Top companies specializing in secure software development for fintech USA focus on building regulated financial platforms that protect sensitive data, maintain auditability, and meet strict security standards. These companies work with banks, trading platforms, wealth management systems, and digital banking products that demand high availability, resilient integrations, and continuous compliance alignment.
Their teams apply domain knowledge across KYC, AML, payment flows, market data handling, and legacy modernization while embedding role-based access, encryption, and controlled delivery practices into every stage of the product lifecycle. The result is stable, scalable software ready for high-load environments and evolving regulatory requirements across the United States.
1. Itexus
Itexus builds secure software for fintech that addresses the regulatory and operational demands of the USA market. Our work centers on systems with solid auditability, data protection, and controlled access so financial products stay reliable under close scrutiny. We design architectures that embed encryption, role-based permissions, and compliance readiness from the outset.
In our approach to secure development, security checks and regulatory requirements become part of every stage. Our processes support data integrity and resilience for platforms that handle sensitive financial information in the USA context. We also maintain monitoring and testing practices that keep systems aligned with changing standards.
Key Highlights:
- Emphasis on auditability and data protection in financial systems
- Integration of encryption and access controls into architecture
- Alignment with compliance standards for regulated products
- Focus on resilience for platforms handling sensitive information
Services:
- Secure software development for fintech
- Cybersecurity and compliance support
- Secure architecture design for financial platforms
- Penetration testing and security audits
- Compliance readiness for regulated environments
- Data protection and access control implementation
Contact Information:
- Website: itexus.com
- Email: [email protected]
- 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. ScienceSoft
ScienceSoft develops custom fintech software with a clear focus on data security and regulatory compliance for banking, payments, lending, and insurance systems. The company designs solutions that support secure client-facing applications, complex processing engines, and peer-to-peer platforms. They embed protection measures into the architecture so financial data stays protected during transactions and storage. The agency also modernizes existing finance software while keeping security controls intact. ScienceSoft builds fraud detection tools and compliance monitoring systems that help organizations track adherence to internal policies and external rules. They create digital wallets and data analytics platforms that handle sensitive information under controlled conditions. The company provides consulting to define security requirements early and then delivers the full development cycle with quality checks. Their approach covers both new builds and upgrades of legacy finance systems so the resulting products remain stable in regulated environments.
Key Highlights:
- Focus on data security within fintech solution design
- Support for regulatory compliance across banking and insurance workflows
- Experience building fraud detection and monitoring tools
- Capability to modernize legacy finance software while preserving controls
Services:
- Custom fintech software development
- Client-facing application engineering
- Complex processing system creation
- Peer-to-peer platform development
- Fraud detection software
- Compliance monitoring systems
- Digital wallet solutions
Contact Information:
- Website: www.scnsoft.com
- Phone: +1 214 306 6837
- Email: [email protected]
- Address: 5900 S. Lake Forest Drive, Suite 300, McKinney, Dallas area, TX-75070
- LinkedIn: www.linkedin.com/company/sciencesoft
- Facebook: www.facebook.com/sciencesoft.solutions
- Twitter: x.com/ScienceSoft
3. A-listware
A-listware delivers cybersecurity consulting that helps finance organizations protect complex IT environments and meet compliance needs. The company performs security audits and penetration testing to uncover vulnerabilities in infrastructure and applications. They assess cloud configurations and review web, mobile, and application security. The agency implements and optimizes SIEM solutions so teams can detect threats earlier. A-listware supports vulnerability management and stress testing activities that strengthen overall posture. They assist with compliance preparation for standards such as PCI DSS through audits and documentation reviews. The company follows a prevent-detect-respond model that combines strategic guidance with technical execution. Their consultants work with regulated industries including finance to build incident response plans and tailored security strategies that match real operational risks.
Key Highlights:
- Security audits and penetration testing for finance environments
- Infrastructure and cloud configuration assessments
- SIEM implementation support
- Compliance assistance aligned with PCI DSS requirements
Services:
- Threat assessment and vulnerability analysis
- Tailored security strategy development
- Incident response planning
- Security monitoring and detection advisory
- Compliance and regulatory support
- Web and application security reviews
Contact Information:
- Website: a-listware.com
- Phone: +1 (888) 337 93 73
- Email: [email protected]
- Address: North Bergen, NJ 07047, USA
- LinkedIn: www.linkedin.com/company/a-listware
- Facebook: www.facebook.com/alistware
4. Apriorit
Apriorit builds fintech software with security integrated at every stage of development. The company creates digital payment solutions, banking systems, wealth management platforms, and blockchain-based applications while protecting sensitive data. They follow secure SDLC principles so protection measures stay present from design through release. The agency implements identity controls such as multi-factor authentication and encryption to limit access to financial records. Apriorit helps organizations meet requirements under GDPR, PCI DSS, PSD2, and related regulations from the earliest planning steps. They deliver full-cycle development that covers research, implementation, and post-release maintenance. The company also focuses on user experience without compromising data protection. Their teams handle custom requests that require balancing performance with strong security controls in regulated financial products.
