Backend development isn’t the flashiest part of software, but it’s the foundation that keeps everything running smoothly. Whether it’s managing databases, building APIs, or making sure an app scales without breaking, the backend is where the heavy lifting happens. In the USA, there’s a wide range of companies that specialize in this space - from small teams that handle niche projects to large firms powering enterprise systems.

If you’re exploring backend partners, the landscape can feel a bit overwhelming. Each company brings its own approach, whether it’s deep expertise in cloud-native systems, a focus on speed and performance, or long experience in regulated industries. This article takes a closer look at some of the most notable backend development companies across the country, giving you a sense of what they offer and how they might fit your project.

1. OSKI Solutions

At OSKI Solutions, we focus on designing and developing backend solutions that fit real business needs. We work with enterprises and startups, building software that can scale and adapt as requirements grow. Our team uses technologies like .NET, Node.js, PHP, and cloud platforms such as AWS and Azure to create systems that handle complex processes with reliability. We also connect backend infrastructure with web and mobile applications, making sure the whole environment works as one.

We approach backend development as a structured process. Each step, from exploration and planning to testing and implementation, is aimed at keeping the solution consistent and maintainable. OSKI also provides support after deployment, helping businesses adjust and evolve their systems over time. By combining experience in industries such as e-commerce, logistics, healthcare, and finance, we make sure our backend solutions align with practical goals and long-term operations.

Key Highlights:

• Backend development with .NET, Node.js, PHP, C#.
• Cloud expertise with AWS, Azure, Docker, Kubernetes.
• Integration with web, mobile, and third-party systems.
• Experience across e-commerce, healthcare, finance, logistics.
• Focus on scalability, automation, and operational efficiency.

Services:

• Custom backend software development.
• API design and integration.
• Cloud migration and DevOps support.
• Database architecture and optimization.
• Legacy system modernization.
• Ongoing backend support and maintenance.

Contact information:

• Website: oski.site
• E-mail: contact@oski.site
• LinkedIn: www.linkedin.com/company/oski-solutions
• Address: Kaupmehe tn 7-120, Tallinn, Estonia
• Phone: +48571282759

2. TechMagic

TechMagic works on building backend systems that keep applications stable, secure, and scalable. As one of the backend development companies in the USA, they provide businesses with the foundation their products rely on, whether that’s for a startup bringing an MVP to market or for an enterprise modernizing its infrastructure. They design architecture, implement server logic, and make sure databases and APIs perform as expected.

Their work is not limited to a single industry. TechMagic has experience in healthcare, fintech, martech, and enterprise SaaS, and their teams cover the whole process from discovery to long-term maintenance. Using technologies like Node.js, Java, .NET, Python, and PHP, combined with AWS, Azure, and Google Cloud, they adapt backend solutions to fit the context of each project. This combination of technical depth and structured workflow helps them align backend development with real business needs.

Key Highlights:

• Experience with healthcare, fintech, martech, and enterprise SaaS.
• Backend development company presence in USA, UK, Poland, and Ukraine.
• Strong use of cloud platforms such as AWS, Azure, and Google Cloud.
• Dedicated teams working with agile practices and structured workflows.

Services:

• Custom backend development.
• Mobile app backend development.
• Web app backend development.
• API design and integration.
• Cloud backend and infrastructure.
• Server architecture and modernization.
• Backend audits and security.

Contact information:

• Website: www.techmagic.co
• E-mail: hello@techmagic.co
• Facebook: www.facebook.com/TechMagic.co
• LinkedIn: www.linkedin.com/company/techmagic
• Instagram: www.instagram.com/techmagic
• Address: 27 Whitehall Street, 5th Fl New York, NY 10004

3. Devox Software

Devox Software focuses on backend development services that support scalable and secure digital products. As one of the backend development companies in the USA, they work with businesses that need reliable architecture, database design, and integrations that don’t break under pressure. Their teams step in when internal capacity is limited or when existing systems need modernization, building environments that sustain growth and performance.

