Sort By:

List of the Best Software Testing Companies & QA Firms

  • AwsQuality

    A Salesforce Development & Consulting Company
    Visit website

    AwsQuality is a Salesforce CRM practice solutions and implementation provider having highly skilled and competent salesforce certified developers. We’ve worked with customers from various industries as their trusted partners assisting them with architecture, design, development and managing wide range of solution ... read more about AwsQuality

    "The best Saleforce service provider we have worked with !!!"
    Mudit Singh, Director Product and Growth at LambdaTest
    < $25/hr
    10 - 49
    2014
    India
  • Zenesys Technosys

    Creating a New Era in Software Development
    Visit website

    Zenesys Technosys - One stop solution for all your digital needs.  If you are looking for a global firm that undertakes offshore software development services and provides high-quality professional support to customers through the whole development process, utilizing cost-effective methods; you are at the right ... read more about Zenesys Technosys

    "Best in their field with professionalism and skills"
    Alaia Sweeney, Delivery Head at Alpha Sense
    $25 - $49/hr
    50 - 249
    2011
    India
  • We expedite the development and QA processes to deliver the product & services within or before the suggested time period.Our services comes with lifetime support facilities. We maintain and constant upgrade our products according to the latest technologies and versions.Privacy and confidentiality of our clients ar ... read more about MetaDesign Solutions

    "Web Application Development Of Our Medical Device Development Company Very Effectively"
    kanika Taneja, Project Manager at Pathkits
    $50 - $99/hr
    250 - 999
    2007
    India
  • AMgrade

    Full-Cycle Web&Mobile Development Team
    Visit website

    Since 2010, AMgrade has worked with leading companies and scalable start-ups to build custom solutions for their business needs. Industries we serve:  - Healthcare  - Real Estate - Logistics - Startups Services we provide: 1. Business Requirements Analysis 2. MVP development ... read more about AMgrade

    "Reliable website and inner system for our modern clinic successfully built and launched by AMgrade!"
    Anna T., Head of PR and Marketing Department at Healthcare Clinic
    $25 - $49/hr
    10 - 49
    2010
    Czech Republic
  • QA Fiction - A global leading IT outsourcing organisation providing Quality Assurance services with a vision to fully satisfy our valuable clients with high quality & defect free software at an affordable cost. We bring in the culture of quality orchestration across your business, technology and operational land ... read more about QA Fiction

    "We Always had a productive discussion on testing challenges and solutions."
    Atul Patil, Automation Enthusiast | Selenium | Cypress | Playwright | Parasoft | Rest Assured | SOAP UI | Jmeter at J P Morgan Chase
    < $25/hr
    10 - 49
    2022
    India
  • 9YARDS IT TECHNOLOGY PRIVATE LIMITED

    Leading Software Development & Testing Company
    Visit website

    9Yards Technology is a preeminent IT service provider rendering top-notch IT services worldwide. Since our inception, we have successfully served 500+ global clients as their strategic technology partners, including numerous Fortune 500 companies, tech giants, and a multitude of progressive startups. Our efficacious en ... read more about 9YARDS IT TECHNOLOGY PRIVATE LIMITED

    "Experts in the field of QA. Best outsourcing team to work"
    RP Singh, Sr. Business Manager at Mobilecoderz
    < $25/hr
    50 - 249
    2020
    India
  • KMS Solutions is a premier technology consulting and solutions provider that empowers BFSI enterprises to optimize operations, drive innovation and help them enhance their product & service offerings through the seamless integration of cutting-edge technologies and tailored solutions. To learn more about KMS Sol ... read more about KMS Solutions

    "We need a tool to help us gain better insights into how users engage with our digtal product. KMS Solutions recommended a product analytics solution t"
    Thuan Do, Teacher Manager at Schola
    NA
    250 - 999
    2019
    Vietnam
  • Appkodes

    Brings your Dreams to Come True
    Visit website

    Welcome to Appkodes: Your Pathway to Successful Online Business Solutions! With over a decade of experience and a leading position in the industry, Appkodes empowers entrepreneurs and startups to transform their business dreams into reality. We've proudly served as the driving force behind countless success stories ... read more about Appkodes

    "Awesome company to work with. I'm very satisfied about them"
    Marco Santullo, CEO at 4Chatting
    $25 - $49/hr
    50 - 249
    2012
    India
  • Altamira

