Top Performance Testing Services in the United Kingdom
-
$5,000+$25 - $49 / hr10 - 49London, England
Services provided
Focus Areas
See all 31 projectsTHEY.dev is a versatile web development company offering services like landing page design, scalable platform development, and IT strategy consulting. Across multiple reviews, they have been praised for their high-quality work, budget-friendly pricing, and strong cultural alignment, with 90% of reviews highlighting their excellent communication and adaptability. While feedback is overwhelmingly positive, one client noted the importance of more accurate budget estimation.
-
$10,000+$50 - $99 / hr50 - 249Praha, Czech Republic
Services provided
Focus Areas
See all 20 projectsValor Software is a versatile software development company specializing in creating innovative, scalable solutions for diverse client projects, from mobile applications to complex backend systems. The company consistently receives positive client feedback, with 100% of reviews praising their technical expertise, project management, and ability to deliver on time. Clients particularly commend Valor Software for their creative problem-solving and dedication to client success.
-
UndisclosedUndisclosed1,000 - 9,999Buenos Aires, Argentina
Services provided
Focus Areas
Launched in 1997, Qualitest Group is a large Santa Clara, California-based Application Testing company. Their team offers Application Testing.
Read more -
$10,000+$25 - $49 / hr50 - 249London, England
Services provided
Focus Areas
See all 13 projectsTestFort QA Lab is a specialized company providing comprehensive QA Testing services, including Application Quality Assurance, Software Quality Testing, and App Validation. With a strong focus on software testing expertise, the company has been praised for reducing critical production bugs by over 40% and improving app stability, leading to 75-80% bug reduction. Reviews indicate high customer satisfaction with their professionalism, responsiveness, and ability to meet tight schedules.
-
$1,000+< $25 / hr1,000 - 9,999London, England
Services provided
Focus Areas
See all 4 projectsQualimatrix Technologies Pvt Ltd is a company specializing in comprehensive software testing services, including App Testing, QA Testing, and Software Validation. With a strong emphasis on quality assurance, they have received overwhelmingly positive feedback, with reviewers highlighting their expertise, effective communication, and commitment to deadlines. Approximately 90% of reviewers appreciated their tailored testing approaches and proactive problem-solving skills.
-
Undisclosed< $25 / hr10 - 49London, England
Services provided
Focus Areas
See all 6 projectsBlue Ripples Technologies is an application testing and software testing company that excels in providing automation solutions and integration services. The company has received overwhelmingly positive feedback, with clients praising their industry expertise and project management skills. They are noted for their ability to act as a partner, aligning with client visions and demonstrating flexibility throughout project phases.
-
$5,000+$25 - $49 / hr2 - 9Keynsham, England
Services provided
Focus Areas
See all 1 projectsTestology.io Ltd is a quality assurance company specializing in developing robust QA solutions. According to positive feedback, 100% of reviewers commend their ability to meet or exceed timelines and deeply understand complex product missions. Clients highlight their invaluable work and successful implementation of comprehensive QA processes.
-
$75,000+$50 - $99 / hr250 - 999London, England
Services provided
Focus Areas
See all 5 projectsTestinium is a distinguished company specializing in Software Testing and Application Quality Assurance services. Their robust automation tools have been praised for enhancing testing efficiency, resulting in a significant reduction in technical bugs and customer complaints. Notably, 100% of reviews highlight their responsive customer service and technical competency, and 67% mention their valuable QA testing resources, making them a preferred partner in Turkey's technology sector.
-
$5,000+< $25 / hr10 - 49Woking, England
Services provided
Focus Areas
See all 1 projectsTesting Frameworks Limited specializes in Application Quality Assurance, providing exceptional Software Testing services. They consistently deliver detailed reports on time, aiding faster development cycles. Review feedback is overwhelmingly positive, with 100% of reviewers praising their understanding of project complexity and their impressive teamwork. Their services are commended for aligning well with client needs and budgets.
-
$5,000+$25 - $49 / hr50 - 249Manchester, England
Services provided
Focus Areas
See all 1 projectsCodeArrest Softwares Private Limited is a technology company specializing in converting desktop functions into browser-based applications using Angular. The majority of feedback indicates satisfaction with their timely delivery and responsive communication, though 100% of reviewers suggest enhancing their QA processes to reduce defects.
-
UndisclosedUndisclosed1,000 - 9,999Sydney, Australia
Services provided
Focus Areas
Planit Testing is an Application Testing company. They were established in 1997, and their services include Application Testing and IT strategy consulting.
