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List of the Best Software Testing Companies & QA Firms

  • 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
  • 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

    "Quality Assurance services: Recommended for the price but need good communication channels"
    Alister Cedeno, QA Manager at Teamflow
    $25 - $49/hr
    250 - 999
    2011
    United States
  • 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.

    "Great and trustful company"
    Rytis Augustinas, DIrector at Your Movie LTD
    < $25/hr
    50 - 249
    2008
    India, Israel
  • 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

    "Successive Digital showed exceptional technical expertise and collaboration skills."
    Sheetal Tiwari, Human Resources Business Partner at mPokket at mPokket
    $25 - $49/hr
    250 - 999
    2012
    India
  • 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

    "DeviQA > Experience working with QA out-stuff "
    Yana Kushnareva, Scrum Master at Grover
    $25 - $49/hr
    50 - 249
    2010
    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

    "Zapple helped us test our web banking app. Everything was great"
    Adam Sayers
    $25 - $49/hr
    10 - 49
    2015
    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

    "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
  • 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
    United States
  • 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

    "From the product roadmap to the development of the application's core, SPEC INDIA helped us create a market-ready product."
    Karam Sethi, CEO & Co-Founder at Terra Digital
    < $25/hr
    250 - 999
    1987
    India
  • 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

    "Redwerk is a great partner for all of your web development needs!"
    Stephanie Levine, UI/UX Designer, Website Product Manager at Justin Alexander
    $50 - $99/hr
    50 - 249
    2005
    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

    "Quick and Effective Delivery!"
    SERGEI RUSAKOV, Director of Operations at Alfatek Digital
    NA
    10 - 49
    2018
    Romania
  • 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

    ""Transforming Lotto Billions: A Fruitful Partnership with Captus Technologies""
    Edoardo Paluan, Chief Product Officer & Cofounder at Lotto Billions
    $25 - $49/hr
    10 - 49
    2012
    India
  • 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

    "Mobile App development with Altapac Group"
    Greg Tearne, Project Manager at Altapac Group at Altapac Group
    NA
    250 - 999
    2011
    Vietnam
  • 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.

    "Provide value for money services."
    Anonymous, Engineering Manager at Telecom Software Services
    $25 - $49/hr
    50 - 249
    2012
    United States
  • 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
    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
    United States
  • Fleek IT Solutions

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

    "Treatians - Healthcare Web and Mobile App Testing"
    Lal Narayan pratap, CEO at Treatians
    < $25/hr
    50 - 249
    2016
    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

    "Integrated QA Team For Health care Industries"
    Joost Van Heesbeen, Head Of Product at P.ai
    < $25/hr
    50 - 249
    India
  • 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 user a ... read more about Savarian.tech

    "Savarian.tech provided us with an in-house testing team that helped us improve our internal processes and increase the quality of products we work on."
    Yurii Maslov, CTO at DigitalSuits
    $25 - $49/hr
    10 - 49
    2019
    Poland
  • 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. Since we con ... 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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    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 the latest tech trends. Feel free to have a quick discussion with our architects to find out the b ... read more about Algoworks

    "The team at Algoworks is professional, consistently meeting timelines."
    Manu Raj Patel, Senior Business Analyst at Indian Oil and Gas Canada
    < $25/hr
    250 - 999
    2006
    India
  • 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

    "High professionalism, great resource management and engagement with the project"
    Julia Orlovska
    $25 - $49/hr
    50 - 249
    2013
    Poland
  • 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-quality work and pleasant interaction"
    Yuliya Egorova, Analysis at Own Business
    $25 - $49/hr
    50 - 249
    2008
    Poland
  • Mindfire Solutions is a 20+ 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
  • In addition to a fully staffed blockchain R&D department, appealing content writers, fantastic marketers, skilled engineers and compassionate delivery heads make up InfoGrains 200-plus person team, which is expanding every single day. A technical behemoth is being built at InfoGrains. Our consumers adore us and kee ... read more about Infograins

    "A Rollercoaster Ride with INFOGRAINS"
    Dara Khosrowshahi, Chief Executive Officer at Uber at Uber
    $25 - $49/hr
    250 - 999
    2011
    United States
  • 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.

