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List of the Best Software Testing Companies & QA Firms

  • Edvantis

    Creating Software Success Together
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    Edvantis is a global software engineering company with offices in Central & Eastern Europe and in the USA. Since 2005, we've been helping businesses achieve their software product development goals. We do this on time, within budget, and with the highest quality possible, consistently achieving a&n ... read more about Edvantis

    "Edvantis is a dedicated, highly skilled, and reliable team that we worked with for fifteen years"
    Levi Scott, Operations Technical Analyst at Indeed.com at Indeed
    $25 - $49/hr
    250 - 999
    2005
    Berlin, Germany
  • Lerpal

    Tech aces for Media and Marketing industries
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    Welcome to Lerpal — a tech company with a client-centric approach. In the game since 2004, we are headquartered in NJ with 100+ team members operating from 10 locations across Europe. We understand why you're here. You're looking for a reliable tech partner that not only understands ... read more about Lerpal

    "High Level of Expertise Equals High Level Product"
    Jeff Boyes, CEO/Founder at Evolution Nutrition & Daily Nourish at Evolution Nutrition
    $50 - $99/hr
    50 - 249
    2004
    New Jersey, New Jersey
  • Engro Technologies

    Building Your Digital Tomorrow, Today.
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    Niche Technology Services Company focussed on Digital Transformation with Specialized Industry Expertise in Cloud Native, IoT Solutions, and Custom Development.

    "OTT Platform for Middle East Countries"
    John H, Technical Manager at a Media Company (stealth mode) at
    < $25/hr
    250 - 999
    2021
    Hyderabad, India
  • 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
    Noida, India
  • At InfoGrain, we have a team of more than 200 skilled professionals, including blockchain R&D experts, content writers, marketers, engineers, and delivery heads. Our team is constantly growing, and we are building a technical behemoth. Our clients love our solutions and keep coming back for more. We have provided s ... read more about Infograins

    "Excellent team to work upon."
    Donald C. Anglin, Card puncher at MOBIS Parts America at MOBIS Parts America
    $25 - $49/hr
    250 - 999
    2011
    NYC, New York
  • 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 supported us with a dedicated testing team"
    Nick Semenov, Founder at REYME
    $25 - $49/hr
    10 - 49
    2019
    Cracow, 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

    "I am very satisfied, and I would recommend them to everyone."
    Aleksandra Kharlym, Marketing Manager at at Admixer
    $25 - $49/hr
    50 - 249
    2013
    Lviv, 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

    "Great Technical Partner"
    Montana Butsch, Founder of Spotivity at Spotivity
    < $25/hr
    250 - 999
    2006
    Noida, 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

    "Expert in IT Development Services."
    Alexandr Kapran
    $25 - $49/hr
    50 - 249
    2008
    Warsaw, Poland
  • 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

    "Platform Development for Online Application"
    Nazar Trokhymchuk
    $25 - $49/hr
    50 - 249
    2013
    Warsaw, 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

    "Consistent talent and service plus great ramp times in our rapidly-changing development environment "
    Erik Fogg, Founder at ProdPerfect, Inc
    $25 - $49/hr
    250 - 999
    1999
    Noida, 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.

    "Local Immersion"
    Gary Downey
    < $25/hr
    50 - 249
    2009
    Foster City, California
  • 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

    "Quick response with creative approach "
    Khushbu Rastogi, Lead Auditor and Quality Management at Expert Consultancy
    < $25/hr
    50 - 249
    2014
    Jaipur, India
  • 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
    Dubai, UAE
  • OKQA

    More than just testing
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    Why OKQA is more than just testing? We are not a company that comes and goes. We are a QA team that can become your long-term partner for on-demand software testing or ongoing QA tasks.We do not only provide manual and automation software testing services. We deliver comprehensive QA audits for e-commerce businesses ai ... read more about OKQA

    "Very professional QA testing with priortization and a well documented findings catalogue"
    Ralf Krone, Ergonomics at Continental Tires
    < $25/hr
    2 - 9
    2020
    Chernihiv, Ukraine
  • 9YARDS IT TECHNOLOGY PRIVATE LIMITED

