Top Software Testing Companies

Are you searching for a software testing company? Check GoodFirms list of top software application testing companies to find a reliable name in the testing industry. To ensure your software application provides frictionless user-experience to users, you must get the software thoroughly tested by an expert software testing services provider. To help service-seekers like you, GoodFirms has curated a list of internationally acclaimed testing companies based on performance indicators like testing quality, support provided, total experience in testing domain and others. Explore the below list to pick a testing company that best suits your requirements:

Top Mobile App Testing Companies
Filter Reset
Sort By
Most Reviews
Hourly Rate
Select
Employees
Select
Location
Select
Advanced Filter
Clear filter
Filter Reset
Sort By
Most Reviews
Hourly Rate
Select
Employees
Select
Location
Select
Industry
Information Technology
Client Focus
Select
No. of Reviews
All Companies
Overall Ratings
All Companies
Company Certification
Select

List of Top Software Testing Companies | Best Software QA Companies

  • 1. LambdaTest

    Cross Browser Testing Cloud
    Visit website

    LambdaTest is a scalable cloud-based cross browser testing platform designed to offer all website or web app testing need to cloud infrastructure. LambdaTest platform helps you to ensure your web app elements (such as JavaScript, CSS, HTLM5, Video...etc.) render seamlessly across every desktop and mobile web browser wi ... learn more about LambdaTest

    Visit website
    < $25/hr
    50 - 249
    2017
    United States
  • 2. UTOR - QA and Testing partner

    Easily managed QA team for growing dev. company
    Visit website

    Get more from outsourced QA services – keep your software testing under control UTOR is an easily managed Software Testing company that helps growing product and development agile teams to implement their business ideas. We extend your in-house QA capabilities, automate where possible, bring in the rig ... learn more about UTOR - QA and Testing partner

    Visit website
    $25 - $49/hr
    10 - 49
    2016
    Ukraine, United Kingdom
  • 3. Impact QA services LLC

    Software Testing and Quality Assurance Company
    Visit website

    ImpactQA is the global independent software testing & QA consulting company. 10 years of excellence. Delivering unmatched services & digital transformation to SMEs & Fortune 500 companies. Headquartered in New York and having operations in India, London, Dallas, Munich and Germany. The in- ... learn more about Impact QA services LLC

    Visit website
    $25 - $49/hr
    250 - 999
    2011
    United States, India
  • 4. KiwiQA Services

    One Click Away from finding experience QA agency
    Visit website

    KiwiQA Services is an Australia based quality focused & knowledge-centric firm. KiwiQA Services, offers a wide range of testing solutions and services across industry domains, with a primary focus on risk management and implementable solutions. KiwiQA is dedicated to “Quality” to provide world-class tes ... learn more about KiwiQA Services

    Visit website
    < $25/hr
    50 - 249
    2009
    Australia, India
  • 5. Testscenario

    Test The Experience
    Visit website

    Testscenario, founded in 2014, is a one-stop shop for all of your QA needs and desires. We are a passionate Software testing firm that provides a wide range of customers with Quality Assurance Software testing services. Testscenario is a specialist QA and testing firm with more than 8 years of experience in the f ... learn more about Testscenario

    Visit website
    $25 - $49/hr
    10 - 49
    2014
    India
  • 6. QA Mentor

    CMMI appraised, ISO certified Testing Company
    Visit website

    QA Mentor is multi-awards winning a CMMI Level 3 SVC + SSD v1.3 appraised, ISO 27001:2013, ISO 9001:2015 and ISO 20000-1 certified leading software testing company headquartered in New York. With 313 certified QA Professionals in 8 different countries offering more than 30 QA Testing Services and covering all time zone ... learn more about QA Mentor

    Visit website
    < $25/hr
    250 - 999
    2010
    United States, India
  • 7. Abstracta

