Top Performance Testing Services in London
35 Companies
List of the Top London Performance Testing Companies
Sponsored
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THEY.dev
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$5,000+$25 - $49 / hr10 - 49London, EnglandServices 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 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.
Industry Experience
TH-EY has demonstrated expertise across various industries including SaaS, Arts, Non-profit, Politics, eCommerce, Real Estate, Medical, and Education. Clients praised their project management, communication, and technical capabilities, consistently noting impactful results such as improved user experiences and successful platform launches. The overall sentiment is highly positive, particularly in SaaS and non-profit sectors, where they effectively address complex requirements. Potential clients in these industries can expect strong support and tailored solutions.
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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 Advertising & marketing SoftwareWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently praised the company's cost-effectiveness and value for money, with many citing their competitive pricing and alignment with project budgets. One client noted, "TH-EY provided good value for cost," while another emphasized that their "pricing fit our budget." Overall sentiment reflects satisfaction with the balance between quality and affordability, with several reviews highlighting the transparent and responsive nature of their project management, ensuring that deliverables met expectations within agreed financial parameters.Was this helpful?
More responsive than most other service providers
Get in TouchTHEY.dev is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
Review Rating from London Clients
5.0/5.0
Quality
4.9
Schedule
4.9
Cost
4.9
Willing to Refer
5.0
London-based reviewers highlight THEY.dev's expertise in full-stack development, UI/UX design, and complex software solutions across diverse projects like platforms, dashboards, and apps. Clients praise their technical proficiency, responsiveness, and ability to deliver within budget, often working closely with founders and maintaining excellent communication.Read All Reviews -
$10,000+$50 - $99 / hr50 - 249London, England
Services 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.
Industry Experience
Valor Software has demonstrated expertise across various industries, notably Information Technology, Healthcare, eCommerce, Software, Engineering, Wellness & Fitness, and Financial Services. Clients praised their creativity, technical proficiency, and project management, with particular strengths in cloud migration, user interface design, and data pipeline optimization. Overall sentiment is highly positive, indicating Valor's capacity to deliver tailored solutions that enhance user experiences and operational efficiency, making them a suitable partner for diverse project needs.
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Information technology Healthcare eCommerce Software Engineering Other industries Transportation Wellness & Fitness Advertising & marketing IT Services Financial servicesWas 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?
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This provider is fluent in 1 language:
- English
See All Locations (6)London, England
Hatton Garden,5th Floor, Suite 23
London, England EC1N2 - 5
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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
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$10,000+$25 - $49 / hr50 - 249London, England
Services provided
100% Application TestingFocus Areas
20% Performance Testing40% Automation Testing20% Manual Testing +210% Compatibility Testing10% Load TestingSee all 12 projectsTestFort QA Lab specializes in software testing services, offering comprehensive application quality assurance and software validation expertise. The firm receives overwhelmingly positive feedback, with clients highlighting their flexibility, responsiveness, and proficiency in QA testing and application testing across diverse platforms. Approximately 80% of reviewers commend their attention to detail and proactive communication, facilitating smooth project execution and successful outcomes.
Reviews mention Unique expertise
Clients consistently commend TestFort QA Lab for their unique expertise, particularly in mobile QA and financial application testing. One client highlighted their 'depth of expertise' and 'proficiency in security-focused automated testing,' which provided significant value during complex projects. Another praised their 'thoroughness in testing' and 'clear, detailed reporting,' emphasizing that their commitment to quality assurance made them a strong partner. Overall, the sentiment reflects a high level of satisfaction with TestFort's specialized skill set and effective project management.-
Application Testing for Software Cost Management Co
5.0 Jul 17, 2024We were definitely impressed with the team’s expertise. They know what they’re doing and they have extensive testing coverage, allowing them to spot and address even the most subtle issues that could’ve been missed easily. We also loved how the whole process was organized and managed. The team is proactive and highly knowledgeable.
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QA & Application Testing for Software Company
5.0 Mar 3, 2025TestFort’s depth of expertise in mobile QA specifically tailored for financial apps stood out. Their proficiency in security-focused automated testing delivered clear value, especially their proactive suggestions that improved our internal QA processes.
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QA & Testing Services for Smart Device Management Platform
5.0 Apr 16, 2025I am impressed by their thoroughness in testing and clear, detailed reporting, which made it easy for our development team to address issues quickly. Their expertise, attention to detail, and commitment to delivering reliable results make them a strong partner for any organization seeking to enhance its quality assurance processes.
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Industry Experience
TestFort QA Lab has demonstrated extensive expertise across various industries including finance, healthcare, advertising, and technology. Clients commend their thorough testing processes, particularly in mobile applications and financial services, highlighting significant improvements in software quality and stability. The overall sentiment is highly positive, particularly in sectors where quality assurance is critical, such as financial services and healthcare. Their strengths lie in responsiveness, project management, and a proactive approach to enhancing product reliability, making them a strong partner for organizations seeking rigorous QA support.
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IT Services Software Financial services Advertising & marketing Consulting Other industriesWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently highlighted TestFort QA Lab's excellent value for money, noting that their pricing fit within budgets while delivering high-quality results. For instance, one client remarked on their 'good value for cost' and another emphasized their 'pricing fit our budget.' Overall, sentiment surrounding costs was positive, with multiple clients expressing satisfaction with the return on investment and the quality of services provided.Was this helpful?
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$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.
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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.
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Financial services IT ServicesWas this helpful?
2 of 2 London-based reviews are 5 stars$50,000 – $199,999 avg. project cost for Application Testing services in LondonRead All ReviewsLondon-based Application Testing project highlight
Web Release Testing for FinTech Company
5.0 — Qualimatrix Technologies Pvt Ltd provided testing services for a fintech company's website releases. The team created a test strategy that combined automatic test series to improve the quality of Read moreWas this helpful?
