Looking for a top Java developer in the United Kingdom?

Getting started with the Java programming language can be difficult, especially when you go at it alone.

To assist you in your search for a partner, we’ve compiled this list of the top Java development companies in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs. If you need more support, tell us about your project, and we'll match you with recommended companies.

List of the Best United Kingdom Java Developers

  • 1
    $25,000+
    1,000 - 9,999 Employees
    London United Kingdom

    Headquartered in New York, iTechArt is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, iTechArt has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, iTechArt’s talent pool includes 1600+ engineers with experience in all of the latest technologies.

    Clients
    ClassPass
    ZEFR
    Gain Capital (forex.com)
    Merkle
    Industries
    Notable Project

    iTechArt Group is assisting with the development of a content management software for video advertisements. The team is building the system to accommodate multiple social media platforms like YouTube and Facebook.

    “The engagement has been very successful overall thus far. The work we've been able to quickly launch wouldn't have been possible without iTechArt's help. In addition to the quality of their code, they've also integrated extremely well into our team, adapting to our internal processes relatively seamlessly.” – Founder & CTO, Software Consulting Agency

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  • 2
    $10,000+
    50 - 249 Employees
    London United Kingdom

    Softwire is a digital design, engineering and support agency, with offices in London, Cambridge and Manchester. Employing over 200 engineers we create bespoke digital software, mobile apps, and offer strategic IT consulting for some of the UK’s leading brands including the BBC, David Lloyd Clubs, Channel 5 and many large Government Departments.

    Clients
    BBC
    Allianz
    Royal Pharmaceutical Society
    Industries
    Notable Project

    A fitness club hired Softwire for several projects after a successful website redesign. Softwire redesigned the client's booking system based on PHP and MySQL. Softwire then created a corresponding mobile app for booking. They also provide general maintenance and support, advise the client on branding and lead generation, and develop any custom software.

    " Their mobile app, connected to the booking system, reduced the number of customers booking through our receptionists from 75% to 5% and allowed customers to easily schedule courses. Their stabilization to our main site helps bring in new members all the time. They cut down a significant amount of labor cost and continue to improve the membership experience." -IT Director, Fitness Club

  • 3
    $25,000+
    50 - 249 Employees
    London United Kingdom

    Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.

    Clients
    Philips
    Nike
    T-Mobile
    media & entertainment
    Industries
    Notable Project

    Infinum rebuilt a flight booking app for a startup. The original app was extremely buggy and the company needed further support. One feature Infinum developed allowed customers to sync their calendars to find flights that work around their schedule.

    “While many agencies limit your choices, it was quite different with Infinum. They were clear and upfront about what resources we were getting and why and offered us options, which was really nice.” – Senior Project Manager, App Startup

  • 4
    $50,000+
    50 - 249 Employees
    Poole United Kingdom

    Ready4S is a full-service web and mobile app development company based in Cracow, Poland, with offices in the UK and Ukraine. Started in 2011, this team of 25+ creates digital solutions for organizations both large and small.

    Clients
    Uber
    Coca-Cola
    Credit Agricole
    La Roche Company
    Industries
    Notable Project

    Under a tight deadline, Ready4S developed and implemented an app solution to give the client’s employees easier access to customer data. The team earned praise for its cooperative approach, project management skills, and quality results.

    “I am pleased with our effective cooperation with Ready4S. … I highly recommend Ready4S as a reliable partner.” – Former Sales Support Director, Global Bank

  • 5
    $10,000+
    2 - 9 Employees
    London United Kingdom

    Sprint Innovations is a development agency based in London with fewer than 10 employees. Founded in 2014, they offer custom software, web, and mobile app development solutions for clients that work in the fields of business services, financial services, and real estate.

    Clients
    Virgin Trains
    Heron Financial
    Eurocom CI
    The Depositary
    Industries
    Notable Project

    Sprint Innovations developed a custom software solution for a real estate investment firm. The firm needed a management operation software solution that catered to day-to-day management needs. The new system drastically improved operations for the firm.

