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List of the Best Software Testing Companies & QA Firms

  • QA Mentor

    CMMI appraised, ISO certified Testing Company
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    QA Mentor is multi-awards winning a CMMI level 3 and ISO-certified leading software testing company founded in 2010 with headquarters in New York, USA. The company excels in delivering superior Software Quality Assurance (QA) with their 30+ QA testing services that are availed by clients like Bosch, Morgan Stanley, Ama ... read more about QA Mentor

    "Reliable QA "
    Dwight Lee, Partner at Division Of/
    < $25/hr
    250 - 999
    2010
    NYC, New York
  • Impact QA services LLC

    Software Testing and Quality Assurance Company
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    ImpactQA is a leading independent software testing services company based in New York, USA. The company is a global provider of full-cycle software testing and consulting services catering to various industries such as Healthcare, Telecom, Media, E-commerce, and banking worldwide. Their premier clients include Panasoni ... read more about Impact QA services LLC

    "Impact QA: A Reliable Partner in Testing Services"
    Henry Darana, QA Manager | Automation Architect at TRAY
    $25 - $49/hr
    250 - 999
    2011
    NYC, New York
  • QualityLogic

    Industry Leading Software Testing Company
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    QualityLogic is a US-based software testing service providing turnkey testing and quality assurance solutions like regression testing, onshore automation testing, website testing services, interoperability testing, and more since 1986. Their talented and experienced QA team has served premium clientele, including HP, A ... read more about QualityLogic

    "Thorough and professional user acceptance testing services for software implementation"
    Jennifer Dunn, Co-Leader at Woligo
    $25 - $49/hr
    50 - 249
    1986
    Boise, Idaho
  • TestMatick offers end-to-end software test services to a diverse clientele. The company is a leading provider of QA testing and holds expertise in more than 20 types of testing services, such as mobile testing, functional testing, automated testing, usability testing, localization testing, and more. 

    "Testmatic helped us in a software QA project which was successful"
    Larry Mattson, Chief Operating Officer at Suite Living Senior care
    NA
    50 - 249
    2009
    NYC, New York
  • a1qa

    Software Testing and Quality Assurance Company
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    Founded in 2003, a1qa is one of the independent software testing and quality assurance (QA) companies. a1qa offers its services for all software types, including any PPAs or custom-developed software. The company has reputed certifications like ISO 9001:2015, PMI-ACP, and PMP certifications, and its premium clients inc ... read more about a1qa

    "Software testing professionals who helped us get ready for HIPAA certification"
    Shoshana Parker, Senior Computational Biologist at SBH Health System
    $25 - $49/hr
    1,000 - 9,999
    2003
    Lakewood, Colorado
  • SHIFT ASIA

    Quality and Security Assurance Company in HCMC
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    SHIFT ASIA is a leading software testing and quality assurance company based in Vietnam and was founded in 2016. With their team of QA experts and professional full-stack engineers, they specialize in offering a wide range of QA services, including ad-hoc testing, vulnerability testing, GUI testing, etc.

    "Good support for UT & IT milestone"
    Thanh Tam, Quality Control Leader at GUIDE COMPANY LIMITED
    < $25/hr
    50 - 249
    2016
    Los Angeles, California
  • HikeQA is one of the top USA-based independent software testing services companies. This QA agency provides exceptional testing services, including Functional testing, performance testing, App testing, and Web testing. They provide 24/7 customer support and claim a money-back guarantee to dissatisfied clients.   ... read more about hikeQA

    "Genetic Testing"
    Kate Ryder, CEO at Maven Clinic
    < $25/hr
    10 - 49
    2020
    Atlanta, Georgia
  • Packetlabs

    Penetration Testing Beyond the Checkbox
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    Packetlabs is a Canadian expert-level penetration testing services company. The company is a member of the Entrepreneur Organization, GIAC, and Retail Council of Canada. Their services include infrastructure penetration testing, Cloud penetration testing, application security testing, cybersecurity assessment, etc.

