superbcompaniesGet Listed

The Best Software Testing Companies in London

In the bustling city of London, the ever-increasing demand for software testing services has resulted in a flood of companies offering their expertise in quality assurance (QA). Amidst this abundance, discerning business owners recognize the importance of partnering with the best to ensure their success.

To assist in navigating this competitive landscape and avoid distractions, Superbcompanies has diligently conducted a comprehensive survey. The goal was to identify and highlight software testing firms in London that not only meet the needs of clients but also adhere to the highest global standards.

We are pleased to present our meticulously curated list of the top software testing companies in London. This compilation serves as a reliable resource for business owners seeking a trustworthy QA partner. By exploring our list of the top software testing companies in London, you can gain valuable insights and firsthand knowledge about the exceptional services offered by these esteemed firms. Take a moment to peruse our findings and discover the perfect software testing company that aligns with your business goals.

Read more
The Best Software Testing Companies in London badge

List of the top Software Testing Companies in London

Updated: 25 January 2024
1st
DeviQA logo
$25 - $49 / hr
200-499
2010
United States, Ukraine, Poland, Slovakia, United Kingdom, Germany

DeviQA

DeviQA is a leading software testing company that entered the IT market in 2010. The main activity of the company is quality assurance and software testing - the company provides a broad spectrum of up to 13 software testing services such as Full-cycle Testing, Web App Testing, Automated Testing, Mobile App Testing, API Testing, Dedicated QA Team, QA Outsourcing and others. The team can perform both full-cycle software testing to run a quality product or concentrate only on one kind of testing services by clients' requirement. 

DeviQA works with customers all over the world, and, since 2010, the company has performed over 500 successfully tested applications.

The company selects a unique team for each project, which:

 - gives people the opportunity to enjoy the product by making sure everything works well;

- controls the development process;

- prevents bugs in the software before users find them;

- ensures the quality of the product before the release.

Service Focus
  • Testing
2nd
TatvaSoft logo
< $25 / hr
200-499
2001
India, United States, Australia, United Kingdom, Canada

TatvaSoft

TatwaSoft is a custom software development company operating on various technology platforms such as Microsoft, Java, PHP, Open Source, BI, and Mobile. They specialize in providing high quality, timely, and cost-effective IT outsourcing services in a variety of industries around the world.

TatvaSoft serves clients worldwide with offices in the USA, Canada, UK, Australia, and the development center in India, employing more than 810 IT professionals. The company has more than 1800 successfully implemented projects on its account.

Their rich and varied experience of over 18 years in software development guarantees quality, timely, and cost-effective software solutions that give any business an advantage over its competitors. To date, the company's specialists have completed projects for 700+ small and medium companies and 500 companies on the Fortune list.

Service Focus
  • Testing
  • Mobile App Development
  • Software Development
  • Web Development
  • Consulting
3rd
nFocus logo
Undisclosed
50-199
2000
United Kingdom

nFocus

nFocus is a dynamic, UK-based software testing and QA company that has been serving companies around the world for 21 years. 

Since 2000, nFocus is offering functional testing and automation in the tech industry. The company employs more than 200 QA specialists, and they have successfully completed more than 100 projects.

nFocus offers a full suite of software testing and QA services to help software companies get their products to market much smoother and help businesses to achieve their goals. Its fresh expert perspective and well-established methodology help you minimize umber of bugs and get a viable product faster.

See the full list of services provided by nFocus:

  • Test Automation Readiness Assessment
  • Test Automation Health Check
  • Test Automation Consultancy
  • User Acceptance Testing
  • Load and Performance Testing
  • Penetration Testing
  • Mobile App Testing
Service Focus
  • Testing
4th
AscentiQ Solutions logo
Undisclosed
1-9
2012
United Kingdom

AscentiQ Solutions

Founded in 2012, AscentiQ Solutions is one of the leading companies that provide excellent software testing and quality assurance services, mobile app development services, and web application development to clients from more than 30 countries. Knowledge and experience accumulated over the years enable AscentiQ Solutions to handle tasks of different complexity and objectives: development, adaptation, and integration of complex corporate solutions, mobile and web applications development, etc.

At AscentiQ Solutions, QA and development experts conduct in-depth and systematic research to identify the latest trends, issues and challenges faced by client organizations in order to enable them to achieve their business goals. 

The AscentiQ Solutions team offers services and best methodologies, always takes a customer-centric approach, and works for customer satisfaction.

Service Focus
  • Testing
5th
ClicQA logo
$25 - $49 / hr
200-499
2016
India

ClicQA

ClicQA is an independent software testing company which exists since 2016. But for these 3 years, the company has established itself over the past three years as a responsible company that offers customers worldwide provide a wide range of software testing services to clients across the globe.

