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List of the Best Software Testing Service Companies

  • Qualitrix Technologies Pvt Ltd

    Let's deliver a bestseller app!
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    Qualitrix Technologies (www.qualitrix.com) provides a complete portfolio of software quality engineering and application testing services through a flexible combination of its on-shore, off-shore and crowd sourced workforce. We integrate innovative technology solutions and user-centric testing to help you deliver a bes ... read more about Qualitrix Technologies Pvt Ltd

    < $25/hr
    50 - 249
    2015
    India, United States
  • Arcalís

    Best mobile app development company
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    At the heart of Arcalís is a team of dreamers and doers who are laser-focused on delivering value to clients. We have a collective can-do attitude, the right skills to conquer challenges and the integrity to do the right thing always.

    "Arcalis has a great team of developers who delivered our project with utmost professionalism and amazing value for money."
    Amin Khan, Business Development Manager at Unilever
    < $25/hr
    2 - 9
    United Kingdom
  • AppQuarterz

    Independent Software Testing & QA Agency
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    Appquarterz is a Software Testing and QA Company. We have completed over 200+ Projects and helped SMEs, Startups as well as enterprise companies in delivering quality engineering, AI Test Automation, Performance Engineering and Complete Continuous and Automated Test Services Performed throughout the Software Developmen ... read more about AppQuarterz

    < $25/hr
    10 - 49
    2019
    India
  • With over 16 years of experience in the IT industry, Orient Software makes sure that all our services are top-notch and can fulfill all requirements - from web app and mobile app development, to AI, IoT, Machine Learning, and Data Science - we prioritize both quality and satisfaction from our global clients. Our succes ... read more about Orient Software Development Corp.

    $25 - $49/hr
    250 - 999
    2005
    Vietnam
  • PentesterSpace

    Be our part, Be safe
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    PentesterSpace is a group of white-hat hackers & security experts who help companies to harden their security. We work together to provide a hack-proof security to our clients that will keep them safe from malicious hackers. We provide advanced techniques to manage cyber security risks, access control, network and ... read more about PentesterSpace

    NA
    10 - 49
    2019
    Bangladesh
  • Erminesoft

    Mobile App Development Company
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    Erminesoft delivers Mobile solutions for startups and businesses. We have proven expertise in native mobile development, UI/UX design and web projects. We have dedicated team that comprises of creative designers and talented mobile app developers available, to extend your in-house development.

    "Erminesoft delivers exactly what I want"
    HuiGuo Liu, Co Founder at Partyzhere Corporation
    $25 - $49/hr
    10 - 49
    2012
    United States
  • Abos

    Top mobile application development company | Dubai
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    Abos is a leading global, privately held enterprise ofmobile app development  and internet marketing services. We design, develop, test and deliver software solutions for all small to large sized businesses. We give you the guarantee to take your business to the top. The creative and innovative work we perform is ... read more about Abos

    "Organised and Flexible team "
    ewurood ., Sales Floor Team Member at ewurood
    NA
    10 - 49
    UAE
  • Rudveda Technology

    Technology Meets innovation
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    Founded in 2019 as Rudveda Technology, with a small team of young and vibrant technocrats, having passion for technology & innovation, and with a common dream & vision. We focus on achieving Client Satisfaction; concentrate on Technology Innovations, gaining deep Industry Knowledge and Business Process Expertis ... read more about Rudveda Technology

    < $25/hr
    50 - 249
    2019
    India
  • Digital Order Technology is a leading ERP Consultancy and implementation company in India. “Our core expertise is to identify missing links in your existing IT setup and integrate them in a way which comes out an innovative idea for the client’s business to boost operational efficiency, employee productivit ... read more about Digital Order Technology Pvt. Ltd.

    < $25/hr
    2 - 9
    2016
    India
  • Mobileappz

    Beautiful Apps. Engineered Well.
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    MobileAppz is a pure play mobile app development company, which provides custom Mobile Application Development Services for platforms including iPhone, Android, Windows Phone and web apps.Our experienced Mobile App Development team ensures your app ideas are turned into apps that ... read more about Mobileappz

    < $25/hr
    10 - 49
    2010
    India
  • Solid Software Solutions

    Bespoke Software Development that creates Value!
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    Our Customers range from early stage companies to global enterprises in Travel & Leisure, eCommerce and Fintech sectors. Solid's success relies on team of experienced software engineers, with great industry and academic experience, building new solutions with passion. We are software craftsm ... read more about Solid Software Solutions

    "Fantastic Company"
    Adam McIntosh, Product Manager at Leisure Pass Group
    $25 - $49/hr
    10 - 49
    2011
    Poland
  • QUBEBIZ