They apply a structured process covering architecture, cloud infrastructure, CI/CD pipelines, and backend logic. Their engineers work with Python, Java, .NET, Node.js, and Go, combined with cloud platforms like AWS, Azure, and Google Cloud. Devox Software also supports companies with consulting, backend audits, and refactoring, aiming to make backend systems more resilient and adaptable. Their approach connects backend development to practical outcomes by focusing on performance, security, and integration quality.

Key Highlights:

• Backend development company with presence in USA, Poland, and Ukraine.
• Use of modern technologies such as Python, Java, Node.js, .NET, Go, and Rust.
• Experience with scalable architectures including microservices and serverless.
• Structured backend process covering architecture, testing, and integrations.
• Focus on security with encryption, monitoring, and compliance practices.

Services:

• Custom backend development.
• Web application backend.
• Mobile app backend.
• Cloud backend solutions.
• API development and integration.
• Backend refactoring and modernization.
• Backend testing and consulting.

Contact information:

• Website: devoxsoftware.com
• E-mail: info@devoxsoftware.com
• Facebook: www.facebook.com/devoxsoftware
• LinkedIn: www.linkedin.com/company/devox-software
• Address: 14 NE 1st Avenue, 33132, Miami, FL

4. BairesDev

BairesDev provides backend development services that focus on building solid infrastructure for web and mobile applications. As part of backend development companies in the USA, they design and maintain server-side systems that connect with the client side while keeping performance and security in mind. Their teams work with databases, APIs, and integrations, making sure that applications run smoothly across different platforms.

They also support enterprises that need scalable backend environments and compliance-ready solutions. By using tools like AWS, Azure, MySQL, MongoDB, Django, and Express.js, they create systems capable of handling large amounts of data and complex processes. Their services extend to backend testing, CRM development, and cloud solutions, allowing businesses to adapt as operations grow and technology changes.

Key Highlights:

• Backend development company with presence in the USA.
• Experience working with enterprise systems and large data volumes.
• Use of frameworks and languages including Python, Java, Ruby, and Django.
• Strong focus on cloud backend solutions with AWS and Azure.
• Involvement in custom CRM systems and API integrations.

Services:

• Custom backend development.
• Enterprise backend services.
• Backend API development and integration.
• Cloud backend solutions.
• Backend CRM development.
• Backend testing and quality assurance.

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
• Phone: +1 (408) 478-2739

5. Softeq

Softeq develops backend solutions that support mobile, web, desktop, and IoT systems. As part of backend development companies in the USA, they design server-side systems that are fault-tolerant, scalable, and adaptable to different business needs. Their teams work on both new projects and legacy system modernization, focusing on creating stable foundations that can integrate with third-party services and scale as requirements change.

They apply a wide technology stack that includes .NET, Java, Node.js, and cloud platforms, ensuring flexibility for different industries and use cases. Softeq also handles specialized areas such as IoT backends, mobile app infrastructure, and technical audits. By combining backend logic, cloud architecture, and data management, they help companies move from fragmented systems toward unified, maintainable backend environments.

Key Highlights:

• Backend development company with headquarters in Houston, USA.
• Work across mobile, web, desktop, and IoT backends.
• Experience in legacy system modernization and technical audits.
• Use of .NET, Java, Node.js, and MongoDB for backend solutions.
• Global delivery centers in Europe and Latin America.

Services:

• Backend application development.
• Cloud backend solutions and migration.
• Technical backend audit.
• Mobile app backend development.
• IoT backend systems.
• Third-party service integration.

Contact information:

• Website: www.softeq.com
• Facebook: www.facebook.com/softeq
• Twitter: x.com/Softeq
• LinkedIn: www.linkedin.com/company/softeq
• Instagram: www.instagram.com/softeq
• Address: 1155 Dairy Ashford Rd., Suite 125 Houston, Texas 77079 USA
• Phone: +1 888 552-5001

6. MojoTech

MojoTech delivers backend development services as part of their broader software engineering work in the USA. They focus on building reliable systems that connect with frontend applications while supporting scalability, security, and integration across different environments. Their engineers apply established coding practices and emphasize code quality, balancing correctness, clarity, and maintainability in backend projects.

They combine backend expertise with areas like product development, app modernization, and cloud infrastructure. MojoTech also integrates AI tools into their development workflows, using automation for testing, debugging, and documentation. This mix of human engineering skill and AI-driven processes allows them to streamline backend work for businesses in industries such as finance, healthcare, retail, and energy.

