Looking for a top software QA company in the United Kingdom?

Hiring a software testing company is a necessity to both test and improve the services your company offers, especially in an increasingly digital world.

To assist you in your search for a partner, we’ve compiled this list of the top software testing companies in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs. If you need more support, tell us about your project, and we'll match you with recommended companies.

List of the Best United Kingdom Software QA Companies

  • 1
    $25,000+
    250 - 999 Employees
    Belfast United Kingdom

    Founded in 2009, Unosquare, LLC is headquartered in Lake Oswego, Ore. with other locations in Guadalajara, Mexico, and Belfast, U.K. With more than 600 employees, they provide software testing and development services, combined with their staff augmentation services to meet software engineering needs, using nearshore development professionals.

    Clients
    Vesta
    Harvard Business Publishing
    Foundation Medicine
    Edwards Lifesciences
    Industries
    Notable Project

    A caller ID company hired Unosquare, LLC to provide software engineering and QA resources. Assisting on various projects, Unosquare provided daily support in all aspects of application development.

    "I have been most impressed with the caliber of the technical resources provided by Unosquare." – Senior Director Software Engineering, Caller ID Company

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  • 2
    $10,000+
    250 - 999 Employees
    London United Kingdom

    Tremend Software Consulting is a software engineering company in Bucharest, Romania; Aliso Viejo, Calif.; and Brasov, Romania. Founded in 2005, they have about 337 employees that serve mostly midmarket and small-business clients in the financial, IT, and telecommunications sectors. Services include IT managed services, custom software development, and e-commerce development. 

    Clients
    Orange
    ING Bank
    Carrefour
    Actility
    Industries
    Notable Project

    Tremend Software Consulting handled mobile app and web development efforts for an independent media platform. They built a native app for iOS, Android, and web, comprising the partner's MVP. The partner had nothing but praise for the results of the engagement, and the solution met expectations. 

    "They are super flexible and they want to understand the need behind the project and they want to be a part of it." –Co-Founder, Independent Media Platform

  • 3
    business

    360logica Software Testing Services

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    Undisclosed
    10 - 49 Employees
    London United Kingdom

    360logica Software Testing Services is an offshore QA/testing consultancy based in Noida, India, with additional offices in London; Sunnyvale, Calif.; Jersey City, N.J.; and New Delhi. It was founded in 2007 and has more than 230 employees. Primarily offering app testing, the team also provides web development and custom software development services to clients in the IT, financial services, media, real estate, and telecommunications sectors.

    Industries
  • 4
    $5,000+
    2 - 9 Employees
    Harrow United Kingdom

    Testdel UK Ltd. Is a small application testing company. Launched in 2015, the team provides application testing, IT managed services, IT strategy consulting, and other IT consulting and SI. The firm is located in Harrow, United Kingdom and Chandigarh, India.

    Industries
    Notable Project

    A SaaS Company hired Testdel UK Ltd. for application testing to make an error-free product deployment. This involved a full understanding of the product through a complete document of requirement analysis.

    "They really understood what we wanted for our project and came up with suggestions for new features as well."

  • 5
    $25,000+
    10 - 49 Employees
    Leeds United Kingdom

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

    Clients
    O2
    TD Bank
    Enterprise Car Club
    Pfizer
    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

  • 6
    $50,000+
    10 - 49 Employees
    Manchester United Kingdom

    Founded in 2011, Indiespring is a development firm. Their team of around 20 employees is based in Manchester, United Kingdom. They focus on mobile app development, app marketing, and application testing.

    Clients
    More Than Car Insurance
    Nokia
    Royal Sun Alliance
    Alstom
    Notable Project

    Indiespring developed a mobile app for an online gambling platform. The team also built an accompanying website. They managed servers and third party relationships with clients.

    "They take criticism and direct feedback very well; they don’t get defensive." – CMO, Online Gambling Platform

  • 7
    $10,000+
    10 - 49 Employees
    Oadby United Kingdom

    Xibis is a web and mobile application development company based in Leicester, UK. It was founded in 1998 and employs a team of 27 that works on projects in web development, mobile app development, e-commerce development, and application testing.

    Clients
    Dunelm Mills
    Halfords
    Inteflora
    Forte Lubricants
    Industries
    Notable Project

    Xibis was hired by an automotive supply company to get its mobile app off the ground. Xibis created the visual design and back-end development for an iOS and Android compatible app, along with a corresponding mobile website. Xibis has now been commissioned to create a second website.