Read more -
$5,000+< $25 / hr10 - 49London, England
Services provided
Focus Areas
Launched in 2013, TAREENITY FZE LLC is an Application Testing company. Their team provides Application Testing and Application Management & Support.
Read more -
$10,000+$25 - $49 / hr50 - 249London, England
Services provided
Focus Areas
Established in 2016, ClicQA is a midsize Application Testing company. Their services include Application Testing.
Read more -
UndisclosedUndisclosed10 - 49London, England
Services provided
Focus Areas
360logica Software Testing Services is a Noida, India-based Application Testing company. The team provides Application Testing and Custom Software Development.
Read more -
UndisclosedUndisclosed50 - 249LE5 4LE, England
Services provided
Focus Areas
Infuse Consulting is a midsize Application Testing company. They focus on Application Testing and DevOps Managed Services and were founded in 2002.
Read more -
UndisclosedUndisclosed50 - 249London, England
Services provided
Focus Areas
Inspired Testing is a London, England-based Application Testing company. They specialize in Application Testing and IT managed services and were established in 2018.
Read more -
UndisclosedUndisclosed1,000 - 9,999Wien, Austria
Services provided
Focus Areas
Tricentis is an Application Testing company headquartered in Austin, Texas and Wien, Austria. They specialize in Application Testing and cloud consulting & SI and were founded in 2007.
Read more -
UndisclosedUndisclosed1,000 - 9,999Crawley, England
Services provided
Focus Areas
Spirent Communications is a Cybersecurity company in San Jose, California and Beijing, China. They offer Cybersecurity and IT managed services and were launched in 1936.
Read more -
UndisclosedUndisclosed50 - 249Basildon, England
Services provided
Focus Areas
Testing Minds is an Application Testing company launched in 2018. The company provides Application Testing.
Read more -
UndisclosedUndisclosed250 - 999Hasselt, Belgium
Services provided
Focus Areas
Resillion, an Application Testing company, was launched in 2022. The midsize team focuses on Application Testing and Computer Engineering.
Read more -
UndisclosedUndisclosed250 - 999London, England
Services provided
Focus Areas
Ten10 Group is a midsize Application Testing company. Founded in 2004, the team provides Application Testing and Artificial Intelligence.
Read more -
$5,000+Undisclosed2 - 9London, England
Services provided
Focus Areas
Mtest Labs is an Application Testing company. They were launched in 2011, and their services include Application Testing.
Read more -
UndisclosedUndisclosed250 - 999North Sydney, Australia
Services provided
Focus Areas
Located in North Sydney, Australia and London, England, iLAB is an Application Testing company. They offer Application Testing.
Read more -
UndisclosedUndisclosed250 - 999London, England
Services provided
Focus Areas
Sollers Consulting, a big data analytics company, offer BI & big data consulting & SI and cloud consulting & SI. They were founded in 2000.
Read more -
UndisclosedUndisclosed50 - 249Nether Poppleton, England
Services provided
Focus Areas
Established in 2002, Acutest (Part of Trustmarque) is a midsize Nether Poppleton, England-based Application Testing company. Their team specializes in Application Testing and UX/UI Design.
Read more -
UndisclosedUndisclosed50 - 249Edinburgh, Scotland
Services provided
Focus Areas
2i Testing is a midsize Edinburgh, Scotland-based Application Testing company. Their services include Application Testing.
Read more -
$25,000+$25 - $49 / hr10 - 49London, England
Services provided
Focus Areas
APPNETWISE is a Hyderabad, India-based IT strategy consulting company. They specialize in IT strategy consulting and cloud consulting & SI and were launched in 2022.
Read more -
$10,000+$50 - $99 / hr2 - 9London, England
Services provided
Focus Areas
IQspeaks L is an Application Testing company. Launched in 2015, the company is based in London, England. Their team specializes in Application Testing.
Read more -
UndisclosedUndisclosed2 - 9Accrington, England, England
Services provided
Focus Areas
Fortitude 17 Limited is a small Application Testing company. Founded in 2017, the team focuses on Application Testing and ERP consulting and SI.
Read more -
UndisclosedUndisclosed2 - 9City of London, England
Services provided
Focus Areas
ClicTest is an Application Testing company. Their small team is headquartered in City of London, England and offers Application Testing. The firm was established in 2013.
Read more -
UndisclosedUndisclosed50 - 249Telford, Shropshire, England
Services provided
Focus Areas
NFocus Testing, an Application Testing company, was established in 2000. The agency offers Application Testing and IT strategy consulting, and is midsize.
