Top 20 Software Testing Services Companies in 2025 (RANKED)

Here is the list of the best Software Testing Service Provider Companies worldwide. Check out the detailed reviews of the top software testing companies with comparisons:

Are you looking for an independent software testing service provider company to help improve the quality of your IT applications? After doing in-house research for testing solutions, are you still clueless about improving the quality and performance of your IT application?

Now you don’t need to spend thousands of dollars to build and maintain a testing team and process. Instead, you can use cost-effective solutions provided by QA software testing service providers from all over the world.

Software Testing Service Providers: Market Trends

We have compiled a list of the top software testing companies around the world.

These QA Vendor companies can provide you with the best solutions and more control over the process, resulting in higher productivity of your existing teams and releases. Outsourcing testing work to specialized service providers is always the best solution for cost-cutting and building a high-quality competitive product.

List of Software Testing Services:

All Manual and Automated Testing Services:

1. Functional Testing Services
2. Configuration Testing Services
3. Web services Testing Services
4. Acceptance Testing Services
5. Compatibility Testing Services
6. Integration Testing Services
7. Load Testing Services
8. Security Testing Services
9. Automation Testing services
10. Mobile Testing Services
11. Migration Testing Services
12. Platform Testing Services
13. Usability Testing Services
14. Network Testing Services
15. QA process design

Best QA Software Testing Service Companies Worldwide

Below is the list of top Software Testing Companies with excellent QA services:

Comparison Table of Top QA Software Testing Companies

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Here is a detailed review of the top software testing services:

#1) QA Mentor

QA Mentor is one of the best software testing companies worldwide. A multi-award CMMI Level 3 appraised, ISO certified global software testing service provider headquartered in New York serving 427 clients from 28 countries in 12 different industries for over 10 years.

Headquarters: New York, USA
Revenue: US $5-10 M
No. of Employees: 200-500

Service Cost/Packages:

• The economy package starts at $15 per tester per hour for Manual Tester.
• Automation Testing Services start at $19 per hour for Automation Engineer.
• Performance Testing Services starts at $20 per hour for a Performance Engineer.
• Security Testing Services starts at $21 per hour Security Penetration Tester.

Core Services: Functional Testing, Automation Testing, Performance Testing, Mobile and Browser Testing, Usability Testing, Web Testing, Security & Penetration Testing, QA Audit.

Prominent Clients: HSBC, Citi, Morgan Stanley, BOSCH, Experian, Aetna.

Verdict: Very flexible engagement models that can fit any budget with on-demand testing and no limitations on the number of hours, 5 shifts operations, 24/7 coverage including weekend shifts, 83+ industry awards, and recognitions.

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#2) A1QA

Headquarters: Colorado, USA
Revenue: US $10 M
No. of Employees: 500-1000
Service cost/ package: Contact them for the quote.

Core Services: Consulting, Test Automation, Web application testing, Mobile application testing, Pre-certification testing, Documentation.

Prominent Clients: Emt, Acronis, Genesys, Croc, GFI, Lanit, ForexClub, QIWI, Adidas, Turkcell, InterCall, Equisys, Kaspersky.

Verdict: Provides result-oriented QA services, Full-Cycle testing, Dedicated teams for mid and long-term projects,
Automated testing services.

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#3) QASource

Headquarters: California, USA
Revenue: US $5-10 M
No. of Employees: 1400 – 1700
Service cost/ package: Contact them for the quote.

Core Services: Automation Testing, API Testing, Functional Testing, Mobile Testing, Salesforce Testing, DevOps services, and dedicated testing teams.

Prominent Clients: Telespree, Facebook, eBay, IBM, Oracle, Newcars.com, Riverdeep, Prudential.

Verdict: Provides testing solutions as per customer needs and customizable pricing plans.
To provide quality works with the hybrid onsite & offshore model.

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#4) MuukTest

If you are looking for a software testing company that automates and streamlines QA, MuukTest is one of the best. Upon hiring them, you are immediately assigned a QA expert who starts the testing process by reviewing your software both manually and via MuukTest’s AI-based platform.