    Passionate testing creates engaging software
    Visit website

      Abstracta is a leading, pure-play and independent software testing services company founded in 2008 with offices in California and Latin America. We offer testing consultancy services centered on building custom, dedicated testing teams. Our teams have the added value of being able to leverage all of Abstract ... learn more about Abstracta

    Visit website
    $50 - $99/hr
    50 - 249
    2008
    United States, Uruguay
  • 8. QAlified

    Building Quality | QA and Software Testing Company
    Visit website

    QAlified is a software testing and quality assurance company specialized in solving quality problems by reducing risks, maximizing efficiency and strengthening organizations. An independent partner to evaluate software quality with experience in different technologies for any type of software.

    Visit website
    $25 - $49/hr
    10 - 49
    1992
    Uruguay, United States
  • 9. Next Big Technology(NBT)

    Best Web & Mobile App Development Company
    Visit website

    Next Big Technology (NBT) is a premium Web & App Development firm established in 2009. NBT always uses the latest technologies for Website & Mobile App development. As an applications development company, we know how to build websites and apps that utilize proper design and programming to build products that ... learn more about Next Big Technology(NBT)

    Visit website
    < $25/hr
    50 - 249
    2009
    India, Australia
  • 10. SimbirSoft

    We create world class software products & services
    Visit website

    SimbirSoft was founded in 2001 to create world class software products and services for our clients. We develop custom software, mobile applications, complex web services, desktop applications, client server systems, and provide quality assurance services. Our team of experienced software engineers, quality assurance e ... learn more about SimbirSoft

    Visit website
    $50 - $99/hr
    1,000 - 9,999
    2001
    Russia, United States
  • 11. Bugraptors

    Leaders in Software Testing & QA Services
    Visit website

    Established in 2016, BugRaptors is an independent quality assurance and software testing company. Listed as one of India and the USA's top software testing companies, the company provides a highly diversified range of services varying from standard testing services, specialized testing services, to test adviso ... learn more about Bugraptors

    Visit website
    < $25/hr
    250 - 999
    2016
    India, United States
  • 12. a1qa

    Software Testing and Quality Assurance Company
    Visit website

    a1qa is an independent software testing and quality assurance company. Headquartered in Lakewood, Colorado, a1qa has its locations across the globe. With over 1,100 QA professionals on board and over 19 years of experience in providing services across a range of verticals, a1qa has built up a rep ... learn more about a1qa

    Visit website
    $25 - $49/hr
    1,000 - 9,999
    2003
    United States, United Kingdom
  • 13. Apphawks

    Software Testing & QA Company (Poland)
    Visit website

    We are a software testing company from Poznan, Poland. We housed QA Engineers to test client’s web or mobile application through quick Body & Team Leasing or Project-Based Outsourcing. We had a chance already to work with clients from the US, UK, Sweden, Dubai or Netherlands. And we worked for ... learn more about Apphawks

    Visit website
    $25 - $49/hr
    2 - 9
    2017
    Poland
  • 14. Ubertesters

    beta testers management, crowdsourced testing
    Visit website

    Ubertesters is the leading global provider of a cloud-based, process management tool for mobile applications beta testing to ensure an accurate, fast and cost effective mobile testing process that results in high quality, flawless, mobile app.

    Visit website
    $25 - $49/hr
    50 - 249
    2012
    United States
  • 15. PFLB

    Performance Engineering Company
    Visit website

    PFLB specializes in performance testing and performance engineering services. We help companies like Tinder, Samsung, and Moody's find and resolve performance bottlenecks such as ill-performing API calls or slow database queries. Our deep understanding of the space helps companies gain more confidence ... learn more about PFLB

    Visit website
    $50 - $99/hr
    250 - 999
    2008
    United States
  • 16. SHIFT ASIA

    Quality and Security Assurance Company in HCMC
    Visit website

    SHIFT ASIA is a leading quality assurance firm located in HCMC Vietnam founded in 2016. As part of SHIFT group, it has served 300+ clients in greater APAC region, enabling quality transformation and automation for their products with technological edge and tailored customer services. In addition to havin ... learn more about SHIFT ASIA