    "We’re really satisfied with the app. Within the first year of its launch, we were voted one of the top 500 apps by the Sunday Times. We were in the list for 2011 and 2012. So, we were really happy with it. " – Marketing Manager, Automotive Supply Company

  • 8
    $25,000+
    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
    Industries
    Notable Project

    Synetec is engaged in a development partnership with a voice AI firm. The client's backend database requires integration of voice AI algorithms and CRM data, for which Synetec uses Microsoft Azure and SQL. The client emphasized that Synetec's work has not produced any negative feedback, and the partnership is considered integral to their business.

    "What is most impressive and impactful of them being a small business is their flexibility and availability." — CEO, Voice AI Firm

  • 9
    $100,000+
    Freelancer
    London United Kingdom

    The London Software Testing Company is a boutique software testing consultancy based in London with an office in Warsaw, Poland. The consultancy, founded in 2014, has a team of less than ten that provides application testing, BI & big data counsulting & SI, business consulting, and HR services to enterprise and smaller-sized financial services companies and institutions.

    Clients
    The Depository Trust and Clearing Corporation (DTCC)
    SunGard Financial Systems - now FIS Global
    Impendium Systems - now Deutsche Borse Group
    Industries
    Notable Project

    A regulatory software company hired The London Software Testing Company to handle QA testing on software for European regulations that the company was developing. The scope included checking whether the specifications of individual user stories or items on the backlog were good enough for engineers to follow and pick up, designing the test cases, checking the implementation and if the right values and results were produced, and exploratory and regression testing. The London Software Testing Company accomplished these tasks and met all expectations.

    "I can rely on them because they always take responsibility for the things they work on." - Interim Program Director, Regulatory Software Company

  • 10
    Undisclosed
    2 - 9 Employees
    Bollington United Kingdom

    ACS is a software house based in Bollington, England, and founded in 2099. Their team of no more than 10 specializes in custom software development, mobile app development, and big data consulting solutions for clients in the fields of hospitality and healthcare.

    Clients
    The Manchester United Supporters Trust
    Sony Music
    EA
    Industries
    Notable Project

    ACS developed a website for an athletic nonprofit. ACS worked on the backend and content of the nonprofit’s website to make it more easily manageable. ACS’s work has left a positive impact on the nonprofit.

    “There’s a high level of trust between our company and ACS.” - Co-Founder, Athletic Nonprofit

  • 11
    $5,000+
    50 - 249 Employees
    Ilford United Kingdom

    Concetto Labs is a cross-platform mobile app development company founded in 2014. With headquarters in Ahmedabad, India and offices in the U.S., the U.K., and Canada, the team of about 50 employees does mobile app development, custom software development, and web development. 

    Industries
    Notable Project

    Concetto Labs developed a website and a bespoke web app for a vocalization startup. Deploying a detailed plan provided by the client, Concetto Labs created an MVP and managed the full platform after it went live. Their involvement helped the client grow their user base. 

    “We now have an MVP and clients signing up to it and using it.”

  • 12
    $5,000+
    2 - 9 Employees
    Dartford United Kingdom

    Ruvca Consulting is a consultancy founded in 2011 with fewer than 10 members. Based in Dartford, England, they are experts in custom software development and application testing solutions for clients in the financial, business, and IT services industries, among others.

    Clients
    PortfolioNinja
    Industries
    Notable Project

    Ruvca Consulting provided front-end development solutions for an investment bank. The bank needed assistance with various projects. Ruvca Consulting helped increase the bank’s APS time to market.

    “They understand priorities and delivers to your expectations.” - Head of GM eFX IT, Investment Bank

  • 13
    $5,000+
    250 - 999 Employees
    London United Kingdom

    Founded 2014 and headquartered in Los Angeles, Engineer.ai is a development company that works with midmarket and enterprise companies in the IT, retail, and financial industries. With two other locations in the UK and India, a team of 250 provides custom software development, mobile app development, application management, and artificial intelligence services to clients

    Clients
    Virgin
    Unite
    BBC Click
    MoodIt
    Industries
    Notable Project

    A non-profit organization partnered with Engineer.ai for app development and design for citizen to exchange information on locations to reduce accidents. They provided the client with UI/UX design, development, testing, and launch of the application for the client.

