The 10 Best Application Modernization Companies in The United Kingdom - 2025 Reviews

Top Application Modernization Companies in The United Kingdom

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Elevate your business with cutting-edge Application Modernization services from the United Kingdom's leading tech innovators. Our curated selection showcases top-tier companies specializing in transforming legacy systems into agile, cloud-ready applications. Explore each firm's portfolio and client testimonials to discover their expertise in microservices, containerization, and cloud migration. Whether you need to enhance performance, improve scalability, or integrate AI capabilities, you'll find skilled partners to revolutionize your digital infrastructure. Sortlist allows you to post your modernization requirements, enabling UK's finest Application Modernization specialists to reach out with tailored solutions that align with your business objectives and technological vision.

Top Featured Application Modernization Companies

All Application Modernization Firms in The United Kingdom

  • 4.9
    (11 reviews)

    TRIARE unlocks IT potential of YOUR business

    Recommended
    TRIARE is a WEB and MOBILE software development company based in Europe. We are delighted to offer our services as your long-term partner, taking all technical matters off your shoulders and allowing you to focus on your business development. YOU WILL GET: ✔ In-house team . Work with a dedicated team that is 100% focused on your product and located in the same office. ✔ Efficiency & transparency , as our process is based on Scrum methodology and managed by certified Scrum Masters. ✔ Fast result. Working with us, you will get the first result in 1 week. ✔ High quality, as TRIARE has well-established processes of software development and experienced specialists. ✔ Full cycle development . Our company covers all stages of development, handling everything from Discovery and prototyping to Design, development, and maintenance. ✔ IP rights . From the very beginning, you are the only owner of the intellectual property of your project materials: source code, design, documentation, etc. ✔ Warranty period will be provided for your system for free. ASPECTS OF OUR MINDSET: - Focused on results. We are focused on the result of your business with an understanding of the real goals and KPIs that our team should achieve. - Solution Provider. It means that we always come to you with solutions, not with questions. We take all technical aspects of the project off your shoulders, allowing you to focus on the marketing and business strategies. - We go the extra mile. Being a proactive company, we always think and take a step ahead. TECHNOLOGIES WE USE: - Mobile app development: Kotlin, Java, Swift, Objective-C. - Cross-platform development: Flutter, React Native. - Web frameworks: Node.JS, React.JS, PHP, Ruby on Rails.
    Looking for work in Application Modernization
    Located in Greater London, United Kingdom (+3)
    From €10,000 for Application Modernization
    Worked in Energy & Oil (+18)
    Speaks English, Ukrainian
    51-200 members
  • 5
    (2 reviews)

    We specialise in building high-performance teams to power your entire marketing engine.

    A trusted UK agency of 20 years, our unique partnership model has been the foundation for our client's success. Working with brands all over the world, our dedicated digital teams have driven significant results for our clients tech platforms and performance marketing.
    Looking for work in Application Modernization
    Located in Warwickshire, United Kingdom
    From €10,000 for Application Modernization
    Worked in Others (+8)
    Speaks English
    11-50 members
  • 5
    (6 reviews)

    We build bespoke web and mobile solutions that fit your organisation perfectly.

    We build bespoke online products and mobile apps to help your business grow. We make it our business to understand yours. We're small, friendly and based in Cambridge, UK. Got an idea we can help deliver? A challenge you need help solving? You've just found your team.
    Looking for work in Application Modernization
    Located in Hardwick, United Kingdom
    From €5,000 for Application Modernization
    Worked in Music (+8)
    Speaks English
    1-10 members
  • 5
    (1 review)

    Your trusted partner for guaranteed software delivery

    Top awarded
    ELEKS is a trusted global company that provides full-cycle software engineering outsourcing services, from ideation to finished products.
    Looking for work in Application Modernization
    Located in Berlin, Germany (+15)
    From €20,000 for Application Modernization
    Worked in Energy & Oil (+10)
    Speaks English, French(+1)
    1001-5000 members
  • 5
    (1 review)

    We help businesses like you thrive online using our custom digital solutions.

