Top Performance Testing Services in the United Kingdom
48 Companies
List of the Top United Kingdom Performance Testing Companies
Sponsored
-
Valor Software
Premier VerifiedLook for Verified Providers
Clutch conducts a rigorous verification process, confirming a provider’s business registration, legal history, credit background, and client feedback to be legitimate, so you can trust their ability to deliver. Learn More
$10,000+$50 - $99 / hr50 - 249Praha, Czech RepublicServices provided
10% Application Testing10% Application Management & Support10% Custom Software Development +710% Enterprise App Modernization10% IT Staff Augmentation10% IT Strategy Consulting10% Mobile App Development10% UX/UI Design10% Web Design10% Web DevelopmentFocus Areas
10% Performance Testing10% Automation Testing10% Beta Testing +710% Compatibility Testing10% Compliance Testing10% Load Testing10% Localization Testing10% Manual Testing10% Reliability Testing10% Stress TestingSee 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.
Reviews mention Communicative
Valor Software received highly positive feedback regarding their communication. Clients noted their proactive approach to adjusting schedules for time zone differences, facilitating regular meetings, and utilizing tools like Jira and Slack for effective collaboration. One client emphasized that Valor's open communication and prompt responses to challenges contributed significantly to the project's success. Overall, the sentiment reflects a strong appreciation for Valor's communicative practices, enhancing project management and client satisfaction.-
Dating Mobile App Development for B2B SaaS Company
5.0 Dec 24, 2024One thing that really stood out was Valor Software's communication style. They weren't just sending generic updates - they were actually engaged in the project and came to us with ideas we hadn't even thought of. When we needed something tweaked or had concerns, they were super responsive and usually had solutions ready within hours.
Read Full Review -
Custom Software Dev & UX/UI Design for E-Commerce Co
5.0 Jan 13, 2025Valor Software project management style was refreshingly straightforward. The team was always accessible, and what I particularly appreciated was their ability to translate complex technical concepts into clear, actionable items. They maintained consistent communication without overwhelming us with unnecessary technical jargon.
Read Full Review
Was this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Valor Software has received positive feedback regarding their cost and value for money, with multiple clients highlighting that their pricing aligns well with budget constraints while delivering high-quality outcomes. For example, one client noted, 'Pricing fit our budget' and 'Good value for cost.' Another stated, 'They are affordable, which is very good.' Overall, clients appreciate the balance of quality and cost-effectiveness, with many expressing satisfaction over the return on investment from their projects.Was this helpful?
View projects from:
This provider is fluent in 1 language:
- English
See All Locations (6)London, England
Hatton Garden,5th Floor, Suite 23
London, England EC1N2 - 5
-
-
$5,000+$25 - $49 / hr10 - 49London, England
Services provided
10% Application Testing40% Custom Software Development30% UX/UI Design +210% IT Strategy Consulting10% Mobile App DevelopmentFocus Areas
10% Performance Testing50% Manual Testing30% Automation Testing +110% Load TestingSee all 30 projectsTH-EY is a versatile software development company with expertise in creating scalable web platforms, user interfaces, and cloud infrastructure. The company consistently receives positive feedback, with reviewers highlighting their expertise, excellent communication, and adaptability to client needs. Approximately 90% of reviews commend their ability to deliver projects on time and within budget, emphasizing their strong technical capabilities and collaborative approach.
1 of 1 reviews is 5 starsUnknown avg. project costRead 1 Recent ReviewReviewed 1 time in the past 6 months
In the past six months, client feedback for TH-EY has been largely positive, highlighting their expertise in developing scalable web platforms and effective project management. A Senior Advisor from a SaaS company noted their impressive design capabilities and timely delivery of a solid prototype, which facilitated client onboarding and a successful pre-seed funding round. While communication could be improved, overall sentiment reflects satisfaction with TH-EY's value and alignment with client goals.Was this helpful?
Industry Experience
TH-EY has demonstrated expertise in various industries, including Arts & Entertainment, Non-profit, Politics, Software, eCommerce, Real Estate, IT Services, Medical, Transportation, Education, Financial Services, and more. Feedback indicates strong project management, timely delivery, and effective communication. Clients noted the provider's ability to adapt to specific needs, propose innovative solutions, and maintain budget constraints. Overall, sentiment across industries is highly positive, positioning TH-EY as a versatile partner for tech development in diverse sectors.
Read All ReviewsSelect Industry to see insights
Beauty & Cosmetics Financial services Arts, entertainment & music Non-profit Politics eCommerce Real estate IT Services Business services Medical Transportation Other industries Education Consulting Human Resources Telecommunications Energy & natural resources Information technology Hospitality & leisure SoftwareWas this helpful?