    Holistic care for your digital solutions
    Visit website

    Altamira is a global digital transformation partner, specializing in helping organizations scale faster and more sustainably than anyone else. With market-leading capabilities across all aspects of product and technology development, we make a difference where it matters, when it matters. Mobile and web produc ... read more about Altamira

    "Experienced Professionals Producing Top Quality Product"
    Yomi O
    $50 - $99/hr
    50 - 249
    2009
    United States
  • TopSquad

    Your business, our development force
    Visit website

    At TopSquad, we specialize in delivering IT solutions and services that are customized to the unique needs of established companies seeking to achieve further business growth. Our team possesses extensive knowledge of modern technologies, transparent processes, and in-depth expertise across various business domains. We ... read more about TopSquad

    "4 years experience"
    John Sturgis, Developer at NFR
    < $25/hr
    50 - 249
    2008
    Vietnam
  • LANARS

    Painless innovations provider
    Visit website

    LANARS is an international hardware & software development company. We create the Internet of Things, the Industrial Internet of Things, mobile applications, websites, CRM & ERP systems, and custom enterprise solutions. LANARS was established in 2016 and has headquarters in Oslo (Norway). LANARS is a pain ... read more about LANARS

    "LANARS helped us with adjusting and reengineering of our hardware solutions for a consumer market."
    Sam Nilsen, СТO at Bring AS
    $50 - $99/hr
    50 - 249
    2016
    Poland, United Kingdom
  • 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 ... read more about Agilites

    "Very happy with their testing service."
    Pavel Kovalev, VP Product Development at Websoft
    $25 - $49/hr
    50 - 249
    2012
    Ukraine
  • SOASTA, Inc.

    Load Testing and Performance Monitoring
    Visit website

    In the hyper-competitive online marketplace, providing a better customer experience is the only way to win. It’s a world where milliseconds can add up to millions – and one where performance is everything. But optimizing customer experience goes way beyond measuring speed and engagement.SOASTA gives you a c ... read more about SOASTA, Inc.

    < $25/hr
    250 - 999
    2006
    United States
  • QA Consultants

    North America's largest software testing company
    Visit website

    QA Consultants helps companies across North America protect their reputations for building innovative software products and running reliable systems. QA Consultants accomplishes this by conducting comprehensive quality assurance (QA) software testing. QA Consultants is chosen by quality professionals, prod ... read more about QA Consultants

    $50 - $99/hr
    250 - 999
    1994
    Canada
  • Pegasie Technologies

    Load TestingandSoftware Quality Assurance Services
    Visit website

    Pegasie offers on site and remote services in Software Quality Assurance and Performance Testing. We have built a wide range of expertise on different systems, applications, platforms and networks throughout the years and count over 140 customers in different industry verticals. We offer a wide variety of services incl ... read more about Pegasie Technologies

    $100 - $149/hr
    50 - 249
    2002
    Canada
  • TestingXperts

    Next Gen Specialist QA & Software Testing Company
    Visit website

    TestingXperts is a Next-Gen QA & Software Testing Services provider, co-headquartered in London, UK and Harrisburg, PA in the USA, with offices in the Netherlands, USA, Singapore and offshore test labs in India. TestingXperts’ comprehensive suite of testing services covers Test Advisory, Functional and Non-Fu ... read more about TestingXperts

    NA
    1,000 - 9,999
    2013
    United States
  • Spiral QA

    Full suite of software testing solutions
    Visit website

    Spiral QA gives companies the software testing and quality assurance support they need to create better, more user-friendly web and mobile applications. For over 9 years, our dedicated team of software testers and quality assurance specialists at Spiral QA has been helping businesses build confidence in their products, ... read more about Spiral QA

    "Web Application Testing Partnership "
    Bogdan Nechaev, Chief Knowledge Officer at IM Action
    $25 - $49/hr
    10 - 49
    2011
    United States
  • StrongBox IT Private Limited

    CyberSecurity, VAPT, Performance, Automation
    Visit website

    StrongBox IT, a global  cybersecurity and information security services company specializing in Vulnerability assessments, penetration testing, security audits and compliance audiit requirements. StrongBox IT, through their VAPT services, including network and applocation security testing, has helped leading ... read more about StrongBox IT Private Limited

