Across the United States, a range of companies focus on payment gateway integration for merchants. They enable websites, apps, and digital storefronts to accept credit cards along with other common payment options from customers.
These companies manage the links between business systems and processors. Compatibility with popular e-commerce platforms and adherence to security requirements make up a core part of what they deliver to American retailers.
1. Itexus
Itexus focuses our payment gateway integration on connecting products to processors. Our work includes tokenization to keep card data protected during the transfers. We handle idempotency and related checks so transactions stay accurate. Our setups consider the typical requirements of the USA market around compliance and settlement.
We add multi-currency handling and reconciliation to the integrations. Our work also covers 3-D Secure for added card verification. The results from us support stable payment processing for USA-based operations. Extra elements in our work help maintain consistent transaction flows without interruptions.
Key Highlights:
- Tokenization for card data
- Idempotent checks
- Multi-currency support
- Reconciliation processes
Services:
- Payment gateway integration
- Tokenization implementation
- 3-D Secure handling
- Reconciliation setup
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. Oxagile
Oxagile develops payment integrations that unify providers so businesses can process transactions. The company handles connections to regional payment service providers. They manage migration when shifting existing payment setups. The agency implements routing that directs transactions to suitable processors.
They add analytics so payment flows stay visible. Oxagile includes security measures throughout the integration work. The company sets up failover to keep transactions moving if one path has issues. They provide support to maintain the connections. The agency also works on digital wallet links and alternative payment options as part of the same projects.
Key Highlights:
- Provider unification
- Regional PSP connections
- Transaction routing
- Failover handling
Services:
- Payment migration
- Analytics setup
- Security implementation
- Digital wallet connections
- Alternative payment support
Contact Information:
- Website: www.oxagile.com
- Phone: +1 332 242 2402
- Address: 165 Broadway, 23rd Floor, New York, NY 10006, USA
- LinkedIn: www.linkedin.com/company/oxagile
3. MTechZilla
MTechZilla provides payment gateway integration for USA businesses using Stripe. The company sets up recurring billing that runs automatically for subscriptions. They configure processing for purchase based payments. The agency implements custom billing logic that matches different pricing approaches.
They include tokenization and related security in every setup. MTechZilla handles webhook connections for the payment flows. The company aligns the work with required data protection standards. They complete the full configuration from account preparation through to live deployment. The agency also covers refund capabilities and receipt generation within the integrations.
Key Highlights:
- Stripe focused setup
- Recurring billing configuration
- Custom pricing structures
- Tokenization security
- Webhook handling
Services:
- Purchase payment processing
- Subscription management
- Security alignment
Contact Information:
- Website: www.mtechzilla.com
- Phone: +1 302 208 5468
- Email: [email protected]
- Address: 2150 N First St, Suite 400 PMB 2046, San Jose, CA 95131, United States
- LinkedIn: www.linkedin.com/company/mtechzilla
- Facebook: www.facebook.com/mtechzilla
- Twitter: x.com/mtechzilla
- Instagram: www.instagram.com/mtechzilla
4. Iconier
Iconier delivers payment gateway and API integration solutions that support checkout experiences. The company focuses on combining speed with security in payment processing. They provide reliable processing as part of the work they do for sites. The agency helps add these capabilities so transactions can take place directly.
Iconier works to keep the checkout process running without added steps. The company includes scalability considerations in the payment solutions. They handle API connections alongside the gateway work. The agency supports businesses looking to accept payments through their digital properties. Iconier keeps the emphasis on making the payment part function as a connected piece of the overall site.
Key Highlights:
- Checkout experience support
- API connections
- Speed and security combination
Services:
- Payment processing
- Gateway setup
- API integration
- Digital property connections
- Transaction handling
- Checkout flow work
Contact Information:
- Website: www.iconier.com
- Phone: +1 (702) 238 5098
- Email: [email protected]
- Address: 800 N Rainbow Blvd #178, Las Vegas, NV 89107, United States
- LinkedIn: www.linkedin.com/company/iconier
- Facebook: www.facebook.com/iconier
- Twitter: x.com/iconierinc
- Instagram: www.instagram.com/iconieragency
5. CMARIX
CMARIX provides payment API integration for websites and mobile apps. The company incorporates payment solutions so users can complete transactions from within the properties. They take care of the integration tasks while the business side stays focused on other plans. The agency follows governance risk and compliance requirements in the work.