More responsive than most other service providers
Get in TouchTH-EY is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
See All Locations (2)London, England
223 Leytonstone Road
London, England E15 1LN2 - 5
+44 (0) 783 378 5073
-
UndisclosedUndisclosed1,000 - 9,999London, England
Services provided
100% Application TestingFocus Areas
25% Performance Testing25% Load Testing20% Automation Testing +220% Compatibility Testing10% Manual TestingLaunched in 1997, Qualitest Group is a large Santa Clara, California-based Application Testing company. Their team offers Application Testing.
Read moreSee All Locations (5)London, England
Level 2, Equitable House 47 King William Street
London, England EC4R 9AF1001 - 2000
-
$1,000+< $25 / hr1,000 - 9,999London, England
Services provided
50% Application Testing50% IT Staff AugmentationFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingSee 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.
Reviews mention Proactive
Qualimatrix Technologies Pvt Ltd has received positive feedback for their proactive approach to project management. Clients highlighted the team's quick response to issues, with one noting that the project manager took charge immediately to resolve problems. Effective communication and thorough project planning were also praised, enabling timely delivery of results. Overall, the sentiment reflects a strong appreciation for their commitment to addressing client needs and enhancing project outcomes.-
Web & Mobile App Testing for Software Testing Services Co
5.0 Jun 22, 2023Effective project management by the QA team by managing project risks proactively. The team has conducted risk assessments, created mitigation strategies, and monitored risks throughout the project lifecycle. Proactive Problem Solving is one of the noteworthy factors that can make a QA company stand out.
Read Full Review
Was this helpful?
Industry Experience
Qualimatrix Technologies Pvt Ltd has demonstrated expertise primarily in the Financial Services and IT Services sectors. In Financial Services, they improved website quality and reduced issues by up to 35% post-release. In IT Services, they excelled in performance, security, and functional testing, leading to enhanced software quality and customer satisfaction. Overall, the sentiment is highly positive, highlighting their strong communication, project management, and ability to deliver tailored solutions, making them a suitable partner for clients in fintech and IT-related projects.
Read All ReviewsSelect Industry to see insights
Financial services IT ServicesWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently highlight Qualimatrix Technologies Pvt Ltd's competitive pricing and strong value for money. A co-founder of a fintech company noted that Qualimatrix 'offered an excellent team at a reasonable cost' and was chosen for their 'good value for cost.' Similarly, a QA Lead Architect emphasized that their 'pricing fit our budget' and reflected a 'great culture fit.' Overall, the sentiment regarding cost-effectiveness is overwhelmingly positive, with clients appreciating the quality of service relative to the investment.Was this helpful?
See All Locations (2)London, England
Grays Inn Road
London, England WC1X8BP101 - 150
-
-
Undisclosed< $25 / hr10 - 49London, England
Services provided
10% Application Testing40% Custom Software Development25% IoT Development +215% Digital Engineering10% Microservices Architecture ServicesFocus Areas
10% Performance Testing40% Automation Testing30% Manual Testing +210% Compliance Testing10% Reliability TestingSee 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.
1 of 1 Performance Testing reviews is 5 starsUnknown avg. project costPerformance Testing Experience
Blue Ripples Technologies has garnered positive feedback in Performance Testing, with 85% of reviewers praising their expertise and project management. Clients highlight their adaptability, industry knowledge, and effective communication, noting an impressive alignment with project goals. A recurring theme is their collaborative approach, which enhances product development. However, 15% of feedback suggests potential for broader platform diversification in the Oil and Gas sector. Overall, the sentiment is highly favorable, indicating a strong capability for delivering impactful solutions.
Read Most Recent ReviewWas this helpful?
1 of 1 Application Testing reviews are 5 stars1 new review for Application Testing in past 6 months$50,000 – $199,999 avg. project costRead 1 ReviewApplication Testing PROJECT HIGHLIGHT
Custom Software Development for Engineering Company
5.0 — Blue Ripples Technologies developed an automation system for an engineering firm. The scope included process automation, integration, instrumentation, software development, testing, and Read moreWas this helpful?
Industry Experience
Blue Ripples Technologies has demonstrated strong expertise across multiple industries, including Design, Insurance, Software, Energy & Natural Resources, and IT Services. Clients commend their technical proficiency, customer-centric approach, and effective project management. In Design, they improved battery testing efficiency; in Insurance, they successfully developed a complex mobile app for insurance sales; in Software, they created a comprehensive UI ecosystem; and in Energy, they provided automation solutions. Overall sentiment is highly positive, with clients noting their adaptability and commitment to co-creation.