    “The team did do a pretty good job.” - Founder, Real Estate Investment Firm

  • 6
    $25,000+
    250 - 999 Employees
    Belfast United Kingdom

    Founded in 2009, Unosquare, LLC is headquartered in Lake Oswego, Ore. with other locations in Guadalajara, Mexico, and Belfast, U.K. With more than 600 employees, they provide software testing and development services, combined with their staff augmentation services to meet software engineering needs, using nearshore development professionals.

    Clients
    Vesta
    Harvard Business Publishing
    Foundation Medicine
    Edwards Lifesciences
    Industries
    Notable Project

    A caller ID company hired Unosquare, LLC to provide software engineering and QA resources. Assisting on various projects, Unosquare provided daily support in all aspects of application development.

    "I have been most impressed with the caliber of the technical resources provided by Unosquare." – Senior Director Software Engineering, Caller ID Company

  • 7
    $50,000+
    10 - 49 Employees
    East Sussex United Kingdom

    Bright Interactive is a software development company Based in East Sussex, United Kingdom, that was founded in 1999. Their team of 32 provides custom software development, web development, UX/UI design. 

    Clients
    Flight Centre
    Amnesty International
    Goway Travel
    Unilever
    Industries
    Notable Project

    Bright Interactive provided development services for a digital asset management firm. Their team at Bright Interactive customized interfaces and helped deploy backup servers. Their work received significant positive feedback from executives.

    "Everything has been highly successful. Our main performance metric is whether or not our end clients have been happy with their solutions. They have been in every single instance."–Founder & CEO, Digital Asset Management Firm

  • 8
    $50,000+
    50 - 249 Employees
    London United Kingdom

    Tivix is a digital product development and design company headquartered in San Francisco, with offices across the US, UK, and Europe. Founded in 2008, they have over 90 employees who serve startup, midmarket, and enterprise clients across diverse industries such as FinTech, health care, manufacturing, government, and nonprofit. Tivix reduces engineering risk for clients by offering rapid time-to-market while delivering standards-based code that can be transitioned to an internal team at any time. Their focus is building both internal and consumer-facing digital products that drive business growth. Services include product management, UX/UI design, full-stack software engineering, and DevOps

    Clients
    SolarCity
    Zoetis
    VMware
    Bayer
    Industries
    Notable Project

    Tivix worked with an intergovernmental military alliance to rebuild a mission-critical software system. If and when submarines in international waters come into distress, the organization plans and coordinates the rescue effort of such submarines. Tivix was given complex system requirements and asked to come up with an effective design and solution that would replace a decades-old system. The client was incredibly impressed at every stage of the engagement, with Tivix delivering detailed systems and user-experience design, followed by robust development and operationalization of the system internationally. 

    Every single milestone has been met exactly on time. The company has met every requirement, both in terms of time as well as quality.” Maritime Service Owner, Intergovernmental Military Alliance

  • 9
    $100,000+
    1,000 - 9,999 Employees
    London United Kingdom

    DataArt is a software engineering firm in München, Germany; Zug, Switzerland; London, England; and New York. Founded in 1997, they have about 3,000 employees that serve mainly midmarket and small-business clients in the financial, healthcare, and IT sectors. Services include custom software development, enterprise app modernization, and UI/UX design.

    Clients
    The Carlyle Group
    Nasdaq
    Apax Partners
    Monex
    Industries
    Notable Project

    DataArt provided QA services for a financial institution. In order to help facilitate a smooth transformation, their team tested credit card payments, billing, and other automated functionalities. Their work has received positive feedback and helped detect bugs and issues.

    “The substantial parts are that they’re really transparent and responsive.” – VP & CTO, Financial Institution

  • 10
    $10,000+
    250 - 999 Employees
    London United Kingdom

    TkXel is a mobile app and web development company founded in 2007. With its headquarters in Reston, Va., and an office in Lahore, Pakistan, they have a team of 318 employees. Their services include mobile app development, web development, and custom software development. They primarily serve small and midmarket clients. 