Headquarters: North Carolina, USA
Revenue: Less than $5 Million
No of Employees: 11-50

Service Cost: Pricing will vary and depend on various factors. For an accurate quote, you’ll need to contact MuukTest’s team and let them know your requirements. You are offered a 30-day risk-free trial of their services. 

Prominent Clients: Qooper, Recruiter.com, Pienso, CounterTools, etc. 

Verdict: MuukTest offers a ton of benefits to make their services enticing for small and large enterprises. You are guaranteed full coverage in 90 days or less. Plus, maintenance is covered automatically and you have a seasoned QA professional at your beck and call through all stages of the testing process.

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#5) TestMatick

Headquarters: New York, USA
Revenue: US $1-2 M
No. of Employees: 50-200
Service Cost/package: Contact them for a quote.

Core Services: Mobile Testing, Automated Testing, Load Testing, QA Recruitment Services, Security Testing, Web Application Testing.

Prominent Clients: Sweetrush, Mediaspectrum, Globale, WebShadow, Marsys, PageSuite, SpiralScout, DCV technologies.

Verdict: It provides its services to many industries like banking and healthcare. It has customizable testing processes and flexible QA outsourcing businesses and models.

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#6) DeviQA

Headquarters: Kiev, Ukraine
No. of Employees: 10-100
Service cost/ package: Contact them for the quote.

Core Services: Web application testing, Mobile application testing, Automation testing, Performance testing, QA consulting, and audit.

Prominent Clients: InGo, FindHotel, expressHR, XOLA, BusinessApps.
Verdict: It provides full-cycle QA services.

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#7) QualityLogic

Headquarters: California, USA
Revenue: US $9-10 M
No. of Employees: 100-200
Service cost/ package: Contact them for the quote.

Core Services: Mobile & web application testing, Automation Testing, API Testing, Big Data Analytics & Telemetry.

Prominent Clients: Cisco, AT&T, Verizon Wireless HP, HighTail, openADR, eHarmony, Hawaiian Electric, Adobe.

Verdict: Offers flexible service model, On-shore support & Ongoing ROI.

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#8) iBeta

iBeta Quality Assurance has been providing critical outsourced software testing services for the world’s most trusted brands since 1999. Customers range from Fortune 500 companies to small start-ups and are located around the world. All work is conducted in a fully equipped 40,000 sq ft lab in Denver, Colorado.

Headquarters: Colorado, USA
Founded in : 1999
Revenue: US $5-10M
No. of Employees: 51-200

Core Services: Manual testing, Automated testing, Load and Performance testing, Mobile testing, Website testing, Accessibility testing, e-commerce testing, Biometrics testing, EPCS certification, and Overall quality assurance.

Clients: Hasbro, Ricoh, Express, Quiznos, Pitney Bowes, Gold’s Gym, Jawbone, Irisguard, DaVita, Sandia National Laboratories, US Department of Homeland Security, US Drug Enforcement Administration, and many more. Most work is conducted under non-disclosure agreements that prohibit the disclosure of client names.

Capabilities:

• Functionality: iBeta will explore the functionality of your mobile application or responsive website and produce clear, useful bug reports.
• User experience: Will analyze the user experience of your website or mobile application across all applicable devices and mobile operating systems.
• Continuous communication: iBeta’s teams will adapt to your development process to get you the right feedback on your mobile testing project at the right time.
• Real devices: Conducts mobile testing on a wide variety of hardware, operating systems, and browser versions on different carriers (no emulators).
• Huge inventory: iBeta’s lab is stocked with hundreds of different phones and tablets and are always adding more to keep the selection of mobile devices current.

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#9) QA Wolf

Headquarters: Seattle, WA
Revenue: US $1 – $10 M
No. of Employees: 5-20

Service cost/packages: Fixed pricing with no hourly fees. Contact them for a quote.
Core services: End-to-end test automation for web applications and Salesforce.
Prominent Clients: Not disclosed

Verdict: QA Wolf is the first solution that automatically turns user analytics into automated test cases. This allows the team to promise 80% test coverage within 90 days for a fixed rate.

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#10) Aspire Systems

Headquarters: US
No. of Employees: 3500+
Service Cost / Package: Contact us with your requirements

Core Services: Enterprise Application Testing, Test Automation, API/Microservices Testing, Performance Testing, Functional Testing, Test Consulting, DevOps Testing, Mobile Testing, AI-led Testing, Managed Testing Services, User Acceptance Testing, Usability Testing, System Integration Testing, SaaS/Cloud Testing.

