Top 10 BEST Software Testing Companies In USA [2023 Ranking]

List & Comparison of the Top Software Testing Companies in the USA. Select the Best QA Vendor and  Consultants For Your QA Services From Our Selected Top Companies from Different Parts Of the United States.

Outsourcing Software Testing Services to an American QA company provides a lot of benefits, like saving time on setting up a QA team and reducing the product’s time to market.

Sometimes well-established companies with an in-house QA team also hire a Software Testing Company to get a quality product.

Top Software Testing Companies in USA

Fact Check: According to IBISWorld, the market size of Software Testing Services in the US is $4.1 Bn. It has grown 3.8% per year from 2014 to 2021 and it is expected to increase by 4.9% in the year 2022.
The graph below shows the number of businesses in Software Testing Services in the US.

Stats on Software Testing Services In US

[image source]

An independent American testing organization will help you to improve quality standards and deliver on time.

Below are the reasons to hire an independent Software Testing Company in the USA.

  • It eliminates the need to set up the test environment.
  • To reduce the time to market.
  • Your product will get tested with the latest testing practices and resources that are skilled in new technologies.
  • Eliminates the need to hire QA personnel.
  • The independent testing team will help you to deliver a product that will meet customer expectations.
  • If your business is located in the US, then using an American QA company will help you avoid time zone and communication issues.
Pro Tip: While selecting a software testing company you should consider the type of testing that the company offers, i.e. offshore testing or onshore testing.

According to this survey done by QualiTest on Software Testing, a majority of people believe that on-shore testing eliminates communication problems.

=>> Contact us to suggest a listing here.

List of Top Software Testing Companies in USA

Enlisted below are some of the most popular QA Vendors and Consultants from the USA.

You can also review services from these companies and let us know about your experience so we can always keep this list up-to-date.

  1. Mindful QA
  2. QualityLogic
  3. QASource
  4. Global App Testing
  5. ScienceSoft
  6. QA Wolf
  7. QA Mentor
  8. Sauce Labs
  9. BugRaptors
  10. LogiGear Corporation
  11. QArea
  12. A1QA
  13. TestMatick
  14. Fluid Attacks
  15. Testbytes
  16. PFLB

Comparison of Top QA Companies in USA

LocationsFounded InEmployeesCore ServicesRevenuePricing
Mindful QA

100% Located in USA.201850 - 200Manual Testing,
Automated Testing, Performance Testing,
API Testing,
Mobile & Web Testing.
--On-demand hourly rates (Contact for pricing).

Idaho, USA.198651 – 200Mobile App Testing, Web App Testing, API Testing, etc.$5M - $10MContact for pricing

QASource Logo
20021400-1700Automation Testing,
Manual Testing,
API Testing,
Security Testing,
Performance Testing.
$40-60MContact them for Pricing
Global App Testing

Global App Testing
London, UK201350-200Crowdtesting, Mobile App Testing, Localized Testing, Exploratory Testing, Test Case Execution, Functional Testing.$9 MContact for pricing

Headquartered in the US.
Offices in Finland, Latvia, Lithuania, Poland, UAE.
1989700+Manual Testing, Automated Testing, QA Outsourcing, API Testing, Mobile & Web Testing, Functional Testing, Usability Testing, Performance Testing, Security Testing.$30 MT&M or fixed price.
QA Wolf

QA Wolf Logo
Seattle, WA201910 – 100Gets your team to 80% end-to-end automated test coverage in 3 months.$1M – $10MBased on the size of your team, not hourly.
QA Mentor

New York,
New Jersey, Brooklyn,
2010201 - 500Mobile/ Browser Compatibility Testing, Automation Testing, Load/ Stress/ Performance Testing,
Regression Testing, etc.
$5 - $6 MFunctional & Compatibility Testing: $12/tester hour
Technical Testing: $15/tester hour
Automation Testing: $19/tester hour
Performance & Security Testing: $20/tester hour
Sauce Labs

2008201 - 500Real Device Cloud,
Adding Emulators & Simulators, Cross-browser Testing,
Visual Testing, etc.
$50 - $51 MLive Testing: $19/month
Virtual Cloud: $149/month
Real Device Cloud: $349/month

2016501 - 1000Standardized QA Services, Automation Testing Services, Specialized QA Services,
Test Consultation Services.
$4 - $5 MAs per the reviews, BugRaptors has an hourly rate of $10-$14.

