth across application, backend, cloud, and connected technologies
Contact Information
- Website: www.saritasa.com
- E-mail: moc.asatiras@ofni
- Facebook: www.facebook.com/SaritasaLLC
- Twitter: x.com/SaritasaLLC
- LinkedIn: www.linkedin.com/company/saritasa
- Address: 19900 MacArthur Blvd, #650 Irvine, CA 92612
- Phone: 888.905.0729
12. Trango Tech
Trango Tech builds mobile and web fintech apps, including digital wallets, mobile banking, investment platforms, payment integrations, and AI-supported financial tools. Its stack covers native iOS and Android, Flutter, React Native, modern web frameworks, Python, Java, Node.js, and the major cloud platforms.
The company can take a product from discovery and prototyping through interface design, backend development, testing, launch, and maintenance. That works for a startup building its first product and for an established firm adding a new customer channel. Trango Tech lists a Washington office at 740 15th Street NW, inside the District.
Key Facts
- Best for: Mobile-first banking, payments, wallet, and investment products
- Core services: Product discovery, UI/UX, mobile and web development, backend engineering, testing, and support
- Specialization: Fintech apps and cross-platform mobile delivery
- Location: Washington, DC
- Notable strength: Broad native and cross-platform mobile engineering coverage
Contact Information
- Website: trangotech.com
- E-mail: moc.hcetognart@ofni
- Facebook: www.facebook.com/trangotech
- Twitter: x.com/TrangoTech
- LinkedIn: www.linkedin.com/company/trangotech
- Instagram: www.instagram.com/trango_tech
- Address: 740 15th St NW 9th floor, Washington, DC 20005, USA
- Phone: +1 (866) 842-5679
13. Surf
Surf specializes in mobile product design and development, with a large banking and fintech practice. Its teams build neobanking apps, payment features, loan journeys, trading screens, loyalty functions, and KYC flows. They also add expense analytics and connect apps to internal banking systems. Surf offers native iOS and Android engineering alongside Flutter.
Surf is a strong choice when the mobile app is the product, not a side channel. Its work covers customer research, UX design, backend and middleware, QA, store release, DevOps, and post-launch support. Surf lists its Potomac, Maryland address as its Washington, DC location. Note that this office is in the wider DMV region, not inside the District.
Key Facts
- Best for: Consumer-facing mobile banking and trading applications
- Core services: Fintech product design, mobile engineering, backend development, QA, DevOps, and support
- Specialization: Neobanking, payments, lending journeys, and trading apps
- Location: Potomac, Maryland, serving the Washington, DC region
- Notable strength: Dedicated mobile fintech design and engineering workflow
Contact Information
- Website: surf.dev
- E-mail: ved.frus@olleh
- Facebook: www.facebook.com/surfint
- Twitter: x.com/surfgroupllc
- LinkedIn: www.linkedin.com/company/surfint
- Instagram: www.instagram.com/surf_international
- Address: 12430 Park Potomac Avenue, Potomac, MD 20854, Washington D.C.
- Phone: +19177281789
14. Ndimension Labs
Ndimension Labs builds custom fintech software for mobile banking, digital wallets, payments, accounting, wealth management, blockchain, and SaaS financial platforms. It handles both the app interface and the backend, including APIs, transaction functions, authentication, and third-party integrations.
Its Washington, DC offering targets startups and established businesses that want an outsourced product team. Work can start with planning and interface design, then move through mobile or web engineering, testing, release, and maintenance. Ndimension Labs serves this market remotely and is not a clearly documented District-headquartered firm. Buyers who need regular on-site work should keep that in mind.
Key Facts
- Best for: Startups building wallet, payment, banking, or finance SaaS products
- Core services: Mobile apps, web platforms, UI/UX, backend engineering, integrations, and maintenance
- Specialization: Digital wallets, mobile banking, accounting, wealth management, and blockchain fintech
- Location: Explicit Washington, DC service coverage
- Notable strength: Combined mobile, web, and backend fintech delivery
Contact Information
- Website: ndimensionlabs.com
- E-mail: moc.sbalnoisnemidn@olleh
- Facebook: www.facebook.com/people/Ndimension-Labs/100095001431999
- Twitter: x.com/ndimensionlabs
- LinkedIn: www.linkedin.com/company/ndimension-labs
- Instagram: www.instagram.com/ndimension.labs
- Address: 1951 NW, 7th Ave, Miami, FL, USA, 33136
- Phone: +919836442776
15. CMARIX
CMARIX offers custom software and app development to Washington, DC businesses, and financial software is one of its industries. Its engineers build web platforms, mobile apps, cloud applications, enterprise software, and APIs. It also provides quality assurance and dedicated development teams.
CMARIX fits a defined financial app, portal, integration layer, or modernization stream that needs a flexible technical partner. It can also build fintech features inside a wider business platform, such as billing, account management, reporting, or payment collection. It serves the District through a Washington-focused offering, while its main engineering team works outside the city.
Key Facts
- Best for: Defined financial software projects needing a broad engineering skill set
- Core services: Custom software, web and mobile apps, cloud development, APIs, QA, and dedicated teams
- Specialization: Bespoke business applications with financial functionality
- Location: Washington, DC service coverage through a distributed delivery model
- Notable strength: Access to multiple development disciplines under one engagement
Contact Information
- Website: www.cmarix.com
- E-mail: moc.xiramc@zib
- Facebook: www.facebook.com/cmarixinfotech
- LinkedIn: www.linkedin.com/company/cmarix
- Instagram: www.instagram.com/cmarixinfotech
- Address: 32572 Miller Ct. Temecula, CA 92592, USA
- Phone: +1 415-704-4242
16. TekInvent
TekInvent builds fintech software for digital banking, payment processing, financial management, and related mobile apps. It adds bank-grade security controls, payment gateway integration, and digital settlement functions. Its apps run on iOS, Android, Flutter, and React Native, and it also offers web development and staff augmentation.
