Top 20 Software Testing Companies

The history of software development manifests that it is quite tricky to create a successful product, whether it is an enterprise project or a startup, without quality software testing and QA.

Now you don’t require thousands of dollars to build and maintain a testing team and memorize the testing process. 

Instead, you can use cost-effective solutions provided by companies that offer quality assurance services (QA) and automation testing services worldwide. 

It is evident that software testing and QA are crucial stages of the software development life cycle, and they cannot be neglected. 

Outsourcing testing work to specialized service providers is always the best solution for cost-cutting and building a high-quality, competitive product.

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What is Software Testing?

As the name suggests, software testing is a testing solution performed by software engineers that verifies whether the actual results and expected results of the software resemble or not.

Any software development company requires testing and QA services to deliver error-free software and enhance their customer experience.

It also helps enhance the user experience by identifying bugs, errors, mistakes, and other gaps and conflicts in the system by verifying it against various documents such as the Software Requirement Specification (SRS), Business Requirement, etc.

There are multitudes of software testing agencies out there that will test your software and warrant it to be bug-free.

Types of Software Testing

There are various types of testing and quality assurance (QA) techniques that can help your company enhance the customer experience and promote custom software development.

Broadly, software testing is of two types:

  • Functional
  • Non-functional

1. Functional Testing

Various operations and specific requirements are initially decided in the requirement analysis phase in the software development process.

These requirements are authenticated against the built software to verify error conditions and the system’s fundamental operations, usability, and accessibility in this testing process.

This testing has been further classified into four categories:

1. Unit Testing

The software’s components are individually tested in unit testing to verify whether the system performs as expected or undergoes deviation.

It is done in the early stages of software development to identify unnecessary dependencies in the code, thereby reducing the overall cost and time required to fix significant defects.

It allows testers to isolate different software components and perform rigorous testing, either manual or automated.

2. Integration Testing

Integration testing is performed mainly to test the logical flow or data flow between its various segments.

The software testing service providers use integration to identify and resolve the errors and any impromptu changes in the communication between different software modules that might be missed by unit testing.

There are two approaches for integration testing: Incremental Approach and Big Bang Approach.

3. System Testing

Once integration testing is done, the next step is to analyze the entire system to ensure that the system’s end-to-end functions are following the quality guidelines set by the stakeholders.

The system testing process can be automated to study the difference between actual and expected outcomes against every input.

Independent testers generally perform who can ensure that the results and the reports generated in the testing process are unbiased and accurate.

4. Acceptance Testing

Also known as User Acceptance Testing (UAT), acceptance testing verifies whether the developed system is ready to deploy in the market. This is achieved by getting the system tested by stakeholders and end-users. It tests the user experience with the system by manual testing done by the users.

Following steps are performed in UAT:

  1. Client Requirement Analysis
  2. Creation of Test Scenarios
  3. Creation of Test Plans
  4. Executing Test Cases
  5. Analyzing and recording results.
  6. Confirming objectives

2. Non-functional Testing

The non-operational aspects of the software are tested in non-functional testing. These include reliability, performance, load, usability, etc. intending to determine:

  • Maximum efficiency, usability, maintainability, etc., of the application.
  • Rate of optimization of installation
  • Minimum cost and risk in production
  • Various metrics for internal R&D.

The various types of this testing are:

1. Performance: To ensure that the development is working smoothly, we perform performance testing.

2. Volume: The amount or volume of data the system can hold without affecting its response time.

3. Installation: Any defects that might occur during a product’s installation are tested and resolved during installation testing.

4. Reliability: The extent to which the developed system can continuously perform specific tasks with lagging is called reliability testing.

5. Stress: the limit to which the software’s workload can be increased without any failures is called stress testing.

6. Recovery: The system’s ability to get back after a crash is tested during recovery testing.

7. Usability: The user-friendliness of the system and the system’s effortlessness to be understood by the user is called usability testing.

8. Localization: The cultural settings of the deployment location and the system’s compatibility to perform in that environment are tested in localization testing.

9. Security: In security testing, the safeguarding parameters are defined to test the software’s safety against internal and external attacks.

Various tools such as beta testing software, A/B testing software, etc., are used for this testing.

Benefits of Testing

Software Testing is essential for your software, and your company’s reputation will be affected if you deliver software with lots of bugs.

Various independent software testing companies provide security testing services, Software Quality Assurance Services, Automated testing services, Compliance testing services, etc.

Following are the most significant benefits of software testing:

1. Builds Reputation

If you deliver error-free software to your clients, the clients will be more likely to choose your organization, increasing your brand reputation and recognition.