    Clients
    ABB
    Nokia
    Groupon
    TELUS
    Industries
    Notable Project

    TkXel provided web development services for a marketing and advertising agency. They helped migrate a custom architecture that included e-commerce, search, browsing, and advertising functions. The project involved NodeJS, .NET, AngularJS, PHP, Java and Ruby. Efficiency of the company has increased because of the partnership with TkXel. 

    “I appreciate the fact that, even though they are an offshore company, in order to stimulate a project in its early stages, TkXel sent their developers and lead partners onsite to work with our team and gain a familiarity with what our needs are." – CTO, Marketing and Advertising Company 

  • 11
    $25,000+
    250 - 999 Employees
    Coventry United Kingdom

    Objectivity Ltd. is an IT company headquartered in Coventry, United Kingdom, that provides custom software and web development, as well as web design functions. Founded in 1991, the company has over 600 employees. The businesses they serve represent multiple industries including the business services, financial services, and real estate industries.
     

    Clients
    Edrington
    Suez UK
    ImmobilienScout24
    NHS
    Industries
    Notable Project

    Objectivity Ltd. provided staff augmentation services for a retail solutions company. The client needed Objectivity Ltd. to augment their development team. The team was working on headless commerce solutions, and the company provided teams to help the client with development, business analysis, and test functions. The company’s services have helped the client work more efficiently. 

    “We've seen a positive impact, and they increase our capabilities and capacity to deliver. They bring in a high level of technical expertise.” – Head of Software Development, Software Company 
     

  • 12
    $25,000+
    250 - 999 Employees
    London United Kingdom

    Innovecs is a software development company headquartered in New York City with offices in Tel-Aviv, Israel, London, Frankfurt, Germany, Bern, Switzerland, San Francisco, and Kiev, Ukraine. Their team of 360 provides web development, custom software development, mobile app development, application testing, and more.

    Clients
    SGN
    Warner Brothers Turbine
    CallFire
    Iron Source
    Industries
    Notable Project

    Innovecs was hired by a warehousing and logistics company to develop a web application using Angular and Java.

    "The quality of the technical resources was impressive. They’re advanced, have good personalities, and are good people." – Director of Software Development, Distribution Facility 

  • 13
    $10,000+
    10 - 49 Employees
    London United Kingdom

    Codest is a software development company that was founded in 2009 and has offices in Krakow and Warsaw, Poland. They have 40 employees specialized in the end-to-end building of custom products, primarily for companies in e-commerce, marketplace, adtech, fintech, proptech and SaaS. Services include backend, frontend and product design.

    Clients
    Mixfit Inc. (CH)
    Helpling (DE)
    Kesko Senukai Digital (LT)
    Yogobe (SE)
    Industries
    Notable Project

    Codest developed the frontend and backend of a web-based tool for booking targeted online ads for a media company. The client found value in their nuanced understanding of industry needs, fluid communication, and high reliability. They enhanced the product using Ruby on Rails and JavaScript, and it has dramatically increased revenue and contributed to business growth.

    “Codest’s work has had a positive effect on our income. The platform makes it easier for our team to sell ads, which has resulted in increased business. It’s also being used by external customers, making it one of our most important products.” – Head of Development, Media Company

  • 14
    $50,000+
    50 - 249 Employees
    Belfast United Kingdom

    Instil Software is a software engineering firm based in Belfast, Northern Ireland. Founded in 2005, Instil has about 30 employees that work across a variety of industries. They offer custom software development, mobile app development, cloud consulting and software integration, IoT, and web development.

    Industries
    Notable Project

    Instil conducted research, design, and testing of several applications, from mobile apps to server architecture for a large Canadian telecommunications firm. They delivered several user and provider-side portals for changing features for telecom customers and improving the consumer experience. The client praised both quick delivery time and high-quality code from Instil's team.

