Best Backend Development Companies in the USA

3 min
Doelstellingen die we hebben bereikt:
Het aantal jaarlijks verworven klanten van de Amerikaanse Software Development Company is toegenomen door 400% *
Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
Het aantal jaarlijks verworven klanten van de Amerikaanse Software Development Company is toegenomen door 400% *
Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
Het aantal jaarlijks verworven klanten van de Amerikaanse Software Development Company is toegenomen door 400% *
Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
Het aantal jaarlijks verworven klanten van de Amerikaanse Software Development Company is toegenomen door 400% *
Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
Het aantal jaarlijks verworven klanten van de Amerikaanse Software Development Company is toegenomen door 400% *
Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
Het aantal jaarlijks verworven klanten van de Amerikaanse Software Development Company is toegenomen door 400% *
Meer dan 50 zakelijke kansen gegenereerd voor Britse architectuur- en ontwerpdienstenaanbieder *
Kosten per lead ruim zes keer verlaagd voor Dutch Event Technology Company *
Bereikte 13.000 doelgroepen en genereerde 400 kansen voor Swiss Sports Tech Provider *
Conversiepercentage van Oekraïens IT-bedrijf verhoogd met 53,6% *
Max Mykal
Co-Founder @ Lengreo

Invoering

Finding the right backend development company can be a game changer for your project. Whether you’re building a web app, mobile app, or complex platform, a solid backend keeps everything running smoothly behind the scenes. In this guide, we’re rounding up the top backend development companies in the USA that know how to build secure, fast, and scalable systems – so you don’t have to stress about what’s happening under the hood.

1. LenGreo

1. LenGreo

At LenGreo, we focus on building reliable backend systems that power smooth and scalable digital experiences. Our team works closely with clients to understand their business goals and user needs, shaping solutions that are flexible and built to last. From planning to deployment, we aim to make the development process straightforward and transparent. LenGreo serves a growing number of American clients, helping them bring robust digital products to market with speed and precision.

We follow a structured workflow that starts with discovery workshops to define clear objectives. Then we move into ideation and wireframing to visualize the end product. Development follows agile principles, allowing us to adapt as we go while keeping timelines and budgets on track. Once deployed, we continue refining and maintaining the system based on user feedback and performance metrics.

Our backend development work is supported by a full team that includes developers, designers, analysts, QA engineers, and DevOps specialists. We collaborate at every stage to make sure the backend is secure, scalable, and integrated smoothly with the overall application. Whether it’s a custom web app, a hybrid mobile app, or a cloud-native system, we’ve built the foundation to support it.

 

Hoofdzaken:

  • End-to-end project support from planning to post-launch
  • Clear, structured workflow with defined development stages
  • Agile development process for flexibility and efficiency
  • Team-based collaboration across design, development, and QA
  • Focus on long-term scalability and system security

 

Services:

  • Ontwikkeling van webapplicaties op maat
  • API development and integration
  • Hybrid mobile app development
  • Web design and UI/UX
  • Cloud-native system development
  • Tech stack modernization
  • Manual and automated quality assurance
  • Ongoing maintenance and support

 

Contacts:

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2. Devox Software

2. Devox Software

Devox Software offers back-end development services designed to support scalable, secure, and efficient digital products. The company focuses on building reliable server-side solutions that align with business logic and operational requirements. Their approach includes customizing each project to fit specific client needs and integrating various databases, APIs, and third-party services as needed.

The development process includes attention to architecture planning, code quality, and ongoing support. Devox Software emphasizes close cooperation with clients during all stages of development, from initial planning to final deployment. Their engineers work with a variety of modern technologies to deliver functional and maintainable back-end systems.

