Top 100 Software Development Companies in the United Kingdom

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Top 100 Software Development Companies in the United Kingdom

September 2023

Looking for a top software developer in the United Kingdom?

As the use of mobile and web apps rise, your business’s digital presence becomes even more important. The biggest challenge facing organizations is how they can keep up in the digital world. 

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List of the Best United Kingdom Software Developers

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  • 10
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 250 - 999 employees
    • Farnborough, United Kingdom

    One Beyond is a bespoke software development and digital transformation company headquartered in London with additional engineering centers in Madrid (Spain), Budapest & Szeged (Hungary) and Bucharest (Romania). Across international locations, they have a team of more than 350 individuals providing custom software, web and mobile application development and large- scale digital transformation to a diverse clientele.They support large established businesses, nonprofits, government organizations, and VC-funded startups

    Clients

    • Smith & Nephew
    • GAIL's Bakery
    • Costa Express
    • Pearson

    Industries

    Notable Project

    One Beyond (formerly DCSL GuideSmiths) developed a cloud-based web app for a contract company. The digital tool lets users define large construction projects and streamlines the procurement process for contractors.

    “Whenever there was a problem, they helped us come up with a solution.”

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  • 11
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

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

    Core Blue Ltd is a software engineering company based in London with an office in Plymouth, U.K. The company, founded in 2015, has a team of less than ten that provides custom software development, mobile app development, web development, and IoT development services to various companies.

    Clients

    • Bank of Kigali
    • Kuoni
    • SAP
    • PayPoint

    Industries

    Notable Project

    CoreBlue supported the development of a volunteering software marketplace for a digital products and services company. They provided a roadmap, created design prototypes in Figma, and built portals in React.

    "They took the time to understand the long-term plan for this platform."

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  • 12
    • Scheduling

      4.6
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 50 - 249 employees
    • Salford, 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. 

    Clients

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

    Industries

    Notable Project

    Picking up from a previous vendor, Digiryte developed a mobile app for an app development company. They're responsible for the app's maintenance and operational support.

    “Digiryte is always forthcoming with the best way to do things.”

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  • 13
    • Scheduling

      4.7
    • Quality

      4.9
    • Cost

      4.6
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $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.

    Clients

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

    Industries

    Notable Project

    Synetec developed a bespoke CRM system for a cybersecurity company. The team led a discovery phase, then built the system, including customer management and marketing automation features and an accounts API.

    "Synetec spent a lot of time understanding our business."

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  • 14
    • $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.

    Clients

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

    Industries

    Notable Project

    Influential Software has been hired by a healthcare training center to replace their legacy systems with more bespoke ones. The team has provided a tailored solution using .NET and a portal framework.

    "We are so impressed with the quality of work that was done."

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  • 15
    • $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

    A telecommunications company has hired Transparity Ballard Chalmers to help them improve their business-critical integrations in order to provide enhanced reporting, monitoring, and alerting.

    "They will tell you realistically what you can expect."

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  • 16
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.6
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • Edinburgh, United Kingdom

    Apadmi is a 140+ member mobile tech group specializing in app development, IoT, and consulting for big data, BI, and SI. Founded in 2009 and based in Manchester, UK, their team excels at helping organizations use technology to achieve a competitive advantage.

    Clients

    • BBC
    • Argos
    • Lexus
    • Range Rover

    Industries

    Notable Project

    Apadmi has developed an iOS and Android mobile app for a pizza restaurant where users can order food. The team provides their design, development, and testing expertise. They still develop and release features.

    “They’re fully engaged and supportive of the project.”

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  • 17
    • Scheduling

      4.6
    • Quality

      4.6
    • Cost

      4.4
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Bit Zesty is a custom software development firm. They provide custom software development, ux/ui design, web development, application management & support, and more and were launched in 2009. Their small team is London, United Kingdom-based.

    Clients

    • Oxford Medical Simulation
    • Trussell Trust (UK Foodbanks)
    • Queen's Awards for Enterprise
    • HMRC

    Industries

    Notable Project

    Bit Zesty is developing a healthcare recruitment agency’s software solution. They’ve conducted discovery sessions before building the tool using Ruby on Rails. They’re currently maintaining the app.

    "They understand the pulse of the customer and do not hesitate to make recommendations."

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  • 18
    • Scheduling

      4.5
    • Quality

      4.7
    • Cost

      4.8
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $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.

    Clients

    • ARM INC
    • Vonage
    • British Council
    • BBC

    Industries

    Notable Project

    Innovify was hired by a software development company for app and website development services. The team ensured that both the app and website were seamlessly integrated across different platforms.

    "Their technical expertise and ability to understand our goal were outstanding."

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  • 19
    • $50,000+
    • 10 - 49 employees
    • London, United Kingdom

    Steadfast Collective is a custom software development company established in 2014. The small team focuses on custom software development, web development, and e-commerce development. The agency is located in London, United Kingdom.

    Clients

    • National Caravan Council
    • Suffolk Libraries
    • Elemis
    • Love it Stitch It

    Industries

    Notable Project

    Steadfast Collective designed and developed a website for a theatrical design company. They collaborated with internal brand designers and provided insights on social media advertising and online marketing.

    "They listened to us throughout the entire project."

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  • 20
    • Scheduling

      4.7
    • Quality

      4.8
    • Cost

      4.4
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom

    Plug & Play is a UX/UI agency based in London and Surrey. Founded in 2007, they are specialists in user experience and user interface design for software, websites and custom applications. They also have a front-end development service to support clients with the design implementation. Plug & Play work across a number of sectors with their clients ranging from funded startups to large corporations such as Legal & General.

