Top 100 Application Modernization Companies in the United Kingdom

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Top 100 Application Modernization Companies in the United Kingdom

February 2023

Looking for a top legacy modernization service in the United Kingdom?

Application modernization companies can help create new business value from existing applications. Finding the right company to partner with, however, can be an overwhelming process. 

Jump to Most Reviewed Companies

List of the Best United Kingdom Enterprise Application Modernization Services

  • 1
    • $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 Software provided custom software development services for a body-worn video camera manufacturer. The team is constructing a digital evidence management system for reviewing security footages.

    "All key deliverables were met on time, often exceeding expectations."

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  • 2
    • Scheduling

      4.5
    • Quality

      4.9
    • Cost

      4.3
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Cardiff, United Kingdom

    Box UK is an enterprise software development company based in Cardiff, UK, with an office in London. The company, founded in 1998, has more than 50 employees who provide, among others, custom software development, web development, and enterprise app modernization services to various businesses. 

    Clients

    • OKdo.com
    • Investec Asset Management
    • ateb
    • Welsh Government

    Industries

    Notable Project

    To revamp a gaming publisher’s website, Box UK audited the site to analyze its traffic, user needs, and functions. They then identified a new tech stack and rebuilt the site on WordPress.

    “They make sure that they’re delivering the best that they possibly can.”

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  • 3
    • $10,000+
    • 10 - 49 employees
    • Wimborne, United Kingdom

    Ballard Chalmers is a software development company based just south of London. Founded in 2005, their team provides custom software development, modernisation and integration, as well as support and IT Managed Services.

    Clients

    • Apex
    • Virgin Atlantic Airways
    • Ipes
    • Good Energy

    Industries

    Notable Project

    Ballard Chalmers revamped and continues to support a SharePoint application with over 50,000 records, restructuring the database and customizing reporting.

    "They're good about keeping us up to date and moving things forward."

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  • 4
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.4
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 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.

    Clients

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

    Industries

    Notable Project

    Synetec provides backend development for voice applications. Having started on a Microsoft platform, they now mainly utilize Azure, SQL servers, and APIs.

    "They know the work, the technology, the processes, and what solutions to pursue."

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  • 5
    • $10,000+
    • 2 - 9 employees
    • WOLVERHAMPTON, United Kingdom

    KSB Technologies is a custom software development company. The small WOLVERHAMPTON, United Kingdom-based team focuses on custom software development, web development, IT strategy consulting, cloud consulting & SI, and more. The agency was founded in 2021.

    Clients

    • DFE
    • Hiscox
    • ESFA
    • AutoFlow

    Notable Project

    KSB Technologies was hired by a software development company to provide new functionality and enhancements for their customers. They were also tasked with reducing bugs on their offered products.

    "They provided some unique approaches to problem-solving."

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  • 6
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Chobham, United Kingdom

    Custom software development company Blue Tea Software - London is located in Chobham, United Kingdom. The small team provides custom software development, web development, mobile app development, and enterprise app modernization. The firm was founded in 2014.

    Clients

    • R;pple Suicide Prevention
    • Entoli Medical
    • Vivup
    • AVC Wise

    Industries

    Notable Project

    A medical equipment manufacturing company engaged Blue Tea Software - London to architect, develop, and test a custom software. The team also provided cloud management services for the final product.

    "They’re very personable and build an environment full of openness and trust."

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  • 7
    • Scheduling

      4.7
    • Quality

      4.9
    • Cost

      4.8
    • NPS

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

    Audacia is a bespoke software development firm headquartered in Leeds, UK. Founded in 2007, and have about 30 employees, most of their clients are large-scale enterprises in the European market. They provide custom software development, web development, mobile apps, software integration, and staff augmentation.

    Clients

    • O2
    • Story Homes
    • AESSEAL
    • ADM Agriculture

    Industries

    Notable Project

    Audacia supported a construction company through a land development application and user testing of a new management program. They provided requirements gathering, scoping, and development. 

    “Our organization believes that quality is key, and we’ve found that Audacia buys 100% into that.”

