Leave a Review For Providers 0 0
  • Post a Project
Home Software Testing Installation Testing London

Top Installation Testing Services in London

Ratings Updated: April 4, 2026
We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust
Get Matched

4 Leaders 5 Contenders

9 Companies

Country: England
City: London
Functional Software Testing: Installation Testing

List of the Top London Installation Validation Testing Companies

  • Vention Logotype

    4.9 98 reviews
    Premier Verified
    $50,000+
    $50 - $99 / hr
    1,000 - 9,999
    London, England

    Services provided

    10% Application Testing
    10% AI Development
    10% Blockchain +7
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% DevOps Managed Services
    10% Enterprise App Modernization
    10% IT Staff Augmentation
    10% Mobile App Development
    10% Web Development

    Focus Areas

    10% Installation Testing
    25% A/B Testing
    15% Regression Testing +5
    10% Acceptance Testing
    10% Integration Testing
    10% IoT Testing
    10% Sanity Testing
    10% Unit Testing

    Vention is a versatile software development company specializing in Application Quality Assurance and staff augmentation services. Client feedback highlights their impressive communication, high skill level, and significant contributions to operational efficiency and cost savings. Approximately 100% of reviewers commend their collaborative nature and responsiveness, while some mention relatively high QA rates.

    See all 98 projects

    Reviews mention Adaptable

    The sentiment regarding Vention's adaptability is overwhelmingly positive. Clients consistently highlighted their team's ability to quickly integrate into existing workflows and respond to urgent needs. One client noted, "Vention's team was easy to interact with, responsive, and adaptable to different working methods." Another remarked on the team's flexibility, stating they "adapted to any circumstance of more or less guidance, and always delivered on time." Overall, Vention is praised for its responsiveness and capacity to meet diverse project requirements.
    • AR/VR Development Staff Aug for Healthcare Technology Co
      4.5 May 16, 2025

      Vention's team was easy to interact with, responsive, and adaptable to different working methods.

      Read Full Review
    Read All Reviews

    Industry Experience

    Vention has demonstrated expertise across diverse industries, including Fintech, IT, Education, Marketing, and Healthcare. In Fintech, they excel in software development and team augmentation, receiving praise for responsiveness and timely deliveries. In IT, clients commend their problem-solving skills and technical proficiency, while in Education, their collaborative approach has improved project outcomes. Overall sentiment is positive, with a consistent emphasis on quality, flexibility, and effective communication across all sectors.

    Read All Reviews

    Select Industry to see insights

    Advertising & marketing Education Business services Financial services Food & Beverage Software eCommerce Healthcare Logistics & Supply Chain Hospitality & leisure Consulting Social Networking Energy & natural resources Wellness & Fitness Transportation IT Services Real estate Media Arts, entertainment & music Utilities Chemicals & Biotechnology Consumer Products Information technology Other Industry

    Average Project Cost Breakdown

    $50,000 to $199,999 (18) $200,000 to $999,999 (17) $10,000 to $49,000 (11) $1,000,000 to $9,999,999 (7) $10,000,000 + (1)

    What Clients Have Said

    Clients consistently report that Vention offers excellent value for money, with pricing fitting within their budgets while delivering high-quality results. For instance, one client highlighted that Vention's pricing was a significant factor in their decision to partner with the company, while another noted a 50% reduction in Salesforce license costs due to Vention's optimizations. Overall, feedback indicates strong satisfaction with Vention’s cost-effectiveness and the quality of service provided.
    Read All Reviews

    View projects from:

    United States (61) England (13) Canada (3) Germany (2) Lithuania (2) Israel (2) Latvia (1) Iceland (1) New Zealand (1) Singapore (1) Spain (1) Sweden (1) France (1) Scotland (1) Cyprus (1)

    This provider is fluent in 2 languages:

    • English
    • German

    This provider is available in 5 time zones:

    • Greenwich Mean Time (GMT)
    • Central Standard Time (CST)
    • Eastern Standard Time (EST)
    • Pacific Standard Time (PST)
    • Mountain Standard Time (MST)
    View Profile Visit Website
  • Valor Software Logotype

    5.0 20 reviews
    Verified
    $10,000+
    $50 - $99 / hr
    50 - 249
    London, England

    Services provided

    10% Application Testing
    10% Application Management & Support
    10% Custom Software Development +7
    10% Enterprise App Modernization
    10% IT Staff Augmentation
    10% IT Strategy Consulting
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    10% Web Development

    Focus Areas

    10% Installation Testing
    20% Unit Testing
    15% A/B Testing +5
    15% Acceptance Testing
    10% Integration Testing
    10% IoT Testing
    10% Regression Testing
    10% Sanity Testing

    Valor 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.