    "Their competitiveness and their intelligence make them stand out from the crowd. Instil’s sheer breadth of knowledge makes their software services very desirable." - Software Architect, Telecommunications Firm

  • 15
    $50,000+
    50 - 249 Employees
    London United Kingdom

    Intellectsoft is a boutique digital transformation consultancy headquartered in Palo Alto, California. The Company provides cutting edge engineering solutions for global and Fortune 500 companies with the mission to help enterprises accelerate adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation.

    Intellectsoft maintains its advanced domain expertise through five dedicated labs:  Cognitive Computing, Decentralized Applications (i.e. Blockchain), Internet-of-Things (IOT), Premier Customer Experience (CX), and Mixed Reality (AR, VR).

    Established in 2007, Intellectsoft operates across multiple offices with the engineering centers in the U.S., the U.K., the Nordic region and Eastern Europe.

    Clients
    Mitsubishi
    Fleet Nurse
    Harley-Davidson
    Jaguar Land Rover
    Industries
    Notable Project

    Intellectsoft created an e-commerce app with matching backend infrastructure, then integrated it into the client’s blockchain technology. Transforming the given creative demands into a satisfactory product under a strenuous deadline was deemed impressive, as were their communication skills and determination.

    “We've given them a challenge, and they've met it, which is why Intellectsoft has become our leading service provider for technology development.” – Program Manager, Holding Company

  • 16
    Undisclosed
    10 - 49 Employees
    Soho United Kingdom

    IdeaWork Studios is a full-service advertising, development, and design agency founded in 1999. Headquartered in New York City, the company also has offices in Santa Barbara, CA and Las Vegas, NV. The team of more than 20 employees offers branding, web design, web development, and other marketing and design services such as logo and packaging design and email marketing.

    Industries
    Notable Project

    After a wellness resort was acquired by another company, it needed to rebrand and hired IdeaWork Studios. The project included creating a new name and logo for the resort, updating its website to reflect the new branding, and launching an advertising campaign.

    "The level of creativity they showed for a complete rebranding was impressive. We needed to take the resort in a completely different direction, and they did it very quickly. It was impressive what they understood about the brand and what they put forward from a presentation standpoint." – Director of Sales and Marketing, Wellness Resort

  • 17
    $10,000+
    50 - 249 Employees
    Manchester United Kingdom

    CTI Digital is a full-service digital agency from Manchester, UK with other offices in London and Stockport, UK. The agency was established in 2003 and now has a team of 68 that works on web development, e-commerce development, mobile app development, and UX/UI design.

    Industries
    Notable Project

    A government contractor previously had a website that was managed by one company and whose servers were hosted by another. They chose to consolidate all their website work at CTI Digital, who now hosts their servers, provides Drupal development, and updates the website and CRM.

    "The support is really great. The team that deals with support is absolutely brilliant...We have a very good two-way working relationship." — Project Manager, Government Contractor

  • 18
    $10,000+
    10 - 49 Employees
    London United Kingdom

    Developing bespoke web and software solutions, Laracle.com is a twenty-man London-based team that embraces innovation and rises to meet clients' challenges. Working with a variety of SMEs across sectors, they primarily offer complex software, web and mobile application design and development as well as UX/UI design. They were founded in 2017. 

    Clients
    Pepsi Co
    Holland & Barrett
    Seatedly
    Venturi Group
    Industries
    Notable Project

    Laracle.com provided custom software for a hospitality booking SaaS. They built a solution that allows the client to sell customized hospitality packages online. They delivered an exceptional platform that blows similar solutions out of the water. The client was more than pleased with their work.

    "It's a great experience for our customers and very easy for us to manage too. Overall, we were very happy with the outcome and love our new system!" — Director, Hospitality Booking Platform

  • 19
    $1,000+
    2 - 9 Employees
    London United Kingdom

    TH-EY is a development agency in London, England. Founded in 2017, they have about 8 employees that serve clients in a variety of industries. Services include custom software development, web development, and mobile app development.

    Clients
    Launchworks
    Own-Kind
    pixable
    First Ascent
    Industries
    Notable Project

    TH-EY developed a website for a rental community platform. Their team worked on the frontend design and also provided ongoing support. The client is happy with the website and gave it positive feedback.