They adhere to PCI DSS standards during the setups. CMARIX uses enterprise integration approaches for the payment APIs. The company manages the full life cycle of the APIs. They support data standards and formats needed for the connections. The agency delivers the integration so that transactions stay protected. CMARIX also handles maintenance after the initial work is done.
Key Highlights:
- Website and app integration
- PCI DSS adherence
- Full life cycle API management
- Governance risk and compliance
- Data standards support
- Ongoing maintenance
Services:
- Payment solution incorporation
- API connection work
- Secure transaction handling
- Compliance alignment
Contact Information:
- Website: www.cmarix.com
- Email: [email protected]
- Phone: +1 415-704-4242
- Address: 32572 Miller Ct. Temecula, CA 92592
- Facebook: www.facebook.com/cmarixinfotech
- Twitter: x.com/cmarixinfotech
- LinkedIn: www.linkedin.com/company/cmarix
- Instagram: www.instagram.com/cmarixinfotech
6. Milestone
Milestone handles payment processing and gateway integration for platforms. The company builds the core processing setup from the start. They create architectural designs that support the payment flows. The agency scales existing digital payment capabilities as needed.
They perform API based integrations to connect the systems. Milestone offers fully managed services around the payment work. The company migrates components when moving environments. They provide operational support after the platform is in place. The agency also covers back office elements related to the payments. Milestone focuses on keeping the processing side running for merchants.
Key Highlights:
- Core platform building
- Architectural design
- API based connections
- Managed services
Services:
- Payment capability scaling
- Environment migration
- Operational support
- Back office assistance
- Processing platform work
Contact Information:
- Website: milestone.tech
- Phone: (877) 651-2454
- Address: 2201 Walnut Ave, Ste 290, Fremont, CA 94538
- LinkedIn: www.linkedin.com/company/milestone-technologies
- Facebook: www.facebook.com/MilestoneTechnologiesInc
- Twitter: x.com/MilestoneTech
- Instagram: www.instagram.com/milestone_technologies_
7. GreatWorks
GreatWorks delivers payment gateway integration that connects platforms to processors. The company sets up the links for e-commerce and related applications. They handle subscription billing as part of the work. The agency implements marketplace payment routing when needed.
They include mobile payment connections in the projects. GreatWorks adds security and compliance measures to the integrations. The company supports different currencies through the setups. They work on fraud related protections within the payment flows. The agency also covers checkout options and related transaction handling. GreatWorks keeps the focus on making the payment part function inside the existing applications.
Key Highlights:
- Processor connections
- Subscription billing
- Marketplace routing
- Mobile payment links
- Security and compliance
Services:
- E-commerce payment setup
- Currency support
- Fraud protection
- Checkout handling
Contact Information:
- Website: greatworks.ai
- Phone:+1 408-858-5609
- Email: [email protected]
- Address: 15065, Sunnyside ave, Morgan hill, CA 95037
- LinkedIn: www.linkedin.com/company/greatworkstechnologies
- Facebook: www.facebook.com/greatworkstechnologies
- Twitter: x.com/greatworkstech
- Instagram: www.instagram.com/greatworkstechnologies
8. A-listware
A-listware specializes in software development services that cover payment software. The company implements technology into business processes. They provide consulting to identify suitable approaches. The agency creates custom software for different requirements.
They handle enterprise software development as well. A-listware works on software product development. The company develops cloud applications. They modernize legacy software when needed. The agency also offers support and maintenance after the main work.
Key Highlights:
- Custom software creation
- Enterprise development
- Cloud application work
- Legacy modernization
- Payment software coverage
Services:
- Software consulting
- Product development
- Support and maintenance
- Cloud development
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
9. Vention
Vention handles payment gateway integration with a focus on Stripe related work. The company builds custom payment solutions that fit specific business needs. They set up Stripe Connect for platform style operations. The agency also covers Stripe Billing for recurring setups and Terminal for in person options.
They keep the integration process aligned with the required connections. Vention works on linking the payment elements into existing systems. The company manages the overall gateway setup so transactions can move through. They include the necessary adjustments for different payment flows. The agency supports the full range of these Stripe based connections.
Key Highlights:
- Stripe focused integration
- Custom payment solution building
- Connect setup for platforms
- Billing configuration
Services:
- Custom payment solutions
- Stripe Connect implementation
- Billing setup
- Terminal connections
Contact Information:
- Website: ventionteams.com
- Phone: +1 (718) 374-5043
- Email: [email protected]
- Address: 575 Lexington Avenue, 14th Floor, NY 10022
- LinkedIn: www.linkedin.com/company/ventionteams
- Twitter: x.com/ventionteams
- Instagram: www.instagram.com/ventionteams
10. Softeq
Softeq provides payment integration for mobile and web environments. The company works with Stripe along with PayPal and Braintree. They also handle CardConnect connections. The agency includes NFC support in the payment flows.