    “We had good and sincere discussions on issues and how to handle them. Engineer.ai is very experienced in these projects and presented solutions quickly, so we can move forward.” – Technology Strategist, Non-profit Organization

  • 14
    $10,000+
    50 - 249 Employees
    LONDON United Kingdom
    ICterra is a midsize software development firm. Located in ANKARA, Turkey; München, Germany; LONDON, United Kingdom and ISTANBUL, Turkey, the company was founded in 1991. Their services include custom software development, application management & support, Artificial Intelligence, IoT development, and more.
    Industries
    Notable Project

    ICterra provides ongoing application management and support for a telecommunications company. The team handles the design, implementation, and maintenance of the client's license management system components.

    "We had no problems in communication, coordination, and regular updates with any team members during the project."

  • 15
    $10,000+
    2 - 9 Employees
    London United Kingdom

    O'Dwyer Software is a London-based software company founded in 2014 with a team of more than two experts. They specialize in web development, custom software development, and application testing for clients ranging from small businesses to large firms.

    Clients
    Babylon Health
    Sky
    Mozilla
    Industries
    Notable Project

    O'Dwyer Software developed a dashboard for a computer software firm. The firm needed an internal system that managed their CI data, which was to be used for all their projects. O'Dwyer Software helped improve their tool, which was met with positive feedback.

    “They asked the right questions to make sure they were producing the right thing the first time.” - Team Lead, Computer Software Firm

  • 16
    $5,000+
    2 - 9 Employees
    Leeds United Kingdom

    Fish Percolator is a business process optimization consultancy and software design house based in Leeds, U.K. The company, founded in 2015, is a solo enterprise that provides custom software development, IT strategy consulting, web development, product design, and application testing services to small and midmarket companies. 

    Clients
    Noiiz
    Leeds City Council
    Improve Your Accent
    Pecan Deluxe
    Notable Project

    A strategic branding agency hired Fish Percolator to design and develop an analytics and measurement software application for use in the communcations industry. To date, the app is still in its early trials, but has been well-received by potential users. 

    "Their working methodology was second to none and the final output, superb." - Owner, Strategic Branding Agency

  • 17
    $10,000+
    50 - 249 Employees
    Birmingham United Kingdom

    Talentelgia Technologies is a software development agency located in Mohali, India. Founded in 2012, their team of specialists has since grown to 69. They offer custom software development, enterprise app modernization, and branding services to their clients.
     

    Clients
    Eventsfy
    WSID
    Delish Deliveries
    Industries
    Notable Project

    Talentelgia provided UX/UI design to a food delivery service. Utilizing programs such as Laravel 5.6, MariaDB, SCSS, and Bootstrap, they redesigned aspects of the client’s website to be more user-friendly. 
     

  • 18
    $5,000+
    50 - 249 Employees
    Sudbrooke United Kingdom

    Inncrewin Technologies is a software agency based in Bangalore, India, and founded in 2008. Their team of more than 50 offers custom software, web, and mobile app development solutions for small and mid-market firms in the fields of e-commerce, hospitality, and advertising.

    Clients
    Signature Flow
    MeetingSense
    SafeSend Tax Solution
    Industries
    Notable Project

    Inncrewin Technologies provided development services for an accounting software company. The company was looking for an Indian vendor to save up on development costs. The company is impressed with Inncrewin Technologies’ work.

    “They’re structured about their work and are quite flexible.” - CTO, Accounting Software Company

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

    Founded in 2018, Artecha is a development firm. Their team of around 5 employees is based in London, with additional offices in Kyiv, Ukraine and Milan They focus on web development, mobile app development, and application management.

    Clients
    Propertalis
    Notable Project

    Artecha developed a website for a real estate company. The team consulted on, built, and designed the platform. They also identified and created a brand identity for the client.

    "Our platform works good and looks really great. We have positive feedback from the users we’ve tested with." – Founder, Real Estate Company

  • 20
    $10,000+
    2 - 9 Employees
    Sutton United Kingdom

    Founded in 2016, Intuitech Technology Ltd is a development company based in Sutton, U.K. Their small team primarily works with enterprise clients in the IT field. They provide custom software, web, and mobile app development, in addition to application testing. 

    Clients
    Sainsbury's
    Vodafone
    HSBC
    Barclays
    Industries
    Notable Project

    Intuitech Technology Ltd provided development services for an e-commerce grocery store. They updated the client's existing infrastructure and added new functionalities to increase capacity and improve performance. 