    “I’m impressed with how well they contribute to solving our business problems and ways around certain issues. They think outside the box on projects and even on certain features.” – CEO, Rental Community Platform

  • 20
    $10,000+
    50 - 249 Employees
    London United Kingdom

    Located in Ahmedabad, India with additional offices in the US and UK, Innovify has been delivering high quality solutions since 2011. Although the team of nearly 130 specializes in mobile app development, they also engage in growth hacking, consulting, and UX design.

    Clients
    ARM INC
    Vonage
    British Council
    BBC
    Industries
    Notable Project

    One of Innovify’s clients, an on-demand delivery platform, wanted to streamline how merchants and businesses placed orders and how they assigned drivers. Innovify developed an Android app and website and helped with marketing and strategy.

    “I have worked with a couple of these companies before, but they haven’t been as process-oriented as Innovify. They have good processes in place and everything was good for me.” – Founder, Logistics Company

  • 21
    $10,000+
    10 - 49 Employees
    London United Kingdom

    Old.St Labs is a software development business based in London. The business, founded in 2020, has a team of more than ten that provides custom software development, mobile app development, UX/UI design, web design & development, and AI services. Old.St Labs serves small and mid-market companies in the advertising & marketing, education, financial services, health care & medical, and legal industries.

    Clients
    Kopona
    Brain.Health
    CityMunch App
    Altus Investment Management Ltd
    Industries
    Notable Project

    A social enterprise hired Old.St Labs to develop the prototype of the mobile app of their community-building platform. Old.St Labs designed the prototype and its front end based on the ideas and concepts the enterprise provided. They did the wireframe prototype on the InVision platform. Old.St Labs completed the project and the resulting prototype exceeded the enterprise's expectations.

    "They were able to submit four iterations of the deliverables on the date. They also responded and took on the feedback in the same timeframe." - Co-Founder & CEO, Social Enterprise

  • 23
    $10,000+
    50 - 249 Employees
    London United Kingdom

    Businessware Technologies is a software development and consulting company based in Austin, TX, with offices in Novosibirsk, Russia. Founded in 2003, Businessware Technologies specializes in custom software development, BI/SI & big data consulting, and mobile app development services. Their client base is focused within the IT, finance, healthcare, and business services industries.

    Clients
    Samsung
    Microsoft
    IBM
    Johnson & Johnson
    Industries
    Notable Project

    Businessware Technologies worked with the technology firm to supply ongoing engineering support and assistance. Businessware Technologies uses Microsoft technologies such as .NET and SQL Server to help with internal business automation software for third-party clients. The client appreciates that Businessware Technologies maintained the same team of strong development resources with very little turnover.

    "In terms of automation processes, I'm sure we've saved clients millions of dollars through the years. This is our primary focus." — Founder, Technology Firm

  • 24
    $10,000+
    50 - 249 Employees
    London United Kingdom

    AppSierra Solutions is a software testing company based in Noida, India, with an office in New Delhi. Founded in 2015, their team currently consists of less than 10 employees. They offer services in application testing, custom software development, and mobile app development. They primarily serve clients in the consumer products, e-commerce, and media industries.
     

    Clients
    Brandalley
    Avora
    Lionheart
    Fitness Kids
    Industries
    Notable Project

    AppSierra Solutions provided WordPress development and SEO for a web development company. They incorporated backend additions and plugins for a major improvement initiative to the online system. They continue to provide SEO and app builds. The client was impressed by their motivation.

    “They're organized, have a wide skill set, and guide clients in a way that promotes results. At the same time, they’re flexible enough to accommodate our idiosyncrasies. They delivered solid work and met our deadlines consistently.” – CEO & Project Manager, Web Development Company
     

  • 25
    $10,000+
    2 - 9 Employees
    Alvechurch United Kingdom

    Exploding Phone is a software development and design firm founded in 2008. Based in Birmingham, U.K., the team of 10 employees specializes in mobile app development, web development and custom software development. They mainly serve small business and midmarket clients in the business services, manufacturing, and health care industries.

