Top 100 Java Development Companies in London

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Top 100 Java Development Companies in London

The Best of February 2024

Looking for a top Java developer in London?

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 London. 

Jump to Most Reviewed Companies

List of the Best London Java Developers

  • 1
    (31 Reviews) 4.8
    • Timeliness

      4.7
    • Service Excellence

      4.8
    • Value

      4.3
    • Would Recommend

      5.0
    • $100,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    N-iX is a global software solutions and engineering services company that helps the world’s leading organizations turn challenges into lasting business value,  operational efficiency,  and revenue growth using modern technology. With over 2,000 professionals in 25 countries across Europe and the Americas, N-iX offers expert solutions in cloud, data analytics, embedded software, IoT, AI, machine learning, and other tech domains. Being in business for over two decades, we have worked with dozens of industry-leading enterprises and Fortune 500 companies, creating value across a wide variety of sectors, including finance, manufacturing, supply chain, retail, and more. 

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    Clients

    • Fortune 500 companies
    • Bosch
    • Siemens
    • Ebay

    Industries

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  • 2
    (71 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.7
    • Would Recommend

      5.0
    • $25,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Headquartered in New York, Vention is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, Vention 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, Vention's talent pool includes 3500+ engineers with experience in all of the latest technologies.

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    Clients

    • IBM
    • PayPal
    • IC Markets
    • StoneX

    Industries

  • 3
    (47 Reviews) 4.8
    • Timeliness

      4.6
    • Service Excellence

      4.8
    • Value

      4.5
    • Would Recommend

      4.9
    • $25,000+
    • 250 - 999 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.

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    Clients

    • Philips
    • Nike
    • Porsche
    • Coca-Cola

    Industries

  • 4
    (27 Reviews) 4.8
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      4.6
    • Would Recommend

      4.8
    • $25,000+
    • 250 - 999 employees
    • London, United Kingdom

    Altkom Software & Consulting, founded in 1998, is a software development company headquartered in Warsaw, Poland, with an additional office in Krakow, Poland. They specialize in custom software development, web development, and application management & support. The company has 130+ employees who work with enterprise, mid-market, and small businesses. The businesses they serve are mostly in the financial services industry. 
     

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    Clients

    • BNP Paribas
    • AXA Insurance
    • Santander
    • Danone

    Industries

  • 5
    (119 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.6
    • Would Recommend

      4.9
    • $50,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.

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    Clients

    • Samsung
    • Johnson & Johnson
    • GlobePayroll
    • Siemens

    Industries

  • 6
    (15 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $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.

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    Clients

    • Kopona
    • Brain.Health
    • CityMunch
    • Altus Investment Management Ltd

    Industries

  • 7
    (50 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.8
    • Would Recommend

      4.9
    • $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. 

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    Clients

    • ABB
    • Nokia
    • Groupon
    • TELUS

    Industries

  • 8
    (73 Reviews) 4.8
    • Timeliness

      4.7
    • Service Excellence

      4.8
    • Value

      4.8
    • Would Recommend

      4.8
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    Sparx IT Solutions is a technology solutions provider founded in 2007. Based in Noida, India, with an office in New York, the team specializes in mobile app development and web development. The primarily serve small business and mid-market clients in the eCommerce, education, and advertising & marketing industries.

     

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    Clients

    • Wynora
    • Aliment
    • JexMovers
    • HP

    Industries

  • 9
    (13 Reviews) 4.8
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      4.8
    • Would Recommend

      4.9
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    SENLA is a fast-growing software development company in 5 EU locations, founded in 2012. Our team of 600+ certified technical specialists and managers has large expertise in a full-cycle development from BA to maintenance as well as separate services like QA or UX Audit. We have successfully completed over 350 projects in FinTech, Healthcare, Manufacturing and other industries.

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    Clients

    • Abbott
    • Bayer
    • Accenture
    • Banx.one

    Industries

  • 10
    (26 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.5
    • Would Recommend

      4.9
    • $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.

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    Clients

    • The Carlyle Group
    • Nasdaq
    • Apax Partners
    • Monex

    Industries

  • 11
    (4 Reviews) 4.8
    • Timeliness

      4.6
    • Service Excellence

      4.8
    • Value

      3.8
    • Would Recommend

      5.0
    • $50,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Pentalog is a large Brașov, Romania-based custom software development company. Established in 1993, the team offers custom software development, IT staff augmentation, e-commerce development, and web development.