Verdict: We provide end-to-end testing and help reduce testing efforts by up to 50% by focusing on AI-led test automation.

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#11) Mindful QA

Headquarters: Los Angeles, CA (all workers are located in America)
No. of Employees: 50-200
Service cost/packages: On-demand, simple hourly pricing with no long-term contracts required.

Core Services: Manual Testing, Automated Testing, Performance Testing, API Testing, iOS & Android Mobile App Testing, Software Testing, Website Testing, QA Recruitment, User Experience, QA Process Optimization, and Agile Consulting for businesses of all sizes.

Prominent Clients: Google, BMW, Mott’s, Zillow, H&R Block, Discovery, Microsoft, Taco Bell, Volkswagen, Mission Minded, and many more.

Verdict: Ethical QA company with reliable Agile QA testers available quickly, whether you need 20 hours or full-time. A flexible process with testers that can join your standups, Jira, and Slack as desired. Founded by a QA professional with 10+ years of experience, named “Top 50 Tech Visionary of 2019.”

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#12) GlobalAppTesting

Headquarters: London, UK
Revenue: $9M
No. of Employees: 50 to 200

Service Cost/Package: There are three packages i.e. Base, Localized, and Enterprise.

Core Services: Crowdtesting, Mobile App Testing, Localized Testing, Exploratory Testing, Test Case Execution, Functional Testing, etc.

Prominent Clients: Facebook, Google, Microsoft, Spotify, Instagram, Depop, Craigslist, Verizon, Citrix, Evernote, etc.

Verdict: Trusted by the top development teams in the world and tested over 6400+ applications, Global App Testing offers best-in-class functional web and app testing at speed. Use a blend of crowd testing and intelligent automation to help release high-quality software anywhere in the world.

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#13) TestingXperts

Headquarters: Mechanicsburg, US
Revenue: US $10-25 M
No. of Employees: 1000-5000
Service cost/ package: Contact them for the quote.

Core Services: Functional & Non-functional testing, Test advisory and consulting, and Some specialized Testing services like Data migration testing and Mobile application testing.

Prominent Clients: Clients from the banking, financial services, insurance, retail/e-commerce & healthcare industry.

Verdict: Offers flexible solutions as per need. Perfect for keeping time which offers on-time delivery. ISO-certified company.

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#14) Abstracta

Headquarters: San Francisco, USA
No. of Employees: 115
Service Cost / Packages: Contact them for the quote

Core Services: Software Testing, Test Automation, Performance Testing, Accessibility Testing, Mobile Testing, Tool Development, Test Management, Crowdsourced Testing Management

Prominent Clients: BBVA Bank, Shutterfly, Benefit Cosmetics, Verifone, Broadcom, Heartflow, Threads, PedidosYa, Pernod Ricard.

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#15) Altoros

Headquarters:  Pleasanton, California, USA
Revenue: US $15-30 M
No. of Employees: 300 – 500
Service cost/ package: Contact them for the quote.

Core Services: Software audit, Test automation, Usability testing, Functionality testing, Security testing and load testing, Compatibility testing, Localization testing, and dedicated QA teams.

Prominent Clients: Sony, Siemens, Toyota, Denso, iFit, Etherisc, Xively.

Verdict: Altoros provides a comprehensive range of software testing and quality assurance services, delivering robust, secure, and user-friendly solutions tailored to meet your unique needs. With their 22 years of industry experience, dedicated QA teams, and commitment to using advanced tools and practices, they ensure top-notch software testing delivery within your timeframe and budget.

Choose Altoros to experience the difference of partnering with a quality-oriented, cost-effective, and highly experienced service provider.

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#16) TestFort

Headquarters: Kharkiv, Ukraine
No. of Employees:100-200
Service cost/ package: Contact them for a quote.

Core Services: Dedicated QA Team, Mobile application testing, Web application testing, Automation Testing, Testing Automation, Performance testing, UI/UX Testing, QA consulting.

Prominent Clients: The Huffington Post, Skype, Distractify, Microsoft, SkyHook.
Verdict: It provides full-cycle QA services.