The company's goal is to help customers, improve their performance, reduce time to market, and provide high-quality products.

Service Focus
  • Testing
6th
Audacia logo
Undisclosed
10-49
2010
United Kingdom

Audacia

Audacia offers comprehensive software development, software testing, and quality assurance services to make sure all your requirements are met and the product works as originally planned. Audacia has wide experience in software development, software testing, and design of mobile apps. QA specialists offer a wide range of software quality testing services, so you can be sure that all problems are detected early in the process. With Audacia QA testing services, you can be sure that the user will be satisfied with your software solution.

Based in London, Audacia develops application solutions in the design, development, and delivery of innovative and robust, business-critical software systems. 

Audacia has over 40 specialists, involved in software testing and software development outsourcing projects. The company specialists are highly qualified professionals, who have received serious training in their activities. 

Service Focus
  • Testing
7th
IT Enterprise logo
$50 - $99 / hr
10-49
2000
United Kingdom

IT Enterprise

At IT Enterprise, they believe that your idea for the next successful start-up or innovation can always be built. Their passionate team is very strong at bridging the gap between your business needs and all the technicalities in creating the ideal software for your business.

As a software development business, they don’t want to burden you with technologies or technical choices, that’s their strength – they will deliver a bespoke and quality solution for your need.

They truly believe in the Agile methodology and they love sharing their development work very early on with you. This means you see very quickly what they are doing and they can make changes faster, helping you avoid costly changes at a later stage. A Win-Win!

Service Focus
  • Software Development
  • Testing
8th
a1qa logo
Undisclosed
500+
2003
United States

a1qa

a1qa is a next-gen US-based provider of QA and software testing services that has been operating for more than 20 years.

a1qa supports organizations of all sizes in swiftly deploying essential functions and attaining business objectives. By offering dedicated teams, QA consulting, and a variety of testing services for diverse systems and platforms, a1qa helps companies accelerate time-to-market, reduce operational costs, and boost customer satisfaction, ultimately resulting in improved business outcomes.

1,100+ full-time QA engineers have performed 1,500+ projects across diverse industries. The experts adhere to ISO 9001/27001 standards, delve deep into clients’ needs, ensure project transparency at any SDLC stage, and proactively manage risks.

It’s noteworthy that 90% of organizations choose to cooperate with a1qa on subsequent projects

Service Focus
  • Testing
9th
TestingXperts logo
$50 - $99 / hr
200-499
1996
United States

TestingXperts

TestingXperts is a leading IT services company operating worldwide. The company uses innovative technologies and offers the most effective software testing services on time and within budget. The range of testing services includes functional and non-functional testing, professional expertise in cloud and mobile technologies.

The company has a global presence in countries such as the United States, Canada, the United Kingdom, the Netherlands, India and Australia, and successfully collaborates with industry giants such as Microsoft, SmartBearge, QuerySurge, and Perfecto Mobile.

Service Focus
  • Testing
10th
Edge Testing logo
Undisclosed
200-499
2007
United Kingdom

Edge Testing

Edge Testing has been on the IT market since 2007. The main activity of the company is software quality assurance (Software testing, quality assurance, load testing, performance testing, test automation, user acceptance testing, DevOps Service, and many others). Edge Testing operates globally with test lab facilities in the UK, USA, Belgium, Poland, Sweden, and Hong Kong. One of the main activities of the company is outsourcing testing and independent testing, which includes: developing testing strategy, test documentation, test process, and full accountability.

Edge Testing has quickly become the #1 software testing company in the UK. The talented team, which includes the UK's leading testing specialists, helps provide exceptional services to clients in the financial services, telecommunications and media, retail, and public niches. 

Service Focus
  • Testing
11th
TestDel logo
Undisclosed
10-49
2005
United Kingdom

TestDel

TestDel is a leading provider of quality assurance services. Offering various types of testing services, TestDel is able to cover absolutely all testing needs. 

TestDel provides custom software testing services for medium-sized businesses and large corporations and helps customers create the best software to achieve their corporate goals. 

Since 2005, TestDel has been a trusted software testing partner for world-class brands. During this time of providing professional testing, they have helped their numerous clients improve the quality of their applications, save time on project development, and accelerate their time to market. TestDelivery teams work with organizations across all industries to effectively address all testing challenges. You can trust the TestDel team of experienced and highly skilled professionals from renowned technology and management institutions who are experts in various industries, including IT, retail, aviation, utilities and banking.

TestDel is an expert in manual and automated testing for web, desktop, mobile, cloud and cross-platform software solutions.  