This will help build long-term relationships with clientele.

2. Easy to integrate

Software testing techniques allow a system to integrate better with the existing system by continuous testing in the deployment and production environment.

Automated testing is used for this purpose as it provides detailed analysis regarding the system’s performance.

3. Budget-friendly

You might think that investing in software testing companies is costly. However, in the long run, it can help you in saving a substantial amount that otherwise would have been wasted if you deployed faulty software.

4. Avoid unnecessary catastrophe

With software testing, catastrophic defects such as security defects in monetary transactions, emergency alerts, etc., can be avoided.

In software testing, reasons behind communication defects, system blackouts, data loss, etc., can be identified before-hand and resolved in the initial business phase.

5. Enhance customer satisfaction

A thoroughly tested, problem-free, and smooth operating software attracts more clients than the one overrun with glitches. This will enhance customer satisfaction for the user in the company.

Software Testing Methodologies

Companies providing software testing services software employ various software testing methods in delivering a product that satisfies the client’s expectations.

These testing methodologies, such as waterfall model, agile methodology, iterative development, etc., differ based on objectives, deliverables, and strategies.

1. Agile Methodology

Sometimes, when we get a customer’s project requiring frequent moderations, it is impossible to complete a task. This is where Agile comes in.

In Agile methodology, the code is being analyzed after every incremental and rapid cycle so that each bug can be resolved before the product’s rerelease.

2. Iterative Development

Iterative development is a methodology that is usually considered while developing or testing a large project that cannot be created or tested in one go.

In this method, the project is subdivided into different smaller parts that then undergo waterfall methodology.

After each iteration, the system is tested, and the result is fed into the next iteration; however, this method increases communication overheads.

3. Waterfall Model

This easy-to-design and simple-to-handle software testing model can progress sequentially from one phase to another, similar to the software development phase.

This model requires the testers to define the testing mechanism beforehand for each phase, challenging to accommodate. Understand the difference between Waterfall vs Agile to pick the right methodology.

What is a Software Testing Company?

A software testing company is an independent testing and QA service provider that also offers the following:

  • Automation testing for Web and mobile applications
  • Manual testing for Web and mobile applications
  • Load testing, performance testing, security testing, etc.

You don’t need to outsource your software to a testing agency, but it is wise to do so, especially if you have a lot on your plate and not enough man- or economic power.

How to find the excellent Software Testing Services Company

Testing is a vital part of software development; thus, an ideal software testing services company must be chosen as a partner based on your organization’s own merits and requirements.

There are numerous qualitative and quantitative determinants for testing companies depending on what services they offer, is their method suitable to yours, are their prior clients satisfied with them, etc.

These are some tips to help you find the best software testing service provider for your firm:

  • Involve the outsourcing company initially into your development process so they can start their job simultaneously.
  • Understand that software testing is essential.
  • Before choosing the company, interview the candidates who will be working with you.
  • Choose the most flexible company.
  • Understand the various types of testing that the company provides and select the one that suits you.
  • Give preference to the teams with strong technical skills.
  • Understand what method or approach the company will take for testing and understand its compatibility with your development process.
  • Ensure that the engineers can explain and clarify the requirements.
  • Be sure to ask if the company is using the most effective method to test the software.

Top 20 Software Testing Companies

Here we present a list of the top software testing companies considering the experience and feedback from the companies that worked or are still working.

1. Abstracta Inc.

Abstracta is one of the Software Testing Companies

Abstracta Inc. is a software testing agency that was founded in 2008. It is located in San Francisco, California, with offices in London, Santiago, Montevideo, and Salto. They have a team of 115 who specializes in software application testing services that optimize test coverage, enhance product quality, and reduce time to market. 

Abstracta’s services have the added value of being able to leverage all of the company’s collective expertise from years of partnering with clients ranging from startups to enterprise-level companies in a wide array of industries including healthcare, technology, fin-tech, and e-commerce. 

Former Clients

  • BBVA
  • Benefit Cosmetics
  • Shutterfly
  • Santander

Core Services

  • End-To-Testing
  • Test Automation
  • Performance Testing
  • Mobile Testing
  • Accessibility Testing
  • Tool Development

2. QA Mentor

QA Mentor is one of the Software Testing Companies

QA Mentor is another software testing service that is located in New York. It has more than 175 employees, and it was founded in 2010. Application testing services are their specialization.

QA Mentor provided testing to identify bugs in a planning platform’s software and the online-generated keys before launch. With the help of a detailed matrix, the team tested the platform and provided daily updates. The clients enjoy working with them due to their excellent testing efforts.