    We Believe in Digitalization
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    We are IT Service-Providing Company We Provide All Kind of IT Services Like Mobile Application Design and Development, Website Design and Development With Modern Design Concepts Develop Softwares and Develop ERP's  for All Kind of Industries  and Give Solution of All Kind of Industries in all Over the Glo ... read more about QUBEBIZ

    $25 - $49/hr
    10 - 49
    2018
    India
  • Black Pepper Software

    your software, your way.
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    Black Pepper Software is a leading technology and engineering consultancy. We specialise in research-led, human-centred custom software development. We build world-class software for world-leading organisations. We are award-winning, trusted and recommended by our clients. We work collaboratively and with transparen ... read more about Black Pepper Software

    NA
    10 - 49
    United Kingdom
  • Glawen

    We help in Web and Mobile App Development
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    WebSite and Mobile App Development

    < $25/hr
    2 - 9
    2020
    India
  • VP Techno Labs®

    Protect What matters most to your business
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    The Company Established in Y-2019. The Company is committed to fathom critical cybersecurity challenges that were emerge since a long time. The Issue we're attempting to unravel is complicated cyber dangers that influences Commerce customer's revenue, damage notoriety. We are going ensure it by guarding them by ... read more about VP Techno Labs®

    $50 - $99/hr
    10 - 49
    2019
    India
  • Alien Web

    Customised software & Apps Development
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    Alienweb develops customized websites and software and mobile application using innovative ideas and technology. We are capable to build high performing software and mobile applications like Website Design and Development, Courier Management Software, Multi-Vendor Marketplace Software, Financial Management Software, On ... read more about Alien Web

    NA
    10 - 49
    2006
    India
  • RareDevs is an end-to-end IT solutions and digital marketing services provider. We are based in Ahmedabad and we lend support to our clients in Web Design & Development, Mobile App Development, Social Media Marketing, Branding, SEO, Content Marketing, and Graphic Designing. Our aim is to help our clients grow and s ... read more about RareDevs Innovations LLP

    "Raredevs was great for us"
    Tillman Andy, Founder & CEO at Arkofus.com
    < $25/hr
    10 - 49
    India
  • TestCrew

    software testing
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    TestCrew is Saudi based company specialized in delivering software testing services for organizations.

    < $25/hr
    10 - 49
    Saudi Arabia
  • We started with a mission to build up a great creativity in field of Digital , Science & Finance domain. Softtests is a crowd sourcing platform to help organizations to save costs and still get the quality deliverables. Hosting a big QA team is no longer a necessity. Just bank on Softtests and it will help you loca ... read more about SoftTests - A Crowd Sourced Software Testing Platform

    < $25/hr
    2 - 9
    2018
    India
  • 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

    "LambdaTest’s Smart Testing helped us identify Visual Regression bugs."
    Artyom Korolev
    < $25/hr
    50 - 249
    2017
    United States
  • 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)

    "Most cooperative staff ever"
    Kshitij Goswami, Chief Operating Officer at CaptIn Fintech Pvt. Ltd
    < $25/hr
    50 - 249
    2009
    India, Australia
  • 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

    "Highly professional and reliable team to work with. They delivered "
    Mingle Kims, Project Delivery Manager at Mingle Connections Ltd
    $25 - $49/hr
    50 - 249
    2015
    India
  • 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.

    "We cherish our partnership and look forward to working with them."
    Victoria White, Director of Conversation Design at University of Southern California
    < $25/hr
    50 - 249
    2008
    India, Israel
  • DeviQA is one of the global leaders in Quality Assurance and the Testing market for over 10 years. 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. Ou ... read more about DeviQA

    " Excellent automated testing Service"
    Alex Mao, Castrol at EVHC Global Project Manager
    $25 - $49/hr
    50 - 249
    2010
    Poland, United States
  • 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, providi ... read more about Zappletech

    "Zapple helped us test our web banking app. Everything was great"
    Adam Sayers
    $25 - $49/hr
    10 - 49
    2015
    Poland, Ireland
  • 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 more than 900 projects r ... read more about SimbirSoft

    "The whole experience was very good, and I’m looking forward to our future cooperation!"
    Lev Bein, IT Analyst at LB Internet Solutions
    $50 - $99/hr
    1,000 - 9,999
    2001
    Russia
  • 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 & Analytics Solutions, Automation & Security Testing, Legacy Software Migration, Product Engineering, and IoT Solutions. SPEC INDIA has a team of 300+ Consultants, who are committed ... read more about SPEC INDIA

    "Excellent Tech Partnership with SPEC India. Smooth & transparent working experience!"
    George Oluoch, CEO at KM Serve
    < $25/hr
    250 - 999
    1987
    India, United States
  • 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

    "Development of a Visual Configurator for our lighting manufacturing company"
    George Burlow, Founder at Plant Lighting
    NA
    50 - 249
    2015
    United States
  • 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.