    Visit website
    < $25/hr
    50 - 249
    2016
    Vietnam, Singapore
  • 17. QA Madness

    Your Software Quality Assurance Partner
    Visit website

    QA Madness is an IT service company with a strong focus on QA and testing. Our team helps businesses release better software products by covering those parts of an SDLC you need assistance with.  We work with clients from all over the globe and a variety of industries, including e-commerce, healthcare, logistics, ... learn more about QA Madness

    Visit website
    $25 - $49/hr
    50 - 249
    2013
    Lithuania
  • 18. Testmatick

    Quality is never too much
    Visit website

    TestMatick is a leading provider of top quality software testing services. The company was founded in 2009 and headquartered in New York, USA. Our strong team of testers can start testing your project of any complexity within 24 hours.

    Visit website
    NA
    50 - 249
    2009
    United States, Ukraine
  • 19. Agilites

    Outsourcing Software Development | Ukraine
    Visit website

    Agilites offers software development and testing outsourcing services in the form of building dedicated teams of Web/Mobile Developers, QA engineers, PMs, and other IT experts who create and ensure the quality of software products for companies in different industries. We also provide independent testing and QA of soft ... learn more about Agilites

    Visit website
    $25 - $49/hr
    50 - 249
    2012
    Ukraine
  • 20. UpDoer Technology

    An Independent Software Testing Service Agency
    Visit website

    UpDoer is an independent software testing and QA company and has established with the aim to deliver high-quality products according to the current market trends with the help of complete software testing/QA process. "We believe in work" and not just talking about work. We follow the best Quality Assurance pr ... learn more about UpDoer Technology

    Visit website
    < $25/hr
    10 - 49
    2017
    India
  • 21. Cyber Infrastructure Inc.

    On mission to Enhance lives of Billions of users!
    Visit website

    Our mission is to Empower and Enhance the lives of Billions of users through Profound technology solutions. We invite you to Think Big and join this movement as our Clients, Partners and Employees.   Our services are designed to take your business to the next level, re ... learn more about Cyber Infrastructure Inc.

    Visit website
    $25 - $49/hr
    1,000 - 9,999
    2003
    United States, United Arab Emirates
  • 22. 247 Labs

    Top Notch Developers To Deliver Excellence & Value
    Visit website

    247 Labs is a team of trained, certified and experienced developers, designers & product managers who follow a hybrid approach of Lean & Scrum process to deliver application development projects with excellence. We work with Agencies, startups, SMB (Small Medium Businesses) and other industry agencies t ... learn more about 247 Labs

    Visit website
    $100 - $149/hr
    50 - 249
    2013
    Canada
  • 23. NEX Softsys

    IT Partner for Global Clients
    Visit website

    NEX Softsys is a technological partner for global enterprises and startups, with the mission of empowering industries through excellence through integrated IT solutions. Since 2009, we have provided innovative software and data-based solutions to many companies, attending various countries, including the USA, Australia ... learn more about NEX Softsys

    Visit website
    $25 - $49/hr
    50 - 249
    2009
    United States
  • 24. DigiPrima Technologies Pvt. Ltd.

    Trusted Partners for Software Solutions
    Visit website

    The company’s mission is to help global organizations overcome technology challenges of Digital Transformation with the focus on new and emerging technologies, which we believe should make a positive impact on each area of our lives, making it simpler, smarter, and opening new promising horizons. Delivering in ... learn more about DigiPrima Technologies Pvt. Ltd.