    "Very Reliable & Trusted Technology Partner for Staffing & Recruitment Industry"
    Aksahy Sharma
    < $25/hr
    50 - 249
    2009
    United States
  • 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

    "Highly Recommended and Reliable Company "
    Anup Kumar, Software Architect and CTO at Gropse Technologies
    < $25/hr
    50 - 249
    2014
    India
  • 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 team was good at communication and highly professional."
    Viacheslav Chernenko, Director of Business Development at Pragmatic DLT at Pragmatic DLT
    < $25/hr
    50 - 249
    2005
    Ukraine
  • 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

    "Good quality service"
    John T. Emmatty, Founder/CEO at Hurry
    < $25/hr
    10 - 49
    2017
    UAE
  • 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

    "Mobile app development "
    Elmira Galiyeva, Manager, Toronto North Local Immigration Partnership at JVS Toronto
    $100 - $149/hr
    50 - 249
    2013
    Canada
  • 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

    "Great Team and very good customer service"
    Deepak Sakhrani, Director at Hiya Digital Private Limited
    $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

    " Satisfying IT solutions for Fantasy Sports App Development and more."
    Marc Berman, pres at Marc Berman
    $25 - $49/hr
    250 - 999
    2003
    United States
  • UpDoer Technology

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

    "High responsiveness & professionalism"
    Poonam Bhardwaj, Business Specialist at Saletancy
    < $25/hr
    10 - 49
    2017
    India
  • pwrteams

    Scale your enterprise with cross-border teams
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    We provide IT staff augmentation services to our clients through our service centers in Poland, Lithuania, Serbia, Estonia, and Ukraine. We carefully select the best people to match your IT needs, language requirements, and company culture. Our experts work directly with your team and we take care of all supportin ... read more about pwrteams

    "Find.me is what it is thanks to Skelia."
    Stefan
    $25 - $49/hr
    250 - 999
    2008
    Luxembourg, Poland
  • The company’s mission is to help global organizations overcome technology challenges of Digital Transformation with the focus on new and emerging technologies, which we believe should make a positive impact on each area of our lives, making it simpler, smarter, and opening new promising horizons.Delivering innova ... read more about DigiPrima Technologies Pvt. Ltd.

    "eCommerce Website Development for Tajik Home LLC with Quality Assurance."
    Joseph Zisa, eCommerce Specialist at TajikHome LLC
    < $25/hr
    10 - 49
    2016
    India
  • DevelopsToday is a mobile and web development team guided in delivering prime-quality products and views. We help aspiring startups and well-established businesses bring their bold ideas to life and launch mobile and web apps. Industries we serve: Blockchain, Healthcare, eCommerce, and Social. What s ... read more about DevelopsToday

    "Competent technical partner for custom AI-powered solution development"
    Roman Barbotkin, CEO at Synapse Team
    $25 - $49/hr
    50 - 249
    2016
    Poland
  • TechAvidus

    Building Custom Software, web and mobile solutions
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    TechAvidus is Top Rated Custom Software development & Digital Marketing agency, with a focus on Web Development, Mobile App development, custom software development, and digital marketing services (SEO, PPC, and Social Media Marketing). Our relentless focus on our clients has led us to over 150 5-star reviews si ... read more about TechAvidus

    "His Whole Team is Organized, Efficient, and Talented"
    Shane Rodriguez, IT Administrator at Community Counseling Solutions
    < $25/hr
    50 - 249
    2016
    United States
  • TestFort

    QA/Manual/Automated Testing ✅ISO certified ✅ISQTB
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    TestFort is an award-winning team offering transparent and flexible software testing and QA services. The company was created in 2001 and has grown tremendously ever since. TestFort engineers have proven their expertise with ISTQB and IBM certifications and performed 300+ projects for both startups and worldwide corpor ... read more about TestFort