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

    "Experts in the field of QA. Best outsourcing team to work"
    RP Singh, Sr. Business Manager at Mobilecoderz
    < $25/hr
    50 - 249
    2020
    Noida, India
  • We at Codoid follow a holistic approach towards QA process and test automation. Our dream of becoming a Niche Software Testing Company 7 years ago has come to fruition in 2018. We are now rated as one of the top QA companies in India with global headquarters in Chennai.Being an Independent Software Testing firm our con ... read more about Codoid Software testing Company

    "Automation Testing to Improve Website's Performance"
    Deepak Chawdhory, CTO at Vaibhav Stores
    NA
    50 - 249
    2012
    Chennai, India
  • 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

    "exceptionally skilled and versatile Team "
    Raffeena Ali, Project Manager at It Pro Shoppe Inc.
    $100 - $149/hr
    50 - 249
    2013
    Toronto, 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

    "Best IT Service providers"
    Akshay Parmar, SEO Executive at AEGIS
    $25 - $49/hr
    50 - 249
    2003
    NYC, New York
  • 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
    Boca Raton, Florida
  • Inoxoft

    IEC-ISO 27001, Google, Microsoft certified Company
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    Inoxoft is your dedicated partner in custom software development. With a passion for turning clients' business ideas into reality, we specialize in delivering innovative solutions across diverse industries, including Healthcare, Fintech, Education, Logistics, Real Estate, and Blockchain. We understand that ... read more about Inoxoft

    "Their consistent communication, availability, and attention to detail made them a valuable partner. "
    Amanda Goodman
    $25 - $49/hr
    50 - 249
    2014
    Lviv, Ukraine
  • A3Logics is an IT industry leader in digital transformation whether it is creating custom mobile apps or AI-powered software that allows businesses to thrive in the digital landscape. For over two decades now A3Logics - a CMMI Level 3 company that helps businesses gain unmatched competitive advantage and scale ROI. Wit ... read more about A3logics

    "Very dedicated team!"
    Diana Polyakov, Marketing and Sales Agent at Insurance Center Helpline, Inc
    $25 - $49/hr
    250 - 999
    2003
    Carlsbad, California
  • Krify is a bespoke mobile applications and software services provider based in UK, USA and India. Creating value for our clients is our passion and software technology is our forte. Our core competency includes Mobile App(Android, iOS, and Flutter), Web, Wearable app development and Digital marketing services. Krify ex ... read more about Krify UK Limited

    "The team helped me immensely, truly a gem of an organization to work with."
    Deepak Singla, Country Lead - Performance & Analytics Business at BMC Software
    < $25/hr
    50 - 249
    2005
    London, United Kingdom
  • 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

    "UpDoer Team always keen to do whatever it takes to meet the requirement."
    Richard Alberg
    < $25/hr
    10 - 49
    2017
    Noida, 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

    "Quailty assurance on 'auction platform development'"
    Geert Janssen
    $25 - $49/hr
    250 - 999
    2008
    Kirkland, Washington
  • ALLSTARSIT

    Build a team. Build a future.
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    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 provided high-quality resources for a cost-effective price"
    Valeria Raznatovska, Communications Manager at SOLV.
    NA
    1,000 - 9,999
    2004
    San Francisco, California
  • 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

    "Excellent product development & delivery"
    Raj Edirisinghe, CTO at Shido
    $25 - $49/hr
    50 - 249
    2016
    Warsaw, 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.