    We specialise in app and web development , software solutions , and digital content creation. We work with well-known brands such as Hornby Hobbies and Tarmac as well as celebrities including Jim Moir , and small and medium-sized local businesses. Our clients like the fact that we are responsive, easy to work with, and completely focused on delivering results that make a difference. Web & Mobile App Development – Creating visually stunning websites and building robust, intuitive mobile applications. Custom Digital Platforms – Tailored development of CMS and platforms, including e-commerce solutions (WooCommerce, Shopify, Squarespace). Digital Marketing & SEO – Enhancing online visibility through targeted campaigns across social media, email, web, and search engines. E-learning & CPD Solutions – Development and conversion of CPD and e-learning into online solutions. Content Creation – High-quality image, photography, and video production to support your digital strategy.
    Looking for work in Application Modernization
    Located in Kent, United Kingdom
    From €1,000 for Application Modernization
    Worked in Toys (+3)
    Speaks English
    1-10 members
  • 5
    (1 review)

    ✔️ Hire Top Remote Software Developers

    Top awarded
    Dozens of US and UK tech-oriented companies trusted us and successfully established their remote software engineering teams with Echo. No AI matchmaking, no juniors pretending to be senior devs. Always quality over quantity!
    Looking for work in Application Modernization
    Located in Greater London, United Kingdom (+4)
    From €10,000 for Application Modernization
    Worked in Software & Computer Services (+8)
    Speaks English, Polish(+1)
    11-50 members
  • 4.9
    (13 reviews)

    "Empowering Your Digital Journey with Innovation and Excellence"

    Highly recommended
    At HitupUK we offer a comprehensive range of digital services designed to empower businesses and individuals in today's dynamic digital landscape. Our expertise spans from crafting standout mobile apps that deliver seamless user experiences to designing intuitive and engaging user interfaces. We excel in tailoring custom software solutions to tackle unique business challenges and creating websites that not only reflect your brand but also drive conversions. Our graphic design services enable us to convey complex messages in visually compelling ways. Moreover, our digital marketing strategies ensure you reach the right audience with personalized, value-driven content. We're dedicated to decoding data and providing actionable insights to fuel your digital dominance. With innovation and excellence at the core of every service, we're here to guide you towards digital success.
    Looking for work in Application Modernization
    Located in Berkshire, United Kingdom
    From €1,000 for Application Modernization
    Worked in Industrial Goods & Services (+2)
    Speaks English
    11-50 members
  • 5
    (3 reviews)

    Best Mobile App Development Agency in the UK

    Top awarded
    At Evangelist Apps, we're not just app developers; we're pioneers in crafting mobile solutions. Our ethos revolves around guiding clients with innovative solutions and industry best practices in specialized app development. Our journey in app development is marked by adherence to stringent quality standards and a commitment to delivering cost-effective, efficient, and high-quality solutions. Our portfolio boasts a diverse range of apps, each showcasing our ability to handle complex challenges with ease. We stand out as a dynamic app development company, boasting a skilled team and an impressive global client roster, including British Airways, BBC, UBS, KLM Airlines, Hastens, Virgin Money, News International, Channel 4, and BMJ. Our offshore development model not only ensures cost-effective solutions but also guarantees superior software quality. Why Us Over 2 decades of specialized expertise. A robust app development team. Cost-effective solutions without compromising quality. Agile methodology ensuring regular updates and builds. Comprehensive end-to-end project delivery. Our Expertise Proficient in developing apps across all platforms: Native iOS, Android and Cross Platform (React Native and Flutter) Develop user centric UX/UI designs Utilizing the latest app development toolkit and best practices. Dedicated to quality with specialized teams for testing, configuration management, and project management.
    Looking for work in Application Modernization
    Located in Hampshire, United Kingdom
    From €2,000 for Application Modernization
    Worked in Banking & Financials (+2)
    Speaks English
    11-50 members
  • 4.9
    (48 reviews)

    AWARD WINNING SEO & B2B LEAD GENERATION AGENCY

    Highly recommended
    Top awarded
    Pearl Lemon are a multi-award-winning SEO, Lead Generation, Content and Sales Agency based in London but serving clients Worldwide. We'd love to help you grow your company Tired of underperforming agencies? Want to close B2B and B2C deals? Looking for a company that is transparent? Someone who can guide you through the process from start to finish? Want to rank page 1/rank 1 of Google with white-hat links? Want to a team you can talk to daily, have weekly calls and understand EXACTLY what's going on? If any of this sounds like you - then we ABSOLUTELY need to talk. We'd love to help you with your online growth journey and see if we can achieve massive success together Book a call with Ion (pronounded E-on) to get started today: http://pearllemon.com/ion/ OR add him on Whatsapp directly: +44 7746 279127
    Looking for work in Application Modernization
    Located in London, United Kingdom (+2)
    From €3,000 for Application Modernization
    Worked in Food (+15)
    Speaks English, Hindi(+2)
    51-200 members
  • 5
    (6 reviews)