    See all 20 projects

    Reviews mention Well-organized projects

    Clients express strong satisfaction with Valor Software's project organization and management. One reviewer highlighted their efficient communication and timely delivery, stating, 'Valor consistently delivered on time' and praised their agile methodology, which included regular sprint planning and daily stand-ups. The ability to simplify complex systems while maintaining high quality was particularly noted, with the client remarking, 'They gave us a robust, scalable app that exceeded our expectations.' Overall, feedback indicates a well-organized approach that significantly benefited project outcomes.
    • Mobile App Development for Wellness Company
      5.0 Sep 20, 2024

      Valor demonstrated solid project management throughout our engagement. They were organized, communicated effectively, and maintained transparency in their workflow. While most deliverables were completed on time, they were proactive in addressing any potential delays.

      Read Full Review
    Read All Reviews

    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.

    Read All Reviews

    Select Industry to see insights

    Information technology Healthcare eCommerce Software Engineering Other industries Transportation Wellness & Fitness Advertising & marketing IT Services Financial services

    Average Project Cost Breakdown

    $50,000 to $199,999 (6) $10,000 to $49,000 (3) $200,000 to $999,999 (1) $1,000,000 to $9,999,999 (1)

    What 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.
    Read All Reviews

    London, England

    Hatton Garden,5th Floor, Suite 23
    London, England EC1N

    2 - 5

    See All Locations (9)
    View Profile Visit Website
  • Qualitest Group Logotype

    Not yet reviewed

    Verified
    Undisclosed
    Undisclosed
    1,000 - 9,999
    London, England

    Services provided

    100% Application Testing

    Focus Areas

    20% Installation Testing
    30% IoT Testing
    20% Integration Testing +2
    15% Regression Testing
    15% Unit Testing

    Launched in 1997, Qualitest Group is a large Santa Clara, California-based Application Testing company. Their team offers Application Testing.

    Read more

    London, England

    Level 2, Equitable House 47 King William Street
    London, England EC4R 9AF

    1001 - 2000

    See All Locations (6)
    View Profile Visit Website

    • Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.

    Get My Matches
  • TestFort QA Lab Logotype

    4.9 17 reviews
    $10,000+
    $25 - $49 / hr
    50 - 249
    London, England

    Services provided

    100% Application Testing

    Focus Areas

    10% Installation Testing
    20% Regression Testing
    20% Sanity Testing +3
    20% Unit Testing
    15% Acceptance Testing
    15% IoT Testing

    TestFort QA Lab is a distinguished company specializing in QA Testing and Software Quality Assurance services, particularly recognized for its App Testing and Software Validation capabilities. With overwhelmingly positive feedback, approximately 85% of clients commend their structured QA processes, attention to detail, and proactive project management. Clients highlight their adaptability and expertise in complex environments, making them a reliable partner for enhancing software quality.

    See all 17 projects

    Reviews mention High-quality work

    Clients consistently commend TestFort QA Lab for delivering high-quality work that significantly enhances software reliability and performance. One client highlighted their 'impressive attention to detail' in high-risk areas, while another noted a '50% reduction in billing-related production bugs' due to TestFort's thorough QA processes. Overall, feedback reflects a strong sentiment of satisfaction with the quality of deliverables, indicating TestFort's effectiveness in meeting and exceeding client expectations.
    • App Testing for Password Management App
      4.5 Jun 1, 2023

      The meticulous testing resulted in noticeable improvements to the usability and stability of our product. This led to a more reliable, user-friendly experience for our users, increasing overall customer satisfaction. TestFort QA Lab's commitment to our product stood out. They weren't just going through the motions — they genuinely wanted to deliver a secure, user-friendly password manager.

      Read Full Review
    • QA Testing Services for Software Developers
      5.0 Mar 1, 2021

      The key outcome of our project with TestFort is the quality and stability of the telehealth platform we developed. Software testers we hired extensively checked the platform’s architecture and functionality. They were diligent in their testing, provided clear bug reports, and made further recommendations on ways to improve the solution’s functionality and reliability.

      Read Full Review
    • Staff Augmentation for Full-Cycle Development Company
      5.0 Nov 3, 2020

      Our platform is highly improved, thanks to the work of TestFort’s QA engineers. They thoroughly tested each new feature, helping us maintain high-quality standards with each new release of the platform.

      Read Full Review
    • QA Team Augmentation for Development Company
      4.5 Oct 3, 2019

      The quality of our app—and our software releases—has improved significantly since we started working together. Their work has also led to a 75–80% bug reduction, which is phenomenal. I was impressed by their attention to detail, and their use of visual aids to support written communication.

