Top 100 Software Development Companies in the United Kingdom
September 2023Looking 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. The best way is to continuously develop up-to-date software that allows your organization to maintain an impactful digital presence.
To assist you in your search for a partner, we’ve compiled this list of the top software development companies in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom Software Developers
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1
- $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.
Clients
- Kopona
- Brain.Health
- CityMunch
- Altus Investment Management Ltd
Industries
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Old.St Labs optimized the desktop booking tool of a transportation solutions company to make it mobile-responsive. Their work included revamping the customer journey from scratch and integrating several APIs.
"The team planned the project thoroughly."
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2
- $10,000+
- 10 - 49 employees
- Watford, United Kingdom
AppDrawn is a software solutions company founded in 1999. Their headquarters are in London and they have a second office in Barcelona. Across these 2 locations, they have a team of a dozen staff that do custom software development, web development, and mobile app development for small and medium-size businesses.
Clients
- Aspire Customer Communication Services
- Imagine Property Group
- Renteq Highways
- HSM
Industries
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Appdrawn Software Development helped an education company develop an English language testing platform, along with blended versions of the client's product. The goal was to ensure robustness and scalability.
"They worked collaboratively with project managers within the company to provide a clear plan at all stages."
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3
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Studio Graphene is a 90+ employee interdisciplinary team of strategists, designers, developers, and product managers. Studio Graphene is headquartered in London with studios in New Delhi, Lisbon, and Geneva. They collaborate with clients — from startups to established businesses — to define the details and specifications of projects, including custom software development, mobile app development, and UX/UI design.
Clients
- Diageo
- Nesta
- Harth
- Mars
Industries
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Studio Graphene provides software development for a financial services company's B2C product. They've handled UI/UX ownership and built desktop, mobile, and web applications. They primarily use React Native.
"There's a 'can do' positive attitude from all team members."
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4
- $25,000+
- 50 - 249 employees
- Croydon, United Kingdom
Founded in 2005 and headquartered in Croydon, UK, GoodCore Software specializes in bespoke software development. WIth a team of about 50 employees, the company offers web and mobile app development to startups and established businesses alike. Engagement options include fixed- cost and dedicated development teams.
Clients
- Printed Music Licensing
- Weight Loss Resources
- GC Business Finance
- XTracked Deliveries
Industries
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GoodCore developed a SaaS application for managing briefing programs and events for Fortune 100 companies. The team coded in React and Laravel for creating a web-based application. The application helped automate and streamline the management of corporate events, briefing programs and meetings.
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5
- $50,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 2010, Magora is a 50+ team of web and mobile app designers and developers based in London. Whether it’s B2B or B2C, the firm creates bespoke software that integrates with existing business solutions to enable user-centered interaction and scalable software architecture.
Clients
- Danone
- Unilever
- Toyota
- Royal College of Art
Industries
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Magora Systems was hired by a SaaS company to update their existing website. They updated the site's code and provided maintenance support.
"Their speed of work and the balance of price and value were impressive."
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6
- $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.
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Instil Software wrote an observability software's code that integrated with an existing Java environment. They’ve since expanded their role to include Java development.
"Great engineers are hard to find and the two we had working with us were clearly top-notch."
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7
- $50,000+
- 2 - 9 employees
- Gateshead, United Kingdom
ARCH is a digital solutions firm specializing in the design, development, and hosting of websites, mobile apps, and business systems. They also have extensive experience in e-commerce, intranet, e-learning, CMS and CRM systems. Founded in 2005 and headquartered in London, with an office in Gateshead, U.K., their team consists fo fewer than 10 employees.
Clients
- Nestle
- So Vegan
- NHS Engalnd
- SKIN
Industries
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ARCH developed a mobile app for an independent charity, mainly focusing on the app's UX. They initially had a discovery meeting to identify the client's goals and agreed on the project's scope and technology.
"The initial response has been great."
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8
- $10,000+
- 10 - 49 employees
- Milton Keynes, United Kingdom
PodTECH is a user experience design company in Milton Keynes, United Kingdom and Gurugram, India. The small team focuses on ux/ui design, IT strategy consulting, custom software development, web development, and more and was founded in 2009.Visit SiteClients
- Royal Bank of Scotland
- Yondrgroup
- UBS
- Voolta
Industries
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9
- $25,000+
- 250 - 999 employees
- Bridge of Don, United Kingdom
CSHARK is a software and product development company that helps enterprises with digital transformation and start-ups translate ideas into products. Founded in 2014, it currently has over 300 mid and senior developers on board. CSHARK creates web and mobile apps from scratch and consults companies from FinTech and RegTech sectors. According to the Financial Times ranking in 2019 and 2020, we were among the fastest-growing companies in Europe.