    Visit website
    < $25/hr
    10 - 49
    2016
    India, United States
  • 25. Powercode

    We build leading-edge software
    Visit website

    Our passionate, user-oriented designers have an iron grip of the tools we use to build exceptional digital experiences. We believe web development should never be boring. It should never be weak. We never forget that your business goals drive everything. That’s why our beautiful web and mobile designs blend yo ... learn more about Powercode

    Visit website
    $25 - $49/hr
    50 - 249
    2015
    Ukraine, United States
  • Vyshnavi Information Technologies India Private Limited (VIT) is a global Information Technology Company established in the year 2001 with headquarters in Bangalore, having development centers in Bangalore, Pune, US and Canada. Our range of services includes Design, Development and Testing of software components for Pr ... learn more about Vyshnavi Information Technologies (India) Pvt. Ltd

    Visit website
    $25 - $49/hr
    250 - 999
    2001
    India, United States
  • 27. Devstringx Technologies Pvt Ltd

    Product | App Development | Automated Testing
    Visit website

    A culture of innovation has enabled us to create cost-effective and highly scalable software products within budget and timeline for our clients which facilitate their progress and growth. Working as a partner with our clients, we are dedicated to developing effective outsourcing partnerships in order to reduce oper ... learn more about Devstringx Technologies Pvt Ltd

    Visit website
    < $25/hr
    50 - 249
    2014
    India
  • 28. QATestLab

    QA services | Web & Mobile testing
    Visit website

    Hello! Thank you for the visiting our profile. QATestLab is an independent provider of QA (Quality Assurance) and software testing services. Located in Ukraine with Head Office in Kyiv, we provide services worldwide with clients at 5 continents. As a pure-play testing provider, we believe quality and success go hand ... learn more about QATestLab

    Visit website
    < $25/hr
    50 - 249
    2005
    Ukraine
  • At Last Mile, we believe in going the extra mile. We strive to ensure that there are no traffic jams in the crucial final leg. Our goal is to enable you to deliver to your quality objectives. We deploy our release management & testing expertise as a catalyst to assist you until you are ready to deliver. We hel ... learn more about Last Mile Consultants Technology Solutions Pvt Ltd

    Visit website
    $25 - $49/hr
    10 - 49
    2011
    India
  • 30. Kualitatem Inc.

    Quality Growth Patners
    Visit website

    Kualitatem Inc. is an independent Software Testing Company, Information Systems Security and Auditing Company providing services to a global clientele. 

    Visit website
    < $25/hr
    50 - 249
    United States
  • 31. BespokeQA

    Crafted QA services!
    Visit website

    Founded by a real QA tester BespokeQA has dealt with testing, structuring, creating solutions for more than twenty-five clients across ten industries for last more than one year. Our mission is to help clients make distinctive, lasting and substantial improvements in their business and to continue building a great comp ... learn more about BespokeQA

    Visit website
    < $25/hr
    2 - 9
    2019
    India
  • 32. QTeam Software Solutions

    We are creating bespoke software solutions
    Visit website

    Our purpose is to deliver complex digital solutions in web related industries like e-learning, e-commerce and social media marketing.

    Visit website
    $50 - $99/hr
    2 - 9
    2016
    Romania, United Kingdom
  • 33. Fleek IT Solutions

    Cost-effective Software Testing Services
    Visit website

    Fleek IT Solutions is one of the best independent software testing companies. We are engaged in providing cost-effective testing services to help you avail quality assurance services. We have been in this business for years of time and have adapted to the latest technologies to serve you better all the time. We ha ... learn more about Fleek IT Solutions

    Visit website
    < $25/hr
    50 - 249
    2016
    India, Netherlands
  • 34. Kavichki

    Software Testing and Quality Assurance
    Visit website

    We specialize exclusively in independent software QA and testing services. But our task is not limited to finding defects and preventing them. Our goal is much broader — to help you create a quality product and make sure that the functionality will profit for your business. Since 2010 our team has successfully ... learn more about Kavichki

    Visit website
    < $25/hr
    10 - 49
    2010
    Russia
  • 35. VisionQA Services