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    Clients

    • Adidas
    • Ubisoft
    • SumUp
    • Rakuten

    Industries

  • 12
    (23 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    DotCode is a design and development company based in Lviv, Ukraine, and founded in 2018. Their team of more than 10 provides web development, web design, and e-commerce development solutions for clients in the fields of hospitality, advertising, and financial services.

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    Clients

    • The Venue Report
    • Shepard Health
    • FlyJets
    • Thrive Card

    Industries

  • 13
    (19 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $5,000+
    • 10 - 49 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.

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    Clients

    • Launchworks
    • Own-Kind
    • pixable
    • First Ascent

    Industries

  • 14
    (45 Reviews) 4.8
    • Timeliness

      4.6
    • Service Excellence

      4.8
    • Value

      4.9
    • Would Recommend

      4.9
    • $100,000+
    • 50 - 249 employees
    • London, United Kingdom

    Digiryte is a web and mobile app development company based in Manchester, United Kingdom with another UK office in Preston. Since 2015, their team of 28 has been specializing in mobile app development, custom software development, and web development for midmarket clients. 

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    Clients

    • NHS
    • Channel 4
    • Close Brothers
    • Hinch Property Management

    Industries

  • 15
    (18 Reviews) 4.8
    • Timeliness

      4.7
    • Service Excellence

      4.8
    • Value

      4.7
    • Would Recommend

      4.9
    • $50,000+
    • 50 - 249 employees
    • London, United Kingdom

    Supercharge is a digital production firm that is headquartered in Budapest, Hungary with a second office in London. Founded in 2010, Supercharge's team of more than 100 employees specializes in web and mobile app development. The firm also offers UI/UX design services to its clients.  

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    Industries

  • 16
    (26 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.7
    • Would Recommend

      5.0
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Blink22 is a mobile and web development firm based in Alexandria, Egypt. Founded in 2015, their team of 125 serves clients in the transportation and communal workplace sectors. Services include, iOS, Android, and React Native development.

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    Clients

    • Jumia
    • Careem
    • Khatabook
    • Geidea

    Industries

  • 17
    (69 Reviews) 4.6
    • Timeliness

      4.5
    • Service Excellence

      4.6
    • Value

      4.5
    • Would Recommend

      4.6
    • $5,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Despite only being around since 2002, Dotsquares has nearly 1000 employees across the UK, UAE, US, Australia, India, and France. They offer a staggering variety of services, including web, app, game, and e-commerce development and IT consulting and support.

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    Clients

    • Ericsson
    • Dunkin Donuts
    • Shieldpay Ltd
    • Kenwood

    Industries

  • 18
    (17 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.7
    • Would Recommend

      4.9
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Synetec is a software development consultancy headquartered in London. They were established in 2009, and have 26 employees. Synetec's range of services includes cloud, CRM, and business intelligence consulting, software integration, web development, custom software development, and more.

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    Clients

    • Argentex
    • Genesis
    • Jabre Capital Partners
    • Zebedee Capital Partners LLP

    Industries

  • 19
    (18 Reviews) 4.8
    • Timeliness

      4.6
    • Service Excellence

      4.8
    • Value

      4.3
    • Would Recommend

      4.9
    • $50,000+
    • 250 - 999 employees
    • London, United Kingdom

    Headquartered in London, Opinov8 Technology Services is a technology solutions company that was founded in 2016. With offices in Ukraine and Spain, the team of 88 works with mid-market and small businesses in the financial services, advertising, marketing, gambling, hospitality, IT, and media industries. Opinov8 specializes in custom software development, enterprise app modernization, big data consulting, and clould consulting for clients.

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    Clients

    • Fortune 500 Companies
    • Computer and IT service business. Leading Global Media companies. Global Logistics Technology business
    • Leading European Fintech Platform businesses. Global Tire Manufacturers. Leading European Car Manufacturer.  Top 100 Swiss Healthtech Startup. Many more

    Industries

  • 20
    (14 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.8
    • Would Recommend

      4.9
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Default-Value Software Developers is an e-commerce development company. They specialize in e-commerce development, custom software development, and web development and were founded in 2010. Their small team is Chercassy, Ukraine-based.

