Here is complete list of Top Software Testing Companies, QA Tester
1. Moolya Software Testing:
https://moolya.com
Moolya is a Software Testing Services company, who helps its customers prevent bugs and tech dept. Moolya’s customers are deep tech fast growing start-ups and enterprises. The fastest growing companies in India, USA, Europe, Middle East and South East Asia have chosen Moolya. Our vision to help find the source of bugs and prevent them differentiates us from the rest of the world. We help influence the culture of quality and help people do the right things. Testing, Automation and QA comes in handy when the culture of engineering and product is aligned and right. We provide the right solutions to enrich the experience of our customer’s audience.
Services Provided by Moolya Software Testing:
Web And Mobile App Testing, Automation Testing, Performance Testing, Security Testing, Compatibility Testing, Dedicated QA Team, Software Testing Consultancy, QA Outsourcing, Usability Testing, Compatibility testing, Regression testing, Database testing, agile testing.
Key Clients: Disney+Hotstar, Jupiter, Phonepe, NTT Data, Flipkart, Myntra, Postman, Food Panda
2. DeviQA:
https://www.deviqa.com
DeviQA is an Independent Software Testing Company with high-experienced team of 150 QA Engineers. Therefore, we cover the entire range of QA tasks with our services. We are ready to offer our potential clients a free trial period to make sure that our approach to testing is the best on the market. We have extensive experience in developing auto tests for all platforms, and we have experience in more than 40 automated test frameworks. We can offer robust, timely and affordable Quality Assurance solutions. As A-team players who ‘live and breathe’ the project, client satisfaction is our absolute priority.
Services Provided by DeviQA:
Our offerings include Automated testing for Web Mobile, Full-cycle testing, QA process design and setup, Performance, Load and Stress testing, Responsibility for quality of your project, API testing, QA consultancy & Audit, etc.
Key Clients: Mimecast, Biznessapps, Sprinklr, WeHeartIt, SoftNas, UBTteam, Connexient, Arklign, CipherHealth
3. QA Mentor:
https://www.qamentor.com
QA Mentor is multi-awards winning a CMMI Level 3 SVC + SSD v1.3 appraised, ISO 27001:2013, ISO 9001:2015 and ISO 20000-1 certified leading software testing company headquartered in New York. With 318 global QA resources in 8 different countries offering more than 30 QA Testing Services and covering all time zones, QA Mentor is a global leader in Software Quality Assurance and Testing space. Serving 427 clients from Fortune 500 to start ups in 28 countries, QA Mentor supports applications in 9 different industries. With unique products propositions from a crowdsourcing platform with a pool of 12,000 crowdsourced testers to a test management platform, unique and economical services offerings and QA education from e-learning and corporate training, QA Mentor continues its growth, expansion and footprint around the globe.
Services Provided by QA Mentor:
API Testing, Functional Testing, Mobile Testing, Automation Testing, Performance Testing, Security Testing, Compatibility Testing, Game Testing, Localization Testing, Crowdsourcing Testing, Database Testing, Big Data Testing, Artificial Intelligence Testing, Localization Testing, QA Audit & Transformation, E-Learning & Corporate Trainings, On-Demand Testing
Key Clients: HSBC, Citi, Morgan Stanley, BOSCH, Aetna, Experian, eBay
4. Testrig Technologies:
https://www.testrigtechnologies.com
For more than 5+ years, Testrig Technologies is the top award-winning independent software testing and Quality assurance company with a strong awareness all over the world including the USA, UK, and India. As a Multi-National QA service provider, Team Testrig has the specialization and expertise in various sectors of QA and software testing such as web and mobile application testing, manual and automation testing, Domain testing, Device testing, agile testing, etc.
Services Provided by Testrig Technologies:
Web application testing, Mobile application testing, manual testing, Automation testing, Cloud testing, Performance testing, Security Testing, Usability Testing, Compatibility testing, Regression testing, Database testing, agile testing, big data testing, domain testing, Localization Testing
Key Clients: Upstock, Avorra, BoardingSchoolReview, SEOSitecheckup, Cloudaeon, CompanyIQ, Invezza Technologies, Pubspot, Brand Impact Merchandising
5. Testmatick:
https://testmatick.com
TestMatick is a leading provider of top quality software testing services. The company was founded in 2009 and headquartered in New York, USA. Our strong team of testers can start testing your project of any complexity within 24 hours.