    "Strongbox has been a great long term security partner for us"
    Aaditya S, Building product at at RevenueHero
    < $25/hr
    10 - 49
    2017
    India
  • test IO

    Fast QA Testing as a Service
    Visit website

    As a global leader in software crowdtesting, we enable fast moving software development teams with a platform for on-demand QA testing throughout the entire development cycle. Test setup takes just minutes, and we dynamically allocate human testers in real-world conditions to fit your specific testing needs. No more QA ... read more about test IO

    "Excellent team. Value for money!"
    Nick woods
    $50 - $99/hr
    10 - 49
    2011
    United States
  • iBeta Quality Assurance

    Outsourced, Independent Software QA since 1999
    Visit website

    Headquartered in Denver, Colorado, iBeta Quality Assurance has been providing critical software testing services for the world’s most trusted brands since 1999. Our full range of on-demand QA software testing services encompasses many different software testing types including functionality testing, mobile testin ... read more about iBeta Quality Assurance

    "Excellent QA Experience"
    Kevin Chan
    $50 - $99/hr
    50 - 249
    1999
    United States
  • Merged Minds

    Professionals with young hearts and open minds
    Visit website

    Merged Minds is a software testing service provider, focusing on supporting projects quality assurance using manual and automated test tools.Our experience goes way back to 2006 with the Merged Minds brand founded in 2017.We can support any software projects using our knowledge covering Functional (ad-hoc, browser comp ... read more about Merged Minds

    "Excellent team work"
    Clarence Jacobson, Test Manager - Contractor at Freelancer
    < $25/hr
    2 - 9
    2017
    United Kingdom
  • Stelo Technology

    Software Testing and QA Company | Testing Services
    Visit website

    We are a team of Experienced, Seasoned and Certified Software Testing & Project management Professionals who help You build Flawless and better IT product with complete Focus on end-users Needs. Our Testing & Project Management consulting helps companies improve products and services, enhance customer experienc ... read more about Stelo Technology

    "Excellent QA Service Provider"
    Vijendra kushwah, SEO Executive at Mangala Construction
    < $25/hr
    10 - 49
    2019
    India
  • Mindful QA

    American Software Testing Company - 10% to Charity
    Visit website

    Award-winning American software testing company with a mission to do good. From donating 10% of profits to charity to being the first carbon neutral QA company, Mindful QA is proud to fuel progress while improving usability for millions of users. Mindful QA has been featured on over a dozen "best software testing ... read more about Mindful QA

    "Skilled, Experienced, and Easy to Work With!"
    Jeff Broussard, CTO at at Wonderwall Consulting
    $50 - $99/hr
    50 - 249
    2018
    United States
  • KualitySoft

    Your Business Deserve KualitySoftwares.
    Visit website

    As an Independent Software Testing & QA Services Partner Company providing QA testing services for any software product. If your software works on Web, Mobile, or on a handheld device, We can test it. Doing Business with us is Easy. We measure up to your expectations. We design, develop and deploy end-to-end soluti ... read more about KualitySoft

    "They measure up to our expectations. Feeling really Confident with KualitySoft Product and Quality Assurance Services. "
    Mr Chaudhry, Director at Chaudhry Family Hospital
    NA
    10 - 49
    2017
    Pakistan
  • Inoxoft

    IEC/ISO 27001, Google, Microsoft Certified Company
    Visit website

    Inoxoft is a custom software development company that gets to realize clients’ business ideas and deliver cutting-edge solutions for several industries including Healthcare, Fintech, Education, Logistics, and Real Estate.Depending on the requirements, the team estimates the best cooperation model for client commu ... read more about Inoxoft

    "Their involvement and dedication from the very beginning are very impressed us"
    Brian Stallings, Founder at Real Estate No Brokers
    $25 - $49/hr
    50 - 249
    2014
    Ukraine
  • Lansoft

    Full-scale product development from idea to market
    Visit website

    Lansoft helps companies around the world launch and operate digital products, build and raise brand awareness through adaptive approach and seamless integration into their current workflow. Over 11 years we develop services & apps that transform business: ERP and CRM systems, Business- and Enterprise ... read more about Lansoft

    "A team of professionals"
    Katsiaryna Danilchyk, Founder at at KD-Advisory
    $25 - $49/hr
    50 - 249
    2011
    Belarus
  • TestDel has developed its services for companies wishing to outsource all or a portion of their software quality activities so they may gain testing efficiencies and reduce administrative burdens associated with in-house QA teams. An established and trusted brand with a global presence and network. TestDel delivers Ons ... read more about Testdel UK LTd.