    "Packetlabs always exceeded my expectations for the services they’ve delivered"
    Anonymous, VP Integrated Technology Services at
    $200 - $300/hr
    10 - 49
    2011
    Acton, California
  • Testlio

    Amazing customer experiences start here
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    Testlio is the leader in managed app testing. With robust client services, a global network of expert testers, and a comprehensive software platform, we provide a suite of burstable, flexible, and on-demand testing solutions: end-to-end, usability, localization, functional, payments, and more. When apps must perfo ... read more about Testlio

    "They have cost effective means of testing "
    Anonymous
    $25 - $49/hr
    50 - 249
    2012
    Austin, Texas
  • XBOSoft

    Software Quality Improvement
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    XBOSoft is a top-rated software testing and QA company. Their mission is to deliver trust while providing software quality assurance and testing beyond the expected standard. What they test, includes web application testing, API testing and mobile application testing in various industries ranging from healthc ... read more about XBOSoft

    "Xbosoft's software testing services are exceptional!"
    Jessica Bernstein, CEO and Founder of Universally Found at Universally Found
    NA
    50 - 249
    Reston, Virginia
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  • 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 ... read more about LambdaTest

    "Reliable tool for automating the functional testing."
    Damini Passi
    < $25/hr
    50 - 249
    2017
    San Francisco, California
  • 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 ... read more about UTOR - QA services and Software Testing company

    "Very friendly, skilled, capable and experienced QA team able to collaborate seamlessly."
    Dom Huxley, Managing Director at Huxley
    $25 - $49/hr
    10 - 49
    2016
    Tallinn, Estonia
  • Next Big Technology(NBT)

    Best Web & Mobile App Development Company
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    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 ... read more about Next Big Technology(NBT)

    "Ecommerce WordPress Website Design and Development"
    Ben N, Coordinator at Ilovenatural
    < $25/hr
    50 - 249
    2009
    Jaipur, India
  • Qualimatrix is a Specialist QA & Software Testing Company assisting organisations globally to deliver high quality Software Applications.We solve quality problems by reducing risks, maximizing efficiency and strengthening your organization.We work towards achieving the best results for our clients.Quality over Quan ... read more about Qualimatrix Technologies

    "Application Testing for Software Firm"
    Vera Kimmi, Partner Managing Director at Forte Group at Forte Group
    < $25/hr
    50 - 249
    Bengaluru, India
  • Appsierra is a world-class company providing viable and budget-friendly services to clients since 2015. Having an experienced team of best recruits under one roof, it has proven experience to meet commitments and deliver results. Need a website? Or an app for your business? We have got it all covered from design to del ... read more about AppSierra

    "They had an excellent workflow of ideas and suggestions ."
    Gaddiel Gitau, Director of IT at at Oasis It solutions
    $25 - $49/hr
    50 - 249
    2015
    Noida, India
  • QAlified

    Building Quality | QA and Software Testing Company
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    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.

    "A Comprehensive Review of QAlified's Software Testing Partnership with Sprout"
    Jeremy Huffman, Director of Technology at Sprout
    $25 - $49/hr
    10 - 49
    1992
    Montevideo, Uruguay
  • KiwiQA Services

    One Click Away from finding experience QA agency
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    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 ... read more about KiwiQA Services

    "kiwiQA Review"
    Miguel Miranda
    < $25/hr
    50 - 249
    2009
    Sydney, Australia
  • Successive Digital is a next-gen technology consulting services company purpose-built for the speed of modern business. We transform businesses across all touchpoints of customer experience with our digital transformation solutions.We strive to emerge as the long-term center of innovation and excellence partner fo ... read more about Successive Digital

    "We appreciate their efforts and dedication. They were truly commendable all through."
    Sahil Singh, Project Manager at FutureGen Lab
    $25 - $49/hr
    250 - 999
    2012
    Noida, India
  • QAwerk is a software testing agency whose expertise is acknowledged by leading tech media like The Next Web and Tech Crunch.  Since 2015, we've tested over 300 projects, helping businesses across North America, Europe, and Africa gain the world's recognition and users' love. We achieve this by co ... read more about QAwerk

    "Proactive and helpfull"
    Pablo Alba Chao, CTO at Kaleidos
    $25 - $49/hr
    10 - 49
    2015
    Kyiv, Ukraine
  • 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 field

    "Salesforce QA Automation"
    Nihar Sharma, CEO at NSIQ INFOTECH PVT LTD
    $25 - $49/hr
    10 - 49
    2014
    Ahmedabad, India
  • Inevitable Infotech is the best software testing company in India, serving as your trusted partner for top-tier software testing solutions. We are a leading QA company certified in ISO/IEC 27002, excelling in providing customized software testing services for our clients. Established in 2019, Inevitable Infotech has ... read more about Inevitable Infotech Pvt. Ltd.