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#17) ScienceSoft

ScienceSoft is a QA hub with 34 years of experience in testing and 730+ successful QA projects. The vendor offers a full range of manual and automated testing services, including test planning, feasibility study for test automation, and integrating testing into CI/CD pipelines for faster delivery.

According to its website, ScienceSoft provides the following cooperation options:

• Outsourcing the entire testing function: This option is designed as an alternative to an in-house QA department. In testimonials, ScienceSoft’s clients consistently mention the vendor’s efficient QA management and proactive risk mitigation. They also point out ScienceSoft’s ability to efficiently allocate resources, meet deadlines, maintain clear documentation, and adapt to changing requirements with little to no managerial effort from the client’s side. ScienceSoft also reports a 0% turnover rate on its QA team, meaning you will work with the same people for the whole engagement duration. The vendor offers to reduce testing costs by up to 40% and release time by 18% within this service.
• Individual testers to strengthen your existing testing teams: This option helps to fill the gaps in specific testing skills or get extra hands during temporary overload. Within just 1–3 days from the initial request, ScienceSoft can deploy anywhere from 1 to 60 testers that would start working under your in-house QA.
• One-time testing: This service is great for a final once-over before launching software or for getting a fresh take on the quality of apps that are already up and running.

Headquarters: Texas, USA
Revenue: US $32 M
No. of Employees: 500–1000
Core Services: QA consulting and outsourcing, Test automation, Functional testing, Integration testing, Regression testing, Usability testing, Performance testing, Compatibility testing, Security testing, Code review.
Prominent Clients: Walmart, Nestle, eBay, NASA JPL, T-Mobile, Baxter, M&T Bank, etc

ScienceSoft Tests:

• Custom and platform-based software.
• SaaS products and enterprise software (ecommerce apps, ERP, CRM, SCM, BI, customer and vendor portals, etc.).
• Cloud-based, on-premises, and hybrid software.
• All architecture types, including microservices and SOA-based apps.
• Apps powered by advanced techs (IoT, big data, blockchain, AI/ML, AR/VR).

Verdict: Considering the fact that 62% of ScienceSoft’s revenue comes from engagements lasting 2+ years, this team is a perfect match for continuous sourcing. ISO 9001 and ISO 27001 certifications mean ScienceSoft can guarantee high service quality and complete security of its customers’ data.

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#18) Testlio

Headquarters: A distributed company with employees across 40+ different countries.
Revenue: US $30M – $50M
No. of Employees: 200-300

Core Services: Mobile Testing, Functional Testing, Usability Testing, Localization Testing, Payments Testing, Location Testing, Exploratory Testing, Regression Testing, Automated Testing, A11Y Testing, OTT Testing.

Prominent Clients: Paramount, Uber, Netflix, Microsoft, Athena Health, FOX, NBA, SAP, Microsoft, Keurig, Amazon, Wayfair.

Verdict: Top-quality testers around the globe; only 3% of testers are accepted into the network. Offers a variety of fully managed expert services models that combine on-demand and dedicated staffing of manual testers and test automation engineers.

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#19) Surf

Core Services: Software Testing, Automation Testing, QA consulting, Security and Mobile Testing, in-house QA automation framework.

Surf specializes in core services such as software testing, automation testing, QA consulting, security and mobile testing, and in-house QA automation framework. The company offers a wide range of managed testing services, dedicated quality assurance, and QA consulting, all backed by their extensive cross-domain knowledge.

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#20) ILoveMyQA

Founded in 2018, ILoveMyQA is a team of over 20 passionate QA experts from Canada and the US. As the leading software testing company in both countries, we specialize in helping small to mid-market businesses create and maintain top-notch QA processes. Our mission is to ensure your software is reliable, secure, and built with end-user satisfaction in mind—without breaking the bank.

Headquarters: Vancouver, Canada
No. of Employees: 10-50
Service cost/ package: Customizable and competitive pricing based on project needs.
Core Services: Manual Testing, Automation Testing, Performance Testing, Security Testing, Mobile Testing, and Web Testing
Prominent Clients: Payoneer, SalesRabbit, StoryFire, Bloomingdale’s, Skyscanner, and ViacomCBS

At ILoveMyQA, we’re more than just testers we’re your dedicated partners in success. We dig deep to uncover insights that drive 100% customer retention, offering continuous improvement and collaboration every step of the way. We don’t just find bugs; we help you build better products.