    Helping people to get top notched quality products
    Visit website

    VisionQA is the global leader in next-generation software testing and QA Consulting. We help SMEs and Fortune 500 companies to deliver digital transformation and technology services, enabling global 50+ clients to stay one step ahead of disruption. For over 5 years we have been providing independent software QA and ... learn more about VisionQA Services

    Visit website
    < $25/hr
    10 - 49
    2020
    India
  • 36. OKQA

    More than just testing
    Visit website

    Why OKQA is more than just testing? We do not only provide manual, automation software testing services and augment separate specialists or QA teams for projects. We help to set up QA processes in a company or on a project granting you full autonomy from external QA teams in the future. How does it work? Of co ... learn more about OKQA

    Visit website
    < $25/hr
    2 - 9
    2020
    Ukraine
  • 37. Asabix

    Custom software development
    Visit website

    Asabix is ​​a software development company in the fields of logistics, warehouse accounting, booking, restaurant, e-commerce, and online exchangers. Our projects work on the frameworks of Symfony, Laravel, and Yii2. Additionally, the company has many years of experience developing applications for iOS and Androi ... learn more about Asabix

    Visit website
    $25 - $49/hr
    10 - 49
    2017
    Ukraine
  • 38. QA Solution

    Quick as automated testing, Clever as a human
    Visit website

    QAsupermarket is a place where you can get your software tested by professionals with the maximum automation of processes and with the minimum time and money expenses. QAsupermarket will cover all test types you need on any platforms you need. Professional tools such as Online Bug Tracking System and easy-to-use ... learn more about QA Solution

    Visit website
    NA
    2 - 9
    2018
    United States
  • 39. Zappletech

    First-class Automation Testing Agency
    Visit website

    100% focused on Test Automation to deliver frameworks and solutions that reduce costs & increase efficiency to get better digital products, faster. Test automation first approach is a main driver in modern agile development. Achieving better automated tests coverage increase software testing speed twice, providi ... learn more about Zappletech

    Visit website
    $25 - $49/hr
    10 - 49
    2015
    Poland, Ireland
  • 40. Outpost QA

    Your QA software test team in Mexico
    Visit website

    We are a nearshore boutique Quality Assurance firm that focuses on helping your products reach your customers with maximum quality. Unlike other outsourcing companies, our testers integrate very tightly with your team, helping your developers reach their goals. Our rates are lower than hiring in the United Stat ... learn more about Outpost QA

    Visit website
    $25 - $49/hr
    10 - 49
    2020
    Mexico
  • 41. IOTTIVE PVT LTD

    LET'S CONNECT THE THINGS TOGETHER
    Visit website

    Iottive mainly provides mobile application development services & embedded services. Our expertise lies in building iOS and Android applications, Bluetooth Applications, IoT Applications, iBeacon Applications, Hardware and firmware development. Our mobile apps and solutions for iPhone, Android, We ... learn more about IOTTIVE PVT LTD

    Visit website
    < $25/hr
    10 - 49
    2016
    India
  • 42. KMS Technology

    Bright Minds. Brilliant Solutions.
    Visit website

    KMS Technology is a global market leader in software development, testing services, and top-tier technology consulting. With a customer-centric approach, both our US-based and offshore development teams aim to fuel organizational innovation by helping modernize your existing systems or bring new software visions to lif ... learn more about KMS Technology

    Visit website
    NA
    1,000 - 9,999
    2009
    United States, Vietnam
  • 43. Krify Innovations (UK)

    Passionate to create value
    Visit website

    Krify is a bespoke mobile applications and software services provider based in UK, USA and India. Creating value for our clients is our passion and software technology is our forte. Our core competency includes Mobile App(Android, iOS, and Flutter), Web, Wearable app development and Digital marketing services. Krify ex ... learn more about Krify Innovations (UK)

    Visit website
    < $25/hr
    50 - 249
    2005
    United Kingdom, India
  • 44. CodeBright