    "A good partner for webdevelopment and appdevlopment projects"
    Hendrik Schmidt
    < $25/hr
    1,000 - 9,999
    2003
    United States
  • 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

    "It is a hardworking development company that went out of their way to meet our needs."
    Eunice Chendjou, COO at OpenTeams
    $50 - $99/hr
    50 - 249
    2005
    Ukraine
  • 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. Our Mission – We strive to emerge as the long-term center of innovat ... read more about Successive Digital

    "Grocery Delivery App Development for Drivers"
    Cathy Cottrell, Senior Operations Project Manager at Locologic
    $25 - $49/hr
    250 - 999
    2012
    India
  • IOTTIVE PVT LTD

    LET'S CONNECT THE THINGS TOGETHER
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    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 ... read more about IOTTIVE PVT LTD

    "Excellent Service in technical background and fast fast response in demanding"
    Alvin Li
    < $25/hr
    10 - 49
    2016
    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
    United States
  • Appinventiv is a product development company that offers innovative new-age digital engineering solutions to startups and Fortune 500 companies. With a skilled and agile workforce of 800+ professionals, we build digital products that scale your vision to unparalleled heights of success. Appinventiv - mobile app develop ... 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
    India, United States
  • Solvd, Inc.

    Get things Solvd. | Software Development & QA
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    Solvd, Inc. is a global QA and software engineering company with 11+ years in business. The custom software development company has headquarters in the USA, 7 development centers in Ukraine, Poland, Georgia, Argentina, Brazil, and Mexico, and a sales office in Hungary. The growing team of 600+ professionals deliver ... read more about Solvd, Inc.

    "Good firm to work with"
    Allen Chen, Co-founder & CEO at at Fitbod
    $25 - $49/hr
    250 - 999
    2011
    United States
  • Savarian.tech

    Get Your Software Testing Done with Savarian.tech
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    Savarian is a progressive, experienced team that offers flexible terms and affordable software testing services of any kind and purpose for clients worldwide. We are flexible in cooperation with clients and can set up teams based on your business needs and the types of testing you require: from regression to us ... read more about Savarian.tech

    "Savarian.tech supported us with a dedicated testing team"
    Nick Semenov, Founder at REYME
    $25 - $49/hr
    10 - 49
    2019
    UAE
  • Exoft is a software development company that provides solutions to various business needs. After our first meeting in 2013, our team of skilled IT experts has built more than a hundred software systems regardless of their types and complexity. Fortunately, our numerous success stories speak for themselves.  Sin ... read more about Exoft

    "Professional, Solid Software Development Company With Strong Processes and Friendly Staff"
    Colin Stone, CTO & Product Architect at ANALEC
    $25 - $49/hr
    50 - 249
    2013
    Ukraine
  • Algoworks

    Enterprise Mobile Apps Development Company in USA
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    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 ... read more about Algoworks

    "Excellent, Quality work. Highly appreciated."
    Mudit Aggarwal, Chief Operating Officer at at Steady Rabbit
    < $25/hr
    250 - 999
    2006
    India, United States
  • Relevant Software

    Web&Mobile Apps Development | Dedicated Engineers
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    Relevant is an international software development company that designs, builds and delivers products of world-class standard for Fortune 500 companies and promising startups. We provide software development teams made up of the best engineers from around the world, benefiting globalization and diversity.  More ... read more about Relevant Software

    "Good experience augmenting our team with a talented full stack developer"
    Maximilian Seifert, Co-Founder & CTO at Cosuno
    $25 - $49/hr
    50 - 249
    2013
    Poland, Ukraine
  • Mindfire Solutions is a 22+ years old Software development & IT services company. We specialize in offering customized technological and digital solutions to solve our client’s mission-critical issues. We cater to our client's digital needs with an integrated portfolio of services and aim to develop diffe ... read more about Mindfire Solutions

    "Great! High integrity firm that always delivers on its promises. "
    Paul Roth , Founder at Advisory Selling
    $25 - $49/hr
    250 - 999
    1999
    India
  • Aryavrat Infotech Inc.

    23yrs Web / Android / iOS App. Dev. Experts in US
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    Aryavrat Infotech Inc. is one of the reputed IT Solutions companies in US with a prime focus in the field of Software Development Services. We have an experienced, innovative and dynamic team of experts with a focus to provide software development outsourcing and offshore software services for individuals, small- and m ... read more about Aryavrat Infotech Inc.