    "Service Quality is Excellent"
    Mitch Robbins, Founder at The Anthony Michael Group
    < $25/hr
    10 - 49
    2016
    Indore, India
  • 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

    "Great Communication"
    DEE KARAWADRA
    < $25/hr
    50 - 249
    2016
    Chicago, Illinois
  • 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 A Project Management & Task Tracking Tool"
    Alex Gostev 🇺🇦🇳🇴
    $25 - $49/hr
    50 - 249
    2001
    Beverly Hills, California
  • 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

    "Amazing company"
    Vansh Tangri, Medical Director at Whanau Ora Clinics
    < $25/hr
    2 - 9
    2019
    Mohali, India
  • 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
    Newtown, Pennsylvania
  • Stelo Technology

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

    "I recommend Stelo Technology"
    Aman Verma, CMO at Satvic Mantra Pvt. Ltd.
    < $25/hr
    10 - 49
    2019
    Pune, India
  • 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
    Mazatlan, Mexico
  • PerfectQA Services

    Software Automation and QA Company
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    PerfectQA Services is the industry-leading provider of software testing services. We are a team of highly skilled and experienced professionals who are dedicated to helping our clients achieve their testing goals. We offer a wide range of services, from traditional testing to cutting-edge automation solutions. We are c ... read more about PerfectQA Services

    "Expert Servoces by PerfectQA"
    Taral Shah, Director at Lomoso Solutions Private Limited
    $25 - $49/hr
    10 - 49
    2013
    Ahmedabad, India
  • 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

    "Quality Assurance services provided by QA Testing.io were comprehensive and phenomenal"
    Heather Craft, CTO at Hotwire Studios
    $25 - $49/hr
    10 - 49
    2019
    Reston, Virginia
  • Powercode

    Software Development Advice and Assistance
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    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

    "Android and iOS application were developed very well"
    Lyubcho Toshev
    $25 - $49/hr
    50 - 249
    2015
    Kyiv, 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.

    "Best tools, better team and wonderful results "
    Alex Jones, Health IT Consultant at Software Finder
    < $25/hr
    50 - 249
    NYC, New York
  • VisionQA Services

    Helping people to get top notched quality products
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    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

    "Knowledgeable, reliable and skilled!"
    Christina Lehn
    < $25/hr
    10 - 49
    2020
    Ahmedabad, 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 VIT

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

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

    "Team AwsQuality in highly professional"
    Samantha Stewart, Sr. BDM at Ultimate Software P Ltd
    < $25/hr
    10 - 49
    2014
    Noida, India
  • Zenesys Technosys

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

    "Experience the Perfection. Zenesys is one of the most highly recommended software solutions provider"
    Andrew Bout, Managing Partner at TruPoint Advisory
    $25 - $49/hr
    50 - 249
    2011
    Noida, India
  • Devstringx Technologies Pvt Ltd

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

    "Software QA Test Automation "
    Sweety Bhatt, Technical Project Manager at Chenoa Information Services
    < $25/hr
    50 - 249
    2014
    Noida, India
  • We expedite the development and QA processes to deliver the product & services within or before the suggested time period.Our services comes with lifetime support facilities. We maintain and constant upgrade our products according to the latest technologies and versions.Privacy and confidentiality of our clients ar ... read more about MetaDesign Solutions

    "MetaDesign Review"
    Ravi Someshwar, Principal at Independent
    $50 - $99/hr
    250 - 999
    2007
    Gurugram, India
  • AMgrade

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

    "Sales-boosting website for our latest Residential complex!"
    Ann E., Head of Marketing at Real Estate
    $25 - $49/hr
    10 - 49
    2010
    Praha, Czech Republic
  • Appkodes

    Brings your Dreams to Come True
    Visit website

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

    "Navigating App Creation with Appkodes: A Seamless Experience"
    Hachi Yin, Owner at HL Yin
    $25 - $49/hr
    50 - 249
    2012
    Madurai, India
  • Softengi

    We are a Digital Transformation Company.
    Visit website

    Softengi is the software development company listed as one of the top 100 world's IT outsourcing service providers by IAOP. We use transformational tools, such as AI, AR & VR, Blockchain, IoT and gamification to provide businesses with the most innovative solutions. With our profound experience and ex ... read more about Softengi

    "Had a great experience, very professional and approachable."
    Igor Taranenko, Director at Eastern Radiotech
    $25 - $49/hr
    250 - 999
    2009
    Kyiv, Ukraine

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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)