Let’s Explore!!

#1) Mindful QA (Recommended)


Mindful QA provides Software Testing Services to businesses and non-profits of any size. They offer flexible QA services, whether you need 20 hours or full-time.

Headquarters: Los Angeles, CA (All workers located in America)
Founded: 2018
Employees: 50 – 200

Core Services: Manual Testing, Automated Testing, Performance Testing, API Testing, Mobile App Testing, Software Testing, Website Testing, and much more.

Other Services: Express Testing, Regression Testing, Agile Consulting, Backup Coverage, QA for Digital Agencies, User Experience Consulting, QA Recruiting, and much more.

Clients: Google, Microsoft, Zillow, Clorox, H&R Block, Taco Bell, etc.


  • All testers are located in America.
  • 100% of testers are QA experts with years of experience and no junior testers.
  • Flexible, on-demand services with a minimum of 20 hours only.
  • Straightforward hourly prices, with no long-term contract requirements.
  • Carbon neutral company that gives 10% of profits to charity.

#2) QualityLogic


QualityLogic provides Software Testing Services to businesses of any size. It has test tools for the Smart Energy market and Imaging market. It provides a wide range of testing services from QA assessment and planning to various testing services.

Headquarters: Idaho, USA.
Founded in: 1986
Employees: 51 – 200
Revenue: $5 – $10 M
Core Services: Mobile App Testing, Web App Testing, API Testing, etc.
Clients: Verizon Wireless, Cisco, OpenADR, Hawaiian Electric, etc.


  • It has a flexible service model that can provide a tailored approach to support agile and lean development environments.
  • It provides experienced agile QA services.
  • It will provide Test solutions and Test tools according to the industry standards.
  • It supports Continuous Integration and Agile Development Practices.

#3) QASource


QASource provides QA services to multiple industries like Cyber Security, Legal, Healthcare, Finance, Retail, Startup, etc. It will also help you to meet your Salesforce Development Requirements. Also, the outsourced team will seamlessly get integrated with your DevOps practice.

Headquarters: Pleasanton, CA
Founded in: 2002
Employees: 1400 – 1700
Revenue: $40 – $60 M
Core Services: Automation Testing, Manual Testing, API Testing, Mobile QA, Security Testing, Performance Testing, QA Analysis, Salesforce Testing, etc.
Clients: eBay, Ford, TechSmith, IBM, Facebook, etc.


  • The team has a deep knowledge of different user scenarios.
  • QASource test automation will give you faster release cycles.
  • The team has extensive domain knowledge.
  • It has expertise in various technologies such as Java, MySQL, VBScript, Apache, etc.

#4) Global App Testing

Global App Testing

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.

Headquarters: London, UK
Founded in: 2013
Employees: 50-200
Revenue: $9 M
Core Services: Crowdtesting, Mobile App Testing, Localized Testing, Exploratory Testing, Test Case Execution, Functional Testing.
Clients: Facebook, Google, Microsoft, Spotify, Instagram, Depop, Craigslist, Verizon, Citrix, Evernote.


  • Localized App Testing – Test with real users (60,000+ vetted testers) on real devices around the world (in 189+ countries worldwide)
  • Exploratory testing and test case execution – Receive actionable results in 1 hour and up to 48 hours and run customized tests in as little as 30 minutes.
  • Rapid test execution directly from the tools you already use – Our app testing solutions are engineered to integrate seamlessly with the DevOps and CI/CD tools you already use and enhance your existing workflows.

#5) ScienceSoft


Headquarters: McKinney, Texas, US. Offices: Atlanta (GA), UAE, Finland, Latvia, Lithuania, Poland.
Founded in: 1989
Company size: 700+ employees
Revenue: $32 M
Major Clients: Walmart, Nestle, eBay, NASA JPL, T-Mobile, Baxter, etc.

A provider with 33 years of experience, ScienceSoft helps companies get bug-free software by testing throughout all stages of development.

The vendor’s clients manage to reduce testing costs by up to 40% with ScienceSoft’s optimal test coverage, reasonable test automation, reusable testing frameworks and tools. Software companies can expect up to 18% faster time-to-market for their products by relying on ScienceSoft’s best testing practices.