Clients
- Fenergo (Fintech)
- REGENHU (Biotech)
- VecCtor (Digital infrastructure for Industry 4.0)
- HTP J-1 Visa Programs
Industries
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CSHARK has provided an architecture and engineering company with custom software development services. They’ve used tools such as AWS, JavaScript, and Mapbox.
"They’ve been very thorough, asked the right questions, and challenged us in the right way."
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- $10,000+
- 1,000 - 9,999 employees
- Warszawa, Poland
Innowise Group is a custom software development company based in Warsaw, Poland. With more than 1000 specialists on board and 600 projects completed, they use cutting-edge technologies to transform their client's businesses. They are experts in designing and developing tech solutions that will help your company enhance its processes and increase customer satisfaction, thanks to their 15+ years of experience and extensive expertise. They create custom software to fit your unique requirements in terms of timeline, budget, and use case. They handle every step of the development process, from product concept and development to testing, deployment, and support. In addition to building custom software, we also excel in UX/UI design, IT strategy consulting, and staff augmentation.
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- $50,000+
- 250 - 999 employees
- San Francisco, CA
ArcTouch was founded in 2008 and has offices in San Francisco, Calif., New York, and Florianópolis, Brazil. They excel at app development, blockchain, and UX/UI design. They guide their enterprise clients through the app building process by defining a strategy for the best user experience, planning the visual design, developing and testing the prototype, and ensuring optimization and growth.
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- $25,000+
- 250 - 999 employees
- Claymont, DE
Binmile Technologies is a leading digital strategy and product engineering company based in India with offices globally and was founded in 2017. They have more than 200 employees that provide custom software, app development, web and e-commerce development, and app testing services with market-leading solutions. They expertly steer clients across the globe as they navigate their digital transformation powered by the latest technologies.
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10
- $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
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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
- $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
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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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Featured providers
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- $25,000+
- 50 - 249 employees
- L'viv, Ukraine
Leobit is a web and mobile application development company based in Lviv, Ukraine. Founded in 2014, their team of 114 specializes in IT staff augmentation beyond their development capabilities. They work with mid market and enterprise companies in the information technology, hospitality, health care, and e-commerce industries.
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- $5,000+
- 1,000 - 9,999 employees
- San Jose, CA
ExpertsFromIndia is a development company based in San Jose, Calif. They were founded in 2003 and have a team of around 800 employees. They primarily provide custom software development and SEO.
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- $10,000+
- 50 - 249 employees
- Cuernavaca, Mexico
Ancient Technology Group is a development agency founded in 2012. Their team of more than 10 people provides custom software, web, and mobile app development solutions from their office in Cuernavaca, Mexico. They work primarily with small and medium-sized businesses.
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12
- $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
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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
- $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
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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
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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
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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
- $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
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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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Featured providers
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- $10,000+
- 50 - 249 employees
- Toronto, Canada
CodeNinja is a global software services company that provides business consulting, information technology, and outsourcing services. The company, founded in 2015, has more than 200 employees and provides cloud services, custom software development, e-commerce, and nearshore dedicated teams. CodeNinja Inc. serves enterprise and other-sized companies in various industries that include financial services, energy & natural resources, medical etc.
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- $25,000+
- 50 - 249 employees
- Warszawa, Poland
Founded in 2018, Qodeca has focused on building management systems, user-facing applications, integrations, and server-side solutions on top of the latest IT solutions from Microsoft like .NET and Azure. With above 70 employees in Poland, they support all software product lifecycle stages by providing UX/UI design, custom software development, cloud, DevOps, and beyond services. They work mainly with middle-market clients and enterprises providing them with the whole toolset required to succeed.
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- $10,000+
- 10 - 49 employees
- Whiteley, United Kingdom
Chimpare is a small application development firm. In Whiteley, United Kingdom; New York, New York and Markham, Canada, the firm was launched in 2012. Their services include mobile app development, web development, e-commerce development, ux/ui design, and more.
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17
- $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
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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
- $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
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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
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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
- $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
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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
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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
- $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
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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
- $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
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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
- $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
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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.
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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
- $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
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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
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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
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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
- $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
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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
- $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.
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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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