Top 80 Application Modernization Companies in London

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Top 80 Application Modernization Companies in London

October 2022

Looking for a top legacy modernization service in London?

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. 

List of the Best London Enterprise Application Modernization Services

  • 1
    • Scheduling

      4.3
    • Quality

      4.6
    • Cost

      4.3
    • NPS

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

    CI&T (formerly CINQ Technologies) is software development company based in Curitiba, Brazil with additional offices in Brazil and Miami. Founded in 1992, the team of 271 specializes in custom software development, IT staff augmentation, and UX/UI design. They work primarily with enterprise clients in the transportation and financial services industries.

    Clients

    • SITA
    • Lenovo
    • iHeart Media
    • Panasonic

    Industries

    Notable Project

    CI&T (formerly CINQ Technologies) provided development support, augmenting the team of a software development organization. They migrated an out-of-date Java Applet-based application to a modern web-based platform.

    “I will always reach out to CI&T (formerly CINQ Technologies) as my first choice for development.”

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  • 2
    • $5,000+
    • 250 - 999 employees
    • London, United Kingdom

    Exato Software is a development agency based in Jaipur, India. They were founded in 2019 and have a team of around 10 employees. Their main services include custom software, web, and mobile app development for small businesses. 

    Clients

    • Mezatwins
    • Consumer Truth
    • Waggy Tail Petcare
    • Karachi Kitchen

    Industries

    Notable Project

    A car rental company tapped Exato Software to develop an easy-to-use website on .NET that would describe their services. They also optimized the website's SEO to improve its search engine rankings. 

    "Their professionalism was flawless, and they kept every promise diligently."

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  • 3
    • $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 is developing a youth marketing agency’s app. They’ve taken over from the in-house team that started the project. The app generates reports and is available on Android, iOS, and the web.

    "Intellectsoft’s communication is very efficient and clear."

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  • 4
    • Scheduling

      4.5
    • Quality

      4.8
    • Cost

      4.2
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Kin + Carta is a tech-centered management consultancy based in Chicago. Founded in 1964, they also have offices in London, San Francisco, New York, and Singapore. Their team of approximately 3,000 focuses primarily on enterprise clients in the financial services and health care fields. Services include mobile app development, cloud consulting, and more.

    Clients

    • AstraZeneca
    • Expedia
    • Santander
    • Barclays

    Industries

    Notable Project

    Kin + Carta worked with a cloud technology company on a data analytics pipeline optimization project. They built an improved pipeline program for a financial services client. 

    "Kin + Carta worked really hard to come up with the right solution and create the most value for the customer."

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  • 5
    • Scheduling

      4.6
    • Quality

      4.9
    • Cost

      4.4
    • NPS

      4.9
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    • $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

    A healthcare software development company hired Syntec for application testing services. The team was tasked with providing code and software reviews of one of the client's applications.

    "They were utterly professional and provided the resources required to deliver the end product."

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  • 6
    • Scheduling

      4.7
    • Quality

      5.0
    • Cost

      4.4
    • NPS

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

    Founded in 2007, MassMedia Group is a software development firm that offers custom software development, web development, CRM consultation, and SI to their small business, mid-market, and enterprise clients in the legal, financial, and business services industries. Their 250 employees are based out of Khmel'nyts'kyi, Ukraine.

    Clients

    • sket.io
    • Greek Capital Management
    • Pentroy

    Industries

    Notable Project

    Snotor (formerly MassMedia Group) developed a web application to streamline hospital documentation and medical charting. 

    "The app was developed within the arranged period of time."

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  • 7
    • Scheduling

      4.7
    • Quality

      4.7
    • Cost

      4.8
    • NPS

      5.0
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    • $25,000+
    • 50 - 249 employees
    • London, 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 developed a sophisticated Magento-integrated database for a data center equipment broker. Audacia delivered a high-performing database integrated with both the Magento build and Sage 200 ERP, and the site has had no unplanned downtime since partnering with them.

    "They were clear and transparent, which is important for project management. Their updates were good and they were fantastic communicators." — IT Security Manager, Hardware Broker

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  • 8
    • Scheduling

      4.2
    • Quality

      4.2
    • Cost

      4.3
    • NPS

      4.7
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    • $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 developed a comprehensive mobile strategy to drive sales. Focusing on the customer journey, they developed an app to serve as a daily companion to the existing weekly product.

    "Somo has done a great job of understanding what we do, who we are, and what our main KPIs are."

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  • 9
    • Scheduling

      4.5
    • Quality

      4.5
    • 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 was approached by a branding agency for assistance with the creation of online guides for global access. The product allows for seamless downloading of the guidelines from anywhere in the world, with an interface that's easy to use.

    "Because of the flexibility of their services and willingness to undertake a brand new product build, our partnership has been very exciting. We’ve worked with other development agencies in the past that stopped communicating with us after completing the work, but their team has stayed in touch." - Senior Account Manager, Branding Agency

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  • 10
    • $10,000+
    • 10 - 49 employees
    • London, 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

    Atlas - Clever Software developed an app for a corporate accounting firm. The firm wanted an app that would increase company engagement. Atlas - Clever Software handled everything development-wise. 