Read All ReviewsSelect Industry to see insights
Design Insurance Software Energy & natural resources IT ServicesWas this helpful?
See All Locations (2)London, England
Greenside House, 50 Station Rd, Wood Green
London, England N22 7TP1
+44
-
$5,000+$25 - $49 / hr2 - 9Keynsham, England
Services provided
100% Application TestingFocus Areas
25% Performance Testing25% Automation Testing25% Compatibility Testing +125% Manual TestingSee 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.
Industry Experience
Testology.io Ltd has demonstrated strong expertise in the healthcare industry, particularly in providing comprehensive QA solutions. Clients have praised their ability to develop robust processes tailored to complex products, with an emphasis on meeting project timelines. The overall sentiment reflects a high level of satisfaction, highlighting their understanding of client needs and the positive impact on project outcomes. Potential clients in healthcare can expect reliable and effective QA support from Testology.io Ltd.
Read All ReviewsSelect Industry to see insights
HealthcareWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients have expressed satisfaction with Testology.io Ltd's pricing and overall value, noting that their services provided a robust QA solution that met project needs efficiently. One client highlighted the company's ability to understand complex product missions and deliver invaluable work, while another emphasized that all timelines were consistently met. Overall, the sentiment reflects a strong appreciation for the quality of work relative to the costs involved, indicating good value for money.Was this helpful?
See All Locations (1)Keynsham, England
53 High Street
Keynsham, England BS31 1DX1
+447963955051
-
$75,000+$50 - $99 / hr250 - 999Istanbul, Türkiye
Services provided
40% Application Testing20% Application Management & Support20% IT Managed Services +210% IT Staff Augmentation10% IT Strategy ConsultingFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingSee 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.
Reviews mention Helpful
Testinium has received positive feedback for their helpfulness and quick issue resolution. A client noted their satisfaction with Testinium's tools, specifically Loadium, and emphasized the ease of communication with the team. The client also appreciated the quality of the trained staff provided by Testinium, stating, "Anyone working with them won’t have any issues." Overall, the sentiment reflects a strong endorsement of Testinium's services and support.-
Application Testing for E-Commerce Marketplace
4.5 Mar 31, 2021The staff Testinium provides are already trained, and they follow up to see if there are any issues with the assigned resources. We haven’t had any problems though; the guys are performing well. They're helpful and quick to resolve any issues.
Read Full Review
Was this helpful?
Industry Experience
Testinium has demonstrated expertise across the Food & Beverages, IT Services, Retail, and Information Technology industries. Clients praised their testing automation tools, which significantly reduced bugs and improved application performance. In Food & Beverages, they achieved a 50% decrease in customer complaints. In IT Services and Retail, Testinium's QA processes supported e-commerce platforms during peak seasons. Overall, feedback highlights their strong project management, responsiveness, and hands-on approach, making them a suitable partner for companies seeking robust testing solutions.
Read All ReviewsSelect Industry to see insights
Food & Beverages IT Services Retail Information technologyWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients generally express satisfaction with Testinium's pricing, often highlighting its competitive edge over international alternatives. One e-commerce company noted superior pricing for similar functionalities, while another client invested $1.5 million, reflecting a significant commitment to their services. Overall, feedback indicates that Testinium delivers good value for money, particularly through effective project management and impactful testing solutions, which have led to measurable improvements in performance and a reduction in issues.Was this helpful?
See All Locations (2)Istanbul, Türkiye
Soganlık Yeni, Pamukkale Sk. No:11, Kartal
Istanbul, Türkiye 34880751 - 1000
+ 90 216 504 56 55
-
-
$5,000+< $25 / hr10 - 49Woking, England
Services provided
50% Application Testing50% IT Staff AugmentationFocus Areas
10% Performance Testing50% Automation Testing40% Manual TestingSee 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.
1 of 1 Application Testing reviews are 5 starsLess than $10,000 avg. project costRead 1 ReviewApplication Testing PROJECT HIGHLIGHT
Educational Platform Dev for Educational Company
5.0 — Testing Frameworks Limited is developing an educational platform for an educational company. The team is also responsible for the integration of AI, blockchain, and spatial computing. Read moreWas this helpful?
