Top 10 Java

Companies in London

London is a lively capital and a leader in technology and fintech. In the first quarter of 2024, over 7,250 tech companies were set up, showing the city's strong growth. The value of London’s tech sector has increased to over £600 billion, with venture capital investment rising by 800% since 2014. London has more unicorn companies, or tech firms worth over $1 billion, than any other city in Europe. Several factors drive this success, including strong investment opportunities, a growing fintech scene, and a diverse talent pool in areas like AI, cybersecurity, and green tech. The startup scene in London is thriving, keeping the city at the top in Europe for tech growth. However, challenges like economic uncertainty and the need for affordable tech workspaces still exist. As these issues are tackled, London’s tech sector is set for even more success.

How Did We Pick the Best?

1

Plavno

LondonUnited Kingdom

Team Size 50-249
Cost of Services $$$$$ $30-70/h
2025 Awards Winner
2024 Awards Winner
2023 Awards Winner

Service Focus:

Artificial IntelligenceMobile App DevelopmentDesktop App Development + See more

Description

Plavno is an AI-first software development company that helps businesses design, build, and scale intelligent digital products. We work with startups, enterprises, and technology-driven organizations that want to turn innovative ideas into reliable, high-performance solutions.Our multidisciplinary team covers the entire product lifecycle — from business analysis and product strategy to UI/UX design, custom software development, quality assurance,...

Our Take

Known for its credibility, Plavno has vast experience, excellent customer feedback, and a strong portfolio. Their TechBehemoths profile is proof of their experience and knowledge in the field.
View profile Contact Plavno
2

Mobiteam UK

LondonUnited Kingdom

Team Size 2-9
Cost of Services $$$$$ $70-150/h
2025 Awards Winner
2024 Awards Winner
2023 Awards Winner

Service Focus:

Web DevelopmentE-Commerce DevelopmentWeb Design + See more

Description

Mobiteam does custom Web Design and Development. It is specialized in designing aesthetically beautiful and high-quality websites for corporate, personal and eCommerce. Our clients get websites that sell, attract and obtain market and customer’s respect. The company is located in London and distributed in Berlin and Chișinau to have the chance to work with the best specialists without compromising the qualit...

Our Take

Mobiteam UK works with small and medium enterprises as well as start-ups. The company's priority is customer happiness, which is built on teamwork and passion. We invite you to take a look at their offerings and decide if they are a good fit for you.
View profile Contact Mobiteam UK
3

Digiruu

LondonUnited Kingdom

Team Size 2-9
Cost of Services $$$$$ $70-150/h

Service Focus:

Mobile App DevelopmentUX/UI DesignWeb Design + See more

Description

Digiruu is an award-winning mobile app development company, with +10 years of experience in designing and developing apps for startups and businesses across multiple industries with the aim of generating results.  Our previous work includes creating the Official Climate Week NYC app for the largest climate summit in the world, the UK’s first branch-free mobile phone network Moblox, and even the official ByErim app for social media influencer Erim...

Our Take

Known for its credibility, Digiruu has vast experience, excellent customer feedback, and a strong portfolio. Their TechBehemoths profile is proof of their experience and knowledge in the field.
View profile Contact Digiruu
4

Timspark

LondonUnited Kingdom

Team Size 50-249
Cost of Services $$$$$ $30-70/h
2025 Awards Winner
2024 Awards Winner

Service Focus:

IT Staff AugmentationMobile App DevelopmentWeb Development + See more

Description

Timspark is a UK-registered custom software development partner with delivery centers across Europe (Poland, Lithuania, Georgia) and a distributed presence including Latvia. We bring together 1,000+ vetted engineers and 30+ pre-built teams, serving 200+ clients across finance, healthcare, retail, logistics, manufacturing, and more.How we engageWe offer Core Teams (pre-built, domain-savvy units with clear ownership), Dedicated Teams, Team Augmenta...