    "Exceptional QA Staff Augmentation Services By Inevitable Infotech"
    Gurupritsingh Saini, CEO at AppAspect Technologies Pvt. Ltd.
    < $25/hr
    50 - 249
    2019
    Ahmedabad, India
  • PFLB

    Performance Testing Company
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    PFLB specializes in performance testing and performance engineering services. We help companies 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 around launching apps in production. ... read more about PFLB

    "PFLB helped us in a software QA project which was successful"
    Cassandra Missan, Associate Attorney at Lee Injury Law, LLC at Lee Injury Law, LLC
    $50 - $99/hr
    250 - 999
    2008
    Mountain View, California
  • Zamratech

    Your Gateway to Tech Excellence
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    We offers a comprehensive suite of digital services. From web design and development to mobile app development, software development, and cross-platform app development, we cover all your needs. Our expertise extends to game development. We also provide managed cloud hosting, software, and mobile app maintenance, white ... read more about Zamratech

    "They're very timely at responding to messages, urgent requests, and phone calls"
    Chelsea Huber, E-commerce and Digital Marketing Director at Assembly Supplies Co at Assembly Supplies Co
    $25 - $49/hr
    50 - 249
    2015
    Cincinnati, Ohio
  • Aalpha Information Systems is the global pioneer in providing IT consulting and bespoke software development & web development solutions. We provide custom development solutions across Software Development, Mobile Phone Application Development, Responsive Web Design, and Web App Development Services.

    "They are technical and know how to make it work"
    Henry Cheung, Director | Senior Recruitment Specialist at MatchTalent
    < $25/hr
    50 - 249
    2008
    Atlanta, Georgia
  • DeviQA

    Our Quality - Your Efficiency
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    DeviQA is one of the global leaders in the Quality Assurance and Testing market since 2010. We are the finalist of the Software Testing Award in the nomination "Best Test Automation Project – Functional.". Twelve judges choose a few finalists among hundreds of participants around the globe. Our offer ... read more about DeviQA

    " Excellent automated testing Service"
    Alex Mao, Castrol at EVHC Global Project Manager
    $25 - $49/hr
    50 - 249
    2010
    Warsaw, Poland
  • Zappletech

    First-class Automation Testing Agency
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    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, providing q ... read more about Zappletech

    "Thanks to the testers and regular feedback. We were able to release it on time."
    Hal Homer, Project Manager at Bank Vision
    $25 - $49/hr
    10 - 49
    2015
    Krakow, Poland
  • SimbirSoft

    We create world class software products & services
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    SimbirSoft is a global IT outsourcing service provider. We offer world-class custom software development services and complex technical solutions: high-load products, software for industry, banking and finance, medicine, retail, and many other industries. Since 2001, we have implemented 1190+ projects ra ... read more about SimbirSoft

    "New Rosbank website"
    Виталий Мазуревич
    $50 - $99/hr
    1,000 - 9,999
    2001
    Uljanovsk, Russia
  • QATestLab

    Manual and Automated testing
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    QATestLab is an international QA and testing provider with headquarters in Cyprus and R&D centers in France, Poland, Cyprus, and Ukraine. We have 18+ years of experience delivering high-quality testing services for our partners working in such business domains as Software Development, Gaming, Business Solutions, E- ... read more about QATestLab

    "QATestLab provided us with valuable assistance that benefited our software significantly."
    Vitalii Drach, Chief Executive Officer at RD2 Crypto Marketing & PR Agency
    < $25/hr
    50 - 249
    2005
    Kyiv, Ukraine
  • 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 ... read more about CodeBright