Industry Experience
Testing Frameworks Limited has received positive feedback primarily from the education sector, particularly for their work with innovative platforms integrating AI, Blockchain, and spatial computing. Clients noted their exceptional teamwork, timely deliveries, and thorough understanding of complex project requirements. The overall sentiment is highly favorable, highlighting the company's strengths in enhancing educational infrastructures, making them a suitable partner for clients within the education industry.
Read All ReviewsSelect Industry to see insights
EducationWas this helpful?
See All Locations (1)Woking, England
Nankeville Court
Woking, England GU22 7PU21 - 30
+44-7825344217
-
$5,000+$25 - $49 / hr50 - 249Manchester, England
Services provided
15% Application Testing30% Web Development15% Mobile App Development +510% AI Development10% Custom Software Development10% Low/No Code Development5% Search Engine Optimization5% UX/UI DesignFocus Areas
10% Performance Testing40% Automation Testing25% Manual Testing +310% Beta Testing10% Load Testing5% Reliability TestingSee 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.
Industry Experience
CodeArrest Softwares Private Limited has demonstrated its expertise primarily in the Government sector, specifically in automating municipal services. Clients commend their ability to transition complex desktop functions to web-based applications, highlighting their strong project management and timely delivery. Overall sentiment is positive, with strengths noted in collaboration and responsiveness. However, a need for improved quality assurance processes has been identified. This company appears to be well-suited for clients in the Government sector seeking software automation solutions.
Read All ReviewsSelect Industry to see insights
GovernmentWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients have noted that CodeArrest Softwares Private Limited offers competitive pricing that aligns well with their budgets, making them an attractive option for projects. One client specifically highlighted that their pricing fit within their financial constraints while also appreciating the company's values. Overall, the sentiment regarding value for money is positive, although there are suggestions for improved quality assurance to enhance the overall service experience.Was this helpful?
See All Locations (3)Manchester, England
39 Lytton Avenue
Manchester, England M8 0SQ10 - 15
+44 7436976632
-
$5,000+< $25 / hr10 - 49London, England
Services provided
60% Application Testing20% Application Management & Support20% DevOps Managed ServicesFocus Areas
10% Performance Testing20% Automation Testing20% Manual Testing +510% Compatibility Testing10% Load Testing10% Localization Testing10% Reliability Testing10% Stress TestingLaunched in 2013, TAREENITY FZE LLC is an Application Testing company. Their team provides Application Testing and Application Management & Support.
Read moreSee All Locations (3)London, England
32 Ashford Road, London
London, England E18 1JZ2 - 5
+923334099330
-
$10,000+$25 - $49 / hr50 - 249London, England
Services provided
100% Application TestingFocus Areas
20% Performance Testing80% Automation TestingEstablished in 2016, ClicQA is a midsize Application Testing company. Their services include Application Testing.
Read moreSee All Locations (2)London, England
32 Willoughby Road
London, England N8 0JG31 - 40
+44 208 090 2404
-
UndisclosedUndisclosed10 - 49London, England
Services provided
80% Application Testing10% Custom Software Development10% Web DevelopmentFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual Testing360logica Software Testing Services is a Noida, India-based Application Testing company. The team provides Application Testing and Custom Software Development.
Read moreSee All Locations (4)London, England
Suite 560 No 28 Old Brompton Rd., Kensington
London, England SW7 3SS+44 800 098
-
UndisclosedUndisclosed50 - 249LE5 4LE, England
Services provided
50% Application Testing30% DevOps Managed Services20% Computer EngineeringFocus Areas
50% Performance Testing50% Automation TestingInfuse Consulting is a midsize Application Testing company. They focus on Application Testing and DevOps Managed Services and were founded in 2002.
Read moreSee All Locations (2)LE5 4LE, England
Watergates Building 109 Coleman Road
LE5 4LE, England LE5 4LE21 - 30
+44.203.303.0581
-
UndisclosedUndisclosed50 - 249London, England
Services provided
70% Application Testing30% IT Managed ServicesFocus Areas
50% Performance Testing50% Automation TestingInspired Testing is a London, England-based Application Testing company. They specialize in Application Testing and IT managed services and were established in 2018.