Services Provided by Testmatick:
Automated Testing, Mobile Testing, Web Testing, Performance Testing, Security testing, Mobile Automation Testing, Dedicated QA Team, Software Testing Consultancy, QA Outsourcing, Full-Сycle Еesting, QA Process Design and Setup
Key Clients: Hubrick, KEYPR, Sweetrush, oneUp, PageSuite, Grape, Doppler Labs, Redmadrobot, Global-e
6. Konstant Infosolutions: 
https://www.konstantinfo.com
Konstant Infosolutions is a premier software development company, offering a wide range of web and mobile solutions across the globe since 2003. The company has a team of 180+ highly qualified and experienced IT professionals who can deliver best of technology solutions and consulting services across diverse business needs.
Services Provided by Konstant Infosolutions:
As a leading software development company, Konstant provides reliable web and mobile solutions spanning across Native Mobile Apps Development, Cross-Platform Mobile App Development, Custom Web Development, UI/UX Design Solutions, Artificial Intelligence, AR/VR Development, E-Commerce Solutions, Database Programming, CMS Development, Enterprise Mobility Solutions, Cloud Consulting and IT Consulting – offering businesses delightfully tailored and trendy solutions in their budget.
Key Clients: United Nations, Wonder Cement, Volkswagen, Stanley, Citrix, Project Action Star, RawBank, Houghton Mifflin Harcourt, ThomasVille, Scholastic, Nestle, NASSCOM, TABCO.Food and more.
Client’s Review:
“They delivered a functional platform that met guidelines and the client’s criteria as defined in the scope of work, ensuring timely delivery. The team was responsive to change requests and demonstrated an understanding of the vision, impressive communication skills, and expertise.” – Matthew C.
7. Infosys Public Services, Inc.:
https://www.infosyspublicservices.com
Infosys Public Services is a leader in business consulting, technology solutions, and next-generation digital services. We enable public sector organizations in the US and Canada to navigate their digital transformation journey.
Services Provided by Infosys Public Services, Inc.:
Data Analytics, Blockchain Services, Legacy Modernization, QA Testing, Cloud Services
Key Clients: Public Services Procurement Canada, Ministry of Transportation of Ontario
8. QA Notion:
https://www.qanotion.com
We began as a software testing firm with the goal of growing startups, SMBs, and large enterprises through quality-driven solutions, and have since expanded to become a trusted A++ grade software testing company. We have a team of skilled QA testers at QA Notion. Our mission and vision are to provide the best possible business outcomes that ensure a profit and brand recognition. We have been ranked as one of the best software testing companies for years by leveraging the potential of trending tools and technologies and combining them with our working expertise.
Services Provided by QA Notion:
Services: End to End Manual Testing, Functional, Automation Testing, API Testing, Application testing, performance testing, AI Testing, salesforce testing
Key Clients: Topology Pro, Samaritan Infotech, Shyam Fish, Mapple Beauty, AIMP Services, GST Corner, Colour Drive, e-Room Rent Services
9. BugRaptors:
https://www.bugraptors.com
BugRaptors is a certified software testing company with extensive experience as a third party testing vendor and effectively proven as a global leader in software testing & QA services provider.
Our strategic initiatives, communication, and commitment to quality exceed expectations of clients looking for low-cost and high-quality outsourced software testing solutions.
Services Provided by BugRaptors:
Web and mobile testing solutions, Automation Testing Solutions, Game testing services, Security Testing Services, Performance Testing Solutions, ERP Testing Solutions, Agile and DevOps testing, Hybrid Test Automation Framework, Cloud testing Services, Big data testing, Regression testing, Installation testing, Usability testing services
Key Clients:
10. ZappleTech:
https://zapple.tech
First-class Automation Testing Agency, Test automation first approach is a main driver in modern agile development. Achieving better automated tests coverage increase software testing speed twice, providing quicker results and better business outcome. To keep up with shorter sprints and facilitate agile development, it is important to start testing as early as possible, automating test cases in the right amount across all levels of the system. Custom automated testing frameworks and tools, as well as scripts, accelerates various tasks and processes during continuous delivery, eliminates the human factor, and saves man’s time.