    "Health Care Industry "
    Lisa Barnett
    NA
    50 - 249
    2016
    United Kingdom
  • Civenty

    High-end IT project | Extended teams
    Visit website

    Covent IT Group carries the spirit and atmosphere of a startup and cherishes customers of all sizes.We are a high-quality provider of IT business solutions for clients all over the world, uniting together 300+ professionals with profound experience in various domains.We have vast experience with small, medium and globa ... read more about Civenty

    "Mobile App - superb and on time! "
    Anastasia Ward, Managing Director at Get Seen Now
    $25 - $49/hr
    10 - 49
    2015
    Ukraine
  • TECHVIFY Software

    Global AI & Software Solutions Company
    Visit website

    TECHVIFY Software is a Global AI & Software Solutions Company based in Hanoi, Vietnam. We aim to be your top-notch Technical partner in your business transformation journey, helping you reduce time and cost for software development; hence, you can enhance the resources and specialize in getting the work done. We ... read more about TECHVIFY Software

    "Impressive problem solving"
    Max Harper, Product Owner at Diginex
    < $25/hr
    50 - 249
    2018
    Vietnam
  • 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 ... read more about Asabix

    "Development multi-page website and website support"
    Olga Novikova
    $25 - $49/hr
    10 - 49
    2017
    Ukraine
  • At Iterators LLC we provide top quality software and mobile testing services. Discover our competitive advantage and let us put it to work for you.Software created in a vacuum is rarely great—great software results from constant iteration, which is why we named our company Iterators LLC. Our testers work outside ... read more about Iterators LLC

    "Hydrow Rowing Machine"
    Jill Willcox
    < $25/hr
    2 - 9
    United States
  • Sapizon Technologies is a leading IT Services & Solutions company, rendering digital transformation to business organizations at a global scale. We started in 2015 to enhance the business world and help our client progress in their respective domains. We are actively providing services all around the globe in count ... read more about Sapizon Technologies

    "Fantastic developers to work with!"
    Ricky
    < $25/hr
    10 - 49
    2015
    India
  • thinkTribe

    Together for better digital journeys
    Visit website

    Established in 2003, SciVisum has grown to become a significant player in the UK Web Performance Monitoring and Testing market. Bridging the gap between business and technology teams by providing a common language, in depth analysis, expert monitoring, intuitive reporting, and comprehensive client support, our portfoli ... read more about thinkTribe

    < $25/hr
    10 - 49
    2003
    United Kingdom
  • 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.Share with us your pitch and ideas, we learn your trade, we will involve our team, technologies, and techniques that will grow and raise your business. We have seen with each customer tha ... read more about QTeam Software Solutions

    "Top notch quality"
    Andrei Dobrin, QA Manager at at Zitec
    $50 - $99/hr
    2 - 9
    2016
    Romania
  • SoftEthica

    We enable the power of Cloud technologies
    Visit website

    Cloud & DevOps as a service We enable the power of Artificial Intelligence & Cloud technologies, accelerating smart Companies. Service powered by professional ethics.   Why you need the DevOps: 01 - Native Cloud Applications Development Your Company can significantly decrease the time-to-mar ... read more about SoftEthica

    "One of the best DevOps services I've ever used"
    Vitalii Perminov
    $25 - $49/hr
    2 - 9
    2019
    United States
  • Trigent Software, Inc

    Custom Software Development Company
    Visit website

    Trigent, founded in 1995, is an early pioneer in IT services and a leading software services company. We believe in partnering with clients across their value chain, assisting them to design, build, deliver, and maintain their products and services that make them the best in their industry. We enable our clients t ... read more about Trigent Software, Inc

    "Excellent engagement and integration with our company. Delivered great value in speeding up an ailing rule engine project of ours."
    Praseed Thapparambil
    $25 - $49/hr
    250 - 999
    1995
    United States
  • Rocketlab is a Swiss-based company that provide experienced software test engineers to small to medium sized businesses within Switzerland, Germany and Europe.Headquartered in Tallinn (Estonia) - known as the most advanced technology spot in Europe, and Zurich (Switzerland) around 100 outstanding and experienced test e ... read more about Rocketlab