    Software Made Simple
    Visit website

    We at CodeBright believe in improving the world using technology. We work with startups, small/large companies, and non-profit organizations to bring Minimal Viable Products (MVPs) to the market, improve/streamline/automate business processes, raise efficiency/productivity, reduce costs, solve business challenges, and ... learn more about CodeBright

    Visit website
    NA
    50 - 249
    2015
    United States, United Kingdom
  • 45. Algoworks

    Enterprise Mobile Apps Development Company in USA
    Visit website

    Mobile: We provide end-to-end mobile design and development services globally. From award-winning B2C native applications to robust cross-platform enterprise-grade mobile solutions, Algoworks innovates applications with latest tech trends. Feel free to have a quick discussion with our architects to find ou ... learn more about Algoworks

    Visit website
    < $25/hr
    250 - 999
    2006
    India, United States

Buyer’s Guide

What is Software Testing?

The software testing definition connotes the process of verifying whether the final software solution resembles the anticipated outcomes. Software testing assists in distinguishing bugs/errors or gaps in the coding as well as any conflict in the set of requirements provided by the client. Moreover, the software testing services also warrant that the software system is error-free.

How Does Software Testing Benefit Businesses?

Software testing is extremely beneficial for the successful deployment of software. The following are the most vital advantages of performing software testing:

1. Saves Money:

Some businesses believe investing in software testing is costlier, however, in the long run, it actually saves a substantial amount for the business. Deploying a faulty software will not only cost you but also your clients a lot of money. An undetected bug during the later stages of the development process is ideally more difficult and expensive to resolve. An undetected bug during the later stages of the development process is ideally more difficult and expensive to resolve.

2. Prevents Calamities:

Defects in software designed for emergency purposes or having crucial functions such as emergency alerts or monetary transactions can have disastrous effects. Communication breakdown, loss of data, or system blackouts can lead to complete system failure. Software testing solutions resolve these issues in the initial development phase which helps businesses avoid catastrophes.

3. Builds Reputation:

An error-free software will gain more praise from its clients and users. Clients are more likely to trust a business that delivers a bug-free software. This can only be achieved with the assistance of top software testing service companies. Moreover, automated software testing can also help build long-term relationships with the clientele, while boosting revenue.

4. Offers Customer Satisfaction:

As mentioned above, clients rely more on companies that offer problem-free software. Simultaneously, a software that has a smooth operation and does not glitch provides unmatched client satisfaction. Moreover, for any company, delivering exceptional user experience is crucial as that can make or break the product.

5. Easy Integration:

The software may not necessarily work independently. Software testing techniques can come handy in such situations in ensuring that the software seamlessly integrates with any existing program. Automated software testing can also provide detailed analysis regarding the performance of all the active systems.

Which Are the Different Software Testing Methodologies?

Software Testing Methodology is the strategy implemented to deliver a product that meets the clients’ expectations. The testing methodology defines the objective of the test, its strategies, and deliverables. The testing models are somewhat similar to software development structures.

The most popular testing methodologies are the Waterfall Model, Iterative development, and Agile methodology.

1. Waterfall Model 

The waterfall testing model progresses sequentially similar to the software development phase. Each phase commences only once the previous phase is finished.

This software testing model is very simple to design and handle. The testing requirements are clearly outlined beforehand, which allows easy testing of each segment of the system. However, since each phase can only begin once the previous stage is cleared, it makes it difficult for the model to accommodate unplanned events.

2. Iterative Model

In iterative software development, a larger project is subdivided into smaller parts, which are subjected to numerous iterations of the waterfall methodology. The complete system undergoes testing, with the completion of an iteration. The feedback generated from testing is subsequently incorporated into the next cycle.

The chief benefit of iterative development is that the reports from each cycle of the tests are used in the next cycle, enhancing the testing process. There is a drawback, however, as this methodology increases communication overheads.