Key Highlights:

• Backend development company with offices in several US cities including New York and Boston.
• Emphasis on code quality principles such as correctness, clarity, and conciseness.
• Integration of AI tools for debugging, testing, and documentation.
• Experience across industries like finance, healthcare, retail, and utilities.
• Focus on both backend modernization and new product development.

Services:

• Custom backend development.
• Cloud and app modernization.
• API and database integration.
• Mobile app backend development.
• AI-powered backend engineering support.
• Data engineering and analytics.
• IoT backend systems.

Contact information:

• Website: www.mojotech.com
• Twitter: x.com/mojotech
• LinkedIn: www.linkedin.com/company/mojotech
• Address: 56 Exchange Terrace, Suite 210, Providence, RI 02903

7. Innowise

Innowise delivers backend development services that address performance, scalability, and integration challenges. As one of the backend development companies in the USA, they focus on creating server-side systems that can support enterprises, e-commerce platforms, and SaaS products. Their work covers consulting, architecture design, refactoring, and full-cycle backend application development. By applying modern frameworks and cloud services, they ensure that systems remain secure and adaptable to new demands.

They also handle specialized solutions such as CRM, CMS, and IoT backends. Innowise builds APIs for data exchange, payment integrations for e-commerce, and distributed systems that reduce downtime. Their teams use technologies like .NET, Java, Node.js, and cloud platforms to support complex workloads. With attention to technical audits, cloud migration, and microservices architecture, they help companies maintain reliable backend environments that fit business growth.

Key Highlights:

• Backend development company with presence in the USA.
• Work across enterprise, e-commerce, SaaS, and IoT backends.
• Expertise in consulting, audits, and backend refactoring.
• Strong focus on microservices, APIs, and distributed systems.
• Use of .NET, Java, Node.js, and cloud technologies.

Services:

• Backend consulting and technical audits.
• Backend architecture development.
• Backend application development.
• Microservices and API integration.
• CRM and CMS backend solutions.
• E-commerce backend and payment systems.
• SaaS platform development.
• IoT backend systems.

Contact information:

• Website: innowise.com
• E-mail: contact@innowise.com
• Twitter: x.com/innowisegroup
• LinkedIn: www.linkedin.com/company/innowise-group
• Address: FL 33702, 7901 4th St N STE 300, St. Petersburg
• Phone: +1 917 267 7727

8. CMARIX

CMARIX provides backend development services across USA and other regions, focusing on building reliable server-side systems for web, mobile, and enterprise applications. Their work covers modernizing outdated platforms, creating custom APIs, and delivering backends that balance speed, scalability, and security. With experience in multiple industries, they design solutions that connect applications, manage data effectively, and integrate with existing infrastructures.

Their teams handle backend projects ranging from CRM and ERP systems to e-commerce platforms and mobile applications. They use frameworks and languages like Node.js, ASP.NET, Python, PHP, and .NET Core to construct backends that support growing user demands. CMARIX positions backend development as a foundation for business systems, ensuring that performance, integration, and data management work smoothly together.

Key Highlights:

• Backend development company active in USA and India.
• Focus on upgrading legacy systems and building new backends.
• Work across industries including healthcare, finance, and e-commerce.
• Experience in CRM, ERP, and API-based solutions.
• Use of multiple backend technologies and frameworks.

Services:

• Backend web development.
• Mobile app backend development.
• Node.js development.
• ASP.NET and .NET Core backend solutions.
• Python development.
• PHP backend development.
• Custom API development and integration.
• Backend modernization and maintenance.

Contact information:

• Website: www.cmarix.com
• E-mail: biz@cmarix.com
• Facebook: www.facebook.com/cmarixinfotech
• Twitter: x.com/cmarixinfotech
• Instagram: www.instagram.com/cmarixinfotech
• Address: 32572 Miller Ct. Temecula, CA 92592
• Phone: +1 415-704-4242

9. Technext

Technext is part of backend development companies in the USA that provide server-side solutions for startups, scaleups, and enterprises. They focus on writing efficient code, building scalable systems, and applying strong security practices. Their developers often work with APIs, databases, and cloud-hosted environments, ensuring that backend structures remain reliable and adaptable as projects evolve. With experience in staff augmentation, dedicated teams, and full custom projects, Technext offers flexible engagement models that fit different business needs.