    PRODUCT DEVELOPMENT TAILORED FOR YOUR BUSINESS

    Recommended
    Magora is a Web & Mobile Development Company that offers digital services to businesses across a broad range of industries, including Pharma & Medtech, Edtech, eLearning and eCommerce. Whether a B2C or a B2B project, iOS or Android app, first of all, we take the time to understand your goals, your product and the end-user’s needs. Our software development cases are loved by users for their convenience and appreciated by customers for the real value they add to your business.
    Looking for work in Application Modernization
    Located in London, United Kingdom
    From €5,000 for Application Modernization
    Worked in Consumer Electronics (+9)
    Speaks English
    11-50 members
  • 5
    (6 reviews)

    High-impact digital products. Thoughtfully crafted solutions driven by data and creativity.

    Pixie Labs is a leading London-based digital product studio. We partner with ambitious organisations to design and build high-impact apps, platforms and digital tools. Whether you're at the ideation stage, need help with user-centric design, are ready to build a rock-solid platform or app, or want to improve an existing product - we can help. We'll partner with you to deliver a unique solution to achieve your unique business goals.
    Looking for work in Application Modernization
    Located in London, United Kingdom
    From €3,000 for Application Modernization
    Worked in Government & Administration (+6)
    Speaks English
    1-10 members
  • 5
    (5 reviews)

    We combine research, UX and technical strategy for outcome-focused innovation and transformation.

    Full Clarity is a Digital Product and Service Design Consultancy, bringing together research, UX design and technical strategy to deliver outcome-focused innovation and transformation. Our expertise has delivered impactful digital experiences for clients such as ITV, Harrods and Gov.uk, built on our tried and tested process to deeply learn, adapt and optimise for user needs. Whether working on new product development, platform modernisation or improving customer experiences, we deeply understand the challenges and opportunities to create intuitive solutions to complex problems.
    Looking for work in Application Modernization
    Located in Farnham, United Kingdom
    From €10,000 for Application Modernization
    Worked in Software & Computer Services (+4)
    Speaks English
    11-50 members
  • 5
    (6 reviews)

    An agency that combines the limitless creativity of art with the functionality of engineering.

    Highly recommended
    Epigra (ɛpɪɡrɑ) is derived from the Latin word "epigram", which means "a brief, interesting, memorable , and sometimes surprising statement ". Since 2009, we work as a team to create the best possible digital experiences for our clients and their customers by passionately believing, designing , developing and inspiring the values reflected by our brand identity. NOT JUST AN AGENCY... We're a multi-disciplinary team that wants to understand your business needs and deliver good results beyond your expectations. We believe in making progress , being creative and achieving significant outcomes through technology. We invest our nows and futures as today's innovations are tomorrow's standards and step by step we're getting closer to our goals. We identify and follow trends and technologies which can have an impact on our clients. We inspire through our obsession with quality and craftsmanship. We believe in aiming high when solving meaningful problems which will have a positive impact and we live in constant development to create value. For us, the future is built at the intersection of passion and great technology.
    Looking for work in Application Modernization
    Located in Şişli, Turkey (+1)
    From €3,000 for Application Modernization
    Worked in Government & Administration (+10)
    Speaks English, Turkish
    11-50 members
  • 5
    (1 review)

    CAMELSOFT YOUR PARTNER IN YOUR DIGITAL TRANSFORMATION JOURNEY

    CAMELSOFT is a full-service company that specializes in IT solutions and digitization. We help entrepreneurs and businesses market their ideas and turn them into real brands. We work with a dedicated team of experts in the field who prioritize customer needs and ensure that we meet and exceed customer expectations. go to our complete profile. : https://www.behance.net/camelsoft visite our website: https://www.camel-soft.com
    Looking for work in Application Modernization
    Located in Sousse, Tunisia (+3)
    From €1,000 for Application Modernization
    Worked in Video games (+10)
    Speaks English, Arabic(+2)
    11-50 members
  • (0 review)

    WE ARE VTS, A BOUTIQUE SOFTWARE ENGINEERING CONSULTANCY FIRM.