Service Focus
  • Testing
12th
rattlesnake one Ltd logo
< $25 / hr
1-9
2020
london

rattlesnake one Ltd

RattleSnake One is a full-service digital design agency transforming ambitious companies into powerful brands at a rapid speed. The agency is Led by a super-motivated team that thoroughly enjoys their work, it is a full-service, high-end design agency providing holistic and trans formative digital design services. Curating delightful user experiences, company works with global clients and deliver customized products.


Company deliver innovative user experience through maintaining client focused and business orientated, team energizes corporations with intelligent solutions that work as a 360 degree turnaround for your company. With a team of unique mix of skills, company works directly with clients and provide them services that are business-transformative.

Service Focus
  • Advertising
  • Consulting
  • Design
  • Marketing
  • Pr
  • Seo
  • Services
  • Software Development
  • Web Development
  • Testing

What is software testing and why it's important?

Do you want to hit the market with an amazing app, blow your users’ socks off, and receive a high return on investment? In such a way, a partnership with a professional software testing company is a must for you.

To withstand severe competition, attract users in droves, and, what is even more important, keep them engaged, you should offer a product of first-class quality.

To help you achieve your business goals, the top software testing companies in London execute a great variety of tests in order to check all ins and outs of an application and not to leave any detail out.

In-house QA team or outsourcing? Which one to choose?

It is an indisputable truth that software testing is an essential part of the development process. However, how to get the most out of it? Is it better to set up your own QA department or outsource QA services? Let’s try to figure it out together.

In-house testing

In-house testing is a viable option for those who prefer to keep an eye on the ball in order not to miss a thing. Having your own QA department, you can personally control and manage the whole QA process. Besides, having a QA team in place, you can set up a meeting any time and handle burning issues on the spot without any delays. One more advantage of in-house testing is an opportunity to keep all the processes under the same roof and therefore provide better security conditions.

Data security is extremely important these days, and it is often a key factor to opt for an in-house QA department. One more important aspect is domain expertise. By working exclusively on your projects, your in-house QA engineers are getting aware of all details of your business and therefore perfectly know the main challenges, tendencies, and goals.

As for disadvantages, the main one is heavy expenses related to recruitment, labor costs, license fees, worksite arrangement, and many others. Even if your company can afford to set up its own QA department, it makes sense only if you are going to make software testing one of your main business activities.

Software testing outsourcing

Outsourcing of QA services is getting more and more popular. Thousands of companies from different corners of the world have already assured of its benefits. First of all, it is a fire sure way to save a lot of money, especially if you collaborate with an offshore outsourcing QA company which rates are much lower. Besides, there is no need to waste a lot of time, effort, and money on staff recruitment, equipment procurement, renting, personnel training, etc.

 An outsourced team can proceed to your product testing almost immediately because outsourcing QA companies have vast human resources and all equipment, software, and tools at their disposal. Your outsourced QA team can be easily and quickly ramped up if it is needed. One more important merit of outsourcing software testing firms is broad experience. 

They regularly work on applications of different sizes, various complexity degrees, and from the most diverse domains. As a result, you can get access to the talent pool with indeed rich experience. Trying to keep their clients well-informed, professional outsourcing software testing companies regularly submit reports on current product quality and work progress. 

Frequent online meetings are also a norm if you work with an outsourcing company. So, if you are not a control freak and you are not bound by strict security measures, outsourcing is a great option that can offer you high-quality and fairly priced software testing services.

There are plenty of outsourcing software testing companies in London. In the Superbcompanies list you can find the best ones. So do not waste your time for further search - look through the hand-picked list of top software testing companies in London and choose the one to entrust your software to.

Find answers to all your
questions

Software testing companies in London are businesses that specialize in testing software applications and systems to ensure their quality, functionality, and performance. These companies use various testing techniques and tools to identify bugs, errors, and vulnerabilities in software products.

Software testing companies in London offer a range of services that include functional testing, usability testing, performance testing, security testing, automation testing, and mobile app testing. They may also offer consulting services, test strategy development, test management, and training services.

Choosing the right software testing company in London depends on your specific needs and requirements. Consider factors such as the company's expertise, experience, industry certifications, reputation, pricing, and customer service. You may also want to ask for references and check online reviews and ratings.

The cost of software testing services in London depends on various factors such as the type of testing, the complexity of the software product, the size of the project, and the testing company's rates. Some companies charge hourly rates, while others charge per project or offer customized pricing models.

Outsourcing software testing to London-based companies can offer several benefits such as access to specialized expertise and resources, cost savings, faster turnaround times, and reduced risks. London-based testing companies may also have experience working with different industries and software products, providing valuable insights and best practices.

Yes, most software testing companies in London can work remotely using various collaboration tools and communication channels. Remote software testing can offer several benefits such as flexibility, cost savings, and reduced travel expenses. However, it is important to ensure that the testing company has the necessary infrastructure and security measures in place to protect your data and intellectual property.