Core Testing and QA Services:

  • QA consulting
  • Functional testing (manual and automated)
  • Regression testing
  • Integration testing
  • System testing
  • Performance (load, stress, scalability, stability) testing
  • Compatibility and accessibility testing
  • Security testing (penetration testing, vulnerability assessment, code review, compliance testing)
  • Usability testing

Service Timelines: 1-3 days to dive into the project; keeping pace with 2-week development iterations; 1-2 hours to validate urgent software fixes.

ScienceSoft’s Features:

  • 730+ successful testing projects.
  • 80% of test engineers have 10+ years of experience.
  • Mature quality and information security management systems confirmed by ISO 9001 and ISO 27001 certifications.
  • Testing transparency is ensured by a comprehensive set of test artifacts, including a test strategy and a test plan, reports on the identified defects with clear defect descriptions, reports on KPIs fulfillment, testing summary reports, etc.
  • ScienceSoft USA Corporation is listed among The Americas’ Fastest-Growing Companies in 2022 by the Financial Times.

#6) QA Wolf

QA Wolf

Locations: Seattle, WA
Founded in: 2019
Employees: 10 – 100
Core Services: Gets your team to 80% end-to-end automated test coverage in 3 months
Revenue: $1M – $10M
Pricing: Based on the size of your team, not hourly.

QA Wolf is a VC-backed startup that separates itself from other outsourced firms by doing two things drastically differently: (1) they get engineering teams to 80% end-to-end coverage within 3 months and (2) they charge a flat rate based on the size of your team and not hourly or per test created.


  • 80% end-to-end test coverage: QA Wolf gets engineering teams to 80% end-to-end automated test coverage within 12-16 weeks. This is done by the QA Wolf team writing and maintaining your tests so your developers are freed up to build new features.
  • Unlimited tests and test runs: A partnership with QA Wolf includes full and unlimited access to their QA Wolf platform. This includes unlimited tests and test runs as well as access for all of your team members.
  • 100% parallelization: All QA Wolf tests run in 100% parallel. This means you’ll have test results in under 5 minutes regardless of the number of tests you are running.
  • No vendor lock-in: The QA Wolf platform is open source and built on top of Microsoft’s Playwright – this means there’s zero vendor lock-in. You own all of the code they create and can export it at any time.
  • Full web application testing: If it can be accessed via the web, it can be tested by QA Wolf. This includes APIs, Integrations, iFrames, Emails, SMS, Salesforce, Multi-tab, Chrome Extensions, Auth0/Magic Links, Drag & Drop, and much more.

#7) QA Mentor


QA Mentor is a multi-award winning, CMMI Level 3 appraised ISO certified leading software testing company headquartered in New York with 15 offices around the world offering 32 quality assurance testing services.

The company supports 437 clients from startups to Fortune 500 organizations in 28 countries within nine different industries.

Headquarters: New York
Founded in: 2010
Employees: 201 – 500
Revenue: $10+ M

Core Services: Mobile Testing, Functional Testing, Automation Testing, Compatibility Testing, Load/Stress/Performance Testing, Security/Penetration Testing, Crowdsourced Testing, Regression Testing, Migration Testing, Database Testing, API Testing, AI Testing, Internet of Things Testing, Big Data Testing.

Clients: HSBC, Citi, Experian, Amazon, Zyto, BrainMatch, ChefMod, ITCInfotech, etc.


  • Free Security Assessment
  • Free Performance Assessment
  • Free QA Audit and Process Improvement Assessment
  • Economical services and packages
  • Flexible engagement models
  • 24/7 operation covering all time zones and worldwide locations.
  • 12,000 crowdsourced testers covering 82 countries in the world
  • 50 + automation tools and solutions offered for clients and customers
  • 7 unique proprietary Test Methodologies and 5 Automation frameworks
  • 2 Weeks Free Trial
=> Visit QA Mentor Website and schedule a free 1-hour consultation with QA Experts

#8) Sauce Labs


Sauce Labs provides a cloud-based test platform. It performs live, automated, and continuous testing of web and mobile apps. It will always be on the infrastructure. It provides services to businesses of any size.