Read moreSee All Locations (2)Johannesburg, South Africa
2 Venus Street Melrose Estate
Johannesburg, South Africa 2196201 - 250
+27.117.595.930
-
UndisclosedUndisclosed1,000 - 9,999London, England
Services provided
50% Application Testing10% AI Consulting10% Business Consulting +310% Cloud Consulting & SI10% Computer Engineering10% ERP Consulting and SIFocus Areas
30% Performance Testing40% Automation Testing30% Load TestingTricentis 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 moreSee All Locations (5)Wien, Austria
Leonard-Bernstein-Straße 10
Wien, Austria 1220201 - 250
+43.126.324.090
-
UndisclosedUndisclosed1,000 - 9,999San Jose, CA
Services provided
25% Application Testing25% Business Consulting25% Cybersecurity +125% IT Managed ServicesFocus Areas
35% Performance Testing35% Automation Testing30% Reliability TestingSpirent 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 moreSee All Locations (3)Crawley, England
Origin One 108 High Street,
Crawley, England RH10 1BD201 - 250
-
UndisclosedUndisclosed1,000 - 9,999Reading, England
Services provided
50% Application Testing10% AI Development10% Cloud Consulting & SI +310% DevOps Managed Services10% ERP Consulting and SI10% IT Strategy ConsultingFocus Areas
50% Performance Testing50% Automation TestingPlanit Testing is an Application Testing company. They were established in 1997, and their services include Application Testing and IT strategy consulting.
Read moreSee All Locations (4)Reading, England
Thames Tower, Level 2, Station Rd
Reading, England RG1 1LX151 - 200
+44.203.868.3948
-
UndisclosedUndisclosed50 - 249Basildon, England
Services provided
100% Application TestingFocus Areas
20% Performance Testing20% Automation Testing20% Compatibility Testing +220% Manual Testing20% Recovery TestingTesting Minds is an Application Testing company launched in 2018. The company provides Application Testing.
Read moreBasildon, England
33 Nobel Square
Basildon, England SS13 1LT21 - 30
1245790123
See All Locations (2)Basildon, England
33 Nobel Square
Basildon, England SS13 1LT21 - 30
-
UndisclosedUndisclosed250 - 999Birmingham, England
Services provided
50% Application Testing30% Computer Engineering20% CybersecurityFocus Areas
30% Performance Testing30% Compatibility Testing20% Automation Testing +120% Reliability TestingResillion, an Application Testing company, was launched in 2022. The midsize team focuses on Application Testing and Computer Engineering.
Read moreSee All Locations (2)Hasselt, Belgium
Kempische Steenweg 303
Hasselt, Belgium 3500151 - 200
-
UndisclosedUndisclosed250 - 999London, England
Services provided
30% Application Testing15% AI Development15% Computer Engineering +410% Business Continuity Management10% Cloud Consulting & SI10% DevOps Managed Services10% IT Strategy ConsultingFocus Areas
30% Performance Testing40% Automation Testing30% Compatibility TestingTen10 Group is a midsize Application Testing company. Founded in 2004, the team provides Application Testing and Artificial Intelligence.
Read moreSee All Locations (1)London, England
Upper Ground Floor, West Wing The Hop Exchange 26 Southwark Street
London, England SE1401 - 500
+44.(0)203.613.9792
-
$5,000+Undisclosed2 - 9London, England
Services provided
100% Application TestingFocus Areas
15% Performance Testing20% Automation Testing20% Localization Testing +315% Compatibility Testing15% Compliance Testing15% Manual TestingMtest Labs is an Application Testing company. They were launched in 2011, and their services include Application Testing.
Read moreSee All Locations (1)London, England
9 Edgecumbe Avenue
London, England NW9 4AT6 - 9
07574710788
-
UndisclosedUndisclosed250 - 999London, England
Services provided
100% Application TestingFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingLocated in North Sydney, Australia and London, England, iLAB is an Application Testing company. They offer Application Testing.
Read moreSee All Locations (3)London, England
Brook House, 10 Church Terrace, Richmond Upon Thames
London, England TW10 6SE1
-
UndisclosedUndisclosed250 - 999London, England
Services provided
20% Application Testing20% AI Consulting20% BI & Big Data Consulting & SI +220% Cloud Consulting & SI20% DevOps Managed ServicesFocus Areas
60% Performance Testing40% Automation TestingSollers Consulting, a big data analytics company, offer BI & big data consulting & SI and cloud consulting & SI. They were founded in 2000.
Read moreSee All Locations (10)Barcelona, Spain
Gran Via de les Corts Catalanes 645 (7th floor)
Barcelona, Spain 0801016 - 20
-
UndisclosedUndisclosed50 - 249Nether Poppleton, England
Services provided
70% Application Testing30% UX/UI DesignFocus Areas
30% Performance Testing40% Automation Testing30% Load TestingEstablished 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 moreSee All Locations (1)Nether Poppleton, England
Marlborough House, Westminster Place
Nether Poppleton, England YO26 6RW50 - 75
+44.845.2101.500
-
UndisclosedUndisclosed50 - 249Edinburgh, Scotland
Services provided
100% Application TestingFocus Areas
30% Performance Testing70% Automation Testing2i Testing is a midsize Edinburgh, Scotland-based Application Testing company. Their services include Application Testing.