    "Healthcare Mobile App Development"
    Elena Ilyuk
    < $25/hr
    50 - 249
    2009
    United States, India
  • Appiqo Technologies

    Top Rated Mobile & Web App Development Company
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    Appiqo Technologies is a global provider in the mobile app industry.  What makes us unique when compared with other top mobile app development companies in India? Our Ability to handle a project completely - right from the app idea to developing a revolutionary mobile app solution. With a vision to be the t ... read more about Appiqo Technologies

    "Amazing work"
    Himanshu Sharma, Senior Test Designer - NFT at RBS
    < $25/hr
    50 - 249
    2014
    India, Iran
  • Testvox

    Software Testing Service Company
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    Testvox was founded with the goal of creating a venue that offers full software testing services. Since 2017, we've evolved from a tiny startup to a team of highly skilled engineers dedicated to achieving our objectives. We have successfully completed projects with national and international clients in India, the U ... read more about Testvox

    "Excellent in terms of quality"
    Manjunath M, Founder at Storylens.io
    < $25/hr
    10 - 49
    2017
    UAE
  • 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.

    "Excellent Software testing services"
    Pankaj Singh, Project Manager at Sm Technomine
    < $25/hr
    50 - 249
    India
  • XB Software

    Custom Software Development Company
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    XB Software is a full-cycle development company that has many years of expertise in building custom web and mobile solutions. We have a strong and dedicated team of IT professionals engaged in IT Consulting, Web & Mobile App Development, Business Analysis, UX/UI Design, as well as QA and Software Testing. We o ... read more about XB Software

    "High-level cooperation with 100% connection. Reliable development partner. The assigned tasks have been solved."
    Ivan Berg
    $25 - $49/hr
    50 - 249
    2008
    United States, Poland
  • 247 Labs

    Top Notch Developers To Deliver Excellence & Value
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    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 ... read more about 247 Labs

    "UX App design"
    Joshua Folkema
    $100 - $149/hr
    50 - 249
    2013
    Canada
  • Forte Group

    Your full-spectrum software delivery partner
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    Forte Group is a full-spectrum software solutions and managed services resource for businesses seeking exceptional engineering talent and extraordinary software. We work with IT enterprises, business leaders, and technology companies to accelerate and evolve applications that consistently achieve valuable business outc ... read more about Forte Group

    "Great company to work for"
    Mariia Ostafiichuk
    $50 - $99/hr
    250 - 999
    2000
    United States, Ukraine
  • NEX Softsys

    IT Partner for Global Clients
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    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 ... read more about NEX Softsys

    "IT Services"
    Priyal Sanghvi, Project Manager at Capita IT Enterprise Services
    $25 - $49/hr
    50 - 249
    2003
    United States
  • A3logics

    IT Consulting and Development Services
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    A3logics has set the industry standard in technology services for 20 years. Since 2003, our reputation and experience providing quality technology services has redefined what the market looks for in innovative solutions and excellence in delivery to transform every client’s business completely.   As ... read more about A3logics

    "Great Working Experience with iOS Development Team"
    Dharmesh Mourya, Application Engineer at at Merce Technologies Pvt Ltd
    $25 - $49/hr
    250 - 999
    2003
    United States, India

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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, it saves a substantial amount for the business in the long run. Deploying faulty software will cost you and 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 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, 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 in 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 active systems.

Which Are the Different Software Testing Methodologies?

Software Testing Methodology is the strategy implemented to deliver a product that meets the client's expectations. The testing methodology defines the objective of the test, its strategies, and its 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, allowing easy testing of each system segment. 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 moderation. 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 with 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 to duplicate the end-users work conditions. The test environment setup 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 full speed. This phase ensures that the testing module's entry criteria are met and that each output is documented appropriately. The tests are repeated sequentially until every bug and system error is 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, and all the test cases are executed deliberately. The test matrices, final test reports, 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 critical 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 as 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 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.

Integration Testing can be executed via the Big Bang or Incremental approaches. 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 software's main page. To ensure this, integration testing analyzes the interface link between the login and home pages.

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 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. Besides the business requirements, system testing also validates 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 the development of 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
  • Run 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 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 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:

1. Installation: Installation testing detects and resolves any error that may occur during software installation.
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: 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 how 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 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.

GoodFirms Research Process

Testing is a highly crucial part of the software development process. However, an even more important task is selecting the ideal partner from all the available software testing service companies. GoodFirms focuses on highlighting the top software testing companies after analyzing them based on 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 and the 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 assess their reliability further.

We strive to bring the best software testing service providers into the spotlight by marking them in every performance aspect. This allows service seekers to discover and hire the best software application testing company for their products. The above-listed testing service companies have worked for small-scale, mid-scale, and large-scale enterprises. They have a team of software testers with years of experience 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 and competitors. GoodFirms encourages all new and established software testing companies to participate in future research processes by submitting proof of their work and getting listed in our 'Research' division.