3. Agile Methodology

In Agile methodology, the software is created in incremental, rapid cycles. Similarly, Agile testing analyses the codes after every cycle. This warrants that every bug is fixed before the next release.

This testing procedure is ideal for projects that require frequent changes or moderations. Although for the success of this testing methodology, it is crucial that there is a constant interaction between the software testers, developers, and clients.

What Are the 6 Stages of Software Testing Life cycle?

Software Testing Life Cycle (STLC) refers to the various phases of the software testing procedure. Software testing is a very significant stage in the software development life cycle (SDLC) which determines the quality of the end product. During the development stage of SDLC, the software testers analyze and establish the scope of testing. This is essential as it significantly reduces the software test cycle time. Post-testing stage, the software is then fixed for bugs and ready for deployment.

1. Requirement Analysis:

Requirement Analysis is the primary step of the Software Testing Life Cycle (STLC). This phase concentrates on understanding the requirement bar set by the client. The quality assurance team coordinates these details with the stakeholders to better assess which systems are to be tested. This stage is executed in parallel to the Requirement gathering phase of SDLC. 

2. Test Planning:

Test Planning as the name suggests is crucial for formulating all testing plans. The software testers estimate the effort and cost invested in testing the project. The software test plans also classify the metrics, thereby outlining the course to gather and track those metrics.

3. Test Designing:

The next phase is test designing or test case development. In this, the software testers transcribe multiple detailed test cases. The testing team analyzes and prepares the required test data and breaks it down into numerous sub-tests to improve coverage. This step also determines the test exit criteria, highlighting when to conclude the testing.

4. Test Environment Setup:

Quality analysts set up a test environment with the intention of duplicating the end-users’ work conditions. The test environment set up includes installing a database server, front-end operating environment, client operating system, etc. Since this stage performs independently, software testing teams can establish a testing environment simultaneously with the test design phase. 

5. Test Execution:

Once the testing team formulates the test designs and sets up the test environment, test execution is launched at a full pace. This phase ensures that the entry criteria of the testing module are met and each output is documented appropriately. The tests are repeated sequentially until every bug and system errors are resolved.  

6. Test Closure:

This is the final stage of the software testing life cycle, which concludes the process of testing. This phase is essential since it ensures that all the open severity defects are tackled as well as all the test cases are executed deliberately. The test matrices, final test report, test closure reports, etc. are deliverables after this point.

What Are the Types of Software Testing?

There are two chief software testing types:

  • Functional Testing
  • Non-Functional Testing

1. Functional Testing:

Functional testing authenticates the software system against operational requirements as well as specifications. The main goal of functional testing is to verify the key operations of the system, its basic usability, and accessibility while checking for error conditions.

The four main Functional Testing categories are as follows: 

1. Unit Testing: Unit Testing focuses on individual components of the software to ensure that the system functions the way it is expected. Unit tests aid software testers in fixing bugs and defects in the earlier stages of the development cycle. Hence, coders can make changes in the codes as required. 

Unit testing can be automated as well as performed manually. The testers can isolate groups of code and test them rigorously. This helps in identifying unnecessary dependencies amongst the codes which should be eliminated. A vital benefit of unit testing is that it authorizes programmers to restructure existing codes to ensure the module still functions flawlessly. 

2. Integration Testing: Integration testing logically assembles software modules in a group and tests them. This allows testing service providers to identify and resolve bugs hindering communication between the different software modules. Integration testing also covers the impromptu changes made in the software which might not have been unit tested.

This testing procedure mainly concentrates on the data flow between segments of software. For instance, when a user enters their login credentials and clicks on the login button, they must be directed to the main page of the software. To ensure this, integration testing analyzes the interface link between the login page and the homepage. Integration Testing can be executed via the Big Bang approach or Incremental approach.

3. System TestingSystem testing validates the complete application as a whole. It ensures that the end-to-end functioning of the system meets the quality standards set by the client. System testing is generally performed by independent software testers who haven’t contributed to the development of the software in any way. This ensures that the results and reports delivered are accurate and unbiased.