 

Hoofdzaken:

  • Emphasis on customized back-end architecture
  • Focus on scalable and maintainable code
  • Integration with third-party APIs and services
  • Ongoing support and collaboration throughout development

 

Services:

  • Back-end development
  • Cloud-based solution development
  • API development and integration
  • Database design and management
  • Onderhoud en ondersteuning

 

Contacts:

  • Website: devoxsoftware.com
  • E-mail: info@devoxsoftware.com
  • Facebook: www.facebook.com/devoxsoftware
  • Twitter: x.com/DevoxSoftware
  • LinkedIn: www.linkedin.com/company/devox-software
  • Address: 17000 N Bay Rd, unit 508, 33160, Sunny Isles Beach, FL

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    3. Innowise

    3. Innowise

    Innowise is an international software development company established in 2007, offering a comprehensive range of IT services. The company specializes in backend development, focusing on building scalable and secure systems tailored to various business needs. Their approach emphasizes modern architecture and integration capabilities to support diverse digital solutions .

    The company’s backend development services are designed to address complex technical challenges, ensuring efficient data processing and system reliability. Innowise’s team works closely with clients to understand their specific requirements, delivering customized solutions that align with their operational goals .

     

    Hoofdzaken:

    • Provides backend development services with a focus on scalability and security.
    • Offers expertise in modern architectural designs and system integrations.
    • Tailors solutions to meet specific business requirements and objectives.

     

    Services:

    • Backend consulting and technical audits.
    • Development of backend architectures and microservices.
    • API development and integration.
    • ETL (Extract, Transform, Load) engineering.
    • Backend system refactoring.
    • Provision of dedicated backend development teams.

     

    Contacts:

    • 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
    • Phone: +1 917 267 7727
    4. TechMagic

    4. TechMagic

    TechMagic is a software development company founded in 2014, with its main office in Lviv, Ukraine, and additional locations in Kraków, Poland, New York, USA, and London, UK. The company specializes in providing end-to-end software development services, catering to clients across various industries, including healthcare, finance, marketing, and human resources.

    The company’s expertise encompasses a wide range of technologies, including JavaScript, Node.js, TypeScript, Angular, React, Vue.js, GraphQL, AWS, Serverless, Firebase, and native mobile development with iOS Swift, Objective-C, Java Android, PHP, .NET, and Kotlin.

     

    Hoofdzaken:

    • Offers full-cycle software development services, from ideation and planning to deployment and maintenance.
    • Focuses on building dedicated teams tailored to client needs.
    • Emphasizes continuous learning and professional development through initiatives like TechMagic Academy.
    • Maintains partnerships with global companies to enhance expertise and knowledge.
    • Recognized as an official AWS Certified Consulting Partner since 2017.

     

    Services:

    • Custom backend development
    • Mobile app backend development
    • Web app backend development
    • Custom server development
    • Cloud backend solutions
    • API development
    • Architecture and infrastructure design
    • Technical backend audit
    • Legacy backend modernization

     

    Contacts:

    • Website: www.techmagic.co
    • E-mail: hello@techmagic.co
    • Facebook: www.facebook.com/TechMagic.co
    • LinkedIn: www.linkedin.com/company/5276965
    • Instagram: www.instagram.com/techmagic
    • Address: 27 Whitehall Street, 5th Fl New York, NY 10004
    5. QArea

    5. QArea

    QArea is an IT outsourcing company that specializes in custom software development, software testing, web applications development, and mobile software development. Founded in 2001, the company operates in the markets of the US and Europe, with its headquarters in Beverly Hills, California, and an offshore development center in Lviv, Ukraine.

    The company has experience in delivering complex custom back-end solutions, building reliable architecture, and creating scalable back-end systems for websites, mobile applications, and software suites. QArea’s back-end engineers are skilled in a wide range of technologies, including Java, PHP, Golang, Node.js, Python, C#, .NET, C/C++, Electron, PostgreSQL, Flask, Django, and MongoDB.

     

    Hoofdzaken:

    • Over two decades of experience in back-end development.
    • A team of accomplished professionals skilled in various technologies and domains.
    • A proven track record of creating complex databases and scalable back-end systems.
    • Expertise in delivering back-end solutions for websites, mobile applications, and software suites.