Verdict: This company is an outstanding software testing firm with over 20 skilled QA professionals from North America, offering cost-effective yet superior services. They specialize in various testing methodologies, including manual, automated, performance, security, mobile, and web testing, with pricing tailored to specific project requirements.

Serving distinguished clients such as Payoneer, SalesRabbit, and ViacomCBS, they focus on delivering dependable, secure software. Their dedication to customer satisfaction and ongoing enhancement makes them a reliable partner for small to mid-sized businesses aiming for exceptional QA without high costs.

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#21) Qualitest

Core Services: AI Testing, Performance Testing, Test Automation, Security Testing, Accessibility Testing, Blockchain Testing, SAP Testing, Salesforce Testing, IoT Assurance, Drone Assurance, Big Data Testing, DevOps Transformation, Medical Device Testing, PoS Testing, Game Testing

Service Cost/Package: Contact them for the quote.

Qualitest is the world’s largest, independent managed services provider of AI-led quality engineering and testing solutions. Qualitest help brands make the transition through every stage of the digital assurance journey, from moving beyond functional testing to adopting new innovations such as automation, AI, and crowd-sourced UX testing.

Qualitest delivers solutions that leverage deep, industry-specific knowledge for a variety of sectors, including technology, telecommunications, healthcare, finance, defense, media, utilities, and retail.

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#22) QAlified

Core Services: Functional testing, Automation and Performance Testing. QA Outsourcing and Managed Testing Services. 

Service cost/ package: Flexible pricing options.

QAlified is a software testing and quality assurance company specialized in solving quality problems by reducing risks, maximizing efficiency and strengthening organizations.

An independent partner to evaluate software quality with experience in different technologies for any type of software.

With more than 600 projects in Banking, Financial services, Government (Public sector), Healthcare and Information Technology.

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#23) BugRaptors

Established in 2016, BugRaptors is one of the best software testing companies transforming the tech landscape. With experience of serving numerous Fortune 500 clients and SMEs across the globe, BugRaptors provides a dynamic range of manual and test automation solutions, including our own set of automated/ai-powered tools: MoboRaptors, RaptorVista and BugBot.

Earning many awards and recognitions for excellence in QA, BugRaptors has its own test center of excellence established to enable businesses with digital goals succeed on their long-term quality objectives.

Corporate Office: California, USA
Test Labs: Mohali, India
No. of Employees: 250+
Service Cost/Package: Customizable and competitive pricing based on project needs.

Core Services: Functional Testing, Mobile Testing, Performance Testing, Load Testing, Compatibility Testing, AI Testing, Cloud Testing, QA Consulting, Web Testing, Security Testing, and AI-enabled Test Automation Solutions.

Prominent Clients: Mahindra, Adani, Flipkart, Cogitate, Allego, WinZO, Corel, Swaraj

Verdict: With a growth rate of 200 percent and a 98 percent client satisfaction rate, BugRaptors is a globally recognized software testing and QA company. The brand specializes in ensuring the reliability and quality of software applications, with a dedicated team of 200+ ISTQB certified testers.

BugRaptors has expanded its geographical presence to diverse locations including Australia, the United Kingdom, and the United States, catering to the digital objectives of more than 10 different industry verticals. The company’s customizable and competitive pricing, along with its dedication to customer success, make it a reliable partner for businesses of all sizes aiming to achieve their digital quality objectives.

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Also, check – Best Manual Testing Services

Corporate Companies Providing QA Services

List of corporate companies that are into all IT services including testing services:

There are many big corporate companies providing testing services along with other core software development services. Here is a list of such top corporate QA Testing companies.

#1) QASource

Core Services: Automation Testing, API Testing, Functional Testing, Mobile Testing, Salesforce Testing, DevOps services, and dedicated testing teams.

QASource is a leading software engineering and QA services company providing a full suite of QA testing services to help you release better software faster.

With a team of over 1100+ engineering experts located in both offshore and nearshore locations, it has been providing software testing services to help Fortune 500 companies and startups since 2002. Some of its clients include Ford, Oracle, Prudential, eBay, Target, Facebook, and IBM.