Review Rating from London Clients
5.0/5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
Reviewers in London commend Qualimatrix for their proficiency in automated testing, performance testing, and quality assurance for innovative apps. The team’s responsiveness, cost-effectiveness, and strong project management have consistently contributed to successful, timely project outcomes.Read All Reviews -
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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.
Reviews mention Understands their clients' needs
Blue Ripples Technologies demonstrates a strong understanding of client needs, as evidenced by their collaborative approach in shaping project outcomes. A CEO noted their 'in-depth understanding of industry' and described them as a partner aligned with their vision, effectively managing a cross-functional team to address specific goals. Overall, clients express satisfaction with Blue Ripples' responsiveness and adaptability throughout various project phases.-
Custom Software Development for Engineering Company
5.0 Jul 16, 2024Blue Ripples technologies has helped us shape our product. They acted more as a partner to the company aligning to our vision and providing the right expertise to our needs. Managed a cross functional team of software developers, control system experts and system integration specialists in developing the product. Team has shown flexibility to the needs of different project phases.
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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.
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Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently commend Blue Ripples Technologies for their competitive pricing and strong value for money. Feedback highlights their ability to deliver high-quality solutions within budget, such as a client noting their 'good value for cost' and another emphasizing 'cost control' during project execution. Overall sentiment reflects satisfaction with the balance between cost and quality, suggesting that clients perceive a favorable return on their investment.Was this helpful?
See All Locations (2)London, England
Greenside House, 50 Station Rd, Wood Green
London, England N22 7TP1
+44
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$75,000+$50 - $99 / hr250 - 999London, England
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 Easy to work with
Clients consistently express that Testinium is easy to work with, highlighting the responsiveness and hands-on involvement of senior management. One client noted their quick response times and adherence to project timelines, while another praised the user-friendly nature of Testinium's testing automation suite, which required no additional training for their internal team. Overall, the sentiment reflects a high level of satisfaction regarding collaboration and communication throughout the project.-
Performance & Automation Testing for Beverage Company
5.0 Apr 8, 2021We highly appreciated that their senior management was always hands-on with our project, and they took good care of us by staying closely connected. Their response time was really quick, and we had no project management issues. Above all, they always kept their time commitment, and their project estimation was on point.
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1 of 3 Application Testing reviews are 5 stars$200,000 – $999,999 avg. project costRead 3 ReviewsApplication Testing PROJECT HIGHLIGHT
Performance & Automation Testing for Beverage Company
5.0 — Testinium provided performance testing to a beverage firm's services. They also conducted automation testing for the client's web and mobile devices which Read moreWas 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.
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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?
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$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
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$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
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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.
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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)London, England
6th Floor, 80 Cheapside
London, England EC2V 6EE50 - 75
44.844.807.9905
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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.
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$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.
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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)London, England
14 Cullum Street, EC3M 7J
London, England EC3M 7JJ2 - 5
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$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
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$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.
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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.
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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.
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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
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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.
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$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.
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$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.
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients generally perceive Testing Frameworks Limited as offering strong value for money, with one CEO noting that their pricing was a good fit for the budget. The company is praised for delivering quality outcomes on time, which enhances the overall value. Additionally, the attention to understanding project complexities further underscores the favorable sentiment regarding their cost-effectiveness and commitment to client satisfaction.Was this helpful?
1 of 1 London-based review is 5 starsUnknown avg. project cost for Application Testing services in LondonRead All ReviewsLondon-based Application 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?
Review Rating from London Clients
5.0/5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
London-based Testing Frameworks Limited specializes in testing complex educational platforms with AI, Blockchain, and spatial computing. Clients praise their timely, detailed reports and understanding of project intricacies, highlighting their reliability and collaborative approach in delivering innovative solutions.Read All Reviews -
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.
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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
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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.
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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.
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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)London, England
3 The Shrubberies George Lane, South Woodford
London, England E18 1BD1
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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.
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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
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UndisclosedUndisclosed1,000 - 9,999Crawley, England
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
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$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.
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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.
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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.
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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
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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
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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 6 London Performance Testing Companies
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$10,000+$25 - $49 / hr50 - 249London, England
Ability to deliver
32.2/40.017/20 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 -
$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 -
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 -
$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 -
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 -
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 - 999Warszawa, Poland
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
20% Application Testing60% Performance Testing80% Other -
$25,000+$25 - $49 / hr10 - 49Hyderabad, India
Ability to deliver
6.7/40.00/20 Reviews2.7/10 Clients & Experience4/10 Market PresenceService focus
20% Application Testing15% Performance Testing80% Other -
$10,000+$50 - $99 / hr2 - 9London, England
Ability to deliver
4/40.00/20 Reviews0/10 Clients & Experience4/10 Market PresenceService focus
100% Application Testing10% Performance Testing -
UndisclosedUndisclosed10 - 49London, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
70% Application Testing30% Performance Testing30% Other -
UndisclosedUndisclosed1,000 - 9,999London, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
10% Application Testing20% Performance Testing90% Other -
UndisclosedUndisclosed10 - 49Milan, Italy
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
100% Application Testing20% Performance Testing -
UndisclosedUndisclosed10 - 49London, England
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
40% Application Testing30% Performance Testing60% Other -
$50,000+$25 - $49 / hr10 - 49London, England
Ability to deliver
4.6/40.00/20 Reviews0/10 Clients & Experience4.6/10 Market PresenceService focus
10% Application Testing10% Performance Testing90% Other
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