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  • 8
    • Scheduling

      4.2
    • Quality

      4.5
    • Cost

      4.3
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Somo is a digital development company of 125 employees, founded in 2009. Their headquarters is in London, England, with other locations in New York, San Francisco, Singapore, and Bristol, England. They offer numerous service lines, including mobile app development, enterprise app modernization, web development, and mobile marketing. They serve midmarket and enterprise businesses in various industries: media, automotive, business, financial services, advertising, and more. 

    Clients

    • Audi
    • De Beers
    • Hive
    • The Economist

    Industries

    Notable Project

    Somo designed an app, beginning with demo videos to act as a proof of concept and moving into wireframes; the in-house development team finished the product. Somo was also involved in overall mobile strategy.

    "They know the market. They live and breathe mobile, and they just know it all. They’re very creative and innovative."

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  • 9
    • Scheduling

      4.5
    • Quality

      5.0
    • Cost

      4.0
    • NPS

      5.0
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    • $50,000+
    • 2 - 9 employees
    • London, United Kingdom

    Seb Azzo is a custom software development company based in London made up of a team of fewer than 10 members. Since their founding in 2012, they have provided custom software development and enterprise app modernization solutions for clients ranging from startups to large firms, working in industries such as hospitality, education, and business services.

    Clients

    • Accor Group
    • HP
    • Carlsberg
    • De Beers

    Industries

    Notable Project

    Seb Azzo developed all aspects of a cloud-enabled brand guideline sharing and storage technology. They’re continuing their work with their partner to optimize the solution.

    “They have the product’s best interests at heart, pushing it to make sure we’re getting a quality end result.”

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  • 10
    • $10,000+
    • 10 - 49 employees
    • Southend-on-Sea, United Kingdom

    Software agency Atlas - Clever Software is headquartered in Essex and another office in London. With 17 employees, the agency specializes in web, custom software, mobile app development, and more for mainly midmarket businesses.

    Clients

    • Barclays
    • Investec Asset Management
    • M & G
    • Prudential

    Industries

    Notable Project

    Dedicated members of the Atlas team worked to develop a new and mobile-optimized quoting solution that can handle a complex pricing model and allows for greater customer support.

    "The cleverness displayed by Atlas really gave us confidence in knowing that they would deliver."

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  • 11
    • $5,000+
    • 2 - 9 employees
    • Shrewsbury, United Kingdom

    Wolf Logic Ltd. is a software firm founded in Shrewsbury, England with more than one expert. Since their founding in 2018, they have provided custom software development, web development, and enterprise app modernization solutions for small and mid-market firms.

    Clients

    • Nidec Corporation
    • Health Navigator
    • Sheppee
    • Carterwood

    Industries

    Notable Project

    Wolf Logic Ltd. transitioned disparate datasets into a larger online portal that uses AWS. The data contained asset locations, financial data, and geospatial data.

    "They were very engaging throughout the timeline and reactive to our priorities."

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  • 12
    • $5,000+
    • 2 - 9 employees
    • Northampton, United Kingdom

    Full Metal Software is a bespoke software development agency located in Northampton, England. Founded in 2004, they have three employees specializing in full stack web development and innovative business solutions for small and midmarket companies, typically in business services, finance, and healthcare. Services include project management, code updating, CMS support, software development, and outsourcing.

    Clients

    • YourGene Health
    • Pastdrives Ltd
    • Zanzibar Amber Resort

    Industries

    Notable Project

    A managed IT service provider hired Full Metal Software to transfer their software into a cloud-based server and create new test and UAT areas. 

    "Full Metal handled the project brilliantly and continue to deliver great support."

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  • 13
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Aleios is a custom software development firm. They are located in London, United Kingdom and have a small team. Their services include custom software development, enterprise app modernization, web development, and other IT consulting and SI. The firm was founded in 2021.

    Industries

    Notable Project

    A weekly magazine company hired aleios for a development project. They wrote serverless processes to create XML feeds from the firm's CMS. The CEO, a senior architect, and a developer worked on the project. 

    "aleios has a confident and energetic approach to working with their clients that instills maximum trust."

