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.

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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

CodeBiceps
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Code Biceps is a software development firm that collaborates with startups and expanding businesses to create dependable, production-ready software. Our emphasis is on building systems that function effectively in real-world scenarios, not just in demonstrations. This encompasses stable backends, we
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Bareilly, Uttar Pradesh, In
Services Provided+4 Services
8% API Development & Integration
3% ERP & CRM Development
6% QA & Software Testing
6% Custom Web Application Development
AI Summary
“CodeBiceps partners with startups and SMEs to deliver reliable, scalable software solutions through phased development, thorough testing, and ongoing support tailored to real-world application needs.”
A-team
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A-Team is a web design and development firm located in Kyiv, Ukraine. With over 16 years of expertise in technologies such as Vue.JS, Python, PHP7, MySQL, jAPI, Laravel 8, AI, and various frameworks, we are dedicated to making the web serve your needs. Additionally, our team has successfully mentore
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Kyiv, Ua
Services Provided+4 Services
17% Custom Web Application Development
14% E-Commerce Development
3% QA & Software Testing
13% Mobile App UI Design
AI Summary
“A-Team, based in Kyiv, Ukraine, offers over 16 years of expertise in web design and development, utilizing diverse technologies to deliver customized, effective solutions that boost online revenue.”
multisyn tech
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Transforming Concepts into Enterprises with Multisyn Tech's MVP-Focused Innovation At Multisyn Tech, we address your concerns by providing a wide array of services, including MVP development, custom software solutions, SaaS offerings, mobile and hybrid app development, dedicated development teams,
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Dubai, Dubayy, Ae
Services Provided+4 Services
10% Custom Web Application Development
14% Mobile App Development (iOS & Android)
8% SaaS Product Development
2% QA & Software Testing
AI Summary
“Multisyn Tech specializes in MVP-driven software and app development, offering custom solutions, SaaS, UI/UX design, and consulting across diverse industries to transform ideas into successful enterprises.”
5Hz
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5Hz is a technology partner that offers digital solutions aimed at fostering growth, automation, and enduring customer relationships. We focus on creating comprehensive digital ecosystems by merging advanced technologies with significant expertise in web development, blockchain engineering, and top-
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Lviv, Ua
Services Provided+9 Services
10% Custom Web Application Development
4% Mobile App Development (iOS & Android)
8% E-Commerce Development
1% Legacy System Modernization
AI Summary
“5Hz is a trusted technology partner delivering integrated digital solutions including web and mobile development, AI consulting, UI/UX design, and branding to drive growth and automation globally.”
Yashco Systems
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*** Celebrating 19 Remarkable Years in the IT Sector *** From startups to Fortune 500 firms, Yashco Systems is your comprehensive solution for all software requirements. As a rapidly expanding full-service company, we provide IT services, consulting, and digital solutions. We develop innovative and
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Hilliard, Ohio, Us
Services Provided+7 Services
8% Custom Web Application Development
5% Mobile App Development (iOS & Android)
5% E-Commerce Development
5% Backend Development
AI Summary
“Yashco Systems, a 19-year-old IT firm, offers comprehensive software services, consulting, and digital solutions, recognized for rapid growth and employee satisfaction across diverse industries.”
Metorox Software Solutions L.L.C.
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Metorox Software LLC is a software and digital marketing firm located in Draper, Utah, dedicated to assisting small businesses in transforming their ideas into secure and reliable technology. We focus on creating customized software solutions, which include WordPress plugins, SaaS platforms, and boo
Highlights
$1,000+
Min Project Size
Services Provided
40% Custom Web Application Development
10% QA & Software Testing
35% Search Engine Optimization (SEO)
15% Digital Strategy
AI Summary
“Metorox Software Solutions L.L.C. delivers secure, customized software and digital marketing services, including web development and automation, supporting diverse small businesses in enhancing efficiency and growth.”
Softellar
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Softellar is a custom software development and IT staff augmentation company located in the EU. We are committed to providing high-quality solutions that cater to the distinct needs of our clients. We take pride in our exceptional service and support, focusing on establishing enduring relationships
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Warszawa, Masovian, Pl
Services Provided+4 Services
5% Legacy System Modernization
12% Custom Web Application Development
8% API Development & Integration
5% Mobile App Development (iOS & Android)
AI Summary
“Softellar is a Central European IT company offering custom software development, data strategy consulting, AI-driven automation, and staff augmentation with flexible, client-focused solutions.”
Sphinx Jsc
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Sphinx - Your Reliable Partner 📌 REASONS TO CHOOSE US: ➝ Cost-Effective Solutions: Rates starting at just $13/hour ➝ Guaranteed 480 Working Hours ➝ 14-Day Risk-Free Trial ➝ Daily Progress Updates ➝ Flexible Hiring Options ➝ Skilled Professionals: Team leaders boast over 5 years of experience, while
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Hanoi, Vn
Services Provided+10 Services
10% Mobile App Development (iOS & Android)
8% Custom Web Application Development
7% Blockchain & Web3 Development
5% ERP & CRM Development
AI Summary
“Sphinx Jsc, a Vietnam-based IT firm, delivers cost-effective software development, AI, blockchain, ERP/CRM, and consulting solutions globally, combining expertise with flexible hiring and proven industry experience.”
Wunderdog
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We assist our clients with digital transformation and innovation initiatives, providing support throughout all stages of digital product development—from design through implementation and maintenance. Our team consists of more than 100 dedicated design and development professionals who are committed
Highlights
$10,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
50-249
Employees
Helsinki, Uusimaa, Fi
Services Provided+8 Services
6% Custom Web Application Development
3% QA & Software Testing
4% Legacy System Modernization
3% Mobile App Development (iOS & Android)
AI Summary
“Wunderdog supports clients in digital transformation by delivering end-to-end digital product development with a skilled team and leveraging a global expert network for enhanced capabilities.”
Salt Technologies
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Providing tailored solutions across various industries, we serve as your reliable technology partner, dedicated to helping you realize your digital transformation objectives through cutting-edge technologies, all grounded in strong ethical standards and an exceptional customer experience. Our offeri
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Austin, Texas, Us
Services Provided+15 Services
5% Frontend Development
5% API Development & Integration
7% Custom Web Application Development
4% E-Commerce Development
AI Summary
“Salt Technologies delivers tailored digital transformation solutions, specializing in software development, AI, cybersecurity, and cloud technologies, prioritizing customer success and ethical practices across industries.”

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