    "Excellent QA partner for various projects"
    Peter Hans Baumann
    $50 - $99/hr
    50 - 249
    1994
    Switzerland
  • Global IT APP

    Web/App Development | Design | Digital Marketing
    Visit website

    Global IT APP are web development, mobile app development, web design, digital marketing and agency offering a wide range of services around the world. Incorporated in 2011, The team of engineers and developer at our firm are the best in their own way and we promise to provide timely service to our esteemed client. We ... read more about Global IT APP

    "Very Skilled Web developer"
    Suvendu Sarkar, Sr.Project Manager at Crazy Animation Studio
    < $25/hr
    2 - 9
    2011
    India
  • Five Systems Development

    #1 Mobile Development Studio in Ukraine
    Visit website

    Five Systems Development was founded 25 June 2015. Company’s main office is in Vinnytsia, Ukraine Five has development offices in Kyiv and Kharkiv, Ukraine Five has representative office in Tel-Aviv, Israel Company has 50+ employees where only 10% are administrative stuff Five has its own product li ... read more about Five Systems Development

    "Great professional team who are really high-level experts"
    Yuriy Bondar
    $25 - $49/hr
    50 - 249
    2015
    Ukraine
  • Bladeware

    Trusted Software Design & Development company
    Visit website

    Bladeware is an award-winning software Design & Development company that helps many businesses around the world - from small startups who need to build an MVP to mid-sized businesses who has a need in IT services and digital transformation. During the last 5 years being on the market we built and deliv ... read more about Bladeware

    "Roman & the Bladeware team were absolutely incredible. They far exceeded my expectations and delivered incredible designs for the app"
    Corey Kuether, Senior Android Developer at booj
    $50 - $99/hr
    10 - 49
    2018
    United Kingdom
  • SynergyTop

    Driving Synergy Assuring Growth
    Visit website

    SynergyTop is a global software solutions provider that delivers innovation and technology services. We offer our expertise in the areas of Mobile, Product and Application Design and Development, Web Services, Digital Marketing and Quality Analysis. We, at SynergyTop are passionate about technology. This, coupled wi ... read more about SynergyTop

    "The development work done by SynergyTop improved the site’s traffic and reach"
    Samuel McGrew, Founder at Grade Plays
    $25 - $49/hr
    50 - 249
    2014
    United States
  • Keynote Systems

    Mobile app Testing & Monitoring Solutions
    Visit website

    Keynote by Dynatrace is the leader in helping some of the world’s best known brands make every mobile interaction count.Keynote provides powerful cloud-based solutions for mobile app quality and performance, enabling companies to reduce complexity, speed time to market, integrate with agile development, and deliv ... read more about Keynote Systems

    < $25/hr
    250 - 999
    1995
    United States
  • DataArt

    Enterprise Software Development Company
    Visit website

    Founded in 1997, DataArt is a global software engineering firm that has continually evolved to become the trusted technology partner of market leaders. Led by our people-first principle, our world-class team designs and engineers data-driven, cloud-native solutions to create immediate and enduring business value. Throu ... read more about DataArt

    "Long-lasting technology partnership with DataArt"
    Justin Baker, Senior Director of Engineering at Apple Leisure Group
    $50 - $99/hr
    1,000 - 9,999
    1997
    United States
  • SmartexLab

    Full-service results-driven software development
    Visit website

    SmartexLab is a custom software development company specializing in web and mobile development and end-to-end software development for small and mid-size businesses. Since 2014, we have been applying cutting-edge technology and our expert knowledge across multiple domains, with our core focus centered on fintech and ... read more about SmartexLab

    "Great software engineers"
    Jawad Stouli, CTO at Didomi
    $25 - $49/hr
    50 - 249
    2014
    Belarus
  • Rorko

    "Results by Technology"
    Visit website

    Rorko is a Business Technology consulting firm which provides best-in-class IT services & solutions on the Web, Mobility, and Cloud-based services. Combining the diversity of expertise in business strategy, technology, usability and design.Rorko provides solutions to multiple companies from startups to enterpr ... read more about Rorko

    "G Ravindra & Co"
    Ravindra Poojary
    $25 - $49/hr
    50 - 249
    2011
    India
  • Altoros Labs