     

    Services:

    • Custom software development
    • Software testing and QA
    • Web applications development
    • Mobile software development
    • Back-end development services
    • System administration and IT support
    • Project management and communication setup
    • Code quality monitoring and optimization

     

    Contacts:

    • Website: qarea.com
    • E-mail: business@qarea.com
    • Facebook: www.facebook.com/qarea.inc
    • Twitter: x.com/QArea
    • LinkedIn: www.linkedin.com/company/qarea
    • Instagram: www.instagram.com/qarea_ua
    • Address: Olympic Blvd, Beverly Hills, CA 90211 USA
    • Phone: +1 310 388 93 34
    6. CMARIX Technolabs

    6. CMARIX Technolabs

    CMARIX Technolabs is a technology outsourcing company that provides backend development services for web and mobile applications. Their backend solutions are designed to support various platforms, including CRM/ERP systems and custom API integrations. The company emphasizes the development of performance-centric backend platforms using modern technologies.

    CMARIX offers backend development services that focus on speed, scalability, and reliability. Their backend systems are designed to ensure seamless connectivity between databases, servers, and applications, forming the foundation for secure and integrated digital solutions.

     

    Hoofdzaken:

    • Provides backend development solutions for websites, mobile applications, CRM/ERP systems, and custom API integrations.
    • Emphasizes performance-centric backend platforms using modern technologies.
    • Focuses on speed, scalability, and reliability in backend systems.
    • Ensures seamless connectivity between databases, servers, and applications.

     

    Services:

    • Backend development for web applications
    • Backend development for mobile applications
    • CRM/ERP backend solutions
    • Custom API integration services
    • Performance optimization for backend systems
    • Security and integration-focused backend infrastructure

     

    Contacts:

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

    7. BairesDev

    BairesDev is a software development company that offers backend development services tailored to various business needs. Their backend development focuses on creating functional infrastructures that support web and software applications. This includes building custom backend layers and facilitating database interactions to ensure smooth application performance. The company utilizes a range of tools and technologies, such as Python, Java, Django, Ruby on Rails, MySQL, and MongoDB, to construct and maintain the server side of applications.

    In addition to custom backend development, BairesDev provides enterprise backend services designed to manage large volumes of data and support various business processes. These services emphasize reliability, security, scalability, and compliance with industry standards. The company employs advanced database management solutions like Microsoft SQL Server and MongoDB, as well as cloud services such as AWS and Azure, to build robust enterprise systems.

     

    Hoofdzaken:

    • Development of custom backend systems using various programming languages and frameworks
    • Enterprise solutions focusing on data management and process support
    • Utilization of cloud services for scalable backend infrastructures
    • Emphasis on security, scalability, and compliance with industry standards

     

    Services:

    • Custom Backend Development
    • Enterprise Backend Services
    • Backend API Development and Integration
    • Cloud Backend Solutions

     

    Contacts:

    • 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
    8. Zazz

    8. Zazz

    Zazz is a U.S.-based technology company that provides backend development services. The company focuses on building scalable and secure server-side systems using technologies such as Node.js, Go, and Scala. Their approach includes implementing microservices architectures, containerization with Docker, and orchestration using Kubernetes to enhance application modularity and maintainability. Zazz also integrates DevOps practices, including continuous integration and deployment, to streamline development workflows and improve operational efficiency.

    In addition to backend development, Zazz offers services in cloud integration, API development, database management, and real-time systems development. They work with major cloud providers like AWS, Azure, and Google Cloud, and employ technologies such as RESTful APIs, OAuth 2.0 for authentication, and both SQL and NoSQL databases. Their real-time systems are built using technologies like WebSockets and server-sent events to enable live updates and instant user interactions.

     

    Hoofdzaken:

    • Utilization of programming languages including Node.js, Go, and Scala
    • Implementation of microservices architectures with Docker and Kubernetes
    • Integration of DevOps practices for continuous integration and deployment
    • Expertise in cloud integration with AWS, Azure, and Google Cloud
    • Development of real-time systems using WebSockets and server-sent events

     

    Services:

    • Backend development
    • Cloud integration
    • API development and management
    • Database management
    • Real-time systems development
    • DevOps practices

     

    Contacts:

    • Website: www.zazz.io
    • Address: 405 Lexington Avenue, 26th Floor, Manhattan, NY 10174
    9. Fireart Studio

    9. Fireart Studio

    Fireart Studio is a digital product design and development company based in Warsaw, Poland. Established in 2013, the studio offers a range of services, including backend development, to support businesses in building robust digital solutions. The team comprises professionals experienced in various technologies, focusing on creating scalable and secure infrastructures for web applications.