Headquarters: California, USA
Founded in: 2008
Employees: 201 – 500
Revenue: $50 – $51 M
Core Services: Real Device Cloud, Adding Emulators & Simulators, Cross-browser Testing, Visual Testing, Test Analytics, etc.
Clients: VISA, Splunk, Walmart, Zillow.


  • It provides a comprehensive continuous testing cloud.
  • It offers one unified platform for Testing functionality, Front-end performance, and Visual regressions.
  • It is scalable for CI/CD.

Official URL: Sauce Labs

#9) BugRaptors


BugRaptors provide various services from consulting to support/testing services. It provides exceptional quality by implementing the latest tools and technologies. It can work with various test models such as Sequential and Agile. It supports all types of mobile applications i.e. native, web, or hybrid.

Headquarters: California, USA
Founded in: 2016
Employees: 501 – 1000
Revenue: $4 – $5 M
Core Services: Standardized QA Services, Automation Testing Services, Specialized QA Services, and Test Consultation Services.
Clients: Key Rider, WayBack Machine, SimTutor, Wherefor, 2toLead, etc.


  • It supports more than 100 physical mobile devices.
  • It has experience of testing more than 252 websites and more than 500 mobile apps.
  • BugRaptors ensure a 30% reduction in time to market your products.

Official URL: BugRaptors

#10) LogiGear Corporation


LogiGear has 25 years of experience in Software Testing. It provides services to startups as well as enterprises. LogiGear provides solutions for Mobile Testing, Test Architect & Test Automation, Selenium Automation, and Continuous Testing.

Headquarters: California, USA
Founded in: 1994
Employees: 501 – 1000
Revenue: $7 – $8 M
Core Services: API Testing, Game Testing, Functional Testing, Automated Testing, Load, and Performance Testing.
Clients: Disney, Cisco, Evernote, ADP, Amazon, Amway, LinkedIn, McAfee, etc.


  • LogiGear will provide flexible, reliable, and cost-effective solutions.
  • For time-critical projects, it can provide expert manual testing services.
  • It provides offshore development and testing.

Official URL: LogiGear Corporation

#11) QArea


QArea outsources the software lifecycle services from designing to development and testing. It offers its services to small, medium, and large size businesses and startups. It is a software development company with 18 years of experience in developing software.

Headquarters: California, USA
Founded in: 2010
Employees: 201 – 500
Revenue: $30 – $31 M
Core Services: Custom Software Development, Software Testing & QA, Web Application Development, Mobile App Development, Website Development, IT Consulting, etc.
Clients: Microsoft, Skype, eBay, etc.


  • QArea provides full transparency and has no black boxes through clear communication about what is going behind the scenes.
  • It performs automatic code quality assessment and time tracking to provide you with details about your dedicated development team and code reliability.
  • It has completed more than 800 projects.

Official URL: QArea

#12) A1QA


A1QA provides Software QA and Testing Services to multiple industries. It works on values such as delivering value, constant innovation, collaboration & teamwork, etc. It can work in adjustable time zones. It offers a full package of SQA services.

Headquarters: Colorado, USA.
Founded in: 2003
Employees: 501 – 1000
Revenue: $10 M
Core Services: Full-cycle Testing, Consulting, Web Applications, Automation, etc.
Clients: Adidas, QIWI, Pearson, Kaspersky, InterCall, Equisys, ForexClub, etc.


  • A1QA has successfully completed 1500 projects.
  • It has 15 years of experience in providing Software Testing Services.
  • It has expertise in multiple domains.
  • Adjustable time zones.
  • It provides a full package of SQA services.

Official URL: A1QA

#13) TestMatick


TestMatick provides testing services with features like Mobility & Flexibility, no bureaucracy, pleasant discounts, etc. It provides services to various industries like finance, banking, education, etc.

It offers a solution that is a perfect mixture of technical skills of the team, understanding of the business process, and special industry knowledge.

Headquarters: New York, USA.
Founded in: 2009
Employees: 51 – 200
Revenue: $1 – $2 M
Core Services: Mobile Testing, SEO Testing Services, Functional Testing, Automated Testing, Game Testing, etc.
Clients: Hubrick, Subscribe Pro, Negotiation, Dahmakan, VeraCloud, etc.


  • TestMatick can provide more than 20 types of QA services.
  • Testing services can start within 24 hours.
  • It provides professionally built testing processes and methodologies.