Former Clients

  • Cie
  • HSBC
  • Citi
  • Morgan Stanley
  • GameCloud

Core Services

  • Core QA Services 
  • Manual Test Design & Execution
  • QA Performance & Capacity Planning
  • QA Performance Engineering & Optimization
  • QA Recruitment & Staffing
  • QA Lab Compatibility

3. QASource

QA Source is one of the Software Testing Companies

QASource is a software testing service that is located in Pleasanton, Calif. It has offices in Mexico and India. It was founded in 2002. It has a team of 257 people that specializes in application testing. The company provides mobile app testing and other IT services for successful mobile app development. They mainly work with clients in the healthcare and financial industries.

Former Clients

  • Facebook
  • Oracle
  • IBM
  • Dartmouth University

Core Services

  • Automation Testing Services
  • Manual Testing Services
  • API Testing Services
  • Mobile QA
  • Security Testing Services
  • Performance Testing Services
  • QA Analysis
  • Salesforce Testing Services

4. A1QA

A1QA is one of the Software Testing Companies

A1QA is a QA and software testing service that was founded in 2002. It is situated in Denver, where they have 200+ employees with a specialization in application testing and cybersecurity. 

The company first serves testing efforts for mid-market clients in the IT and telecommunications industries. A1QA helped an economic research institute in the development of a custom economic case management app.

Former Clients

  • Pearson
  • SAP
  • Adidas
  • Acronis

Core Services

  • Full-cycle Testing services
  • Complete Test coverage
  • Quality engineering
  • System and Platforms

5. Better QA

Better QA is one of the Software Testing Companies

BetterQA is a company that provides software testing services and is founded in 2018. It is located in Cluj-Napoca, Romania. They have a team of 50 employees that offers application testing services to most IT industry businesses. They provide mobile app testing and quality assurance (QA) for bug-free mobile app development.

BetterQA leads QA and testing efforts, working on a software development company’s system. Their work involved analyzing and demoing existing features, and they established a testing system.

Former Clients

  • AdviNow
  • Octagos Health
  • CardiaSync
  • Emphasoft

Core Services

  • Business Value of Testing
  • Risk-Based Testing
  • Test analysis
  • Test execution
  • Managing Non-Functional Testing
  • Common Test Types Applicable for Mobile Applications

6. QualityLogic

QualityLogic is one of the Software Testing Companies

QualityLogic is a software testing company located in Boise, Idaho, with offices in California and Oklahoma. It was founded in 1986. They have a team of 68 people who specializes in application testing. They provide testing services primarily with enterprise and mid-market clients in the arts, entertainment, and music industries.

QualityLogic provided software testing services for a communication application. They conducted manual, ad hoc, and exploratory testing for mobile and web apps.

Former Clients

  • HP
  • Cisco
  • Adobe
  • AT&T

Core Services

  • Mobile Applications
  • Websites and Web Apps
  • OTT & Streaming Media
  • Smart Energy Standards
  • Big Data Analytics & Telemetry
  • API Testing Services
  • Virtual and Augmented Reality Testing
  • eCommerce
  • Internet of Things (IoT)
  • Print Systems
  • Fax & Fax over IP Testing

7. DeviQA

DeviQA is one of the Software Testing Companies

DeviQA is one of the software testing services that is located in Kharkov, Ukraine. It was founded in 2010. They have a team of 100 engineers, and application testing is their specialization. They work with small business and enterprise clients across various industries. This software testing and quality assurance company provide full-cycle and QA testing. DeviQA enhanced the software testing services environment for a big data solutions firm. They managed to improve the QA testing environment of a complex social media analytic solution.

Former Clients

  • Mimecast
  • Bizness Apps
  • Techsee
  • Cipher health
  • Arklign

Core Services

  • Automated Testing
  • Agile Testing
  • DevOps
  • API Testing
  • Mobile Applications Testing
  • Performance Testing services
  • Mobile Automation Testing
  • Full Cycle Testing
  • Web Testing
  • Functional testing
  • Software testing consultancy

8. Fleek IT Solutions

Fleek IT Solutions is one of the Software Testing Companies

FLEEK IT SOLUTION is a software testing service which is located in Noida, India. It was founded in 2016. They have fewer than 20 employees and provide custom application testing services such as API testing and mobile app testing.

Fleek IT Solutions performed services for a biotechnology instruments client. They created an internal software team to implement regression, feature-level, and simulator-based testing.

