Top QA & Software Testing Firms

Releases that break checkout, a mobile app that crashes on older Android phones, an API that slows under load: these are the failures QA and software testing companies are paid to catch first. They plan test strategy, write and run manual test cases, build automated suites in Selenium, Playwright, Cypress or Appium, and run performance, security and accessibility tests. Software teams hire them when developers are testing their own code, when release cycles are speeding up, before a major launch, or when an audit demands documented testing.

When comparing the firms below, look at the kinds of applications they test, the automation frameworks they work in, and whether testers join your sprints or work from a separate queue.

How this list is built

We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

4,562 Companies

List of the Best QA & Software Testing Agencies

Yaya
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Fewer than 30% of digital transformations achieve success. In the UK, 50% of individuals report that the new tools introduced after a digital transformation haven't improved their work, and may even complicate it. What causes this? Furthermore, 58% of those surveyed believe that the tools they use a
Highlights
$25,000+
Min Project Size
2-9
Employees
London, England, Gb
Services Provided+4 Services
15% Mobile App Development (iOS & Android)
30% Custom Web Application Development
5% QA & Software Testing
15% Product UX Strategy
AI Summary
“Yaya enhances digital transformation success by simplifying work tools, aligning user needs with strategic goals, improving adoption, and boosting productivity across diverse industries through user-centered design.”
Ergoseo
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🔥 WordPress Speed Enhancement (90+);🔥 WooCommerce Performance Improvement (User Experience, Speed Ratings, Database Acceleration);🔥 Addressing Core Web Vitals (LCP, CLS, FCP, INP, TTFB);🔥 Database Optimization and Maintenance;🔥 Resolving Search Console Issues;🔥 Local and Global SEO;🔥 Recovery
Highlights
$50-99/hr
Avg Hourly Rate
2-9
Employees
Torrance, California, Us
Services Provided+8 Services
21% Custom Web Application Development
4% QA & Software Testing
5% UX Audit & Heuristic Evaluation
10% Landing Page Design
AI Summary
“Ergoseo specializes in enhancing WordPress and WooCommerce performance, optimizing databases, improving web vitals, SEO strategies, security audits, malware cleanup, and custom theme and landing page development.”
Celect Studios
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Established in 2017, Celect Studios is recognized as a premier IT firm in the United States, consistently advancing the field of app development. The company focuses on maximizing technology's potential by creating outstanding mobile applications, unique IT solutions, engaging gaming platforms, and
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Services Provided+7 Services
30% Mobile App Development (iOS & Android)
10% Machine Learning Model Development
10% QA & Software Testing
10% Low-Code MVP Development
AI Summary
“Celect Studios excels in Software Development, offering Mobile App Development (iOS & Android), E-Commerce Development, and Legacy System Modernization. Their skilled team delivers innovative applications and enterprise-level solutions with advanced technology integration.”
Meenarsoft Private Limited
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We offer software development and consulting services specializing in payment software. If you are developing an EMV solution, need certification expertise, require integration with a processor or gateway, or want to connect a terminal with a POS system, reach out to us. Our team also has expertise
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+3 Services
13% Mobile App Development (iOS & Android)
18% Custom Web Application Development
5% E-Commerce Development
15% QA & Software Testing
AI Summary
“Meenarsoft Private Limited specializes in payment software development, certification, and integration, alongside AI, mobile, web, and embedded systems services, offering comprehensive technology solutions.”
mDevelopers
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Your client-centered software development partner! At mDevelopers, we consider ourselves more than just a software development company; we are your reliable partner focused on transforming your ideas into reality! Since our establishment in 2010, we have been dedicated to providing exceptional softw
Highlights
$25,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Warszawa, Masovian, Pl
Services Provided+6 Services
13% Custom Web Application Development
13% Mobile App Development (iOS & Android)
7% Backend Development
7% Frontend Development
AI Summary
“mDevelopers is a client-focused software development partner established in 2010, offering expert services across UX/UI, web, mobile, AI, and business automation for diverse sectors.”
Pisol
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We are a web development and digital integration firm with more than 20 years of experience. Our team is made up of talented experts who excel at efficiently delivering tailored solutions for our clients. Our extensive expertise allows us to swiftly and flexibly tackle challenges with a personalized
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Buenos Aires, Ar
Services Provided+3 Services
23% Custom Web Application Development
18% API Development & Integration
5% E-Commerce Development
5% QA & Software Testing
AI Summary
“Pisol is a web development and digital integration firm with over 20 years' expertise, delivering tailored solutions in web, mobile apps, platforms, and API services through comprehensive, flexible processes.”
AAA
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Shut down
Highlights
$50,000+
Min Project Size
10-49
Employees
New York, New York, Us
Services Provided+3 Services
20% Mobile App Development (iOS & Android)
15% QA & Software Testing
15% Custom Web Application Development
15% Machine Learning Model Development
AI Summary
“AAA was a company that has ceased operations. No additional information on its services or activities is available to provide a broader summary.”
Energize Global Services
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Energize Global Services (EGS) was established with the goal of enhancing value and boosting revenues for its clients. With over 15 years of expertise in the IT sector, along with a network of global partners and clients, EGS stands as a prominent and innovative technology firm dedicated to providin
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
250-999
Employees
Yerevan, Am
Services Provided+12 Services
7% Code Review & Technical Audits
10% QA & Software Testing
17% Custom Web Application Development
8% Database Administration & Optimization
AI Summary
“Energize Global Services is an experienced technology firm specializing in software solutions for banking and financial management, delivering innovative payment systems and applications worldwide.”
Facile Consulting Private Limited
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Facile Consulting is a modern software solutions company located in Bangalore, often referred to as India’s Silicon Valley, that provides state-of-the-art products and services to clients worldwide. We pride ourselves on innovation, delivering high-quality results that surpass expectations and are p
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Bengaluru, Karnataka, In
Services Provided+5 Services
20% Other IT Consulting and SI
10% QA & Software Testing
10% Software Development Services
10% E-Commerce Development
AI Summary
“Facile Consulting Private Limited excels in software development with services including custom web applications, mobile app development, and e-commerce solutions. Their expertise in backend and frontend technologies supports full-stack development tailored to client needs.”
Digital Humanity
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Digital Humanity is a comprehensive software development firm located in South Africa, offering tailored digital solutions that blend creativity, strategy, and cutting-edge technology. Our expertise includes UI/UX design, web and mobile application development, AI automation, machine learning integr
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Pretoria, Gauteng, Za
Services Provided+2 Services
20% Mobile App Development (iOS & Android)
10% QA & Software Testing
20% Custom Web Application Development
20% Product UX Strategy
AI Summary
“Digital Humanity is a South African software firm delivering bespoke digital solutions encompassing development, AI integration, UX/UI design, digital marketing, and consulting for business growth.”

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