    Clients

    • WWF
    • Mercer
    • Legal & General
    • Utility Warehouse

    Industries

    Notable Project

    A land mapping business hired Plug & Play to design their mobile application using Adobe. They assisted the client with narrowing down the scope of the project before presenting and implementing the designs.

    “Overall, we had a very positive experience working with them.”

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  • 21
    • $25,000+
    • 2 - 9 employees
    • SHEFFIELD, United Kingdom

    Inflecto Systems, a software development company, is located in SHEFFIELD, United Kingdom. The firm provides custom software development, mobile app development, and business consulting and has a small team.The firm was founded in 2006.

    Industries

    Notable Project

    A payment management system hired Inflecto Systems to provide custom software development and web hosting. Based on the client's requirements and feedback, they're building the system from scratch using Blazor.

    ''We're happy with what they've delivered.''

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  • 22
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.4
    • NPS

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

    3 SIDED CUBE is an accredited app development and digital product agency headquartered in Bournemouth, England with additional locations in London, Chicago, and Washington, DC. Since their ambitious beginning in 2009, the team of about 38 has collaborated with startups and international organizations, reaching over 87 countries and more than 100 million global downloads. In addition to mobile app development, they also provide UX/UI design services to inspirational organizations.

    Clients

    • American Red Cross
    • UNHCR
    • Global Forest Watch
    • UNESCO

    Industries

    Notable Project

    A government organization hired 3 SIDED CUBE to provide mobile app design and development. With the help of an R&D process, they're creating a gaming app to help engage young people in combating climate change.

    "They're a passionate, enthusiastic, and young team."

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  • 23
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.0
    • NPS

      4.5
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 50 - 249 employees
    • Lurgan, United Kingdom

    GCD is a custom software development company. Established in 1999, the team specializes in custom software development, ux/ui design, application management & support, mobile app development, and more. Their small company is Lurgan, United Kingdom-based.

    Industries

    Notable Project

    GCD has developed a library’s WordPress website and their digital platform in PHP with a CollectionIndex+ API. The two platforms are integrated, allowing users to browse the client’s collection on the frontend. 

    “GCD is approachable and easy to work with.”

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  • 24
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Great Baddow, United Kingdom

    Objective is a software development firm. The small Great Baddow, United Kingdom-based team provides custom software development, BI & big data consulting & SI, Artificial Intelligence, conversion optimization, and more. The agency was launched in 1987.

    Clients

    • Epson
    • International Institute for Strategic Studies
    • Chelmer Housing Association
    • TTP - The Technology Partnership

    Industries

    Notable Project

    A bicycle wholesale bicycle distributor hired Objective to develop a custom B2B website that integrates with their Sage 200 accounting software. The site enables customers to view products and place orders.

    "They were always super helpful and often went above and beyond to help deliver our requirements."

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  • 25
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    BN Solutions Inc is a web design agency and user experience company. Their midsize team is located in Sheridan, Wyoming. The company focuses on web design and ux/ui design.

    Industries

    Notable Project

    BN Solutions Inc provides ongoing UI/UX and product design services for a digital behavioral change company. The team is responsible for full stack design ownership, optimization, and more.

    "We value their contributions tremendously; our product is better because of their efforts."

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  • 26
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Powercode is a web development agency based in Kyiv, Ukraine founded in 2015. They are operated by a team of 66 who are experts in web, mobile app, and custom software development for clients ranging from startups to enterprises. They have experience working in industries such as financial services, business services, and IT. They are also familiar with working with platforms like Amazon, Linux servers, and Azure, among others.

    Industries

    Notable Project

    Powercode developed websites for a nonprofit organization's customers. They also handled CRM integration into the email system. 

    "Their open and transparent communication and a keen eye for detail took away all my worries."

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  • 27
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom

    CM System Designs is a software company based in Dorking, England, and founded in 2017. Their team of more than two offers custom software and web development solutions for small and mid-market firms alike.

    Clients

    • PizzaExpress
    • e-shot
    • The BALANCE Saddle Company Ltd
    • Franklin Commercial

    Industries

    Notable Project

    CM System Designs has been hired to revamp the website of a corporate training company, making it more user-friendly, secure, SEO-friendly, and visually pleasing.

    "They've been a pleasure to work with."

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  • 28
    • $100,000+
    • 10 - 49 employees
    • Sarratt, United Kingdom

    Clock Limited is a digital design and build company. Founded in 1997, the company is headquartered in Kings Langley, United Kingdom. They have a team of around 35 employees who focus on custom software, web, and mobile app development.

    Clients

    • International Tennis Federation
    • Leicester Tigers
    • Northampton Saints
    • Wall Street Journal

    Industries

    Notable Project

    Clock Limited designed and developed a website and mobile app for a subscription service company. The goal was to increase membership engagement and growth.

    "The process was incredibly smooth. The entire team was very prepared at all times."

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  • 29
    • Scheduling

      4.8
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom

    56 Degrees is a web development agency with a team of under 10 employees. Based in London and founded in 2010, they provide web development, web design, and e-commerce development services. 

    Clients

    • GiffGaff Studio
    • Budweiser
    • ZAK
    • Hamson Barron Smith

    Notable Project

    56 Degrees developed two multilingual campaign websites for a creative branding agency. They also created two pre-launch landing pages to help with early brand engagement and lead generation.

    "They're a lovely and fun team of people to work with."

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  • 30
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Zerocoder is a London, United Kingdom-based software development firm. The large firm was founded in 2023. Their services include custom software development, web development, mobile app development, web design, and more.

    Industries

    Notable Project

    Zerocoder developed a licensing module for a cloud solutions firm. The team focused on implementing a user-friendly interface, an admin portal, and a notifications feature.

    "We felt confident throughout the project that we were in good hands."

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