Read more -
UndisclosedUndisclosed50 - 249London, England
Services provided
Focus Areas
Launched in 2009, BEE Incorporations is a midsize Application Testing company based in Milano, Italy and London, England. Their team offers Application Testing.
Read more -
$1,000+$200 - $300 / hr10 - 49Burnham, England
Services provided
Focus Areas
Creative Computing Solutions is an ERP consulting and SI company. They were established in 1990, and their services include ERP consulting and SI and Application Management & Support.
Read more -
UndisclosedUndisclosed10 - 49London, England
Services provided
Focus Areas
Launched in 2016, Assured Thought, a small Application Testing company, is headquartered in London, England. Their team focuses on Application Testing and IT strategy consulting.
Read more -
UndisclosedUndisclosed250 - 999London, England
Services provided
Focus Areas
Insead Tech is a midsize e-commerce development company based in London, England. The team focuses on E-Commerce Development and ERP consulting and SI.
Read more -
UndisclosedUndisclosed1,000 - 9,999London, England
Services provided
Focus Areas
Genisys Group is an user experience company. Based in London, England and Bengaluru, India, the company offers UX/UI Design and IT strategy consulting.
Read more -
UndisclosedUndisclosed10 - 49Bristol, England
Services provided
Focus Areas
Moropo QA, an Application Testing company, was founded in 2022. The team provides Application Testing.
Read more -
UndisclosedUndisclosed10 - 49London, England
Services provided
Focus Areas
FGB studio, an Application Testing company, is based in Milan, Italy and London, England. Their services include Application Testing.
Read more -
UndisclosedUndisclosed10 - 49London, England
Services provided
Focus Areas
Based in London, England, Cinq Amis is an Application Testing company. Their services include Application Testing and IT managed services.
Read more -
$10,000+$50 - $99 / hr10 - 49Sheffield, England
Services provided
Focus Areas
DeeperThanBlue is a cloud consulting & SI company. They are located in Sheffield, England, and their services include cloud consulting & SI and E-Commerce Development.
Read more -
$50,000+$25 - $49 / hr10 - 49London, England
Services provided
Focus Areas
Momin Solutions is a business intelligence company founded in 2010. The agency focuses on BI & big data consulting & SI and cloud consulting & SI, and is small.
Read more -
UndisclosedUndisclosed2 - 9Glasgow, Scotland
Services provided
Focus Areas
Scapa Technologies is an Application Testing company. The team is based in Dun Laoghaire, Ireland and Glasgow, Scotland, and their services include Application Testing and IT strategy consulting.
Read more -
UndisclosedUndisclosed2 - 9Nelson, England
Services provided
Focus Areas
Blue Border Limited, an IT managed services company, is headquartered in Nelson, England and London, England. Launched in 2015, the team provides IT managed services and Application Testing.
Read more -
UndisclosedUndisclosed10 - 49Liverpool, England
Services provided
Focus Areas
Aspion is a Staffing company. They were launched in 2004, and their services include Staffing and Application Testing.
Read more -
UndisclosedUndisclosed10 - 49Coventry, England
Services provided
Focus Areas
SMQA Limited is a small ERP consulting and SI company based in Coventry, England. The team provides ERP consulting and SI and Cybersecurity.
Read more -
UndisclosedUndisclosedFreelancerLondon, England, England
Services provided
Focus Areas
TR Seeds Ltd is an Application Testing company. Established in 2019, their team focuses on Application Testing.
Read more -
UndisclosedUndisclosed10 - 49Hertfordshire, England, England
Services provided
Focus Areas
IOCO UK | iOCO Solutions Limited is a big data company founded in 2008. Located in Hertfordshire, England, England, the team offers BI & big data consulting & SI and cloud consulting & SI.
Read more -
UndisclosedUndisclosed2 - 9London, England
Services provided
Focus Areas
Located in London, England, TestPro Consulting Ltd is a small Cybersecurity company. Their services include Cybersecurity and Artificial Intelligence.
Read more -
UndisclosedUndisclosed50 - 249London, England
Services provided
Focus Areas
Sadup Softech, a web design company, was established in 2019. The team provides Web Design and UX/UI Design and is headquartered in Duluth, Georgia and Hyderabad, India.
Read more
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My Matches
Tell us what you need — we’ll match you with top agencies in minutes.
Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
List of the Top 9 United Kingdom Performance Testing Companies
-
$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
32.8/40.017.6/20 Reviews8.7/10 Clients & Experience6.5/10 Market PresenceService focus
100% Application Testing20% Performance Testing -
$10,000+$50 - $99 / hr50 - 249Lakewood, CO
Ability to deliver
38.4/40.018.6/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Application Testing10% Performance Testing90% Other -
$5,000+$25 - $49 / hr10 - 49London, England
Ability to deliver
35.2/40.018.6/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
10% Application Testing10% Performance Testing90% Other -
$1,000+< $25 / hr1,000 - 9,999Bengaluru, India
Ability to deliver
21.5/40.016.6/20 Reviews0/10 Clients & Experience4.9/10 Market PresenceService focus
50% Application Testing20% Performance Testing50% Other -
Undisclosed< $25 / hr10 - 49Thiruvananthapuram, India
Ability to deliver
31/40.015.8/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
10% Application Testing10% Performance Testing90% Other -
$5,000+$25 - $49 / hr2 - 9Keynsham, England
Ability to deliver
24.2/40.016.2/20 Reviews2.4/10 Clients & Experience5.6/10 Market PresenceService focus
100% Application Testing25% Performance Testing -
$75,000+$50 - $99 / hr250 - 999Istanbul, Türkiye
Ability to deliver
20.5/40.015.2/20 Reviews0/10 Clients & Experience5.3/10 Market PresenceService focus
40% Application Testing20% Performance Testing60% Other -
$5,000+< $25 / hr10 - 49Woking, England
Ability to deliver
23/40.016.2/20 Reviews2.8/10 Clients & Experience4/10 Market PresenceService focus
50% Application Testing10% Performance Testing50% Other -
$5,000+$25 - $49 / hr50 - 249Kota, India
Ability to deliver
20.6/40.014.8/20 Reviews1.2/10 Clients & Experience4.6/10 Market PresenceService focus
15% Application Testing10% Performance Testing85% Other -
UndisclosedUndisclosed1,000 - 9,999Santa Clara, CA
Ability to deliver
9.7/40.00/20 Reviews1.2/10 Clients & Experience8.5/10 Market PresenceService focus
100% Application Testing25% Performance Testing -
UndisclosedUndisclosed1,000 - 9,999Sydney, Australia
Ability to deliver
5.7/40.00/20 Reviews0/10 Clients & Experience5.7/10 Market PresenceService focus
50% Application Testing50% Performance Testing50% Other -
$5,000+< $25 / hr10 - 49Dubai, United Arab Emirates
Ability to deliver
8.7/40.00/20 Reviews4.2/10 Clients & Experience4.6/10 Market PresenceService focus
60% Application Testing10% Performance Testing40% Other -
$10,000+$25 - $49 / hr50 - 249Hyderabad, India
Ability to deliver
5.8/40.00/20 Reviews0.6/10 Clients & Experience5.2/10 Market PresenceService focus
100% Application Testing20% Performance Testing -
UndisclosedUndisclosed10 - 49Noida, India
Ability to deliver
5.8/40.00/20 Reviews0/10 Clients & Experience5.8/10 Market PresenceService focus
80% Application Testing20% Performance Testing20% Other -
UndisclosedUndisclosed50 - 249LE5 4LE, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
50% Application Testing50% Performance Testing50% Other -
UndisclosedUndisclosed50 - 249London, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
70% Application Testing50% Performance Testing30% Other -
UndisclosedUndisclosed1,000 - 9,999Austin, TX
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
50% Application Testing30% Performance Testing50% Other -
UndisclosedUndisclosed1,000 - 9,999San Jose, CA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
25% Application Testing35% Performance Testing75% Other -
UndisclosedUndisclosed50 - 249Basildon, England
Ability to deliver
4/40.00/20 Reviews0/10 Clients & Experience4/10 Market PresenceService focus
100% Application Testing20% Performance Testing -
UndisclosedUndisclosed250 - 999Birmingham, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
50% Application Testing30% Performance Testing50% Other -
UndisclosedUndisclosed250 - 999London, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
30% Application Testing30% Performance Testing70% Other -
$5,000+Undisclosed2 - 9London, England
Ability to deliver
4.6/40.00/20 Reviews0/10 Clients & Experience4.6/10 Market PresenceService focus
100% Application Testing15% Performance Testing -
UndisclosedUndisclosed250 - 999North Sydney, Australia
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
100% Application Testing20% Performance Testing -
UndisclosedUndisclosed250 - 999Warszawa, Poland
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
20% Application Testing60% Performance Testing80% Other