    "The app was very well received by our team, by the rest of the company, by the board members, and now our customers. It’s a unique offering that none of our competitors are able to contend with." – Head of Internal Delivery, Corporate Accounting Firm

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  • 11
    • 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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  • 12
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    TMotions Global Ltd is a custom software development firm established in 2004. The midsize team specializes in custom software development, enterprise app modernization, application management & support, and cloud consulting & SI. The firm is located in London , United Kingdom and Sahibzada Ajit Singh Nagar, India.

    Industries

    Notable Project

    An information business has partnered with TMotions Global Ltd to develop multiple websites and apps using Reach, Node.js, Drupal, and .NET technologies. The team helps in planning, scoping, building, and more.

    "They are always eager to impress and to deliver."

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  • 13
    • 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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  • 14
    • $50,000+
    • 50 - 249 employees
    • London, United Kingdom

    Marino Software is a mobile app development company located in Dublin, Ireland; Limerick, Ireland and Brooklyn, New York. The company specializes in mobile app development, ux/ui design, custom software development, and application testing and has a small team.The company was launched in 2006.

    Industries

    Notable Project

    Marino Software developed custom software for an IT services company. They were tasked with a WebRTC button that provides a voice connection to the company and a payment mechanism via Stripe for the backend.

    "They delivered on time and managed all the customer expectations in a professional and timely manner."

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  • 15
    • $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 developed an e-commerce web solution for a commodities trader. They delivered their work on time and exhibited a high-level of experience. 

    "The pricing is fair, and the team is reliable." – CSO, Commodities Trader

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  • 16
    • $10,000+
    • 10 - 49 employees
    • London, 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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  • 17
    • $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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  • 18
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.8
    • NPS

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

    Equinox IS is a software development firm based in London. The firm, founded in 2014, has a team of more than ten that provides custom software development, IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, AI, and enterprise app modernization services. Equinox IS serves small and midmarket companies in the financial services, business services, telecommunications, and IT. 

    Clients

    • Three Austria
    • Hay Bank
    • Innovatiqua
    • Orgware

    Industries

    Notable Project

    Equinox IS developed a core transaction processing infrastructure for a mobile-only neobank. This included the integration of a vendor’s fraud prevention system and data aggregation.

    "Their experience and skills, they also knew how to find a solution to a problem."

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  • 19
    • $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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  • 20
    • 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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  • 21
    • Undisclosed
    • 250 - 999 employees
    • London, United Kingdom

    ERP consulting and SI company Professional Advantage is in North Sydney, Australia. The midsize team offers ERP consulting and SI, cloud consulting & SI, BI & big data consulting & SI, cybersecurity, and more and was established in 1989.

    Industries

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  • 22
    • 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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  • 23
    • $10,000+
    • 250 - 999 employees
    • Slough, United Kingdom

    CoMakeIT is an enterprise app modernization company. Their midsize team is in Baarn, Netherlands; Hyderabad, India; Melbourne, Australia and Slough, United Kingdom. Their services include enterprise app modernization, custom software development, IT strategy consulting, and other application development. The agency was launched in 2008.

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  • 24
    • $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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  • 25
    • $250,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Founded in 2004, Infostretch is an application testing company. The large Santa Clara, California-based team focuses on application testing, enterprise app modernization, BI & big data consulting & SI, cloud consulting & SI, and more.

    Industries

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  • 26
    • 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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  • 27
    • Scheduling

      4.5
    • Quality

      4.8
    • Cost

      4.2
    • NPS

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

    Box UK was hired by an Employee Benefits Service to oversee and advise on the Service's new e-commerce platform. But their service was expanded to include the development of the platform, rewriting some parts in Symfony from the original CakePHP. The client was so satisfied with the work that Box UK is still onboard to supply new features on the platform as needed. 

    "Box UK has a very modern, agile approach and is good at looking at new methods of working." - Project Manager, Employee Benefits Service 

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  • 28
    • Undisclosed
    • 50 - 249 employees
    • London, United Kingdom

    Located in London, United Kingdom; Manchester, United Kingdom and Barcelona, Spain, Codurance Ltd is a custom software development company. The agency provides custom software development, enterprise app modernization, IT strategy consulting, cloud consulting & SI, and more and is midsize.The agency was founded in 2013.

    Industries

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  • 29
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    NaNLABS is a digital agency based in La Plata, Argentina with another office in Neuquén. Established in 2013, the company consists of around 25 employees who specialize in custom software development, mobile app development, and UX/UI design.

    Clients

    • Symantec
    • Flight Club
    • Fifth Wall
    • Cyber Cube

    Industries

    Notable Project

    NaNLABS aids the web app development efforts of a SaaS company. The team implements different software solutions using tools such as TypeScript, React, and AWS to build the app's functionalities.

    "NaNLABS is a professional team that easily translates our business ideas into feasible solutions."

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  • 30
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom

    Based in Seattle, Washington; San Fernando, Spain and London, United Kingdom, 47 Degrees is an enterprise app modernization company. The small team specializes in enterprise app modernization, BI & big data consulting & SI, cloud consulting & SI, and web development and was launched in 2010.

    Industries

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