Read moreSee All Locations (1)Edinburgh, Scotland
Ardmore House, 40 George Street
Edinburgh, Scotland EH2 2LE151 - 200
+44.131.220.6888
-
$25,000+$25 - $49 / hr10 - 49London, England
Services provided
20% Application Testing20% Cloud Consulting & SI20% Custom Software Development +220% IT Staff Augmentation20% IT Strategy ConsultingFocus Areas
15% Performance Testing30% Automation Testing20% Reliability Testing +315% Compatibility Testing10% Manual Testing10% Recovery TestingAPPNETWISE 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 moreSee All Locations (2)London, England
Clarence Avenue
London, England SW42 - 5
+44 7469882054
-
$10,000+$50 - $99 / hr2 - 9London, England
Services provided
100% Application TestingFocus Areas
10% Performance Testing40% Automation Testing20% Compliance Testing +220% Manual Testing10% Compatibility TestingIQspeaks L is an Application Testing company. Launched in 2015, the company is based in London, England. Their team specializes in Application Testing.
Read moreSee All Locations (1)London, England
51, St Barnabas Road, Woodford Green, IG8 7BY
London, England IG8 7DB2 - 5
+44 333 33 99 202
-
UndisclosedUndisclosed2 - 9Accrington, England, England
Services provided
60% Application Testing20% ERP Consulting and SI10% DevOps Managed Services +110% UX/UI DesignFocus Areas
50% Performance Testing50% Automation TestingFortitude 17 Limited is a small Application Testing company. Founded in 2017, the team focuses on Application Testing and ERP consulting and SI.
Read moreSee All Locations (1)Accrington, England, England
4-4a, Blackburn Road
Accrington, England, England BB5 1HD -
UndisclosedUndisclosed2 - 9City of London, England
Services provided
100% Application TestingFocus Areas
50% Performance Testing50% Automation TestingClicTest 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 moreSee All Locations (1)City of London, England
Studio 2, Hayes Business Studios. Off Coldharbour Lane , Hayes Campus, Hayes, Middlesex
City of London, England UB3 3BB1
-
UndisclosedUndisclosed50 - 249Telford, Shropshire, England
Services provided
40% Application Testing20% DevOps Managed Services20% IT Strategy Consulting +120% IoT DevelopmentFocus Areas
30% Performance Testing40% Automation Testing30% Load TestingNFocus Testing, an Application Testing company, was established in 2000. The agency offers Application Testing and IT strategy consulting, and is midsize.
Read moreSee All Locations (1)Telford, Shropshire, England
e-Innovation Centre, Priorslee
Telford, Shropshire, England TF2 9FT76 - 100
+44.370.242.6235
-
UndisclosedUndisclosed50 - 249London, England
Services provided
100% Application TestingFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingLaunched in 2009, BEE Incorporations is a midsize Application Testing company based in Milano, Italy and London, England. Their team offers Application Testing.
Read moreSee All Locations (2)Milano, Italy
Via Tristano Calco 2
Milano, Italy 201231
-
$1,000+$200 - $300 / hr10 - 49Burnham, England
Services provided
15% Application Testing25% ERP Consulting and SI20% Application Management & Support +410% AI Consulting10% Custom Software Development10% Other IT Consulting and SI10% Web DesignFocus Areas
20% Performance Testing65% Beta Testing15% Compatibility TestingCreative 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 moreSee All Locations (1)Burnham, England
1 The Courtyard, 73a High Street, Burnham, Buckinghamshire, SL1 7JX
Burnham, England SL1 7JX16 - 20
01628 660600
-
UndisclosedUndisclosed10 - 49London, England
Services provided
70% Application Testing30% IT Strategy ConsultingFocus Areas
30% Performance Testing70% Automation TestingLaunched 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 moreSee All Locations (1)London, England
124 City Road, Shoreditch
London, England EC1V 2NX21 - 30
+44.0208.064.1927
-
UndisclosedUndisclosed250 - 999London, England
Services provided
10% Application Testing40% E-Commerce Development20% ERP Consulting and SI +220% Web Development10% Social Media MarketingFocus Areas
100% Performance TestingInsead 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 moreSee All Locations (1)London, England
37 Kingswood
London, England NW6 6LS1
+44.752.064.3284
-
UndisclosedUndisclosed1,000 - 9,999London, England
Services provided
10% Application Testing10% AI Development10% Application Management & Support +710% Call Center Services10% Cloud Consulting & SI10% Computer Engineering10% IT Managed Services10% IT Strategy Consulting10% Robotics Process Automation10% UX/UI DesignFocus Areas
20% Performance Testing40% Automation Testing20% Load Testing +120% Stress TestingGenisys Group is an user experience company. Based in London, England and Bengaluru, India, the company offers UX/UI Design and IT strategy consulting.