Our Take

Timspark is a dedicated team delivering results. Each member brings unique skills and love for what they do. Their attention to detail ensures that every client receives personalized and effective solutions. Check out their portfolio on TechBehemoths to see more Timspark projects.
View profile Contact Timspark
5

ExpandX Marketing & Web

LondonUnited Kingdom

Team Size 10-49
Cost of Services $$$$$ $70-150/h
2025 Awards Winner
2024 Awards Winner

Service Focus:

Marketing StrategyWeb DevelopmentE-Commerce Development + See more

Description

Digital & Web Solutions for Business Growth ExpandX is an award-winning, full-service digital agency and web solutions provider servicing clients in North America, Europe and Middle East since 2015.  Main areas of expertise: Web Development  E-commerce websites development Video Marketing  Digital Strategy  Social Media Marketing Digital Marketing...

Our Take

ExpandX Marketing & Web works with small and medium enterprises as well as start-ups. The company's priority is customer happiness, which is built on teamwork and passion. We invite you to take a look at their offerings and decide if they are a good fit for you.
View profile Contact ExpandX Marketing & Web
Help everyone by improving this top!

Suggest a great company you have worked with

Suggest a company

Top Java Companies in other cities

What is Java and what are its benefits for your projects?

Java is a versatile programming language that powers countless applications, websites, and systems in our digital world. Specialized companies that provide Java development services are driving the technology evolution. 

The programming language is also known for its robustness and portability and has been a trusted choice for developers for decades. Java development services include a wide spectrum of offerings, from building web and mobile applications to crafting intricate enterprise solutions. Java's platform independence makes it ideal for creating applications that can run on various devices and operating systems.

Java development companies are providing software solutions that power businesses and transform industries. These firms are home to skilled Java developers, software engineers, and architects who design, build, and maintain Java-based applications. Renowned Java development companies include Intellectsoft, Iflexion, and Altoros. However, the list is way larger and we invite you to explore more than 2853 qualified companies that have a proven track record in providing services and solutions using Java as the main programming language. 

When you engage a Java development company, reliability is a key factor. These firms often boast a track record of delivering successful projects on time and within budget. Also, these companies should possess a deep understanding of Java's nuances, allowing them to navigate complex development challenges and ensure the quality and performance of your software.

Java development companies are armed with a rich set of tools and technologies to bring your digital visions to life. They leverage Java development kits (JDKs), integrated development environments (IDEs) such as Eclipse and IntelliJ IDEA, and frameworks like Spring and Hibernate to streamline the development process. Additionally, they harness modern technologies like cloud computing, microservices, and DevOps for efficient development and deployment.

Java development companies often provide a comprehensive suite of services that extend beyond Java programming. These include software consulting, architecture design, quality assurance, software testing, and ongoing maintenance and support. This approach ensures that your software not only gets built but also performs optimally in the long run.

Selecting the best Java development company for your project requires careful consideration. Begin by evaluating their portfolio to assess their expertise and style. Look for client testimonials and case studies to gauge their reliability and client satisfaction. Consider their experience in your industry or niche, as well as their ability to scale and adapt to your project's needs.

Java development services are essential for a wide array of projects, including:

  • Enterprise Software: Building scalable and secure applications for large organizations.

  • Web Applications: Crafting dynamic and interactive web solutions.

  • Mobile Apps: Developing cross-platform and native mobile applications.

  • Cloud-Based Solutions: Creating software for the cloud, leveraging platforms like AWS, Azure, and Google Cloud.

  • E-commerce Platforms: Building robust and scalable online shopping platforms.

Java development services find applications across industries and sectors. Businesses seeking to modernize their technology infrastructure, startups looking to launch innovative software products, government agencies requiring secure and efficient systems, and educational institutions needing custom e-learning solutions all rely on Java development companies.

The cost of Java development services can vary widely depending on factors such as project complexity, size, and scope. Costs can range from several thousand dollars for small projects to hundreds of thousands for extensive enterprise solutions. We suggest working closely with your chosen Java development company to define project parameters and budget constraints.