      Read Full Review
    • QA Services for B2B SaaS Platform
      5.0 Mar 11, 2026

      Their attention to detail in high-risk flows like billing was impressive. TestFort team combined a structured QA approach with strong product thinking, helping us prioritize what matters most for customers ahead of each release. They consistently deliver high-quality work and make the testing process clear and predictable.

      Read Full Review
    Read All Reviews
    1 of 1 Installation Testing reviews is 5 stars
    1 new review for Installation Testing in past 6 months
    Unknown avg. project cost

    Installation Testing Experience

    TestFort QA Lab has received overwhelmingly positive feedback for their Installation Testing services, with 90% of clients noting improved software quality and reduced defects. Clients praised their thoroughness, effective project management, and timely communication, which enhanced test coverage and accelerated release cycles. The majority highlighted the company's expertise and detailed reporting as key strengths. However, 10% suggested that incorporating more proactive strategic input could further enhance their service offerings.

    Read Most Recent Review
    9 of 11 Application Testing reviews are 5 stars
    5 new reviews for Application Testing in past 6 months
    $10,000 – $49,000 avg. project cost

    Application Testing PROJECT HIGHLIGHT

    Application Testing for Video-Based Social Platform

    5.0 — TestFort QA Lab provided QA testing services for a video-based social platform. The team conducted crowdtesting sessions to validate the performance, usability, and functionality of the client's Read more
    Read 11 Reviews

    View projects from:

    United States (6) Ukraine (4) Canada (1) France (1) Israel (1) Switzerland (1)
    View Profile
  • Pixie Labs Logotype

    5.0 3 reviews
    $25,000+
    $150 - $199 / hr
    2 - 9
    London, England

    Services provided

    10% Application Testing
    30% Web Development
    20% Custom Software Development +2
    20% Mobile App Development
    20% UX/UI Design

    Focus Areas

    20% Installation Testing
    20% Integration Testing
    20% Regression Testing +2
    20% Sanity Testing
    20% Unit Testing

    Pixie Labs is a versatile digital product development company known for its technical expertise and agile methodology, offering services in API development, sales tool creation, and website building. With overwhelmingly positive feedback, clients highlight Pixie Labs' strong culture fit, on-time delivery, and ability to adapt to evolving project needs, resulting in successful market launches and significant business growth.

    See all 3 projects

    Reviews mention Timely

    Client feedback regarding Pixie Labs highlights a consistently positive sentiment towards their timeliness. The Department Head of Blink Cat Food noted that Pixie Labs delivered everything on time, showcasing high visibility of progress and responsiveness to needs. The absence of any issues during the website launch further underscores their reliability in meeting deadlines, contributing to the overall successful project outcomes.
    • Website Revamp for Pet Food Company
      5.0 Apr 27, 2023

      Everything on time, high visibility of progress and next steps, very responsive to our needs. They also delivered without any new website launch drama at all.

      Read Full Review
    Read All Reviews

    Industry Experience

    Pixie Labs has received positive feedback across various industries, notably Healthcare, Information Technology, and Consumer Products. In Healthcare, they excelled in MVP development and API design, significantly enhancing sales processes. The IT sector praised their strategic product development and effective communication, fostering a collaborative environment. In Consumer Products, they delivered a responsive website that improved conversion rates. Overall, Pixie Labs demonstrates strong technical expertise and adaptability, making them a valuable partner for startups and established companies alike in these sectors.

    Read All Reviews

    Select Industry to see insights

    Healthcare Information technology Consumer Products

    Average Project Cost Breakdown

    $50,000 to $199,999 (1)

    What Clients Have Said

    Clients generally perceive Pixie Labs as offering excellent value for money, with specific feedback highlighting their pricing as fitting within budget and providing good value relative to costs. For instance, one client noted that Pixie Labs delivered significant results, such as a 50% increase in sales, which they attributed to the company's effective solutions. Overall, the sentiment reflects satisfaction with the cost-effectiveness of their services and the quality of deliverables.
    Read All Reviews

    View projects from:

    United States (1) England (1)
    View Profile
  • DVT Logotype

    Not yet reviewed

    $10,000+
    Undisclosed
    250 - 999
    London, England

    Services provided

    20% Application Testing
    20% BI & Big Data Consulting & SI
    20% Custom Software Development +2
    20% IT Staff Augmentation
    20% Web Development

    Focus Areas

    20% Installation Testing
    20% Integration Testing
    20% Regression Testing +2
    20% Sanity Testing
    20% Unit Testing

    DVT, a business intelligence company, was established in 1999. Based in Johannesburg, South Africa and London, England, the team offers BI & big data consulting & SI and IT staff augmentation.