    Software Engineering. Custom Web & Mobile Apps
    Visit website

    Altoros, with headquarters in the United States, operates major development centers in Argentina and Poland. This enables the company to offer competitive rates, align with different time zones, and provide high communication and technological skills, making it a top choice for customers.Take your software products to ... read more about Altoros Labs

    "I'm really impressed"
    Terrill Stehech, Web Developer Specialist at Axway Inc
    $50 - $99/hr
    250 - 999
    2001
    United States
  • Berezha Security Group (BSG)

    Application Security & Penetration Testing
    Visit website

    Berezha Security Group is a cybersecurity consulting firm specializing in all aspects of application security, infrastructure and social engineering penetration testing, cybersecurity consulting, and professional training. Since its founding in 2014, Berezha has delivered over 120 projects for more than 80 clients w ... read more about Berezha Security Group (BSG)

    "Network and social engineering "
    Vitalii Savisko
    $50 - $99/hr
    10 - 49
    2014
    Ukraine
  • SQA Canada

    Software Quality Assurance, On Time, On Budget
    Visit website

    SQA Canada is an independent software testing company in Toronto, Canada. We provide a wide range of software quality assurance (SQA) services, from business solutions testing to software consulting. For all of our projects, we do our finest work to remain the best vendors, delivering high quality solutions and providi ... read more about SQA Canada

    < $25/hr
    50 - 249
    2013
    Canada
  • Polytech Software

    Ukrainian software outsourcing company.
    Visit website

    Polytech Software is a Ukrainian software outsourcing company that sets up and runs world-class software development teams. We have staffed thousands of software engineering positions for top startups, Fortune 500 companies, and well-known brands. Teams of 2 to 150+ engineers (analysts, project managers, ... read more about Polytech Software

    "Polytech has helped us successfully build and roll out multiple commercial software applications"
    Matthew Shipley, General Manager at MoneySoft
    $25 - $49/hr
    250 - 999
    2006
    Ukraine

Can’t find the right partner for your project?

Get a list of best-fit companies handpicked by our experts that match your requirements.

Get a Personalized Shortlist

Frequently Asked Questions

What is software testing? Why is it important?

The process of examining a software product to ensure it performs its intended function and fixes the defects is termed software testing. Software testing helps developers build flawless software solutions free from data vulnerabilities. Performing rigorous software testing can improve software quality, increase user data security, enhance customer satisfaction, reduce bugs, and save money.

What are the benefits of software testing?

The benefits of software testing are identifying bugs, addressing the issues in the development cycle, ensuring the quality and the success of the product, accelerating the development process, securing compliance, reassessing the vulnerabilities, reducing the mitigated risk associated with software projects to enhance software reliability, improving the user experience, saving time and resources.

What are the different software testing methodologies?

The different software testing methodologies adopted by software testing companies are waterfall testing, sequential testing, agile testing, DevOps testing, continuous testing, spiral testing, risk-based testing, model-based testing, behavior-driven testing, and exploratory testing. Each of these testing methodologies leveraged by testing service companies has its own advantages and selecting the method is purely based on the project requirements.

What are the types of software testing?

The types of software testing are unit testing, integration testing, functional testing, non-functional testing (performance, security, compatibility accessibility, reliability, and usability testing), system testing, smoke testing, regression testing, user acceptance testing, exploratory testing, adhoc testing, and complete end-to-end 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 critical system operations, basic usability, and accessibility while checking for error conditions.

The four main Functional Testing categories are as follows:

  1. Unit TestingUnit Testing is a process that concentrates on individual components of the software to ensure that the system operates as expected. It assists software testers in identifying and fixing bugs and defects in the early stages of the development cycle, allowing coders to modify the code as needed.

    Automated as well as manual testing can be conducted for unit testing. Testers can isolate groups of code and perform rigorous testing, which helps to identify unnecessary dependencies between the codes that should be eliminated. One of the most important benefits of unit testing is that it allows programmers to restructure existing codes to ensure the module functions flawlessly.
     
  2. Integration TestingIntegration 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 software modules. Integration testing also covers the impromptu changes made in the software, which might not have been unit tested.

    Integration Testing checks data flow between software components. Two approaches are available - Big Bang or Incremental. It analyzes the interface link between the login and home pages to ensure the user is directed to the software's main page.
     