    Clients
    The NHS
    Taylor Wimpey
    The Coleman Group
    Capital Fireplaces/Solution Fires
    Industries
    Notable Project

    Exploding Phone Limited worked with a paper and plastic retailer and developed a B2B e-commerce mobile application for PC, iOS and Android. Key features on the app include SAP ERP integration for orders and inventory and custom UI/UX templates for customers. The client was impressed with the team's work.

    "They never made the process difficult. The team explained their work so that even someone with a non-IT background could understand it. They were upfront about their capabilities and the challenges of what we’d ask for, but they fully committed to the work." – Group IT Director, Packaging Company 

  • 26
    $5,000+
    50 - 249 Employees
    London United Kingdom

    Clavax is a software, web and mobile app development company headquartered in San Jose, California, with offices in New Delhi, India, New South Wales, Australia, and Gurgaon, India. Founded in 2011, the team of over 200 employees specializes in mobile app development, web development, and AR/VR development. They primarily serve small businesses in the IT, real estate, and education industries. 

    Clients
    PWC
    Fujitsu
    Auction
    Cleveland Clinic
    Industries
    Notable Project

    Clavax Technologies worked with an aerospace company, providing a variety of services for the client including web development with a complete backend and work on a CMS solution. Overall, the client was pleased with the team's work. 

    "The Clavax team is very skilled at what they do. They definitely have the know-how approach and they're able to develop complex projects." — CTO, Aerospace Company

  • 27
    $10,000+
    2 - 9 Employees
    Leeds United Kingdom

    Founded in 2010, NewRedo Ltd. is a software development company headquartered in Leeds, England. Their team of under 10 serves businesses of all sizes in industries such as healthcare, financial services, and government. Services include custom software development, IT managed services, and mobile app development. 

    Clients
    RaceBest
    Off Limits
    British Library
    Industries
    Notable Project

    NewRedo Ltd. developed a backend web API to a game development company. The company was impressed with the team's ability to deliver a high-quality product.

    "NewRedo is really communicative and really friendly." – Technical Director, Game Development Company

  • 28
    $1,000+
    2 - 9 Employees
    London United Kingdom

    Market Jar is a digital marketing and design agency that was founded in 2017 and is based in London. Their team of 3 employees specializes in SEO, advertising, and email marketing for primarily small business clients in the consumer products, retail, and e-commerce industries.

    Industries
    Notable Project

    Market Jar helped a barbershop to improve their marketing efforts. They provided guidance and solutions that helped the client to upgrade their marketing in general and their presence on social media specifically. The client says that they have seen serious improvements in customer response.

    “Their impressive methods generate great outcomes. We’ve seen notable improvements within a short time period.” – Director, Barbershop

  • 29
    $25,000+
    250 - 999 Employees
    London United Kingdom
    Custom software development company Equal Experts was established in 2007. Their midsize team is based in London , United Kingdom; Manchester, United Kingdom; New York, New York and Bengaluru , India. Equal Experts offers custom software development, mobile app development, BI & big data consulting & SI, and ux/ui design.
    Industries
  • 30
    Undisclosed
    2 - 9 Employees
    Lisburn United Kingdom

    Scaffold Digital is a custom mobile and web development firm based in Lisburn, UK. Founded in 2008, their team of 7 serves clients in the nonprofit sector. Services include iOS/Android, Laravel, and AngularJS development.

    Clients
    University of Ulster
    Warmflow
    Antrim & Newtonabbey Borough Council
    Shelbourne Motors & many more
    Notable Project

    Scaffold Digital created a mobile app for a clean-water nonprofit. They produced a user-friendly app that has seen a sizeable number of downloads. The team managed the project effectively.

    “They had a great workflow easy to track software and great contact whenever needed.” – Head of Development, Nonprofit

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NEED HELP SELECTING A COMPANY?

Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest Analyst.

TELL US ABOUT YOUR PROJECT