They set up recurring payment options as needed. Softeq covers multi currency handling within the integrations. The company links the chosen processors into the applications. They manage the full payment connection process. The agency keeps the focus on stable transaction handling across the supported methods.
Key Highlights:
- Mobile and web payment links
- Processor connections including Stripe
- NFC support
- Recurring payment options
- Multi currency handling
Services:
- PayPal integration
- Braintree connections
- CardConnect setup
- Recurring billing
Contact Information:
- Website: www.softeq.com
- Email: [email protected]
- Phone: +1 888 552-5001
- Address: 1155 Dairy Ashford Rd., Suite 125 Houston, Texas 77079 USA
- LinkedIn: www.linkedin.com/company/softeq
- Twitter: x.com/Softeq
- Facebook: www.facebook.com/softeq
- Instagram: www.instagram.com/softeq
11. Praxent
Praxent focuses on fintech engineering that includes B2B payment integrations. The company modernizes existing payment platforms. They connect systems to processors as part of the work. The agency also links payments with ERP tools.
They handle the updates needed for older payment setups. Praxent builds the integration layers that keep transactions moving. The company manages the connections between different payment related systems. They support the overall modernization process. The agency keeps the payment flows functional after the changes.
Key Highlights:
- B2B payment integration
- Payment platform modernization
- Processor connections
- ERP linking
Services:
- Fintech engineering
- Platform updates
- Processor integrations
- ERP payment connections
Contact Information:
- Website: praxent.com
- Phone: (512) 553-6830
- Email: [email protected]
- Address: 901 S MoPac Expressway Building 1, Suite 300 – #7072, Austin, TX 78746
- LinkedIn: www.linkedin.com/company/praxent
12. ROI Payments
ROI Payments provides consulting on payment strategies along with the actual integration work. The company evaluates existing gateways and implements new ones. They set up multi processor arrangements when needed. The agency covers fraud and compliance elements in the process.
They guide the selection of suitable gateway options. ROI Payments manages the full implementation of the chosen setups. The company links multiple processors into one system. They keep the compliance side addressed throughout. The agency supports the complete payment strategy and connection process.
Key Highlights:
- Payment strategy consulting
- Gateway evaluation
- Multi processor arrangements
- Fraud and compliance coverage
Services:
- Strategy consulting
- Gateway implementation
- Multi processor setup
- Compliance handling
Contact Information:
- Website: www.roipayments.com
- Phone: +1 212.812.4177
- Email: [email protected]
- Address: 30 Vesey Street, 9th Floor, New York, NY 10007
- LinkedIn: www.linkedin.com/company/roi-payments
- Twitter: x.com/bonkingmad
13. Mercury Development
Mercury Development works on enterprise fintech and payment technologies. The company develops custom gateways from scratch. They handle the integrations that connect those gateways to other systems. The agency focuses on the full payment technology side.
They manage the development of the gateway components. Mercury Development links the custom pieces into existing platforms. The company supports the ongoing payment technology needs. They keep the integrations functional after launch. The agency covers both the custom build and the connection work.
Key Highlights:
- Enterprise payment technology
- Custom gateway development
- System integrations
Services:
- Custom gateway building
- Integration work
- Payment technology support
- Platform linking
Contact Information:
- Website: www.mercdev.com
- Phone: +1 305 767 2434
- Email: [email protected]
- Address: 901 SW Martin Downs Blvd, Suite 321, Palm City, FL 34990, USA
- LinkedIn: www.linkedin.com/company/mercury-development-llc
- Facebook: www.facebook.com/mercdev
- Twitter: x.com/mercdev
- Instagram: www.instagram.com/mercdev
Conclusion
Payment gateway integration companies in the USA handle the connections that let businesses take cards, wallets, and other methods through their sites and apps. They cover the setup work, keep the flows secure, and deal with the usual compliance pieces so transactions go through without extra friction.
The range is wide. Some lean toward straightforward checkout links and plugins. Others take on more involved routing, recurring billing, or marketplace splits. It often comes down to what already exists on the business side and which payment options need to sit together.
Picking among them usually means looking at compatibility, the methods that have to be supported, and whether the integration stays stable once it’s live. There’s no single match that works for every setup.