Former Clients

  • Ignite.Online
  • BerkeleyLights
  • Genesys

Core Services

  • Functional Testing
  • Regression Testing
  • Integrated System Testing
  • Component Testing
  • Exploratory Testing
  • Database Testing

9. TestFort QA Lab

TestFort is one of the Software Testing Companies

TestFort QA Lab is a software testing service and a QA consulting company situated in Kharkiv, Ukraine. It has offices in Beverly Hills and Lviv, Ukraine. It was Founded in 2001. They have over 50 experts that provide application testing solutions to firms and small and large companies. They have worked with companies from IT, business services, and financial services, among others.

Former Clients

  • Freckle IoT
  • Perx
  • Skyhook

Core Services

  • Manual Testing
  • Automated Testing
  • QA outsourcing
  • QA consulting 

10. TestMatick

TestMatick is one of the Software Testing Companies

Testmatick is a software testing company located in New York City and has offices in Ukraine and India. It was founded in 2009. This software testing company has a team of 36 people who specializes in application testing. Testmatick provided testing services for a telecom operator. They conducted software quality testing on new interfaces for an e-faxing solution.

Former Clients

  • Grape
  • Doppler Labs
  • Hubrick

Core Services

  • Game Testing
  • Load Testing
  • eCommerce Testing
  • SEO Testing
  • Functional Testing
  • Mobile Testing
  • Automated Testing
  • Usability Testing

11. QATestLab

QATestLab is one of the Software Testing Companies

QATestLab is a software testing firm with its headquarters in Kyiv, Ukraine, and an additional office in New Jersey. It was founded in 2005; the team of 67 specializes in application testing. They work with small business and mid-market clients in the IT industry. QATestLab provides usability testing for a mobile accessories provider.

Former Clients

  • StoreFront Consulting
  • GeoSynergy
  • Nadwiser

Core Services

  • Manual Testing
  • Test Automation
  • Managed Testing
  • Test Documentation
  • Consulting
  • Quality Assurance (QA)

12. XBOSoft

XBOSoft is one of the Software Testing Companies

XBOSoft is a leading Software QA & Testing Services Company helping clients achieve improved software quality, better sales, more satisfied customers, and a happier QA & Testing Team. Since 2007, they have been serving clients, from Fortune 500 to small and mid-size companies, across the North American, European, Asian markets.

Former Clients

  • Oracle
  • Hyperion
  • Computer Associates
  • Matrix Care
  • Host Analytics
  • Autodesk
  • Mobile Medsoft
  • Mitel
  • SurfStitch

Core Services

  • QA Consulting
  • Agile testing
  • Functional testing
  • Test automation
  • Performance testing
  • Security testing
  • Mobile app testing
  • Website testing
  • API testing

13. Ubertesters

UberTesters is one of the Software Testing Companies

Ubertesters is one of the software testing services located in Ridgewood, NJ, and has a Ukraine office. It was founded in 2012; the team of 106 specializes in application testing, application management and support, and cloud consulting and SI. They work with small business clients, mainly in the business services industry, to provide their testing services. Ubertesters performed location and device-specific testing for a travel app.

Former Clients

  • Verizon
  • T-Mobile
  • Intuit
  • Newell Rubbermaid

Core Services

14. Testrig Technologies

TestRig is one of the Software Testing Companies

Testrig Technologies is a software testing company with offices in Dallas, London, and India. It was founded in 2015. This testing services company has a team of 15 employees providing both Software Quality Assurance and testing services for web apps, mobile apps, usability, and security infrastructures. Testrig Technologies tests a variety of Android and web apps for a media company.

Former Clients

  • Upstock
  • Avorra
  • CompanyIQ
  • SEOSitecheckup

Core Services

  • Web Application Testing
  • Mobile Application Testing
  • Security Testing
  • Automation Testing
  • Usability Testing
  • Performance Testing
  • Cloud Testing
  • Compatibility Testing
  • Android App Testing
  • iOS Application Testing
  • Web Automation Testing
  • Mobile Automation Testing
  • Functional Testing
  • Regression Testing

15. KiwiQA Services

KiwiQA Services is one of the Software Testing Companies

KiwiQA Services is a software testing service that is located in Sydney. It was established in 2009. The company has 50 employees, and a second it has its second office in Ahmedabad, India. It offers testing services to clients of various sizes in many different industries. KiwiQA Services conducted a security audit of a web platform.