    "A US-Based IT Partner We Trust"
    Richard Anglin, CEO at telmedx
    NA
    50 - 249
    2015
    Sterling, Virginia
  • SPEC INDIA

    Enterprise Software, Mobility & BI Solutions
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    SPEC INDIA is an ISO/IEC 27001:2013 company specializing in custom software development, web & mobile app development, BI and analytics solutions, automation & security testing, legacy software migration, product engineering, and IoT solutions. SPEC INDIA has a team of 300+ consultants committed to delivering q ... read more about SPEC INDIA

    "Dedicated Offshore Team for Product Development!!"
    Johan Scott, CTO at Redeal STHLM
    < $25/hr
    250 - 999
    1987
    Ahmedabad, India
  • Abstracta

    Test Smarter, Deliver Faster, Work Better
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    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 Abstracta’s ... read more about Abstracta

    "Good service"
    Rodrigue Mouawad
    $50 - $99/hr
    50 - 249
    2008
    San Francisco, California
  • Cyber Infrastructure Inc.

    On mission to Enhance lives of Billions of users!
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    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 ... read more about Cyber Infrastructure Inc.

    "Great service"
    Nicholas Martin, Director at Market Dojo Ltd.
    < $25/hr
    1,000 - 9,999
    2003
    San Jose, California
  • At Distinct Cloud Labs, we are a dynamic and innovative software development agency, specializing in crafting exceptional mobile apps and web applications powered by cutting-edge cloud technology. Our mission is to empower businesses with digital solutions that drive success, enhance user experiences, and accelerate gr ... read more about Distinct Cloud Labs

    "Distinct Cloud Labs supported us with a dedicated testing team"
    Alex Bessonov, Founder at BitClave
    $25 - $49/hr
    10 - 49
    Pune, India
  • Gearheart

    Web and mobile app development company
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    We are a professional team of full-stack developers dedicated to delivering functional web solutions to startups and mature companies that exceed our client's expectations. WHY US  ✔️ Our team has been building web applications for 12 years and during this time we have built reliable partnerships wit ... read more about Gearheart

    "For 10 years of our cooperation, we only regret that we did not meet earlier."
    Lainy Jahnke, Chief Operating Officer at at Growth Capital Services
    $50 - $99/hr
    10 - 49
    2012
    Kyiv, Ukraine
  • Redwerk

    Software Development Agency
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    Redwerk is a software development agency recognized by Microsoft Partner Network as a tech leader showing consistent capability and commitment. Our high expertise is also acknowledged by leading tech listings like Clutch, GoodFirms, DesignRush, SoftwareWorld, and ITFirms. Since 2005, we've helped over 170 busine ... read more about Redwerk

    "Android Development Services"
    Camilla Bonanni, Founder at Supernova
    $50 - $99/hr
    50 - 249
    2005
    Kyiv, Ukraine
  • BetterQA

    Delivering Top Quality Always
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    WHO WE ARE We are BetterQA, a “software testing only” company founded in 2018 in Cluj-Napoca, Romania.  Since then, we provide exceptional services and experiences to every one of our clients. We believe in building lasting relationships with our team members, partners, and clients.  WHAT ... read more about BetterQA

    "Great Testing Service Provider With Awesome Team"
    Emily Caslin, Manager at Lefty
    NA
    10 - 49
    2018
    Cluj-Napoca, Romania
  • TECUNIQUE PRIVATE LIMITED

    Elevate Your Business with TECUNIQUE's Tailored
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    TECUNIQUE, a distinguished Indian software services company with over 14 years of industry experience, is a growing leader in the realm of offshore software development and quality assurance services. Our unwavering commitment to excellence has positioned us as a trusted partner for start-ups, software development comp ... read more about TECUNIQUE PRIVATE LIMITED

    "A true partner"
    Guillaume Brejaud, COO at oppScience at OPPSCIENCE
    NA
    50 - 249
    2010
    Vadodara, India
  • QA Madness is an outsourcing QA company providing a full scope of software testing services.  Covering manual and automated testing for mobile and web applications, QA engineers ensure that the software functions according to technical specifications, meets business requirements, and aligns with user preference ... read more about QA Madness

