Top 13 Java Development Companies In The U.S. (2025)

Has your business been promised top-tier software solutions, only to be left with poor results and wasted investment? Many development firms claim they can deliver world-class Java applications, but not all have the skills, experience, or track record to back it up.

Finding the right Java development company in the US—one that truly understands your industry and has a proven record of success—isn’t easy. Searching through endless options online takes time, so today, we’ve curated a list of the best Java development companies in the United States to help you find the perfect partner.

What Makes a Top Java Development Company?

Not all development companies are created equal. To help you filter the best from the rest, here are the qualities that define a top US-based Java development firm:

• Proven track record: Results matter. Look for companies that can show completed Java projects, client testimonials, and measurable outcomes.
• Specialised talent: A strong team of Java experts is essential. You want developers who understand the full Java ecosystem—frameworks, libraries, and enterprise solutions.
• Technical versatility: The best companies can build everything from enterprise-grade applications to scalable cloud solutions, using modern Java frameworks like Spring, Hibernate, and Jakarta EE.
• Industry experience: See who they’ve worked with before. A company that’s delivered successful Java projects across industries is more likely to understand your business challenges and deliver tailored solutions.

Now that you know what to look for, let’s dive into the top Java development companies in the US that can help bring your software vision to life!

Top Java Development Companies in the U.S.

1. 6B

Yes, that’s us—6B. While we’re based in the UK, we proudly partner with businesses across the US, delivering world-class Java development services that help companies scale and innovate.

Over the years, we’ve been recognised not just for our technical excellence, but for our ability to consistently deliver measurable results for our clients.

What Does Our Java Development Offering Look Like?

• Custom Java Applications – From enterprise software to customer-facing platforms, we build secure, scalable, and high-performing Java solutions tailored to your business needs.
• Enterprise Solutions – Expertise in building large-scale applications with frameworks like Spring, Hibernate, and Jakarta EE for complex enterprise systems.
• Cloud & Integrations – We design Java applications optimized for the cloud and integrate seamlessly with your existing infrastructure.
• Full-Stack Teams – Our developers, architects, QA engineers, and project managers work together to ensure end-to-end delivery, from concept to deployment.
• Cross-Border Delivery – With teams in both the UK and the US, we support international growth and provide around-the-clock collaboration.

We know it might sound biased, but our track record speaks for itself. Here are just a few examples of how we’ve helped clients succeed:

• Built a custom Java-based platform that enabled a healthcare company to scale nationwide while maintaining HIPAA compliance.
• Delivered a Java microservices architecture for a US fintech, reducing system downtime by 40% and supporting rapid transaction growth.
• Helped an health tech client migrate legacy systems to a modern Java stack, improving application speed by 60% and increasing conversions.

At 6B, we don’t just write code—we deliver software that drives business growth. Whether you’re scaling in the US or expanding globally, our Java expertise ensures you have the technical foundation to succeed.

So if you’re looking for a Java development company in the US that delivers results – click the button below to get in touch. Or, if you’d like to learn more about our Java development services, then check out our service page here.

Get in touch with our Java Development team

2. OpenXcell

OpenXcell is a U.S.-based software development company that excels in Java development, focusing on delivering secure, scalable, and enterprise-grade Java applications. Based in Las Vegas, Nevada, their U.S. operations allow them to serve American businesses with a local touch, ensuring fast communication and client-centered service. Their Java expertise spans the full stack: they build robust web and mobile applications, provide legacy system upgrades, and support Java-based SaaS solutions.

They employ a large team of certified Java developers with deep knowledge of the Java EE platform and frameworks like Spring Boot and Hibernate. Their Java services cover custom software development, eCommerce apps, web apps, J2EE applications, and migration of older platforms to modern Java environments.

• Full-stack Java application architecture using Java EE and microservices
• Java-based mobile, web, and enterprise application development
• Expertise in migrating legacy systems and maintaining Java applications with scalability and security-focused design

3. Flatirons

Flatirons is a New York-based company specialising in Java development. They build custom Java applications including back-end systems, microservices, and java-powered APIs. They also offer ongoing maintenance and support to ensure applications are secure, performant, and scalable.

Their Java-development practices emphasise modern frameworks (e.g. Spring), quality assurance, agile methodologies, and working with clients across industries to meet specific technical and business requirements.

• Designing microservice architectures and cloud-integrated back-end solutions
• Rigorous QA/testing and performance optimisation
• Flexible engagement models: staff augmentation, full project outsourcing, and full-lifecycle support

4. Azumo

Azumo is a software development company that offers strong Java development services, including custom application development, web apps, enterprise systems, and cloud-based platform work. They emphasise scalable, maintainable solutions using modern Java frameworks like Spring and Hibernate, and support migration and maintenance of legacy systems.

Their process includes nearshore staffing, dedicated teams, and project delivery models, and they target high performance, security, and usability in Android, desktop, web and enterprise applications.

• Broad Java service offerings: custom apps, web, enterprise, cloud, mobile, migration
• Use of modern frameworks and practices to ensure maintainability, scalability and performance
• Flexible staffing and delivery models (team augmentation, dedicated teams, project management)

5. AppIt Ventures

AppIt Ventures is a U.S.-based Java development firm offering custom software solutions to clients across industries. Their Java expertise includes building server-side and web applications, developing APIs and enterprise tools, upgrading legacy systems, and maintaining high standards of code quality, performance, and reliability.