They emphasize a consistent development process built on planning, code quality, and testing from the early stages. Alongside backend engineering, Technext also manages project transparency with clear billing and reporting, which makes collaboration straightforward for clients. Their projects range from fintech platforms and e-commerce systems to education technology and CRM solutions, reflecting broad experience across industries where backend performance is central.

Key Highlights:

• Backend development company with registered presence in USA and Bangladesh.
• Focus on efficient, scalable, and secure backend systems.
• Flexible engagement models including dedicated teams and staff augmentation.
• Proven experience in fintech, travel, education, and CRM solutions.
• Transparent work process with ongoing client involvement.

Services:

• Backend application development.
• API development and integration.
• Node.js and JavaScript backend solutions.
• Cloud backend hosting and maintenance.
• Backend refactoring and modernization.
• Staff augmentation and dedicated backend teams.
• Custom backend project delivery.

Contact information:

• Website: technext.it
• E-mail: reza@technext.it
• Facebook: www.facebook.com/TechnextLimited
• Twitter: x.com/TechnextLimited
• LinkedIn: www.linkedin.com/company/technextlimited
• Instagram: www.instagram.com/technext.limited
• Address: 2810 N Church St, PMB 38894 Wilmington, DE, US 19802-4447
• Phone: +1 302 433 6002

10. Andersen

Andersen provides backend development services as part of their wider software engineering work in the USA and abroad. Their teams handle complex backend projects that range from custom application development to integrating business logic with large SaaS platforms. They emphasize scalability, security, and adaptability, ensuring that backend systems are able to meet the demands of enterprises across industries such as healthcare, finance, logistics, and retail.

They work with a wide stack of technologies including Java, .NET, Python, Node, PHP, and Golang. Andersen’s engineers also focus on extending existing systems by building modules and APIs that add functionality to platforms like Salesforce or SAP. With experience in audits, architecture design, and modernization projects, they position backend development as a critical foundation for managing data, performance, and integration at scale.

Key Highlights:

• Backend development company with presence in the USA.
• Experience in large-scale enterprise and SaaS backend projects.
• Strong focus on scalability, security, and integration.
• Use of multiple backend languages and frameworks including Java, .NET, Python, and Node.
• Work across industries such as finance, healthcare, logistics, and retail.

Services:

• Custom backend application development.
• Backend architecture design and modernization.
• API development and integration.
• SaaS platform module and component development.
• Database creation and management.
• Cloud backend engineering.
• Backend audits and consulting.

Contact information:

• Website: andersenlab.com
• E-mail: vn@andersenlab.com
• Facebook: www.facebook.com/AndersenSoftwareDev
• Twitter: x.com/AndersenLabs
• LinkedIn: www.linkedin.com/company/andersen-softwaredev
• Instagram: www.instagram.com/andersen.global
• Address: 7300 State Highway 121, Suite 300, Dallas, Texas 75070
• Phone: +1 910 916 4176

11. MindInventory

MindInventory is one of the backend development companies in the USA that works on building server-side systems for web, mobile, and enterprise applications. Their teams handle both new development and modernization of existing systems, with attention to scalability, security, and integration. They create backends that manage data, user authentication, and performance while also supporting third-party APIs and cloud-based infrastructure.

They also cover projects involving microservices, serverless architecture, and system integrations. MindInventory develops solutions for industries such as healthcare, finance, real estate, e-commerce, and education. Their backend expertise extends across technologies like Python, Node.js, Golang, Laravel, and PHP, allowing them to adapt to different business and technical requirements.

Key Highlights:

• Backend development company with operations in the USA.
• Focus on scalable and secure server-side applications.
• Experience in modernization of legacy systems and system integrations.
• Expertise in microservices and serverless architectures.
• Work across healthcare, finance, real estate, e-commerce, and more.