Services Provided by ZappleTech:
100% focused on Test Automation Outsourcing and Services to deliver automated test solutions that reduce costs & increase efficiency to get better software delivery
Key Clients: Trivago, Couchsurfing International, Tele2, Activated Insights, Aptitude Media, Zycus Inc, Cornell University, Missguided, iDeals, BookingLive, Bridge
More Industry Leaders:
11. Testhouse:
https://www.testhouse.net
Testhouse is a thought leader in Quality Assurance, software testing, and DevOps space. The company was founded in the year 2000 in London, UK, with a mission to contribute towards a world of high-quality software. It also has offices and operations in the Middle East, the USA, and an offshore development center in Trivandrum, India. For 20 years, Testhouse has been helping businesses across the globe deliver great user experiences through innovative QA solutions and a unique off-site, on-site, and offshore delivery model. The company’s highly customizable software testing and quality assurance solutions ensure the shortest turnaround times to improved business efficiencies and return on investment. Testhouse is also a certified Microsoft Gold partner and leading DevOps practitioner. Testhouse is a fast-growing global organization with a strong presence in the Middle East, the USA, and India in addition to the UK and Europe.
Services Provided by Testhouse:
Automated Testing, Mobile Testing, Web Testing, Performance Testing, Security testing, Mobile Automation Testing, Dedicated QA Team, Software Testing Consultancy, QA Outsourcing, Microsoft Dynamics 365 testing, consulting & training on Microsoft, HP and IBM tools, source code security code review, feasibility study, assurance audit and other IT and quality assurance consultancy services
Key Clients:
12. WillowTree:
https://willowtreeapps.com
WillowTree is a new-gen design and app development company that builds AI-driven mobile and web applications. They deliver advanced tech solutions for various industries, including finance, health & wellness, travel & hospitality, food & beverage, media, retail, and eCommerce. This mobile app development company provides clients with some of the most experienced artificial intelligence experts to craft unique digital solutions.
They are your go-to digital partner that helps face complex challenges and harness the power of generative AI to strategize digital solutions using expertise in marketing, design, strategy, and engineering. Their teams leverage artificial intelligence to build human-centric designs for extraordinary outcomes and deliver top-notch user experiences.
Services Provided by WillowTree:
Strategy Consulting, Data & AI, Design & Creative, Product Development, Digital Marketing
13. Monstarlab:
https://monstar-lab.com
Monstarlab demonstrates its expertise in providing enterprise-level digital solutions and consultancy to its global clients. This Tokyo-based digital consultancy firm has worked with several renowned corporations and entrepreneurs and delivered thousands of projects. They have become one of the top product development firms; all credit goes to their resilience, quality services, and quick responsiveness.
The company is popular in the mobile and web development industry for its unique approach to engineering products, delivering services, and building a robust app development ecosystem. Considering the culture of continuous learning, adapting to new tech, and fostering innovation, Monstarlab is the perfect choice for your next project.
Services provided by Monstarlab:
Mobile App Development, Custom Software Development, Big Data and BI, IoT Development, IT Staff Augmentation
Key Clients: Fujitsu, Gardens by the Bay, CHR Hansen, HSBC, Shake Shack
14. Eleks:
https://eleks.com
For over 26 years, we’ve been working as a software innovation partner to Fortune 500 companies, big enterprises and technology challengers. Our team of 1,100+ professionals provides you with a full range of software engineering and consultancy services.
Software products that we build help the world’s leading brands transform their businesses, increase their revenues and save up to 40% of the time and operating costs.
Services Provided by Eleks:
Software Engineering, Technology Consulting, QA, R&D, Business Analysis, UX Consulting, Security Services.
Key Clients: Aramex, Eagle, Russman, Medusabusiness, Teleologica, Havas, Reactoo, Blackboard, Accelerated Analytics, Coras, Xceedium, States of Jersey.
15. Cleveroad:
https://www.cleveroad.com
Cleveroad team is your reliable partner in software design and development. Starting with an idea, through requirements analysis to UI/UX design creation and development, we work hard to drive value into every project we undertake. Having delivered over 130 software solutions, we gained vast expertise in iOS, Android and Web apps development. We believe that creative thinking and collaborative approach to every step of development process delivers top-notch products.
Services Provided by Cleveroad:
Cleveroad provides full stack development services – mobile, web, desktop apps development, user-first UI/UX design, responsive web design, and development, backend integration, outstaff services.
Key Clients: DPD, HSBS, BET3000, Virgin Atlantic, PrankDial, MoneyWiz, Fuji HI, Octopus, Cartogram, Blockbuster
16. Oxagile:
http://www.oxagile.com
Oxagile is a full-cycle software development company that enables businesses to transform, scale and gain competitive advantage, through the expert delivery of innovative, tailor-made solutions. Founded in 2005, we have successfully completed over 400 projects for multiple industries and business domains. In addition to a solid grasp of cutting-edge techs, our clients benefit from a truly tailored approach, flexible resource scaling, and expert PMO governance.