Former Clients

  • Genix Venture
  • GameForge
  • Falkonry

Core Services

  • Mobile Testing
  • Manual Testing
  • Security Testing
  • Code Verification
  • Automation Testing
  • Performance Testing
  • Test Center & Consulting 


VTEST is one of the Software Testing Companies

VTEST is a software testing company based in Pune, India. It was founded in 2015. They have a team of 45 people specializing in application testing. They work with clients from the IT industry to provide testing services. VTEST worked on application testing for a human resource service app.

Former Clients

  • AirStream
  • beFIT
  • Hidester
  • Pharmarack

Core Services

  • Agile Testing
  • DevOps Testing
  • Service Virtualization
  • Mobile Testing
  • Digital Assurance & Testing
  • Big Data & Analytics Testing
  • Selenium Testing
  • Functional Testing
  • Test Automation
  • Compatibility & Performance Testing
  • Security Testing
  • Regression Testing

17. OnPath Testing

OnPath Testing is one of the Software Testing Companies

OnPath Testing is a software testing service situated in Boulder, Colo. It was founded in 2009. They have a team of 6 people who specializes in providing application testing services. OnPath Testing worked on regression analysis for a software product company.

Former Clients

  • Mapquest
  • BioTRUST
  • English360
  • Aircel

Core Services

  • End to End Testing
  • Integration Testing
  • Regression Testing

18. QA Madness

QA Madness is one of the Software Testing Companies

QA Madness is a software testing company located in Vilnius, Lithuania, and has a Ukraine office. It was founded in 2008, and they have a team of 58 people specializing in application testing. They provide testing services to midmarket and enterprise clients in the eCommerce industry. QA Madness provided functional testing for a Magneto maintenance company.

Former Clients

  • The Fray Design
  • FitForMe
  • Envision Group
  • Elgentos

Core Services

  • Web Application Testing
  • Mobile Application Testing
  • Wearables Testing
  • Manual Testing
  • Automated Testing
  • QA Audit and Consulting
  • Testing Documentation
  • Desktop App testing

19. AFour Technologies

AFour is one of the Software Testing Companies

AFour Technologies is another software testing company located in Redmond, Washington, with an office in Pune, India. It was founded in 2007; they have a team of around 300 employees who provide web development, testing, and UI/UX design services. AFour Technologies ran security testing for a cloud data company.

Former Clients

  • Stellus
  • ExtraHop
  • Jobaline
  • Verizon

Core Services

  • QA Leadership
  • Test Automation Services
  • Performance Testing
  • Cyber Security Testing Services

20. TestArmy

TestArmy is one of the Software Testing Companies

TestArmy is a software testing agency which is located in Wroclaw, Poland. It was founded in 2010. They have a team of 66 employees who provide application testing, UX/UI design, and cybersecurity services primarily for small and midmarket businesses.

Former Clients

  • ExplainEverything
  • Nomtek
  • Tui
  • Samsung

Core Services

  • QA Consulting
  • Security Testing
  • Functional Testing
  • Performance Testing
  • Test Automation


Before you stop the application development process and deem it for the software that it is time to market, ask yourself this: Is your software ready for market? Will your customers be satisfied?

If your answer is NO, then maybe it is time for you to consider independent software testing and security testing services to perform software testing and quality checks on your software.

There are multitudes of software testing solutions that can support app development. 

Some of them might prove to be the ideal testing solutions that your IT consulting firm is looking for to enhance your web application.

Frequently Asked Questions

Which is the best company for software testing?

There are various quality assurance services (QA) that make it to our top software testing companies list. 
Some of them are such as indium software, testarmy, afour technologies, vtest, QA madness, Onpath testing, KiwiQA Services, Testrig technologies, Usertesters, Xbosoft, QA testlab, testmatick, Testfort QA lab, Fleek IT solutions, Abstracta Inc., DeviQA, Quality Logic, etc. are well known.

What are software testing services?

As the name suggests, software testing is a testing solution performed by software engineers that verifies whether the actual results and expected results of the software resemble or not.
Any software development company requires testing and QA services to deliver error-free software and enhance their customer experience.
Software testing services are independent software testing companies that allow companies to outsource their developed software testing.

Do software testers make good money?

Depending on your experience, the company you are working for, and a few other factors, software testers’ salary varies. However, an average software tester in the US can make approximately $45,993 to $74,935.

Is software testing a promising career?

Software testing is required by every organization developing any software and wants to deliver it to the public. With new mobile apps coming every second, new websites launched every day, and new e-commerce platforms rising continuously, software testers’ needs will always be there. There is no shortage of opportunities in the testing industry, but first, you need to make yourself an excellent tester.
Various skills such as technical skills, analytical skills, attitude towards testing, passion for testing, productivity, and excellent written and verbal communications are required for being a good tester.

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