  3. System TestingSystem testing validates the complete application. 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 involves analyzing the outcome of every input in the system to ensure that the desired outputs are achieved and that users have a positive experience. In addition to validating business requirements, system testing verifies the application's architecture.
  4. Acceptance TestingAcceptance testing, also known as User Acceptance Testing (UAT), is performed to assess whether the system is ready for deployment. Clients or end-users do these tests to ensure the integrity of the application. During software development, there are chances that specific user requirements may not be adequately communicated to the developers. This may result in developing a highly different system from what the user requested.

    Acceptance testing implements the following steps.
  • Analysis of Client Requirements
  • Distinguish Test Scenarios
  • Formulating UAT Test Plans
  • Test Cases
  • Record Results
  • Confirm Objectives

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

2. Non-Functional Testing:

Non-functional testing verifies non-operational aspects of software, such as performance, usability, and reliability. It assesses readiness beyond functional testing.

For example, Non-functional Testing checks the number of people who can simultaneously log in 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:

  • Installation: Installation testing detects and resolves any errors during software installation.
  • Localization: Software testing companies assess the software for it to work according to the culture and setting of the deployment location.
  • Performance: As the name suggests, performance testing is done to warrant the smooth working of the software.
  • Recovery: Software testing companies must ensure that after any sudden crash in the system, it must be easily recoverable. This is analyzed during Recovery Testing.
  • Reliability: Reliability testing checks the extent of the software system to which it can continuously perform specific tasks without hindrance.
  • Security: This parameter defines how software is safeguarded against sudden or deliberate attacks from internal or external sources.
  • Stress: Stress testing studies the limit of the software with an increased workload to which it can operate without lagging.
  • Usability: This ensures the user can learn, operate, and communicate with the system effortlessly.
  • Volume: The software testing service providers maintain the system's capacity to handle massive 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 improve the implemented software testing techniques. Some popular software testing tools are A/B testing software, QA testing software, Beta testing software, etc.

What services do software testing companies offer?

Software testing companies offer end-to-end software performance testing services, which include functional testing, non-functional testing, next-generation testing, DevOps testing, data testing, security testing, compatibility testing, usability testing, integration testing, acceptance testing, sanity testing, and so on. They also do test consulting and specialized testing services customized as per the project. All these testing techniques have different goals and are carried out by the testing service companies to verify whether the software performs as expected and meets the end users' requirements.

Can a software testing company help to improve the performance of my software?

Software testing companies definitely help in improving the performance of your software. Quality assurance and software testing are carried out to maintain the quality of the software, improve development techniques, reduce development time, and reduce development costs. Better quality also assures customer satisfaction, user experiences, scalability, and responsiveness. Testing the software on multiple devices also ensures compliance with the industry standards.

How long does it take for software testing companies to complete testing projects?

Software testing companies take around 4-8 weeks to complete testing projects, depending upon testing algorithms, methodologies and the tester’s experience. This time varies with the coding language used, complexity and type of software, technological tools required, number of tests to run, etc. Identification and removal of issues associated with security, functionalities, platform compatibility, responsiveness, loading speed, run-time errors, etc., can also impact the software testing time.

How to choose a software testing services company?

You must consider the following crucial factors to choose the software testing services company for your software testing project needs;

  • Summarize your software testing project requirements, including purpose, location, technologies & tools needed, whether your project needs automated or manual testing, budget, deadlines, etc.
  • Research on the latest global market trends in software testing solutions.
  • To ensure proper communication throughout the project, you must decide the preferred location for the software testing companies to match your time zone.
  • Refer to the list of software testing companies from renowned listing pages like GoodFirms.
  • For a better selection, filter the list on various parameters like location, services, industry, company size, reviews, and others.
  • Contact the chosen software testing service providers to discuss your detailed requirements, expectations, deadlines, budget, and other preferences.

Compare the shortlisted top software performance testing services companies based on their reviews, ratings, skills, experience, and pricing to choose the software testing experts for your project.

How much does it cost to hire a software tester?

Hiring a software tester might cost you anywhere from USD 7 to USD 40 per hour. The cost of hiring a software tester fluctuates based on factors like the experience and expertise of the tester, testing tools and technologies used, complexities of the software, type of tests required, location of the tester, and employment type.