    The company’s backend development services encompass creating web architecture from scratch or reengineering existing systems. They also provide API development and integration, as well as legacy cloud migration services. Fireart Studio emphasizes a full-cycle development approach, integrating backend development with other aspects of software development to deliver comprehensive solutions.

     

    Hoofdzaken:

    • Offers backend development services, including web architecture creation and reengineering.
    • Provides API development and integration services.
    • Offers legacy cloud migration to modernize backend systems.
    • Emphasizes full-cycle software development, integrating backend services with other development aspects.

     

    Services:

    • Website backend development
    • Web application backend development
    • API development and integration
    • Legacy cloud migration

     

    Contacts:

    • Website: fireart.studio
    • E-mail: client@fireart.studio
    • Facebook: www.facebook.com/fireartd
    • Twitter: x.com/fireart_studio
    • LinkedIn: www.linkedin.com/company/2975640
    • Instagram: www.instagram.com/fireart_studio
    • Address: 228 Park Ave S PMB 34708, NY 10003-1502, United States
    • Phone: +1 (929) 230 11 41
    10. Velvetech

    10. Velvetech

    Velvetech is a U.S.-based software development company with over two decades of experience in delivering backend solutions across various industries. With offices in Miami and Chicago, the company offers a range of services, including custom backend development, system integration, and modernization of legacy systems. Velvetech’s approach focuses on aligning technology solutions with specific business needs, ensuring that backend systems are robust, scalable, and secure.

    The company’s backend development services encompass building custom backend layers, integrating enterprise software, and modernizing existing systems. Velvetech emphasizes the importance of backend systems in handling business logic and data processing, aiming to enhance operational efficiency and support digital transformation initiatives.

     

    Hoofdzaken:

    • Expertise in custom backend solutions and system integration
    • Focus on scalability, security, and alignment with business objectives
    • Experience across various industries, including healthcare, finance, and logistics

     

    Services:

    • Custom backend development
    • Enterprise software integration
    • Legacy system modernization
    • API development and integration
    • Cloud services and serverless app development
    • DevOps and application maintenance
    • Business process automation
    • Data engineering and analytics

     

    Contacts: 

    • 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
    11. Softeq

    11. Softeq

    Softeq is a U.S.-based technology company that offers backend development services for various platforms, including mobile, web, desktop, and IoT systems. Their backend solutions are designed to be scalable and adaptable to growing business needs. Softeq’s services encompass building extensible on-premise and cloud-based backend systems, ensuring that applications can handle increasing demands over time.

    In addition to backend development, Softeq provides services such as cloud infrastructure setup and migration, technical backend audits, and mobile app backend development. Their approach includes creating backend systems that support enterprise applications, complex web platforms, VoIP solutions, and web portals. Softeq also focuses on integrating legacy systems with third-party services and applications, aiming to optimize existing infrastructures and enhance performance.

     

    Hoofdzaken:

    • Development of scalable backend solutions for various platforms
    • Integration of legacy systems with modern applications
    • Provision of cloud infrastructure and migration services
    • Conducting technical backend audits to optimize performance

     

    Services:

    • Backend application development
    • Cloud infrastructure setup and migration
    • Technical backend audits
    • Mobile app backend development
    • IoT backend development

     

    Contacts:

    • 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: Softeq Development Corp. 1155 Dairy Ashford Rd., Suite 125 Houston, Texas 77079 USA
    • Phone: +1 888 552-5001
    12. Intersog

    12. Intersog

    Intersog is a Chicago-based software development company that provides backend development services tailored to various business needs. Their offerings include building backend systems for web, mobile, and IoT applications, with a focus on scalability and maintainability. Intersog emphasizes the importance of robust backend architecture to support application functionality, security, and performance.

    The company offers services such as database development, API integration, and server-side logic implementation. Intersog supports various database technologies, including relational databases and NoSQL solutions like MongoDB and ElasticSearch. Their approach includes developing custom APIs, integrating with existing services, and building public APIs to facilitate seamless communication between different software components.