Services provided by Oxagile:
Together with custom software development, Oxagile’s key areas of expertise include web and mobile app engineering, cloud application development, legacy modernization, DevOps and R&D projects, software testing and quality assurance.
Key Clients: Discovery, Google, Vodafone, Kaltura, Veon, Motorsport, Management Sloan School, Cardiff University, Consumer Fusion, Thomson Reuters, Disney, Telecom.
17. Ready4S:
http://ready4s.com
Ready4S is a full-time mobile app development firm that is managed from Poland and is a highly recommended mobile app developer in the United States. They form a great company that supports quality IT outsourcing across the globe. A small team of developers, business analysts and quality analysts is proficient to inspire startups and entrepreneurs in setting up an imperial brand among global audiences through high-tech, influential apps.
Services provided by Ready4S:
The company offers free app development consultancy to all types of businesses and productive business solutions.
Key Clients:
18. Algoworks:
https://www.algoworks.com
Algoworks is one of the pioneering mobile app development companies in the app development industry. The company provides competitive mobile software development services to its international clients. This digital transformation firm offers DevOps and Salesforce services (consulting, customization, and integration). This award-winning consulting and development company utilizes extensive knowledge, expertise, and experience in solving tech problems.
Due to their innovative approach and subject-matter expertise, clients have showered them with good reviews, repetitive work, and high praise since the beginning. They take pride in bringing complex ideas to life, using a client-centric approach from design and development to deployment, and readying it for the launch in the market.
Services Provided by Algoworks:
Consulting, UI/UX Design, Quality Assurance, Custom Apps, Custom Solutions, Salesforce Services
Key Clients: Microsoft, Dell, Birdees, Cycle, Hoobi
19. Vates Software:
https://www.vates.com
Vates is dedicated to software development, testing, quality control and R&D. Since 1991, we have been devoted to providing IT products and services to corporations and governments, always following the strictest quality standards. From our offices around the world, we have been providing global IT solutions to our international clients for over 25 years.
With over 500 employees around the world we offer a wide range of software services including advanced IoT development, nearshore software outsourcing, .Net software development, agile teams, offshore software development, advanced Big Data and analytics solutions and much more.
Services Provided by Vates Software:
IoT, Big Data, Nearshore Software Development, Custom Software Development
Key Clients: IBM, Oracle, Siemens, HP, Motorola, NEC, FIAT, TYCO, Accenture, At&T, SAS, Shell, Citibank, Stoller, Tenaris, Pinnacle, Tracfone, ALLUS, ARRIS, MLS, RIPCHARTS, OPS
20. Ergonized:
https://www.ergonized.com
Ergonized is a service company that helps automate business processes for small and medium-sized businesses based on the Salesforce CRM, Zoho CRM, Sugar CRM systems, as well as using modern frameworks like Laravel, Symfony, Vue, Angular.
Services Provided by Ergonized:
Salesforce Consulting Services, Salesforce Dedicated Teams and Developers, Salesforce Implementation Services, Salesforce Configuration and Customization, Salesforce Data Migration Services, Salesforce Classic to Lightning Migration, Salesforce Integration Services, Salesforce Support Services, Salesforce Application Development Services, Salesforce Managed Services
Key Clients: The Workplace Company, Infarm, Transcend, Academy for Teachers, QMI, Payne Auto Group, SYNC Sponsorship
Software testing techniques have evolved with time, inspired by the manufacturing process and client’s expectations, test teams in top software testing companies have shifted from waterfall approach applied earlier towards Agile and DevOps methodology involving step-by-step checks towards quality engineering that introduces testing at an early stage without waiting for customer’s acceptance phase. IoT is a complete web of inter-connected things, which are not free from vulnerabilities and hence must be tested for quality, functionality, and security. Agile Manifesto can be really helpful with user experience (UX) work like planning, execution, and evaluation. Big data testing has gained traction recently within software testing companies, which helps manage terabytes of data which cannot be processed by traditional computing techniques. Besides this QA analysts perform API and Microservices test automation along with open source tools. Here is a list of top QA testing companies for 2025 that can help change and speed up the process, which will help in faster updates, better user experience and further advancement to the next level of computing.