TekInvent fits a team with a clear app concept that wants one vendor for interface work, engineering, and integrations. It lists Washington, DC among the US markets it serves. Its published contact details are centralized and give no full local street address. District buyers who need face-to-face delivery should confirm on-site availability.
Key Facts
- Best for: Digital banking, payment, and mobile fintech application projects
- Core services: iOS, Android, cross-platform, web development, integrations, and staff augmentation
- Specialization: Payment functionality and secure financial applications
- Location: Washington, DC market coverage
- Notable strength: Mobile delivery across native and cross-platform technologies
Contact Information
- Website: tekinvent.com
- E-mail: moc.tnevniket@ofni
- Facebook: www.facebook.com/tekinvent
- Twitter: x.com/TekInvent
- LinkedIn: www.linkedin.com/company/tekinvent
- Instagram: www.instagram.com/tekinvent
- Address: 30 N Gould St Ste R Sheridan, WY 82801 United States
- Phone: +18335444999
17. BitsWits
BitsWits builds mobile fintech apps for banking, payments, wealth management, peer-to-peer transfers, and digital wallets. Its developers use native and cross-platform mobile technologies. They connect apps to payment gateways, financial data providers, cloud services, and AI components. Work runs from discovery and design to backend development, testing, launch, and support.
Depending on the product, BitsWits can add identity checks, transaction monitoring, encryption, and audit-friendly workflows for compliance. It serves Washington, DC clients through a distributed US delivery model. Teams that want a polished mobile app backed by solid API and backend work may find it a good match.
Key Facts
- Best for: Fintech businesses developing customer-facing mobile products
- Core services: Mobile app strategy, UI/UX, native and cross-platform development, APIs, testing, and support
- Specialization: Wallets, payments, banking apps, peer-to-peer finance, and wealth applications
- Location: Washington, DC service coverage
- Notable strength: Mobile product delivery with payment and financial data integrations
Contact Information
- Website: www.bitswits.co
- E-mail: oc.stiwstib@ofni
- Facebook: www.facebook.com/officialbitswits
- Twitter: x.com/BitsWits_
- LinkedIn: www.linkedin.com/company/officialbitswits
- Instagram: www.instagram.com/officialBitsWits
- Address: 1826 Park Rd NW, Washington, DC 20010, United States
- Phone: +1 833 500 6007
18. Soft Suave
Soft Suave provides custom software, mobile and web app development, AI, and outsourced development. In fintech, it builds payment gateways, wallets, banking apps, lending, investment products, and accounting systems. It also builds compliance functions such as KYC and AML workflows.
Clients can hire a dedicated team, order an MVP, or add engineers to an existing product group. That helps a growing fintech add capacity without hiring every role in-house. Soft Suave lists a US address at 3030 K Street NW in Washington, DC, while a wider distributed team does much of the technical work.
Key Facts
- Best for: Fintech teams seeking dedicated developers or outsourced product delivery
- Core services: Custom software, mobile and web development, AI, QA, and staff augmentation
- Specialization: Payments, wallets, lending, investment apps, and compliance-oriented fintech features
- Location: Washington, DC
- Notable strength: Flexible team extension and project-based engagement options
Contact Information
- Website: www.softsuave.com
- E-mail: moc.evaustfos@tcatnoc
- LinkedIn: www.linkedin.com/company/softsuave
- Instagram: www.instagram.com/softsuavetech
- Address: Soft Suave LLC, 3030 K Street NW, Suite 102, Washington, DC 20007, USA
- Phone: +14102206301
19. Gletus
Gletus builds fintech apps for Washington, DC businesses. It works on mobile banking, payment apps, wallets, lending systems, personal finance tools, and other customer-facing financial products. Its teams handle design, mobile and web engineering, backend development, API integration, testing, and maintenance.
Gletus offers an offshore development model with explicit coverage of the District. It fits a focused MVP or a well-documented app build where requirements, milestones, security duties, and acceptance criteria are set early. Gletus shows no physical Washington office, so expect remote delivery. Confirm working hours and support terms before signing.
Key Facts
- Best for: Cost-conscious fintech MVPs and defined application builds
- Core services: UI/UX, mobile and web development, backend engineering, APIs, QA, and maintenance
- Specialization: Mobile banking, payments, wallets, lending, and personal finance applications
- Location: Explicit Washington, DC service coverage through remote delivery
- Notable strength: End-to-end application development for a clearly scoped fintech product
Contact Information
- Website: gletus.com
- E-mail: moc.sutelg@ofni
- Facebook: www.facebook.com/gletus.technology.official
- Twitter: x.com/gletus_tech
- LinkedIn: www.linkedin.com/company/gletus-technology-pvt-ltd
- Instagram: www.instagram.com/gletus_technology
- Address: 252, 2nd Floor, Blue Star Plaza, Sarja Market, Sector-7, Rohini, New Delhi - 110085, India
- Phone: +919131739457
Conclusion
Washington, DC offers a solid mix of local engineering firms and nationally established fintech developers. The right fit depends less on company size and more on the work at hand. A payment platform needs different technical depth than a wealth management dashboard, lending system, or legacy banking modernization project. Before signing a contract, compare relevant fintech experience, security practices, integration capabilities, and familiarity with financial regulations. Delivery structure matters too. Some projects benefit from a full product team, while others only need a few experienced engineers to strengthen an existing department. A clear match in these areas usually leads to fewer surprises once development begins.