     

    Hoofdzaken:

    • Backend development services for web, mobile, and IoT applications
    • Expertise in database development and management
    • Custom API development and integration
    • Focus on scalable and maintainable backend architecture

     

    Services:

    • Backend application development
    • Database development and management
    • API development and integration
    • Server-side logic implementation
    • Application architecture design

     

    Contacts:

    • Website: intersog.com
    • Facebook: www.facebook.com/intersognorthamerica
    • Twitter: x.com/Intersog
    • LinkedIn: www.linkedin.com/company/intersog
    • Address: 220 N Green St, 2nd floor Chicago, IL 60607, USA
    • Phone: +1 833 468 3776
    13. Sapphire Software Solutions

    13. Sapphire Software Solutions

    Sapphire Software Solutions is a software development company that offers backend development services. Their services include backend development for web and mobile applications, API integration, and database management. Sapphire Software Solutions provides backend development services for various industries, including e-commerce, healthcare, and finance. They also offer custom backend development solutions tailored to specific business requirements.

    The company provides backend development services using various technologies, including PHP, Node.js, and Python. They also offer API development and integration services, as well as database design and management. Sapphire Software Solutions’ backend development services are designed to support the functionality and performance of web and mobile applications. They also provide maintenance and support services for backend systems.

     

    Hoofdzaken:

    • Backend development services for web and mobile applications
    • Custom backend solutions tailored to business requirements
    • API development and integration services
    • Database design and management

     

    Services:

    • Backend development using PHP, Node.js, and Python
    • API development and integration
    • Database design and management
    • Maintenance and support for backend systems

     

    Contacts:

    • Website: www.sapphiresolutions.net
    • E-mail: contact@sapphiresolutions.net
    • Facebook: www.facebook.com/SapphireSoftwareSolution
    • Twitter: x.com/SapphireSoftwa
    • LinkedIn: www.linkedin.com/company/sapphire-software-solutions
    • Instagram: www.instagram.com/sapphiresoftwaresolutions
    • Address: 5004 NW 116th Ave, Coral Springs, Florida, FL 33076
    • Phone: +1-754-258-7670
    14. Kellton

    14. Kellton

    Kellton is an IT services and consulting company that provides backend development services. Their offerings include building custom backend layers and enabling cloud integration to support enterprise digital transformation. Kellton’s backend development services focus on writing, optimizing, and deploying server-side code to ensure architectural consistency and improved performance.

    The company utilizes various technologies for backend development, including Node.js, Java/J2EE, PHP, Python, Microsoft .NET, and Ruby on Rails. These technologies are used to create scalable solutions, feature-rich applications, and multi-tiered systems that align with business strategies. Kellton also offers API development and integration services to enhance connectivity and efficiency.

     

    Hoofdzaken:

    • Custom backend development tailored to enterprise needs
    • Cloud integration to support digital transformation
    • Focus on architectural consistency and performance optimization
    • Expertise in multiple backend technologies

     

    Services:

    • Node.js development for scalable solutions
    • Java/J2EE application development
    • PHP development for multi-tiered applications
    • Python-based solution development
    • Microsoft .NET development services
    • Ruby on Rails development services
    • API development and integration

     

    Contacts:

    • Website: www.kellton.com
    • E-mail: ask@kellton.com
    • Twitter: x.com/kelltontech
    • LinkedIn: www.linkedin.com/company/kellton
    • Address: 11100 Wildlife Center Dr. Suite LL #150 300 Reston, VA 20190
    • Phone: 1.844.469.8900

    Conclusie

    Finding the right backend development company can make a big difference in how your digital project turns out. Whether you’re building a complex enterprise system, a web app, or an API-driven platform, the companies listed in this article offer the experience and technical skills to support your goals. Each of them brings something different to the table, from working with popular backend frameworks to offering flexible collaboration models.

    Choosing a partner really comes down to your specific needs – your tech stack, your timeline, and how closely you want to work with the development team. The good news is that the U.S. has a wide range of backend development firms that can meet both startup and enterprise demands. With clear communication, a thoughtful approach to architecture, and solid coding practices, the right company can help bring your ideas to life and keep your systems running smoothly behind the scenes.