Key Highlights:
- Secure SDLC practices applied throughout development
- Identity and data protection measures for financial records
- Support for GDPR, PCI DSS, and PSD2 alignment
- Full-cycle delivery from research to maintenance
Services:
- Digital payments solution development
- Banking and financial system engineering
- Wealth management platform creation
- Blockchain and cryptocurrency applications
- Finance management solutions
- AI and ML model integration for risk tasks
Contact Information:
- Website: www.apriorit.com
- Phone: +1 714-584-0295
- Email: [email protected]
- Address: 20 Central Ave, Unit 505 Lynn, MA 01901, USA
- LinkedIn: www.linkedin.com/company/apriorit
- Facebook: www.facebook.com/apriorit
- Twitter: x.com/apriorit
5. Salt Technologies
Salt Technologies creates secure software for financial services companies that handle payments, trading, and banking applications. The company builds systems that meet PCI-DSS and SOC2 expectations so compliance stays part of the delivery process. They develop payment processing solutions with proper tokenization and encryption. The agency also delivers real-time trading platforms and portfolio tools that maintain accurate market data handling. Salt Technologies constructs digital banking experiences and lending platforms under enterprise-grade security practices. They implement fraud detection, risk scoring, and transaction monitoring capabilities. The company supports regulatory reporting and audit trail features that help organizations stay aligned with requirements. Their teams include engineers familiar with financial domain needs and work under strict confidentiality protocols.
Key Highlights:
- PCI-DSS and SOC2 aligned development practices
- Payment systems with tokenization and encryption
- Real-time trading and investment platform engineering
- Fraud detection and transaction monitoring capabilities
Services:
- Payment processing and gateway development
- Trading and investment platform creation
- Banking and neobank application engineering
- Fraud detection and risk systems
- Regulatory reporting and compliance automation
- Digital wallet and crypto integration solutions
Contact Information:
- Website: www.salttechno.com
- Phone: +1 (844) 766-2754
- Email: [email protected]
- Address: 8911 N Capital of Texas Hwy, Suite 4200 #1084, Austin, TX 78759
- LinkedIn: www.linkedin.com/company/salt-technologies
- Facebook: www.facebook.com/SaltTechno
- Twitter: x.com/salttechno
- Instagram: www.instagram.com/salt_technologies
6. Deloitte
Deloitte provides cybersecurity solutions that help financial organizations operate with resilience and protect sensitive systems. The company offers cyber defense and resilience capabilities to detect, analyze, and contain threats. They deliver cyber operate support that combines talent and technology for end-to-end security. The agency develops cyber strategy and transformation approaches that address evolving risks. Deloitte supports digital trust and privacy efforts so organizations can defend against cyber threats. They also cover enterprise security that secures transformation from development through deployment. The company includes cyber AI options that assist with designing and operating future-ready protections. Their work extends to financial services environments where security and compliance remain central to digital operations.
Key Highlights:
- Cyber defense and resilience for threat detection and containment
- Enterprise security covering development to deployment stages
- Digital trust and privacy platforms for threat defense
- Cyber strategy support tailored to organizational needs
Services:
- Cyber defense and resilience
- Cyber operate support
- Cyber strategy and transformation
- Digital trust and privacy
- Enterprise security
- Cyber AI solutions
Contact Information:
- Website: www.deloitte.com
- Phone: +1 205 321 6000
- Address: 420 North 20th Street, Suite 2400, Birmingham, AL, 35203-3289, United States
- LinkedIn: www.linkedin.com/company/deloitte
- Facebook: www.facebook.com/deloitte
- Twitter: x.com/deloitte
- Instagram: www.instagram.com/lifeatdeloitteus
7. IBM
IBM delivers IT solutions for financial services that prioritize secure digital systems alongside AI and automation. The company addresses escalating cybersecurity threats that arise with hybrid cloud and AI adoption. They promote zero trust security approaches designed for banking and financial services leaders. The agency provides cloud environments built specifically for financial services that maintain security and compliance during modernization. IBM supports payments modernization that strengthens resilience while meeting compliance expectations. They help organizations protect sensitive data and customer confidence against expanding attack surfaces. The company also assists with continuous compliance and governance practices that reduce cloud-related risks. Their tools and consulting focus on securing operations while enabling growth in regulated financial settings.