Services:

• Custom backend development.
• Web app backend development.
• Mobile app backend development.
• API development and integration.
• Legacy system modernization.
• Microservices architecture.
• Serverless architecture.
• Scalable storage and database solutions.
• App performance tuning and load balancing.

Contact information:

• Website: www.mindinventory.com
• E-mail: sales@mindinventory.com
• Facebook: www.facebook.com/Mindiventory
• Twitter: x.com/Mindinventory
• LinkedIn: www.linkedin.com/company/mindinventory
• Address: 9341 Ellis Way, Strongsville, Ohio 44136, USA
• Phone: +1-216-609-0691

12. Rootstack

Rootstack is part of backend development companies in the USA that provide services for building secure, scalable, and efficient server-side systems. Their teams work on backend architectures that support web platforms, business applications, and digital products. They design solutions with attention to performance, security, and integration, aiming to ensure that systems remain stable and adaptable as companies grow.

They cover projects such as API development, database management, and backend modernization. Rootstack uses languages and frameworks like Node.js, Python, Java, and .NET Core, along with tools for data handling and authentication. Their portfolio includes work for industries ranging from retail and finance to government projects, where backend reliability plays a central role in keeping applications functional and accessible.

Key Highlights:

• Backend development company with offices in USA and Latin America.
• Focus on customized backend architectures for digital platforms.
• Experience with high-performance and secure backend systems.
• Work across industries such as retail, finance, and government.
• Technology stack includes Node.js, Python, Java, .NET Core, and Go.

Services:

• API development and integration.
• Backend architecture design.
• Database design and optimization.
• Security and authentication implementation.
• Legacy system improvements and modernization.
• Multiplatform backend support.
• Backend consulting and audits.

Contact information:

• Website: rootstack.com
• E-mail: sales@rootstack.com
• Facebook: www.facebook.com/rootstack
• Twitter: x.com/rootstack
• LinkedIn: www.linkedin.com/company/rootstack
• Instagram: www.instagram.com/rootstack
• Address: Dobie Center, 2021 Guadalupe Street,Suite 260, Austin, Texas, 78705, USA
• Phone: +1 215-883-4359

13. Velvetech

Velvetech is part of backend development companies in the USA that design and implement server-side systems for different industries. Their teams handle projects involving on-premise and cloud-based architectures, making sure that software runs reliably under changing business demands. They emphasize security, scalability, and performance when building backends for web platforms, mobile applications, and enterprise systems.

Velvetech also supports companies that need backend for IoT, SaaS, or blockchain-based projects. They provide audits and modernization for existing systems, helping to update infrastructure, codebases, and integrations. Their approach covers planning, design, development, and long-term maintenance, ensuring backend layers stay aligned with technical and business goals.

Key Highlights:

• Backend development company with offices in the USA.
• Experience in custom backend systems for mobile, web, and enterprise.
• Work includes backend for IoT, SaaS, and blockchain projects.
• Strong focus on performance, scalability, and data security.
• Expertise across multiple industries such as healthcare, finance, logistics, and manufacturing.

Services:

• Custom backend development.
• Web backend design and implementation.
• Mobile backend development.
• Cloud backend solutions.
• API development and integration.
• Backend audits and modernization.
• Backend for IoT, SaaS, and blockchain systems.
• Ongoing backend support and maintenance.

Contact information:

• Website: www.velvetech.com
• E-mail: sales@velvetech.com
• Facebook: www.facebook.com/velvetech
• Twitter: x.com/velvetech
• LinkedIn: www.linkedin.com/company/velvetech
• Address: 18101 Collins Ave, Suite 1208, Sunny Isles Beach, FL 33160
• Phone: +1 (847) 559-0864

14. Zazz

Zazz is included among backend development companies in the USA, offering services that focus on building scalable and efficient server-side systems. Their teams apply languages like Node.js, Python, Ruby, and Go, combining these with frameworks and database technologies to create solutions that support enterprise-level applications. They emphasize modularity and system performance, using tools such as Docker and Kubernetes to support microservices and simplify maintenance.

Zazz also works with companies that need cloud integration, API development, and real-time data systems. Their projects include industries ranging from healthcare and finance to retail and logistics. By handling database management, legacy upgrades, and performance tuning, they help businesses maintain reliability while preparing for future growth.