    "Amazing, would recommend! 10/10!"
    Dallas de Marr, Product Manager at Appfire
    < $25/hr
    50 - 249
    2013
    Warsaw, Poland
  • Captus Technologies

    Hire the Best Web and Mobile App Developers
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    Founded in 2012 and based in the United States, Captus stands as a premier entity specializing in providing web, mobile and software development. Renowned for curating the most talented IT industry professionals, we deliver seasoned expertise spanning over a decade in their respective domains. Our peerless de ... read more about Captus Technologies

    "Professional Company for Web Development Services"
    Jeff Harvey, Founder at Gamify11
    $25 - $49/hr
    10 - 49
    2012
    Ahmedabad, India
  • Binmile Technologies

    Product Engineering & Software Development Company
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    Binmile offers unmatched QA and software testing services that help businesses bank on their product quality. Their testing services include automation testing, functional testing, performance testing, security testing, usability testing, compatibility testing, and localization testing. Plus, they test web, mobile, and ... read more about Binmile Technologies

    "Excellent Service and Support on Website Maintenance"
    Siddhesh Desai, Director, Marketing and Communications at Acuity Knowledge Partners
    $50 - $99/hr
    250 - 999
    2017
    Claymont, Delaware
  • ALPHANOVA

    EVERYTHING THAT IS CONCEIVED CAN BE REALIZED
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    Established in 2019, AlphaNova specializes in multi-platform game development: iOS, Android, Windows, Mac OS, VR/AR, consoles. Team of 50+ experts committed to innovative technologies for superior gaming experiences. Services Offered: Development for iOS & Android QA testing for applications and gam ... read more about ALPHANOVA

    "Perfect Work"
    Dmytro Gavryshchyshyn, Lead Business Analyst at Intellias
    $25 - $49/hr
    10 - 49
    2019
    Dnipropetrovsk, Ukraine
  • Newwave Solutions Jsc

    Top 10 Software & Blockchain Company in Vietnam
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    Newwave Solutions ranked among the top 10 software companies in Vietnam and is recognized globally as one of the top 100 sustained software companies. With 12 years of experience and a dedicated team of over 300 members, we're committed to excellence. WHAT WE'VE ACHIEVED: 🏆 Vietnam's Top 10 ICT Com ... read more about Newwave Solutions Jsc

    "Everything is always on plan. The communication is great and excellent"
    Akira Masaru, Chief Executive Officer at N&V Bridge Group
    < $25/hr
    250 - 999
    2011
    Cau Giay, Vietnam
  • BugRaptors

    Leaders in Software Testing & QA Services
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    BugRaptors – Improve Your Chances of Success with QA Solutions   Discover excellence in QA software testing services with BugRaptors, a renowned industry leader since 2016. Armed with ISO 9001:2018 and ISO 27001 certifications, our innovative approach to quality engineering solutions propels digital ... read more about BugRaptors

    "Greate team providing excellent QA/Testing services and development assistance along with potential improvements."
    Mohit Gupta, Technical Product Manager | Machine Learning Engineer at Timble Technologies Pvt Ltd
    < $25/hr
    250 - 999
    2016
    Mohali, India
  • White Label Fox

    On-Demand Web & App Development
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    White Label Fox is a leading On demand app development company. We help an entrepreneur to develop their business application, and we also offer peer-to-peer solutions for developing software. We are experts in developing ready-to-use Uber for x script for a business startup like taxi apps, food delivery, grocery deliv ... read more about White Label Fox

    "Job well done"
    babazani Mkhize, Manager at Aero Touch Down
    NA
    10 - 49
    2016
    Rajkot, India
  • Ubertesters

    beta testers management, crowdsourced testing
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    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.

    "Great for beta-people hiring"
    Jane Brohenzon, QA Team Leader at Shelor
    $25 - $49/hr
    50 - 249
    2012
    New Jersey, New Jersey
  • Appinventiv is a software product and mobile app development company that offers innovative digital engineering solutions to startups and Fortune 500 companies. With a team of 800+ skilled and agile professionals, we build digital products that help you achieve your goals. We are a global mobile app development industr ... read more about Appinventiv Technologies

    "Regression testing of an iOS application"
    Bryan colson, Corporate Travel Manager at at Seagen
    $25 - $49/hr
    1,000 - 9,999
    2015
    Noida, India
  • Solvd, Inc.