Key Highlights:
- Zero trust security guidance for banking and financial services
- Cloud offerings designed with security and compliance controls
- Focus on protecting sensitive data amid hybrid cloud adoption
- Support for continuous compliance and risk reduction
Services:
- Cybersecurity threat management
- Zero trust security implementation
- Cloud banking with security controls
- Payments modernization and resilience
- Application modernization under secure frameworks
- Data and AI consulting with governance
Contact Information:
- Website: www.ibm.com
- Phone: 1-800-426-4968
- Address: 1 New Orchard Road Armonk, New York, 10504-1722, United States
- LinkedIn: www.linkedin.com/company/ibm
- Twitter: x.com/ibm
- Instagram: www.instagram.com/ibm
8. Infosys
Infosys supports financial services organizations with AI-first solutions that include risk modeling and fraud detection capabilities. The company helps institutions address evolving regulatory demands while building secure operational foundations. They focus on transforming risk and compliance processes through advanced tools. The agency enables automation in areas such as financial crime operations that require strong protective measures. Infosys works on digital banking initiatives that incorporate security and regulatory alignment. They assist with real-time payments and open finance efforts where data protection remains essential. The company provides frameworks that help enterprises scale AI while managing associated risks. Their offerings cover consumer banking, capital markets, and related segments with attention to secure delivery.
Key Highlights:
- AI-supported risk modeling and fraud detection
- Support for regulatory demands in financial operations
- Automation of financial crime related processes
- Digital banking initiatives with protective measures
Services:
- Risk and compliance transformation
- Fraud detection solutions
- Financial crime operations support
- Digital banking development
- Real-time payments enablement
- AI-first value frameworks for secure scaling
Contact Information:
- Website: www.infosys.com
- Phone: +1 512 953 1571
- Address: 507 E Howard Ln, Building 1, Suite 200, Austin, TX 78753
- LinkedIn: www.linkedin.com/company/infosys
- Facebook: www.facebook.com/Infosys
- Twitter: x.com/Infosys
9. SoftServe
SoftServe accelerates modernization and operational efficiency across banking, insurance, fintech, and payments with attention to security and compliance. The company designs multi-agent systems that automate workflows such as onboarding, KYC, AML, and compliance tasks. They implement fraud detection and behavioral analytics that identify anomalies in real time. The agency supports regulatory reporting and back-office automation while maintaining required controls. SoftServe pairs enterprise finance optimization with enterprise-grade cybersecurity to create a secure foundation for digital transformation. They modernize core platforms using approaches that reduce legacy constraints without compromising protection. The company also delivers solutions for intelligent underwriting and risk decisioning that incorporate secure data handling. Their work helps organizations manage compliance complexity through automated and cloud-native modules.
Key Highlights:
- Automation of KYC, AML, and compliance workflows
- Real-time fraud detection and behavioral analytics
- Enterprise-grade cybersecurity paired with finance optimization
- Regulatory reporting and compliance automation support
Services:
- Core and legacy modernization
- Agentic AI for process automation
- Client onboarding and KYC operations
- Fraud and behavioral analytics
- Regulatory reporting and compliance
- Enterprise cybersecurity solutions
Contact Information:
- Website: www.softserveinc.com
- Phone: +1-512-516-8880
- Address: 201 W 5th Street Suite 1550 Austin, TX 78701
- LinkedIn: www.linkedin.com/company/softserve
- Facebook: www.facebook.com/SoftServeCompany
- Twitter: x.com/SoftServeInc
- Instagram: www.instagram.com/softserve_people
10. EPAM
EPAM helps financial services companies address emerging technologies and changing regulations through secure digital solutions. The company develops digital banking transformation initiatives that maintain necessary protections. They create wealth management applications and payments solutions under controlled conditions. The agency offers RegTech and compliance capabilities that support regulatory alignment. EPAM works with investment banks, retail banks, payment providers, and related institutions on secure platforms. They provide smart onboarding tools that streamline KYC processes while protecting data. The company also supports capital markets and exchanges with technology that accounts for security requirements. Their approach includes cloud migration efforts that deliver benefits while addressing cybersecurity considerations in financial environments.