Key Highlights:

• Backend development company with offices in the USA and global presence.
• Use of Node.js, Python, Ruby, Go, and Scala for backend solutions.
• Work includes microservices, real-time systems, and serverless architecture.
• Cloud integration with AWS, Azure, and Google Cloud.
• Industry experience in healthcare, finance, retail, and logistics.

Services:

• Custom backend development.
• API development and management.
• Cloud backend integration.
• Database design and management.
• Real-time systems development.
• Serverless backend solutions.
• Legacy system upgrades.
• Performance tuning and optimization.
• DevOps support and CI/CD pipelines.

Contact information:

• Website: www.zazz.io
• Facebook: www.facebook.com/Zazz.Official
• Twitter: x.com/Zazz_Official
• LinkedIn: www.linkedin.com/company/zazz-io
• Instagram: www.instagram.com/zazz.io

15. Kellton

Kellton is one of the backend development companies in the USA that provides server-side solutions for enterprises across different sectors. Their teams focus on building and maintaining backend systems that handle application logic, data flow, and integrations. They design architectures that operate on-premise or in cloud environments, aiming to keep applications stable, secure, and adaptable to evolving business needs.

Kellton also works with organizations that need to modernize legacy systems, migrate to cloud platforms, or extend existing architectures. They apply methodologies such as Agile, DevOps, and test automation to streamline delivery and support. With experience in multiple technologies, they develop backend layers that integrate with frontend interfaces while maintaining consistency, scalability, and long-term performance.

Key Highlights:

• Backend development company with presence in USA and global markets.
• Expertise in cloud migration, legacy modernization, and backend architecture.
• Work with Agile, DevOps, and automation to support delivery.
• Focus on improving backend performance without disrupting frontend systems.
• Experience across multiple industries and enterprise environments.

Services:

• Custom backend development.
• Node.js backend solutions.
• Java and J2EE backend systems.
• PHP and Python backend applications.
• Microsoft .NET development.
• Ruby on Rails backend services.
• Cloud backend migration and integration.
• Backend audits and modernization.

Contact information:

• Website: www.kellton.com
• E-mail: ask@kellton.com
• Facebook: www.facebook.com/Kellton
• Twitter: x.com/kelltontech
• LinkedIn: www.linkedin.com/company/kellton
• Phone: +1-844-469-8900

16. LogicRays

LogicRays is part of the group of backend development companies in the USA that build server-side systems for web and mobile applications. They design backends that handle data, manage integrations, and keep applications running consistently across different platforms. Their teams rely on common frameworks and coding practices to ensure systems remain functional, scalable, and secure over time.

LogicRays also focuses on connecting applications with APIs, supporting cloud deployments, and working with businesses that need backend systems tailored for mobile or web environments. They provide ongoing support and maintenance, making sure solutions continue to function as projects scale or change direction. With experience across multiple technologies, they offer services that cover both new development and modernization of existing systems.

Key Highlights:

• Backend development company with operations in USA and other regions.
• Work across web, mobile, and cloud environments.
• Use frameworks like Node.js, PHP, Python, Symfony, and Golang.
• Provide full-cycle development with deployment and support.
• Handle backend integrations and API-driven systems.

Services:

• Backend development for web applications.
• Backend solutions for mobile applications.
• API development and integration.
• Cloud backend development and deployment.
• Backend modernization and support.
• Full-cycle backend project delivery.

Contact information:

• Website: www.logicrays.com
• E-mail: enquiry@logicrays.com
• Facebook: www.facebook.com/LogicRaysTech
• Twitter: x.com/LogicRaysTech
• LinkedIn: www.linkedin.com/company/logicrays
• Instagram: www.instagram.com/logicraystech
• Address: 89, Trento St, Iselin, New Jersey, 08830
• Phone: +1 732 762 7353

17. Full Scale

Full Scale is included among backend development companies in the USA that support both startups and established businesses with server-side development. Their work covers backend systems for web and mobile applications, focusing on scalability, data handling, and integrations. Teams at Full Scale are familiar with common programming languages such as Java, Python, Node.js, and PHP, and they use frameworks like Spring, Django, Express.js, and Laravel to deliver backend architectures.