    "Everything was done perfectly." – Senior Engineering Manager, Grocery Chain

  • 21
    $5,000+
    10 - 49 Employees
    Nottingham United Kingdom

    Eficaz Technology Solutions is a small software development company. Founded in 2012, the agency is headquartered in Thiruvananthapuram, India and Nottingham, United Kingdom. Their services include custom software development, web development, mobile app development, e-commerce development, and more.

    Industries
    Notable Project

    Eficaz Technology Solutions is developing a mobile fitness betting app for. The team is tasked with creating a draft out of a detailed business case, ironing it out, and developing the app in the final stages.

    "They were able to execute each stage of the build to exactly how I imagined it to be. "

  • 22
    $50,000+
    10 - 49 Employees
    Horsham United Kingdom

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

    Clients
    GritWell
    Eva Emteq
    Stage Scripts Ltd
    Industries
    Notable Project

    Automation Squared Ltd built a cloud storage system for a theatrical publisher. The solution — developed in PHP and Laravel — replaced a Microsoft Access database with 50,000-100,000 records and improved processes. The new database saved the client and their customers time. 

    "Their ability to develop my product without a user requirement saved us time." – Managing Director, Theatrical Publisher

  • 23
    Undisclosed
    10 - 49 Employees
    London United Kingdom
    Apptivation Mobile is a software development company. They offer custom software development, mobile app development, ux/ui design, application management & support, and more and were founded in 2012. Their small team is in London, United Kingdom.
  • 24
    Luminous Infoways Pvt. Ltd. Logo

    Luminous Infoways Pvt. Ltd.

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    Undisclosed
    50 - 249 Employees
    London United Kingdom
    Mobile & app marketing company Luminous Infoways Pvt. Ltd. Was established in 2001. The agency offers mobile & app marketing, web development, web design, e-commerce development, and more and has a midsize team. The agency is headquartered in Bhubaneswar, India; New Delhi, India and London, United Kingdom.
    Industries
  • 25
    Undisclosed
    1,000 - 9,999 Employees
    Bradley Stoke United Kingdom

    QualiTest Group is a large software testing and quality assurance testing company founded in 1997 and headquartered in Fairfield, Conn. They also have an office in Bradley Stoke, U.K. and a team of around 1200. 

    Clients
    Google
    Microsoft
    Notable Project

    QualiTest was hired by a network operator and internet service provider in Europe that services over 30 million connections across mobile, fixed, and wholesale networks. The client was in the process of becoming an Internet Protocol interconnect enabler and required QualiTest’s assistance to provide interoperability testing. Their solution ensured thorough testing of all systems, which saved time and cost.

  • 26
    $5,000+
    1,000 - 9,999 Employees
    London United Kingdom

    TestingXperts is a software testing and QA company based in Camp Hill, Pa. This 400-person firm offers testing for blockchain, mobile app, ERP, cloud, and data warehousing solutions. Founded in 1996, the team operates out of additional offices in London; Chandigarh, India; and Hyderabad, India.

    Clients
    TestPlant
    Query Surge
    Smart Bear
    Industries
    Notable Project

    TestingXperts provided regression testing for a financial services company. The team used the Selenium WebDriver to evaluate a casualty insurance platform. 

  • 27
    Undisclosed
    250 - 999 Employees
    Bellshill United Kingdom
    Edge Testing Solutions is a midsize IT strategy consulting and application testing company located in Bellshill , United Kingdom; Birmingham , United Kingdom; Manchester , United Kingdom and London , United Kingdom. They specialize in IT strategy consulting and application testing and were founded in 2007.
  • 28
    $10,000+
    50 - 249 Employees
    London United Kingdom

    ClicQA is a software testing firm headquartered in Hyderabad, India, with an additional office in London. It was founded in 2016 and has more than 60 employees. They offer application testing services specializing in function testing, automation testing, performance testing, and security testing. 

    Notable Project

    ClicQA performed functionality and usability testing for a payment portal that allows iOS and Android users to split their bills and make payments. The team improved the platform's usability and fixed bugs through a number of processes such as requirement gathering and analysis, test case preparation and review, mobile device test lab setup and execution, defect logging, and regression testing.

  • 29
    $5,000+
    2 - 9 Employees
    London United Kingdom
    Mtest Labs is a small application testing company established in 2011. Their team offers application testing. The agency is headquartered in London, United Kingdom.
    Industries
  • 30
    $1,000+
    10 - 49 Employees
    Ilford United Kingdom
    Application testing company QATTS was founded in 2019. Their small team is based in Madhapur, India and Ilford, United Kingdom. QATTS specializes in application testing.
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