Key Highlights:
- RegTech and compliance capabilities for regulatory alignment
- Digital banking transformation with protective measures
- Smart onboarding solutions for KYC processes
- Support for payments and capital markets under secure conditions
Services:
- Digital banking transformation
- Wealth management applications
- Payments and cards solutions
- RegTech and compliance
- Capital markets and exchanges support
- FinTech and emerging technology development
Contact Information:
- Website: www.epam.com
- Phone: +1-267-759-9000
- Address: 41 University Drive • Suite 202, Newtown, PA 18940, USA
- LinkedIn: www.linkedin.com/company/epam-systems
- Facebook: www.facebook.com/EPAM.Global
- Instagram: www.instagram.com/epamsystems
11. Intellectsoft
Intellectsoft develops financial software with attention to security needs in banking and related areas. The company creates online banking platforms that include dedicated security features. They build blockchain solutions that increase service security for financial institutions. The agency designs digital wallet applications focused on high security demands. Intellectsoft supports trading and securities software that incorporates protective measures. They implement robotic process automation to streamline compliance related tasks. The company also delivers custom fintech solutions and mobile applications that handle sensitive financial operations under controlled conditions. Their work covers identity management within blockchain environments and supports regulatory reporting through automated processes.
Key Highlights:
- Online banking platforms with dedicated security features
- Blockchain solutions that increase service security
- Digital wallet applications focused on high security
- Robotic process automation for compliance tasks
Services:
- Online banking system development
- Blockchain and cryptocurrency platforms
- Digital wallet creation
- Trading and securities software
- Robotic process automation for compliance
- Custom fintech solution engineering
- Mobile banking and payment applications
Contact Information:
- Website: www.intellectsoft.net
- Phone: +1 (650) 233-6196
- Email: [email protected]
- Address: 500 Fashion Ave, Fl 8A, New York City, 10018, USA
- LinkedIn: www.linkedin.com/company/intellectsoft
- Facebook: www.facebook.com/Intellectsoft
- Twitter: x.com/Intellectsoft
12. DXC
DXC provides technology solutions for financial services that address cybersecurity risks and support secure platform development. The company helps banks and related firms modernize critical systems while aligning with regulatory requirements. They deliver core banking solutions that maintain operational stability. The agency offers trading and risk management support through specialized implementations. DXC builds resilience and regulatory solutions that facilitate compliance and data integrity. They provide bespoke software engineering that combines domain knowledge with technical delivery. The company also focuses on modernization efforts that migrate legacy platforms while preserving necessary protections. Their approach includes AI and data capabilities that improve governance and reporting in regulated environments.
Key Highlights:
- Support for addressing cybersecurity risks in financial systems
- Resilience and regulatory solutions for compliance and data integrity
- Core banking modernization with stability focus
- Bespoke software engineering for complex financial needs
Services:
- Core banking solutions
- Trading and risk management support
- Resilience and regulatory solutions
- Bespoke software engineering
- Modernization and simplification of platforms
- AI and data management for governance
Contact Information:
- Website: dxc.com
- Phone: 1-844-201-1125
- Email: [email protected]
- LinkedIn: www.linkedin.com/company/dxctechnology
- Instagram: www.instagram.com/DxcTechnology
13. Accenture
Accenture supports banking organizations with consulting that includes cybersecurity and risk management capabilities. The company helps institutions enhance cyber resilience to maintain trust. They address complex risks through AI and automation that improve regulatory efficiency. The agency works on core banking modernization that reduces associated risks. Accenture develops payments solutions with attention to secure digital experiences. They assist with lending platforms that incorporate data-powered decisioning under controlled conditions. The company also focuses on banking operations transformation that integrates protective measures. Their efforts cover customer engagement strategies that rely on secure data handling practices.
Key Highlights:
- Cybersecurity integration to enhance resilience
- Risk and compliance support using AI and automation
- Core banking modernization that reduces risks
- Secure data handling in customer engagement efforts
Services:
- Cybersecurity for banking resilience
- Risk and compliance enhancement
- Core banking modernization
- Payments solution development
- Lending platform engineering
- Banking operations transformation
Contact Information:
- Website: www.accenture.com
- Phone: +19174524400
- Address: 395 9th Avenue, New York, NY, 10001
14. Baker Tilly
Baker Tilly delivers financial and operational support for fintech organizations with a focus on compliance and risk management. The company provides audit services that assess financial statements and internal controls. They offer risk advisory covering governance and compliance considerations. The agency supports bank compliance efforts that include cybersecurity related solutions. Baker Tilly develops financial crimes solutions centered on anti-money laundering and know-your-customer processes. They assist with regulatory compliance so organizations can maintain required standards. The company also handles financial reporting needs that support transparency and stakeholder confidence. Their work extends across startup to mature stages with attention to risk mitigation.