In addition to new builds, Full Scale also works on backend optimization and long-term support. They design databases, create APIs, and handle server-side logic needed for complex applications. Their approach includes performance tuning, system maintenance, and security updates, helping companies keep backend systems functional as traffic and requirements change.

Key Highlights:

• Backend development company with presence in the USA.
• Work with multiple server-side languages and frameworks.
• Provide backend systems for both web and mobile applications.
• Experience with API design, database development, and cloud setups.
• Offer optimization and ongoing support services.

Services:

• Web application backend development.
• Mobile application backend development.
• Custom API development and integration.
• Database design and backend data management.
• Server-side application development.
• Backend performance optimization.
• Backend maintenance and support.

Contact information:

• Website: fullscale.io
• Facebook: www.facebook.com/fullscalekc
• Twitter: x.com/fullscalekc
• LinkedIn: www.linkedin.com/company/fullscale-io 
• Instagram: www.instagram.com/fullscalekc

18. WPWeb Infotech

WPWeb Infotech is one of the backend development companies in the USA that works with businesses across industries to build server-side systems for web and mobile solutions. Their approach centers on creating stable, scalable backends while also handling integrations and data management. With experience in PHP, Laravel, .NET Core, Node.js, and other technologies, WPWeb Infotech helps companies set up foundations that can adapt as projects expand.

They also focus on migration, support, and maintenance, ensuring existing systems are kept up to date without disrupting functionality. The company delivers backend solutions for eCommerce, healthcare, media, and other sectors, combining custom builds with frameworks that allow for long-term growth. By applying Agile and DevOps practices, WPWeb Infotech aligns backend development with practical business needs.

Key Highlights:

• Backend development company active in the USA.
• Works with both startups and enterprises on scalable solutions.
• Uses a wide range of backend frameworks and cloud setups.
• Provides migration, maintenance, and support for existing systems.
• Applies Agile and DevOps approaches in backend delivery.

Services:

• Backend web development.
• Web application backend development.
• API development and integration.
• Maintenance and support.
• Custom CRM backend development.
• Backend migration services.
• Enterprise backend services.
• Application admin backend development.
• Data storage backend applications.

Contact information:

• Website: wpwebinfotech.com
• E-mail: sales@wpwebinfotech.com
• Facebook: www.facebook.com/wpwebinfotech
• Twitter: x.com/wpwebinfotech
• LinkedIn: www.linkedin.com/company/wpwebinfotech
• Instagram: www.instagram.com/wpwebinfotech
• Address: 131 Sweet Alyssum dr Ladson, South Carolina, 29456, USA
• Phone: +1 (857) 380 9517

19. Belitsoft

Belitsoft is part of backend development companies in the USA that focus on building server-side systems for web and mobile applications. Their teams work on creating reliable backends that handle business logic, database operations, and integrations between different services. With experience in distributed systems and microservices, Belitsoft develops solutions that support scalability and long-term stability.

They also provide database management, API integration, cloud migration, and server-side scripting. Belitsoft works across multiple programming languages such as .NET, Java, Python, Node.js, and PHP, offering tailored backend solutions for different industries including healthcare and finance. Their role often extends beyond initial development, covering modernization and ongoing support to keep systems efficient and secure.

Key Highlights:

• Backend development company active in the USA.
• Build and maintain distributed backend systems.
• Work with microservices and cloud environments.
• Experience with .NET, Java, Python, Node.js, and PHP.
• Provide modernization and support for existing backends.

Services:

• Web and mobile app backend development.
• Database development and optimization.
• API programming and integration.
• Server-side scripting.
• Cloud migration and backend re-engineering.
• Software testing and performance checks.
• Backend modernization for legacy systems.

Contact information:

• Website: belitsoft.com
• E-mail: info@belitsoft.com
• Facebook: www.facebook.com/Belitsoft
• Twitter: x.com/BelitsoftCom
• LinkedIn: www.linkedin.com/company/belitsoft-llc
• Phone: +1 (917) 410-57-57

20. SumatoSoft

SumatoSoft is one of the backend development companies in the USA with a focus on building scalable server-side solutions for startups, enterprises, and mid-size businesses. They create backend systems that handle business logic, data processing, and integrations, keeping performance and security at the center of their work. Their teams design architectures that can support SaaS, IoT platforms, ERP systems, and other applications that require strong server-side operations.