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    Clients

    • Quad Nova
    • Knorke
    • Bannerheld
    • Torn

    Industries

  • 21
    (23 Reviews) 4.7
    • Timeliness

      4.5
    • Service Excellence

      4.7
    • Value

      4.5
    • Would Recommend

      4.8
    • $25,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Robosoft Technologies is a full-service digital experiences agency offering digital advisory, design strategy, UX/UI services, application development & maintenance and expertise in emerging technologies such as AR, VR, blockchain, chatbots and more. Established in 1996 and headquartered in San Francisco, the team of 500+ has offices in Mumbai, Udupi, Bengaluru, Chicago, and New York.

     

     


     

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    Clients

    • Warner Bros. Discovery
    • McDonald’s India
    • Daimler Benz
    • ESPN

    Industries

  • 22
    (11 Reviews) 4.7
    • Timeliness

      4.3
    • Service Excellence

      4.7
    • Value

      4.2
    • Would Recommend

      4.9
    • $10,000+
    • 250 - 999 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.

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    Clients

    • The BBC
    • David Lloyd Clubs
    • RSA
    • The Cabinet Office

    Industries

  • 23
    (3 Reviews) 4.8
    • Timeliness

      5.0
    • Service Excellence

      4.8
    • Value

      4.7
    • Would Recommend

      5.0
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Influential Software is a software development firm in London, United Kingdom; Maidstone, United Kingdom and Glasgow, United Kingdom. The firm focuses on custom software development, web development, BI & big data consulting & SI, IT managed services, and more and has a midsize team.The firm was launched in 1993.

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    Clients

    • Deloitte
    • American Express
    • London Stock Exchange
    • Pret a Manger

    Industries

  • 24
    (25 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      4.8
    • Would Recommend

      5.0
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    CubeZoo is a web development company. The small team is headquartered in Randburg, South Africa. Their services include web development, mobile app development, and enterprise app modernization.

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    Clients

    • Allegra
    • BMW
    • Investec
    • Vodacom

    Industries

  • 25
    (19 Reviews) 4.7
    • Timeliness

      4.5
    • Service Excellence

      4.7
    • Value

      4.7
    • Would Recommend

      4.8
    • $25,000+
    • 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.

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    Clients

    • ARM INC
    • Vonage
    • British Council
    • BBC

    Industries

  • 26
    (11 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $50,000+
    • 10 - 49 employees
    • London, United Kingdom

    Launched in 2020, hatch is a software development company. The company provides custom software development, mobile app development, ux/ui design, IT strategy consulting, and more and has a small team. The company is located in Berlin, Germany; Seefeld, Germany; Zürich, Switzerland and Triesen, Liechtenstein.

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    Clients

    • Valora
    • TUM
    • Knowunity
    • GEMA

    Industries

  • 27
    (44 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Plavno, a website development firm, is based in Nur - Sultan, Kazakhstan. They offer web development, mobile app development, and blockchain and were founded in 2007.

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    Clients

    • Mercedes, Xerox, Kia, eBay, PayPal, Amazon , IBM, Bank, Mediacube

    Industries

  • 28
    (11 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $5,000+
    • 250 - 999 employees
    • London, United Kingdom

    Coders Dev is a web design and mobile app development company based in London with offices in Singapore and Abu Dhabi, U.A.E. The company, founded in 2010, has more than 500 employees and provides web development and AI services. Coders Dev serves small and larger-sized companies in the health care & medical, hospitality & leisure, consumer products & services, financial services, gaming, telecommunications, automotive, manufacturing, and e-commerce industries. 

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    Clients

    • British Telecom
    • eBay
    • Mannatech
    • Spirit Airlines

    Industries

  • 29
    (4 Reviews) 5.0
    • Timeliness

      4.6
    • Service Excellence

      5.0
    • Value

      4.6
    • Would Recommend

      5.0
    • $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.

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    Clients

    • Virgin Trains
    • Heron Financial
    • Eurocom CI
    • The Depositary

    Industries

  • 30
    (7 Reviews) 4.7
    • Timeliness

      4.4
    • Service Excellence

      4.7
    • Value

      4.1
    • Would Recommend

      5.0
    • $10,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Founded in 2005, PGS Software is an IT solutions company based in Wroclaw, Poland. They provide development and consulting services to businesses of all sizes from a variety of industries. 

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    Clients

    • Yell
    • Schmitz-Cargobull
    • Coople
    • Interflon

    Industries

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