    Read more

    London, England

    Scott House, Suite 1, The Concourse Waterloo Station
    London, England SE1 8SW

    10 - 15

    +44 020 3422 3400

    See All Locations (7)
    View Profile
  • ClicTest Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    City of London, England

    Services provided

    100% Application Testing

    Focus Areas

    30% Installation Testing
    70% Regression Testing

    ClicTest is an Application Testing company. Their small team is headquartered in City of London, England and offers Application Testing. The firm was established in 2013.

    Read more
    View Profile
  • Testing Minds Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Basildon, England

    Services provided

    100% Application Testing

    Focus Areas

    10% Installation Testing
    25% Acceptance Testing
    25% Integration Testing +2
    20% Regression Testing
    20% Unit Testing

    Testing Minds is an Application Testing company launched in 2018. The company provides Application Testing.

    Read more
    View Profile
  • 360logica Software Testing Services Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    London, England

    Services provided

    80% Application Testing
    10% Custom Software Development
    10% Web Development

    Focus Areas

    20% Installation Testing
    20% Integration Testing
    20% Regression Testing +2
    20% Sanity Testing
    20% Unit Testing

    360logica Software Testing Services is a Noida, India-based Application Testing company. The team provides Application Testing and Custom Software Development.

    Read more

    London, England

    Suite 560 No 28 Old Brompton Rd., Kensington
    London, England SW7 3SS

    +44 800 098

    See All Locations (5)
    View Profile

Tell us what you need — we’ll match you with top agencies in minutes.

Get My Matches
tracking image

Why 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.

Ability to deliver
Focus
Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 Vention
2 TestFort QA Lab
3 Valor Software
4 Pixie Labs

List of the Top 4 London Installation Validation Testing Companies

  1. Vention Logotype

    Vention

    $50,000+
    $50 - $99 / hr
    1,000 - 9,999
    London, England

    Ability to deliver

    39.8/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    10% Application Testing
    10% Installation Testing
    90% Other
    View Profile Visit Website
  2. TestFort QA Lab Logotype

    TestFort QA Lab

    $10,000+
    $25 - $49 / hr
    50 - 249
    London, England

    Ability to deliver

    33.4/40.0
    18.2/20 Reviews
    8.7/10 Clients & Experience
    6.5/10 Market Presence

    Service focus

    100% Application Testing
    10% Installation Testing
    View Profile Visit Website
  3. Valor Software Logotype

    Valor Software

    $10,000+
    $50 - $99 / hr
    50 - 249
    London, England

    Ability to deliver

    38.4/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    10% Application Testing
    10% Installation Testing
    90% Other
    View Profile Visit Website
  4. Pixie Labs Logotype

    Pixie Labs

    $25,000+
    $150 - $199 / hr
    2 - 9
    London, England

    Ability to deliver

    26.2/40.0
    16.8/20 Reviews
    4/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

    10% Application Testing
    20% Installation Testing
    90% Other
    View Profile Visit Website
  5. Qualitest Group Logotype

    Qualitest Group

    Undisclosed
    Undisclosed
    1,000 - 9,999
    London, England

    Ability to deliver

    9.7/40.0
    0/20 Reviews
    1.2/10 Clients & Experience
    8.5/10 Market Presence

    Service focus

    100% Application Testing
    20% Installation Testing
    View Profile Visit Website
  6. DVT Logotype

    DVT

    $10,000+
    Undisclosed
    250 - 999
    London, England

    Ability to deliver

    5.2/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    20% Application Testing
    20% Installation Testing
    80% Other
    View Profile Visit Website
  7. ClicTest Logotype

    ClicTest

    Undisclosed
    Undisclosed
    2 - 9
    City of London, England

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    100% Application Testing
    30% Installation Testing
    View Profile Visit Website
  8. Testing Minds Logotype

    Testing Minds

    Undisclosed
    Undisclosed
    50 - 249
    Basildon, England

    Ability to deliver

    4/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    100% Application Testing
    10% Installation Testing
    View Profile Visit Website
  9. 360logica Software Testing Services Logotype

    360logica Software Testing Services

    Undisclosed
    Undisclosed
    10 - 49
    London, England

    Ability to deliver

    5.8/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.8/10 Market Presence

    Service focus

    80% Application Testing
    20% Installation Testing
    20% Other
    View Profile Visit Website

Similar Categories

Related Services

Web Developers in London Software Developers in London Mobile App Development in London eCommerce in London Artificial Intelligence in London Blockchain in London AR/VR in London IoT in London Ruby on Rails in London

Specialties

Reliability Testing Manual Testing Stress Testing Sanity Testing Unit Testing Installation Testing Load Testing A/B Testing Compatibility Testing

Nearby Locations

Installation Testing in Southampton
View More

Get personalized agency matches based on your project goals.