They also work on cloud deployments, microservices, and database optimization to make sure applications can adapt as traffic and user needs grow. SumatoSoft’s developers use languages like Ruby, Python, and Node.js, along with tools such as PostgreSQL, MongoDB, and cloud services from AWS or Azure. Their approach often combines backend engineering with testing, maintenance, and system administration, giving businesses in the USA and beyond long-term backend support.

Key Highlights:

• Backend development company with presence in the USA.
• Build scalable backends for SaaS, IoT, ERP, and web apps.
• Expertise in Ruby, Python, Node.js, and database design.
• Support for cloud platforms such as AWS, Azure, and Google Cloud.
• Provide both backend-only and full-cycle software development.

Services:

• Backend development for web and mobile apps.
• SaaS and ERP system backends.
• API development and integration.
• Microservices architecture.
• Database design, migration, and optimization.
• Cloud deployment and server management.
• Performance testing and debugging.
• Ongoing maintenance and DevOps support.

Contact information:

• Website: sumatosoft.com
• E-mail: info@sumatosoft.com
• Facebook: www.facebook.com/sumatosoft
• Twitter: x.com/SumatoSoft
• LinkedIn: www.linkedin.com/company/sumatosoft 
• Address: One Boston Place, Suite 2602, Boston, MA 02108, United States
• Phone: +18572390848

21. Bacancy

Bacancy is positioned among backend development companies in the USA through its strong focus on DevOps implementation and cloud-oriented backend services. Their work centers on making software delivery faster, more reliable, and easier to manage, combining automation with flexible infrastructure choices. By helping businesses adopt practices such as CI/CD pipelines, containerization, and cloud deployments, Bacancy ensures backend systems can scale and adapt without slowing down operations.

Their teams apply a structured approach to backend and DevOps, whether it’s designing deployment workflows, managing IT infrastructure, or optimizing system performance across AWS, Azure, and Google Cloud. They also cover monitoring, release management, and security integration, giving companies a foundation that supports long-term backend stability. This mix of backend engineering and operational expertise connects directly with the broader landscape of backend development companies in the USA.

Key Highlights:

• Recognized for DevOps-focused backend development in the USA.
• Experience with AWS, Azure, and Google Cloud environments.
• Emphasis on CI/CD, automation, and release management.
• Strong capabilities in containerization and orchestration.
• Ongoing infrastructure monitoring and optimization.

Services:

• DevOps implementation planning and consulting.
• CI/CD pipeline setup and automation.
• Cloud deployment and migration on AWS, Azure, and Google Cloud.
• Containerization and orchestration with Kubernetes and Docker.
• IT infrastructure management and monitoring.
• DevOps release management.
• Security integration within DevOps workflows.
• Continuous backend maintenance and support.

Contact information:

• Website: www.bacancytechnology.com 
• E-mail: solutions@bacancy.com
• Facebook: www.facebook.com/BacancyTechnologyLimited
• Twitter: x.com/bacancyTech
• LinkedIn: www.linkedin.com/company/bacancy-technology
• Instagram: www.instagram.com/bacancytechnology
• Address: 535 Mission St 14th floor, SanFrancisco, CA94105

Conclusion

Finding the right backend development company in the USA isn’t about chasing buzzwords or the flashiest tech stack. It comes down to who can actually help you keep your systems stable, secure, and flexible enough to grow with your needs. Some teams lean heavily into cloud expertise, others bring long experience with complex integrations, and many combine both.

What matters is matching their strengths with where your business is heading. If your focus is on modernizing legacy systems, look for a partner that has done it before without breaking what already works. If you’re scaling quickly, cloud-native solutions and solid database design might carry more weight. Either way, choosing a company with a clear process, transparent communication, and the patience to adapt along the way will save a lot of time and stress.

Backend work isn’t always visible to end users, but it’s the backbone of every digital product. Picking the right people to build and maintain it can make the difference between a system that quietly supports