Read moreSee All Locations (3)London, England
860 Garratt Lane
London, England SW17 0NB31 - 40
+44.207.959.5700
-
UndisclosedUndisclosed10 - 49Bristol, England
Services provided
100% Application TestingFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingMoropo QA, an Application Testing company, was founded in 2022. The team provides Application Testing.
Read moreSee All Locations (1)Bristol, England
Temple Gate
Bristol, England BS1 6QA6 - 9
00447772015183
-
UndisclosedUndisclosed10 - 49London, England
Services provided
100% Application TestingFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingFGB studio, an Application Testing company, is based in Milan, Italy and London, England. Their services include Application Testing.
Read moreSee All Locations (1)London, England
3 The Shrubberies, George Lane, South Woodford
London, England E18 1BD2 - 5
+44.75545.93399
-
UndisclosedUndisclosed10 - 49London, England
Services provided
40% Application Testing20% Blockchain Marketing20% IT Managed Services +120% Robotics Process AutomationFocus Areas
30% Performance Testing40% Automation Testing30% Manual TestingBased in London, England, Cinq Amis is an Application Testing company. Their services include Application Testing and IT managed services.
Read moreSee All Locations (1)London, England
107 Cheapside
London, England EC2V 6DN2 - 5
+44 20 3053 8689
-
$10,000+$50 - $99 / hr10 - 49Sheffield, England
Services provided
10% Application Testing20% AI Development20% Cloud Consulting & SI +420% E-Commerce Development10% Custom Software Development10% Mobile App Development10% Web DevelopmentFocus Areas
10% Performance Testing25% Compatibility Testing25% Stress Testing +410% Automation Testing10% Load Testing10% Manual Testing10% Reliability TestingDeeperThanBlue is a cloud consulting & SI company. They are located in Sheffield, England, and their services include cloud consulting & SI and E-Commerce Development.
Read moreSee All Locations (1)Sheffield, England
Terminal Warehouse 2, Victoria Quays, Wharf Street, Merchant Crescent
Sheffield, England S2 5SY21 - 30
+44 (0)114 399 2820
-
$50,000+$25 - $49 / hr10 - 49London, England
Services provided
10% Application Testing10% BI & Big Data Consulting & SI10% Cloud Consulting & SI +710% Custom Software Development10% DevOps Managed Services10% Enterprise App Modernization10% IT Staff Augmentation10% Mobile App Development10% Other Application Development10% Web DevelopmentFocus Areas
10% Performance Testing10% Automation Testing10% Beta Testing +710% Compatibility Testing10% Compliance Testing10% Load Testing10% Localization Testing10% Manual Testing10% Reliability Testing10% Stress TestingMomin 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 moreSee All Locations (1)London, England
1 Hartley Avenue
London, England E6 1NU2 - 5
+44 (0) 0203 743 8500
-
UndisclosedUndisclosed2 - 9Glasgow, Scotland
Services provided
80% Application Testing20% IT Strategy ConsultingFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingScapa 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 moreSee All Locations (1)Glasgow, Scotland
48 W George Street, Blythswood New Town
Glasgow, Scotland G2 1BP1
-
UndisclosedUndisclosed2 - 9Nelson, England
Services provided
20% Application Testing20% IT Managed Services10% Business Consulting +510% Cloud Consulting & SI10% Corporate Training & Coaching10% ERP Consulting and SI10% IT Strategy Consulting10% Market ResearchFocus Areas
40% Performance Testing40% Manual Testing20% Automation TestingBlue 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 moreSee All Locations (1)Nelson, England
The Innovation Centre, Brunswick Street
Nelson, England BB9 9DU1
+44(0) 330 133 1712
-
UndisclosedUndisclosed10 - 49Liverpool, England
Services provided
30% Application Testing40% Staffing30% RecruitingFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingAspion is a Staffing company. They were launched in 2004, and their services include Staffing and Application Testing.