They follow a structured development methodology blending agile and fixed-bid practices, with a four-phase process covering discovery, design, development, and deployment. Their Java teams are U.S.- and nearshore-based, bringing experience across frameworks, multithreading, cross-platform logic, and comprehensive testing.

6. Charter Global

Charter Global is a U.S.-based technology services firm that offers comprehensive Java development. They specialise in building scalable, secure, high-performance Java applications tailored to enterprise needs, including cloud-enabled solutions, microservices, web and mobile apps, SaaS, Java API development and migration of legacy systems. Their teams use modern Java frameworks and best practices to ensure robustness, maintainability and agility in delivery.

They follow a structured process including requirements analysis, architecture design, development, rigorous testing, deployment and ongoing support. Their Java services are built to integrate smoothly into complex environments and address non-functional concerns such as scalability, security and performance.

7. Digis

Digis offers Java development services with global reach and explicitly supports clients in the United States. They deliver enterprise-grade Java applications, microservices architectures, cloud-based solutions, and RESTful APIs, placing emphasis on scalability, performance and long-term maintainability.

They employ a rigorous hiring process (accepting only a small percentage of applicants) and ensure speedy staffing and team integration. Their Java tech stack includes Spring, Hibernate, Maven, JUnit, and frameworks for database management such as MySQL, PostgreSQL, MongoDB and tools for caching.

8. BairesDev

BairesDev is a company that delivers Java development services to clients in the United States, with a focus on back-end systems, APIs, web apps, cloud-native and microservices architectures. They hire highly experienced Java developers (generally 8–10+ years of experience), often in nearshore teams that align with U.S. time zones and offer quick onboarding. Their Java offering includes modernisation of legacy systems, building scalable SaaS platforms and integrating Java-based applications with other enterprise systems.

They use a wide stack of Java tools and frameworks, including Spring Boot, Hibernate, Jakarta EE, Quarkus and Micronaut. Their practices emphasise clean architecture, predictable delivery, minimizing technical debt, ensuring security and performance and making sure the final product can scale under real-world loads without frequent rework.

9. ScienceSoft

ScienceSoft is a U.S.-based company that offers mature Java development services, with more than two and a half decades (26 years) of experience and a team of over 750 IT professionals. Their Java practice includes everything from business analysis and architecture planning through to maintenance, evolution, cloud-native development, and legacy modernisation. They work across over 30 industries and deliver large-scale projects, MVPs, SaaS, web and mobile apps, and back-end systems.

Their U.S. operations emphasise strong quality and security practices, including ISO-9001 quality management and ISO-27001 security certification. They support flexible engagement models (team augmentation, dedicated teams, full project delivery) with fast ramp-up times, frequent release cycles, and well-defined processes around code reviews, documentation, testing and performance.

10. ConvexSol

ConvexSol is a U.S.-oriented Java development company offering end-to-end services in designing, building, deploying, and supporting Java applications. Their American teams develop custom enterprise software, web applications, content management systems, cloud-based Java solutions, and maintain or migrate existing Java systems. They emphasise secure, scalable architecture and performance optimisation for business-critical platforms.

Their process for Java projects in the U.S. includes requirements assessment, design & architecture, development, rigorous testing & quality assurance, integration & deployment, and ongoing maintenance & support. They also cater to multiple industries — finance, e-commerce, healthcare, education and more — tailoring Java solutions to each domain’s particular demands.

11. SoftwareDevelopersPro

SoftwareDevelopersPro is a U.S.-based company (in NYC) that offers Java development services with a team of certified Java developers. Their offering is focused on allowing clients in the U.S. to hire Java expertise affordably, with flexible engagement and a local presence. According to their site, you can hire dedicated Java developers from them to build enterprise apps or systems. Their emphasis is on well-qualified staffing, matching client projects in New York and USA broadly, and maintaining standards of code quality and developer credentials.

12. Softweb Solutions

Softweb Solutions is a U.S.-based company offering Java development services that emphasise enterprise-grade, scalable, secure, high-performance software. Their U.S. locations include Plano, Texas and Hoffman Estates, Illinois. The company builds a wide array of Java solutions, from custom applications and system integration through to legacy system modernisation, cloud-native apps, API development, microservices, CMSs, and ongoing maintenance and support.

Their Java practice uses frameworks and tools like Spring Boot, Hibernate, Struts and EJB, along with front-end templating via JSP and Thymeleaf. They follow an end-to-end development process including requirements analysis, architecture & design, agile development & testing, deployment & integration, plus hiring models such as fixed price, time & material, dedicated teams and hybrid to meet different project scopes and client needs.

13. TatvaSoft

TatvaSoft is a software development company that offers Java development services and has a U.S. location (Dallas, Texas). Their U.S. presence gives them proximity to U.S. clients, facilitating communication, project oversight, and alignment with local business practices.

Their Java expertise covers a broad span, including web application development, enterprise Java integration, API development, migration of legacy applications to modern architectures, and ongoing maintenance and support. They use frameworks like Spring, Spring Boot, Struts, JSF, microservices, Kafka, and database technologies such as Oracle and MySQL.

Why Hire One of the Best Java Development Companies in the U.S.?

With so many businesses competing in the same space, having a reliable, scalable, and high-performing Java application can be the difference between standing out—or falling behind. A top-tier Java development company ensures you maximize the return on your technology investment by building software that truly delivers results.

Whether you need a custom enterprise solution, a secure web application, or a complex integration, the right Java partner can help you bring your vision to life and give your business the technical edge it needs.

If you’d like to explore how a leading US Java development team can help your company grow, reach out today to start the conversation.

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