Key Highlights:
- Audit services assessing internal controls and financial statements
- Risk advisory for governance and compliance
- Financial crimes solutions focused on anti-money laundering processes
- Bank compliance support that includes cybersecurity elements
Services:
- Comprehensive audit services
- Risk advisory and governance support
- Bank compliance solutions
- Financial crimes prevention and detection
- Financial reporting assistance
- IPO readiness and related compliance preparation
Contact Information:
- Website: www.bakertilly.com
- Phone: +1 (480) 444 3424
- Address: 5415 E High St, Suite 350, Phoenix, AZ 85054
- LinkedIn: www.linkedin.com/company/bakertillyus
- Facebook: www.facebook.com/bakertillyus
- Instagram: www.instagram.com/bakertillyus
15. CHI Software
CHI Software develops fintech solutions that emphasize improved security and regulatory compliance. The company creates applications for payments, banking, and digital transactions under protective frameworks. They implement authentication measures that strengthen financial management reliability. The agency supports process automation that contributes to controlled service delivery. CHI Software addresses regulatory compliance through dedicated approaches that monitor requirements. They modernize legacy systems into secure and high-performing applications. The company also focuses on delivering solutions that handle sensitive financial data during development and operation. Their work helps organizations maintain dependable digital financial management practices.
Key Highlights:
- Emphasis on improved security in fintech applications
- Support for regulatory compliance monitoring
- Modernization of legacy systems into secure applications
- Handling of sensitive financial data under protective frameworks
Services:
- Fintech application development for payments and banking
- Security measure implementation including authentication
- Regulatory compliance support
- Legacy system modernization
- Process automation for financial operations
- Digital transaction solution engineering
Contact Information:
- Website: chisw.com
- Email: [email protected]
- LinkedIn: www.linkedin.com/company/chisoftware
- Facebook: www.facebook.com/chisoftware
- Twitter: x.com/chisoftware
- Instagram: www.instagram.com/chi.software
16. Wildnet Edge
Wildnet Edge develops secure software for fintech platforms that operate under strict regulatory and high-volume conditions in the USA. The company focuses on end-to-end engineering for banking systems, real-time payment rails, and mobile banking applications. Their work includes integration with legacy cores, multi-currency settlement engines, and frameworks that meet standards such as PCI-DSS. Wildnet Edge builds fraud detection systems that respond to changing threat patterns and supports predictive analytics for financial products. The company also handles connections to credit bureaus, payment gateways, AML systems, and trading engines. Their approach prioritizes security, accuracy, and continuous uptime for institutions that cannot compromise on compliance or transaction reliability.
Key Highlights:
- Focus on secure and scalable banking platform engineering
- Experience with PCI-DSS compliance and regulatory frameworks
- Development of adaptive fraud detection systems
- Support for high-transaction and high-compliance environments
Services:
- Secure software development for fintech
- Core banking modernization
- Real-time payment rail development
- Mobile banking application engineering
- AI-driven fraud detection and risk systems
- Integration with payment gateways and AML platforms
Contact Information:
- Website: www.wildnetedge.com
- Phone: +1 (212) 901 8616
- Email: [email protected]
- Address: 26 Broadway Street Suite 934, New York, NY 10004, USA
- LinkedIn: www.linkedin.com/showcase/wildnetedge
- Facebook: www.facebook.com/people/Wildnet-Edge/61575884197138
- Twitter: x.com/wildnetedge
- Instagram: www.instagram.com/wildnetedge
Conclusion
Secure software development for fintech USA sits at a point where technical precision and regulatory reality meet every day. The platforms that move money, verify identities, and settle trades cannot afford gaps in audit trails, encryption, or access controls. What works for a consumer app simply does not transfer here. The stakes are higher, the scrutiny tighter, and the cost of a single overlooked control can ripple across transactions, customer trust, and supervisory attention.
Specialized teams that understand liquidity flows, settlement cycles, and the weight of standards like PCI DSS or SOC 2 bring more than code. They bring the judgment to embed compliance into architecture from the first design decision rather than bolting it on later. That difference shows up in systems that stay stable under load, adapt when rules shift, and keep sensitive data protected without slowing delivery to a crawl.
In the end, the choice of partner shapes whether a fintech product remains a reliable piece of financial infrastructure or becomes a recurring source of remediation work. The organizations that treat security and domain expertise as non-negotiable foundations tend to move faster over the long run, not slower. They avoid the expensive cycle of rebuilds and regulatory catch-up that catches so many projects off guard. For anyone building or modernizing financial software in the United States, that practical reality is what separates lasting platforms from temporary ones.