    "Software Testing Services for Telehealth Platform"
    Denis Kovalenko
    $25 - $49/hr
    50 - 249
    2001
    United States
  • Founded by a real QA tester BespokeQA has dealt with testing, structuring, creating solutions for more than twenty-five clients across ten industries for last more than one year. Our mission is to help clients make distinctive, lasting and substantial improvements in their business and to continue building a great comp ... read more about BespokeQA

    "Reliable and Smart team"
    Vivek Kapoor
    < $25/hr
    2 - 9
    2019
    India
  • Kavichki

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

    "Expert testing team"
    Olga Neroda, Сhief Marketing Officer at at Teachbase
    < $25/hr
    10 - 49
    2010
    Russia
  • QA Supermarket

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

    "Excellent experience using QA supermarket"
    Fern Bazuin, Quality Assurance Manager at at RoomRaccoon
    NA
    2 - 9
    United States
  • Outpost QA

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

    "Top notch Quality Assurance engineering team delivering tangible value at a very reasonable cost"
    Tyler Newman, Director Of Quality Assurance at at Owlet Baby Care
    $25 - $49/hr
    10 - 49
    2020
    Mexico
  • QA Testing.io

    Ensure Quality with our Tailored QA Solutions
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    At QA Testing.io, we are dedicated to providing top-notch software quality assurance services to ensure your product is reliable, efficient, and user-friendly. Our team of experienced QA professionals uses the latest testing methodologies and tools to ensure maximum coverage and minimal risk. We understand the importan ... read more about QA Testing.io

    "We appreciate QA Testing.io for their exceptional results, expertise, professionalism, and commitment to delivering quality services our project"
    Zaynab Tucker, Chief Executive at Nitro League
    $25 - $49/hr
    10 - 49
    2019
    United States
  • ALLSTARSIT

    Build a team. Build a future.
    Visit website

    ALLSTARSIT is an international Software R&D, Technical Support, and Talent Acquisition service provider established in 2004. Headquartered in Warsaw, Poland, ALLSTARSIT operates development hubs across the whole CEE Region (Poland, Ukraine, Czech Republic, Romania, and Bulgaria), Israel, and Dubai. Additionally, ... read more about ALLSTARSIT

    "ALLSTARSIT stands out with their superb staff augmentation services"
    Alexey Shapran, CEO at PioGroup Software — Experts in EdTech software development at PioGroup
    NA
    1,000 - 9,999
    2004
    United States
  • Powercode

    Software Development Advice and Assistance
    Visit website

    Powercode is an innovative web and mobile application development company. Our goal is to stay on top of the rapidly changing tech trends and deliver up-to-date software solutions for our client's ideas. Сompany team includes over 100 engineers with deep expertise in more than 25 advanced and trusted programmin ... read more about Powercode

    "Great work!"
    Александр Киценко, Управляющий партнер at 4E CONSULTING
    $25 - $49/hr
    50 - 249
    2015
    Ukraine
  • Kualitatem Inc. is an independent Software Testing Company, Information Systems Security and Auditing Company providing services to a global clientele. Core software quality assurance services cover the entire testing lifecycle focused on software automation testing, manual functional testing, application performa ... read more about Kualitatem Inc.

    "Outstanding Software Testing Services"
    Scott Andery
    < $25/hr
    50 - 249
    United States
  • VisionQA Services

    Helping people to get top notched quality products
    Visit website

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

    "Reliable and responsive"
    BibiNogs India
    < $25/hr
    10 - 49
    2020
    India
  • Vyshnavi Information Technologies India Private Limited (VIT) is a global Information Technology Company established in the year 2001 with headquarters in Bangalore, having development centers in Bangalore, Pune, US and Canada. Our range of services includes Design, Development and Testing of software components for Pr ... read more about Vyshnavi Information Technologies (India) Pvt. Ltd

    "Review of VIT"
    Steve Hyde, Director, Operations and Quality Assurance at TRADING CENTRAL
    $25 - $49/hr
    250 - 999
    2001
    India

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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.