Read moreSee All Locations (1)Liverpool, England
100 Old Hall St.
Liverpool, England L3 9QJ16 - 20
+4415.1209.2050
-
UndisclosedUndisclosed10 - 49Coventry, England
Services provided
15% Application Testing15% Cybersecurity15% ERP Consulting and SI +515% IT Managed Services10% Application Management & Support10% CRM Consulting and SI10% Corporate Training & Coaching10% IT Strategy ConsultingFocus Areas
30% Performance Testing40% Load Testing30% Stress TestingSMQA Limited is a small ERP consulting and SI company based in Coventry, England. The team provides ERP consulting and SI and Cybersecurity.
Read moreSee All Locations (1)Coventry, England
Techno Centre, Coventry University Technology Park, Puma Way
Coventry, England CV1 2TT21 - 30
+44.247.736.0190
-
UndisclosedUndisclosedFreelancerLondon, England, England
Services provided
100% Application TestingFocus Areas
20% Performance Testing20% Automation Testing20% Beta Testing +220% Manual Testing20% Stress TestingTR Seeds Ltd is an Application Testing company. Established in 2019, their team focuses on Application Testing.
Read moreSee All Locations (1)London, England, England
C/O The Accounting Crew, 85 Tottenham Court Road
London, England, England W1T 4TQ1
-
UndisclosedUndisclosed10 - 49Hertfordshire, England, England
Services provided
20% Application Testing20% AI Development20% BI & Big Data Consulting & SI +320% Custom Software Development10% Cloud Consulting & SI10% Web DesignFocus Areas
20% Performance Testing20% Compatibility Testing20% Load Testing +220% Localization Testing20% Manual TestingIOCO 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 moreSee All Locations (1)Hertfordshire, England, England
6-7 Castle Gate, Castle Street, Hertford
Hertfordshire, England, England SG14 1HH21 - 30
+44.118.206.2938
-
UndisclosedUndisclosed2 - 9London, England
Services provided
20% Application Testing20% AI Development20% Cybersecurity +220% DevOps Managed Services20% Robotics Process AutomationFocus Areas
20% Performance Testing20% Automation Testing20% Load Testing +220% Manual Testing20% Stress TestingLocated in London, England, TestPro Consulting Ltd is a small Cybersecurity company. Their services include Cybersecurity and Artificial Intelligence.
Read moreSee All Locations (1)London, England
124 City Rd
London, England EC1V 2NX6 - 9
London
-
UndisclosedUndisclosed50 - 249London, England
Services provided
10% Application Testing15% UX/UI Design15% Web Design +610% Mobile App Development10% Search Engine Optimization10% Social Media Marketing10% Staffing10% Video Marketing10% Web DevelopmentFocus Areas
15% Performance Testing15% Automation Testing15% Compliance Testing +515% Manual Testing10% Compatibility Testing10% Load Testing10% Reliability Testing10% Stress TestingSadup 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 moreSee All Locations (3)London, England
124 City Road,
London, England EC1V 2NX2 - 5
+44 785 784 9999
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My MatchesTell 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.
Rollover to see company insights or click a company below for more details.
A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.
By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More
Focus (x-axis)
Focus accounts for a company’s specialization within a certain service.
Ability to Deliver (y-axis)
Ability to Deliver considers three criteria:
- Client feedback and reviews
- Work experience and previous projects
- Market presence and reputation in the industry
List of the Top 8 United Kingdom Performance Testing Companies
-
$10,000+$50 - $99 / hr50 - 249Praha, Czech Republic
Ability to deliver
39.4/40.019.6/20 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
35.5/40.018.6/20 Reviews10/10 Clients & Experience6.9/10 Market PresenceService focus
10% Application Testing10% Performance Testing90% Other -
$1,000+< $25 / hr1,000 - 9,999London, England
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 - 49London, England
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
24.4/40.016.4/20 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 - 249Manchester, England
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 - 9,999London, England
Ability to deliver
9.7/40.00/20 Reviews1.2/10 Clients & Experience8.5/10 Market PresenceService focus
100% Application Testing25% Performance Testing -
$5,000+< $25 / hr10 - 49London, England
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 - 249London, England
Ability to deliver
5.8/40.00/20 Reviews0.6/10 Clients & Experience5.2/10 Market PresenceService focus
100% Application Testing20% Performance Testing -
UndisclosedUndisclosed10 - 49London, England
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 - 9,999London, England
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 -
UndisclosedUndisclosed1,000 - 9,999Reading, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
50% Application Testing50% Performance Testing50% 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 - 999London, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
100% Application Testing20% Performance Testing -
UndisclosedUndisclosed250 - 999London, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
20% Application Testing60% Performance Testing80% Other
Get matched with the 5 best-fit agencies for your project—in 4 minutes or less.