Official URL: TestMatick

#14) Fluid Attacks


Fluid Attacks provides IT security services. It can perform Continuous hacking and One-shot hacking. It performs security testing by attacking web, APIs, mobile apps, servers, networks, and IoT devices.

Headquarters: California, USA
Founded in: 2001
Employees: 11 – 50
Revenue: $1.5 Million
Core Services: One-shot Hacking, Continuous Hacking, Ethical Hacking, and Pen Testing Services.
Clients: Sura Asset Management, Mazda, Manpower, RSA, etc.


  • Fluid Attacks work with three principles i.e. honesty, collaborative efforts, and discipline.
  • All the identified security risks will be communicated to you, hence you will get a prompt, efficient, and effective remediation.
  • Assert i.e., an automated closing engine will be used to find out if the vulnerability is open.

Official URL: Fluid Attacks

#15) Testbytes


Testbytes is a Software Testing and QA consulting company that offers Game Testing, Mobile Testing, Security Testing, and a variety of testing services. Its methodologies and processes will be based on CMMI, ISO, and Agile best practices.

Headquarters: New York, USA
Founded in: 2013
Employees: 51 – 200
Revenue: $19 – $20 M
Core Services: Mobile App Testing, Web App Testing, Game Testing, Automation Testing, and Security Testing.
Clients: Hey Digital, Sixth Gear, Fixle, Greenno Market, Weevil, etc.


  • Testbytes is experienced in testing 500 sites and 300 mobile apps.
  • It has more than 160 clients worldwide.
  • These services are available to multiple industries like Banking & Finance, Education & e-Learning, Government, etc.

Official URL: Testbytes

#16) PFLB


PFLB helps businesses test the performance of their applications and resolve performance bottlenecks such as ill-performing API calls, slow database queries, and more.

The company creates a next-generation load testing platform,, that enables developers to release high-performance software faster. Headquartered in Silicon Valley, the PFLB has delivery centres in the US, Hungary, and Indonesia.

Headquarters: Menlo Park
Founded: 2008
Employees: 400+

Core Services: Performance Testing and Performance Engineering.
Other Services: Adopting performance testing within a software release train, Load Testing, Stress Testing, Data Volume Testing, SQL Tuning, Java Profiling, Code Review, Data Masking, Data Generation, Developing Mocks and Emulators, and hardware performance testing. Adopting, LoadRunner, JMeter, K6.

Clients: Tinder, Moody’s, Illumina, Splunk, Udacity, SolarWinds, Samsung, RiptLabs, Raiffeisen Bank.


  • Quick Load Testing: It is the best deal for website owners. Includes a four-day fixed-price testing project with two iterations of load testing and a 1-month subscription to With the subscription, you’ll have access to the load testing infrastructure in the cloud and be able to do so for future test runs by your internal team.
  • Citrix Load Testing with JMeter: The only solution on the market that enables open-source tools for efficient load testing of the software behind Citrix.
  • Mobile App Performance Testing: The complex solution for testing both the mobile app back-end and the front-end in the lab.
  • Performance Benchmarking: Benchmark your innovative software or hardware technology against top competitors and learn how to win.
  • Performance Testing Strategies: Unlike many others, we pay significant attention to developing a testing methodology, which describes all necessary load profiles, system iterations with external services, requirements for testing environments, and SLAs for response times and hardware usage. In many cases, this is how a client starts working with PFLB.


There can be many reasons to look for an American Software Testing Company. It may be a quest for QA expertise or a shorter time to market. In this article, we have reviewed and compared the top QA companies in the USA to help you find the right one.

Mindful QA, Sauce Labs, QA Source, QA Mentor, Bug Raptors, and ScienceSoft are the top Software Testing Service providers in the USA.

We recommend Mindful QA services. They provide a variety of on-demand testing services with reliable testers available quickly.

Sauce Labs provides a cloud-based scalable solution. QA Source team has expertise in multiple technologies. QA Mentor provides 30 software testing services. Bug Raptors can work with various test models and ScienceSoft will provide you a team with relevant domain expertise.

=>> Contact us to suggest a listing here.

We hope this article helped you find the best Software Testing Service provider for your requirements!!

Review Process:

  • Time taken to research this article: 20 Hours.
  • Total companies researched: 18
  • Top companies shortlisted: 13