    VTS Software is an international technology team that plans, designs and enables bespoke software development and highly secure network solutions. We employ some of the brightest minds in the business to build innovative database systems, desktop- and web-applications and secure network systems, which not only meet our clients' every need today, but anticipate and prepare for the challenges of tomorrow. At VTS every project is a truly collaborative effort. We pride ourselves on building rewarding and enduring partnerships with our clients to support their strategic business goals – often offering support and advice way beyond that of our contractual remit. We have an excellent track record for providing mission critical applications and secure network solutions for the healthcare and financial sectors and are experienced at delivering cost-effective core systems for smaller organisations.
    Looking for work in Application Modernization
    Located in Greater Manchester, United Kingdom
    From €5,000 for Application Modernization
    Worked in Pharmaceuticals & Biotech (+6)
    Speaks English, Polish
    11-50 members
  • 5
    (5 reviews)

    Comprehensive software development from planning to maintenance.

    We are an international software development company that develops solutions in 4 different segments of cloud automation and has sales partners or subsidiaries in 12 countries in Europe. We use a wide variety of technologies to accommodate our customers' business needs, and we have a worldwide team of experts in each technology and every field to ensure the highest standard of possible services. What we mainly propose to our customers through our wide variety of services, is a strong solid standing in the digital world that we live in nowadays, as well as their operations running as smoothly as possible, maximizing their potential for success.
    Looking for work in Application Modernization
    Located in Budapest, Hungary (+3)
    From €1,000 for Application Modernization
    Worked in Political Organization (+10)
    Speaks English, German(+1)
    11-50 members
  • 5
    (8 reviews)

    Creative Studio Shaping Tomorrow's Marketing Today with 3D, AR, VR & AI

    Recommended
    At 3DVerso we see the future of sci-fi movies coming true: a three-dimensional internet blurring the lines between physical and digital realms. From developing apps and games to pioneering immersive marketing campaigns and new ways of storytelling, we're dedicated to serve as a bridge between the flat internet of today and the fully immersive three-dimensional internet of tomorrow. As a multidisciplinary team with 15+ years of experience, our mission is to help brands stand out Today.We achieve this by leveraging cutting edge technologies such as AR, VR, 3D & AI in unprecedented ways, tailored to our customers' needs that can break through the noise, increase engagement, boost marketing and sales.
    Looking for work in Application Modernization
    Located in Oxfordshire, United Kingdom
    From €1,000 for Application Modernization
    Worked in Clothing & Accessories (+6)
    Speaks English, French(+4)
    11-50 members
  • (0 review)

    Solving problems with powerful products

    383 Project is a digital product studio. We simplify life by solving problems with powerful products. We partner with the bold and the brave to transform your business. From developing futureproof digital strategies, to defining and validating ideas, to creating industry-leading digital products, platforms and services, our focus is on building the right thing, and building the thing right. Our team is made up of specialists in digital strategy, product management, UX and UI design, and engineering. Whether you need a strategic partner, want to outsource delivery, or are looking to augment and upskill your internal teams, we’ll work in partnership with you to deliver successful outcomes for your users and for your business.
    Looking for work in Application Modernization
    Located in Birmingham, United Kingdom
    From €3,000 for Application Modernization
    Worked in Transportation (+3)
    Speaks English
    11-50 members
  • (0 review)

    Building projects that make an impact, creating solutions that drive success...

    With over 250 successful projects and 180+ satisfied customers worldwide, we have a proven track record of delivering exceptional results. Our team of experts is dedicated to providing top-notch solutions that empower our clients' brands and drive their success. At Mudimedia, we are passionate about creating websites that make an impact and delivering results that exceed expectations. Have an idea? Let us make it happen.
    Looking for work in Application Modernization
    Located in Greater London, United Kingdom
    From €1,000 for Application Modernization
    Worked in Consumer Electronics (+2)
    Speaks English, Turkish
    11-50 members
  • 5
    (1 review)

    Digital Marketing, Hold The Bullsh*t

    We are Superhub, a 5 star rated (check us out on Google)marketing agency based in Devon, specialising in digital marketing, filming and film production, branding, social media, content, content channels on TikTok and YouTube. We have extensive mobile iOS and android application development experience, enabling us to create web platforms that move with technological advancements. Our team has all the skills you need to thrive in your industry. We know how to build digital strategies and content that engage with your audience, turning them from leads into customers!
    Looking for work in Application Modernization
    Located in Torbay, United Kingdom
    From €235 for Application Modernization
    Worked in Energy & Oil
    Speaks English, Hindi
    1-10 members
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