Automated software testing also studies the result of every input in the system to ensure that desired outputs are achieved. Moreover, it also tests the experience of the users. Apart from the business requirements, system testing also validates the architecture of the application.

4. Acceptance TestingAcceptance testing is also known as User Acceptance Testing (UAT), is performed to assess whether the system is ready for deployment. These tests are done by clients or end-users to ensure the integrity of the application. During software development, there are chances that certain user requirements may not be properly communicated to the developers. This may result in the development of a system that is extremely different from what the user requested.

Acceptance testing implements the following steps.

  • Analysis of Client Requirements
  • Distinguish Test Scenarios
  • Formulating UAT Test Plans
  • Run Test Cases
  • Record Results
  • Confirm Objectives

Once this testing procedure is completed and the system passes the tests, the program is then moved to production.

2. Non-Functional Testing:

Non-Functional Testing verifies the non-operational aspects of a software application such as performance, usability, reliability, etc. It is intended to assess the readiness of the software that is not tackled by functional testing.

For example, Non-functional testing checks the number of people who can simultaneously login to an application.

The key objectives of Non-functional testing are:

  • Increase usability, maintainability, efficiency, and other criteria of the product.
  • Decrease production risk and cost.
  • Optimize product installation.
  • Accumulate metrics for internal R&D.

The following are the different software testing types of Non-functional testing modules:

1. Installation: Installation testing detects and resolves any error that may occur during the installation of the software.
2. Localization: Software testing companies assess the software for it to work according to the culture and setting of the deployment location.
3. Performance: As the name suggests, performance testing is done to warrant the smooth-working of the software.
4. Recovery: The software testing companies must ensure that after any sudden crash in the system, it must be easily recoverable. This is analyzed during Recovery Testing.
5. Reliability: Reliability testing checks the extent of the software system to which it can continuously perform specific tasks without hindrance.
6. Security: This parameter defines the way software is safeguarded against sudden or deliberate attacks from either internal or external sources. 
7. Stress: Stress testing studies the limit of the software with an increased workload to which it can operate without lagging.
8. Usability: This ensures that the user can learn, operate, and communicate with the system effortlessly.
9. Volume: The software testing service providers maintain the system’s capacity to handle a huge volume of data without affecting its response time.

Apart from the above mentioned, testing service companies also offer Automation testing, Compatibility testing, Compliance testing, Load testing, etc.

Businesses can also opt for additional software testing tools to further improve the implemented software testing techniques. Some of the popular software testing tools are A/B testing software, QA testing software, Beta testing software, etc.

GoodFirms Research Process

Testing is an extremely crucial part of the software development process. However, an even more important task is to select the ideal partner out of all the available software testing service companies. GoodFirms focuses on highlighting the top software testing companies after analyzing them on the basis of an extensive research methodology.

The researchers at GoodFirms have ranked these testing companies after studying their merits across numerous qualitative and quantitative determinants. These software application testing companies have bagged a position in the above list due to their outstanding software testing services and expertise in testing support. Furthermore, GoodFirms acknowledges their contribution to the market along with the number of years they have been in the testing industry. Our team of experts also calculates the feedback and reviews these testing companies have received from their prior clients to further assess their reliability.

We strive to bring the best software testing service providers in the spotlight by marking them in every aspect of performance. This allows the service seekers to discover and subsequently hire the best software application testing company for their product. The above-listed testing service companies have worked for small scale, mid-scale as well as large-scale enterprises. They have a team of software testers who have years of experience in providing top software quality assurance services. 

As a dedicated research and review platform, getting listed with us helps businesses gain a standing in the industry while building a reputation amongst their clients as well as competitors. GoodFirms encourages all new as well as established software testing companies to participate in future research processes by submitting proof of their work and getting listed in our 'Research' division.

Got A Question? Ask Away!
Contact Us