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  • 14
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom
    Small custom software development firm inCode Systems, is headquartered in London, United Kingdom. The team specializes in custom software development, enterprise app modernization, ux/ui design, e-commerce development, and more.

    Industries

    Notable Project

    A food wellness company hired inCode Systems to develop a digital experience for their sales team. The vendor designed the site with WordPress.

    "They were very professional, went out of their way to help with ideas, and accommodated our demands."

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  • 15
    • Scheduling

      4.0
    • Quality

      4.5
    • Cost

      4.3
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $250,000+
    • 10 - 49 employees
    • Brigton, United Kingdom

    Automation Squared Ltd is an app development company based in Horsham, England, with offices in Croydon, England; Brighton, England; and Pittsburgh. The 13-person team got started in 2007 and offers mobile app development, AI development, and enterprise app modernization.

    Clients

    • HCA
    • BP Passport
    • Breathe HR
    • Jessica Ennis

    Industries

    Notable Project

    Automation Squared created a new cloud storage system to replace an existing Access database and uploaded existing records. Features include a payment processing system and support for user inputs.

    "Their work has been a huge step forward."

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  • 16
    • $10,000+
    • 10 - 49 employees
    • Stafford, United Kingdom

    Langley Foxall Ltd. is a business software company based in Stafford, United Kingdom. Founded in 2013, this company has 14 employees. Services provided by Langley Foxall Ltd. include custom software development, app modernization, and mobile app development for small businesses.

    Clients

    • Easy Living Mobility
    • Penny Hydraulics
    • fermacell

    Industries

    Notable Project

    Langley Foxall Ltd developed an online tool to help customers to find the correct product solution for their requirements. They ran tests and took feedback from the client to fix any bugs before launch.

    "We found working with Langley Foxall to be very easy."

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  • 17
    • $10,000+
    • 2 - 9 employees
    • Guilden Morden, United Kingdom

    Crowers Limited, a custom software development company, is based in Guilden Morden, United Kingdom. The company specializes in custom software development, mobile app development, web development, web design, and more and has a small team.The company was founded in 2017.

    Clients

    • Xylem
    • to.co
    • CHUMS

    Notable Project

    Crowers Digital has developed an Android and iOS mobile application for a traveling fairground trade association. Currently, the team handles the app’s maintenance and addresses any bugs that come up.

    “They get back to us almost instantly when we email them.”

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  • 18
    • Scheduling

      4.8
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    Allmatics is a software development company headquartered in Kyiv, Ukraine. They were founded in 2018 and have about 3 teammates. They focus on custom software, web, and mobile app development projects for small businesses and midmarket firms in the healthcare and medical, business services, and e-commerce industries.

    Industries

    Notable Project

    Allmatics finished developing a web-based portal using PHP languages and Java Script. This involved automating and custom-creating features associated with patient results and enrollment.

    "They were very professional and patient with me when I didn’t understand the process."

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

    Digiscript Technical Solutions is an enterprise app modernization company launched in 2019. The small team provides enterprise app modernization, ux/ui design, digital strategy, mobile app development, and more. The agency is located in Swansea , Nigeria and London, United Kingdom.

    Industries

    Notable Project

    Digiscript Technologies was hired to develop a landing page for a real estate company. The client wanted to get more traffic on their website. 

    "They're very impressive in trying to meet all our demands."

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  • 20
    • $50,000+
    • 10 - 49 employees
    • London, United Kingdom

    Founded in 2018, TEC DIGITAL LTD is a software development company based in London that primarily works with midmarket clients. They also provide blockchain, enterprise app modernization, and managed IT services. 

    Clients

    • OCTO Trading Solutions AG

    Industries

    Notable Project

    TEC DIGITAL LTD delivered a web solution that allows users to buy and sell commodities online. They integrated the development with blockchain technology and a third party financial partner. 

    "The deliver the product on time and have a lot of relevant experience."

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  • 21
    • $10,000+
    • 2 - 9 employees
    • Darrington, United Kingdom

    Tucanoo Solutions Ltd is a small custom software development company. They offer custom software development, enterprise app modernization, other application development, and web development and were launched in 2011.