    Global Software Engineering Company
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    Solvd, Inc. is a global software engineering company with over 800 engineers located across 8 countries in North America, South America and Europe. Solvd, Inc. is headquartered in Roseville, CA (USA), and has development centers in USA, Argentina, Brazil, Mexico, Poland and a sales office in Hungary. Solvd, Inc. servic ... read more about Solvd, Inc.

    "Outstanding Quality Assurance Services for an IT Digital Marketing Agency"
    Mikita Cherkasau, Co-Founder and Marketing Consultant at Your Extra Marketer
    $25 - $49/hr
    250 - 999
    2011
    Walnut Creek, California

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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.

Can you recommend some of the highly experienced Software Testing Outsourcing companies on GoodFirms?

Goodfirms has listed 4000+ Software Testing Companies, based on reviews & ratings, here are some highly experienced Software Testing Outsourcing companies:

  • QualityLogic - <25 years of experiences (5/5 Ratings)
  • TestMatick - < 20 years of experience (5/5 Ratings)
  • Crestech Software Systems Pvt. Ltd - <15 years of experiences (5/5 Ratings)
  • Vervali Systems Pvt Ltd - <10 years of experience (4.8/5 Ratings)
  • Civenty - <5 years of experiences (5/5 Ratings)

What is the Software Testing Life Cycle (SDLC)? Explain the Goals and activities of each stage.

The Software Testing Life Cycle (STLC) is a structured framework for ensuring the quality and functionality of software applications that involve a series of well-defined phases that work together to identify and fix bugs before the software is released to users. Here's a breakdown of the different phases involved:

  1. Requirement Analysis: 
    Goal: Understand the software's functionalities, features, and non-functional requirements.
    Activities: Analyze documents like user stories, technical specifications, and system requirements. Identify potential areas for testing based on these requirements.
     
  2. Test Planning:
    Goal: Define the scope, resources, and schedule for testing activities.
    Activities: Create a test plan outlining the testing strategy, test types, tools, and resources needed. Estimate the time and effort required for each testing phase.
     
  3. Test Designing:
    Goal: Develop detailed test cases to be executed during testing.
    Activities: Design test cases based on the identified requirements and functionalities. Define the expected results for each test case.
     
  4. Test Environment Setup:
    Goal: Configure a testing environment that replicates the production environment.
    Activities: Install the software application on the testing environment - Configure hardware, software, and network settings.
     
  5. Test Execution:
    Goal: Execute the designed test cases against the software application.
    Activities: Run the test cases manually or using automated testing tools. Record the results and compare them with the expected outcomes.
     
  6. Test Closure:
    Goal: Evaluate the overall testing process and identify any remaining issues.
    Activities: Analyze the test results and report any bugs or defects found. Prepare a test summary report documenting the testing activities and findings.

Which Testing companies have the lowest hourly rates?

As per Goodfirms research and methodology, here are some of the lowest hourly rates of Testing Companies:

  • QualityLogic - $25 - $49/hr (5/5 Ratings, 5 Reviews)
  • SHIFT ASIA - < $25/hr (4.4/5 Ratings, 6 Reviews)
  • hikeQA - < $25/hr (5/5 Ratings, 5 Reviews)
  • KiwiQA Services - < $25/hr (4.8/5 Ratings, 13 Reviews)
     

Who are the best-rated Testing companies on GoodFirms?

The best-rated Software Development companies on GoodFirms, based on verified client reviews and ratings, include:

  • Next Big Technology(NBT) - (5/5 Ratings, 100 Reviews)
  • Aalpha Information Systems India Pvt. Ltd - (4.9/5 Reviews, 62 Reviews)
  • LambdaTest - (4.6/5 Ratings, 46 Reviews)
  • UTOR - QA services and Software Testing company - (4.9/5 Ratings, 22 Reviews)
  • AppSierra - (5/5 Ratings, 20 Reviews)