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#2) Aspire Systems

Core Services: Enterprise Application Testing, Test Automation, API/Microservices Testing, Performance Testing, Functional Testing, Test Consulting, DevOps Testing, Mobile Testing, AI-led Testing, Managed Testing Services, User Acceptance Testing, Usability Testing, System Integration Testing, SaaS/Cloud Testing.

Aspire Systems is a global technology firm that helps accelerate application delivery using Hyper-Testing, a multi-layered testing strategy that includes best practices in Agile, Continuous Testing, and DevOps.

Over the last 20 years, Aspire has been serving customers across industries with a focus on Software, Hi-tech, Retail, Insurance, Banks, and Financial Services. The company currently has 150+ customers globally.

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#3) Itransition

Core Services: QA, Testing, Consulting, App development, DevOps.

Full-cycle Independent QA and Managed testing Services for web, desktop, mobile apps, server-side systems, and devices.

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#4) Oxagile

Core Services: Software Testing, Automation Testing, QA consulting, Security and Mobile Testing, in-house QA automation framework.

Oxagile is a full-fledged software testing company with a comprehensive service offering that includes managed testing services, dedicated quality assurance, and QA consulting. Underpinned by cross-domain knowledge, the firm demonstrates its excellence in testing complex high-load solutions.

Also, Oxagile’s proprietary automated testing framework also allows for cutting testing costs, accelerating time to market, and improving software quality.

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#5) QAlified

Core Services: Application Testing, Performance Testing, Test Automation, Security Testing, Usability Testing, Accessibility Testing, Consulting, and Workshops.

QAlified is a software testing and quality assurance company specializing in solving quality problems by reducing risks, maximizing efficiency, and strengthening organizations.

An independent partner to evaluate software quality with experience in different technologies for any type of software.

They have more than 100 worldwide clients and 600 projects in Financial Services, Insurance, Information Technology, Healthcare, and E-commerce.

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Best Software Testing Companies In India

Indian software testing companies have made a global mark with excellent services. Here is the list of a few companies providing excellent QA testing services to global clients.

#1) TESTRIQ QA Lab

An independent Software Test Consulting and Services company. Powered by a workforce of many proficient QA professionals with an average of 12+ years of experience in the field of software testing, they aim to provide a complete range of software testing services, while keeping customer satisfaction at its core.

Headquarters: Mumbai, IN
No. of Employees: 11-50
Service Cost/Package: Contact them for the quote

Core Services: Software Testing, Quality Assurance, Independent Software Verification and Validation, Managed Software Testing Services.

Verdict: The Industry-Leading Software Startup with 30+ proficient ISTQB Certified QA professionals with an average of 15+ years of experience in the software testing field, with a complete range of software testing services.

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#2) Aspire Systems

Aspire Systems is a global technology firm that helps accelerate application delivery using Hyper-Testing, a multi-layered testing strategy that includes best practices in Agile, Continuous Testing, and DevOps.

We offer a wide range of testing services including Managed Testing Services. Our core services cover all types of testing ranging from Functional Testing, API Testing, and Test Automation to Performance Testing and Usability Testing. Our specialized services cover testing for Mobile, SOA, Cloud, and Microservices with a focus on AI-led Testing.

Over the last 20 years, we have been serving customers across industries with a focus on Software, Hi-tech, Retail, Insurance, Banks, and Financial Services. The company currently has 150+ customers globally.

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#3) Indium Software

Indium Software is a global leader in QA testing services with over 2 decades of experience. They offer a wide range of software testing services for next-gen AI/ML applications. The company has proven experience and expertise working with SMEs, large-scale enterprises, and Fortune 500 clients over the last 20 years.

Indium has been serving clients across several industries including Banking, Technology, Healthcare, Life sciences, Retail, and Education through flexible and scalable delivery models. Indium’s IP-led automation framework iSAFE, helps customers in fulfilling their test automation needs.

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Other notable testing providers from India:

#4) QA InfoTech
#5) Cigniti
#6) Thinksoft Global
#7) CredibleSoft
#8) PureTesting
#9) 360Logica
#10) QAHub