    Industries

    Notable Project

    Tucanoo Solutions Ltd has developed a secure web platform for a money transfer company. They’ve created FAQ and email content, designed UI/UX, built the backend infrastructure, and provided hosting.

    "The quality of Tucanoo’s work is most impressive. That’s very important to us, especially in the financial aspect."

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  • 22
    • $10,000+
    • 10 - 49 employees
    • Edinburgh, United Kingdom
    Viapontica AI is a small Edinburgh, United Kingdom-based custom software development firm. They provide custom software development, IoT development, Artificial Intelligence, product design, and more and were established in 2018.

    Industries

    Notable Project

    A government museum hired Viapontica AI to provide website development. They created a product that will become an online service where users can access their digital information.

    ''The results of their work have been very positive.''

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  • 23
    • $10,000+
    • 10 - 49 employees
    • London, United Kingdom

    Wazobia Technologies is a small custom software development company based in London, United Kingdom. The team provides custom software development, web development, enterprise app modernization, and mobile app development.

    Industries

    Notable Project

    A publishing company has hired Wazobia Technologies to provide a resourcing solution for their web development needs. The team has created apps for six brands using Laravel, WordPress, and Next.js/React.

    "The standard of work has been consistently high."

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  • 24
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Esynergy is a big data analytics company. They are headquartered in London, United Kingdom and have a midsize team. Their services include BI & big data consulting & SI, cloud consulting & SI, custom software development, mobile app development, and more.

    Industries

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  • 25
    • Scheduling

      5.0
    • Quality

      4.0
    • Cost

      3.0
    • NPS

      4.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 50 - 249 employees
    • London, United Kingdom

    Inviqa is a global IT services firm headquartered in London, U.K., that was established in 2012. Their team of 134 employees provides web development, custom software development, staff augmentation, enterprise software integration, strategic consulting services.

    Clients

    • PZ Cussons
    • Virgin
    • World Food Programme
    • Missguided

    Industries

    Notable Project

    Inviqa performed a wide range of assignments such as the implementation of the regional websites and technical architecture consultation. They also provided support for Drupal, Magento and WordPress platforms.

    "They really strive to build open source solutions at an enterprise level."

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  • 26
    • $5,000+
    • 10 - 49 employees
    • Leeds, United Kingdom

    Decodifi Limited is a small mobile app development company. They specialize in mobile app development, enterprise app modernization, ux/ui design, product design, and more and were established in 2022.

    Notable Project

    Decodifi Limited helped a software company build an MVP app for user account registration and database management. They mainly worked in Bubble.io within a limited timeline and budget to validate the product. 

    "They offered great advice to help us follow an accurate lean startup methodology and validate our business ideas."

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  • 27
    • Undisclosed
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Founded in 2000, Endava is a custom software development firm. They are based in London, United Kingdom; Atlanta, Georgia; Denver, Colorado and Mendham, New Jersey and have a large team. The firm offers custom software development, IT strategy consulting, and enterprise app modernization.

    Industries

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  • 28
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom

    Wealax LTD is an IT strategy consulting company. They are headquartered in London, United Kingdom and have a small team that provides IT strategy consulting, cloud consulting & SI, other IT consulting and SI, custom software development, and more. The firm was launched in 2021.

    Industries

    Notable Project

    Wealax LTD developed a website for a design agency. The site was aimed at facilitating users' interaction with fellow designers. 

    "I felt included and very comfortable while working with Wealax."

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  • 29
    • $25,000+
    • 50 - 249 employees
    • Swindon, United Kingdom
    Ntegra is a web design agency. Their small team is in Swindon, United Kingdom. The firm provides web design, architectural design, IT strategy consulting, BI & big data consulting & SI, and more.

    Industries

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  • 30
    • $5,000+
    • 2 - 9 employees
    • Southampton, United Kingdom
    Semafor, a product design company, was established in 2018. The small Southampton, United Kingdom-based team provides product design, ux/ui design, and enterprise app modernization.

    Industries

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