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

4,561 Companies

List of the Best QA & Software Testing Agencies

CAT Software Services
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Welcome to CAT Software Services, your go-to destination for all your business software requirements. With a successful history of providing innovative and dependable software solutions, we aim to streamline your operations and help you reach your objectives. We recognize that each business is disti
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
250-999
Employees
Princeton, New Jersey, Us
Services Provided+8 Services
5% E-Commerce Development
10% Mobile App Development (iOS & Android)
14% Custom Web Application Development
5% QA & Software Testing
AI Summary
“CAT Software Services delivers tailored software development, mobile apps, e-commerce solutions, and comprehensive digital marketing, optimizing business efficiency and market presence for diverse clients in the U.S.”
Futurism Technologies, Inc.
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Futurism Technologies is a globally recognized digital transformation partner that assists startups, scale-ups, and Fortune 500 companies in modernizing, securing, and scaling their technology operations. Established in 2003, we have over 22 years of extensive expertise and a team of more than 750 p
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
250-999
Employees
Piscataway, New Jersey, Us
Services Provided+14 Services
8% Custom Web Application Development
5% API Development & Integration
5% Backend Development
3% Frontend Development
AI Summary
“Futurism Technologies is a global digital transformation partner offering IT consulting, development, infrastructure, cybersecurity, and emerging technology solutions to startups and Fortune 500 firms.”
Ostryx
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OSTRYX is a premier software development firm that provides exceptional design and development services for websites, mobile apps, and tailored software solutions. We act as your comprehensive resource for all software-related requirements and creative concepts, turning ideas into fully operational
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Destin, Florida, Us
Services Provided+5 Services
14% Mobile App Development (iOS & Android)
5% API Development & Integration
7% Backend Development
3% QA & Software Testing
AI Summary
“OSTRYX is a software development company specializing in design and development of websites, mobile apps, and custom software, delivering end-to-end solutions from concept to launch.”
Quadra Karya Santosa
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PT Quadra Karya Santosa (Quadra) operates through three core business divisions: Information & Technology (IT), Strategic Procurement, and Construction & Electrical. The company is actively engaged in a variety of strategic projects focused on technology advancement, procurement needs, and construct
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+3 Services
8% API Development & Integration
15% Custom Web Application Development
3% QA & Software Testing
17% Product UX Strategy
AI Summary
“PT Quadra Karya Santosa specializes in IT solutions, strategic procurement, and construction services, delivering innovative, adaptable projects and software products to meet evolving market demands.”
DataArt
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Established in 1997, DataArt is an international software engineering company that has consistently adapted to become a trusted technology ally for industry leaders. Guided by our people-first philosophy, our exceptional team develops and engineers data-driven, cloud-native solutions that provide bo
Highlights
$100,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
1000-9999
Employees
New York, New York, Us
Services Provided+13 Services
5% QA & Software Testing
5% E-Commerce Development
15% Custom Web Application Development
5% Custom AI Chatbot Development
AI Summary
“DataArt is a global software engineering firm specializing in data-driven, cloud-native solutions, partnering with leading brands to deliver innovative technology and lasting business value.”
Qloron
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Qloron Technology is a prominent IT firm located in Hyderabad, Nagpur, India. We are dedicated to achieving excellence and are enthusiastic about technology, focusing on delivering outstanding software development and outsourcing services to clients around the globe. Our aim is to equip businesses w
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
50-249
Employees
Hyderabad, Telangana, In
Services Provided+9 Services
7% CRM Consulting and SI
10% Cloud Consulting & SI
8% Generative AI
5% ERP Consulting and SI
AI Summary
“Qloron Technology, based in India, specializes in comprehensive IT solutions delivering software development and outsourcing services globally to enhance business growth and operational efficiency.”
Stack Force
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Stack Force is a software development company specializing in Fintech that empowers businesses through tailored software solutions. We offer services in web, mobile, cloud, AI, and more. Our team assists you in transforming your ideas into a project, guiding you from the initial build phase to produ
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Services Provided+2 Services
25% Custom Web Application Development
20% Mobile App Development (iOS & Android)
5% QA & Software Testing
20% Product UX Strategy
AI Summary
“Stack Force is a fintech-focused software development company offering tailored web, mobile, cloud, and AI solutions, guiding projects from concept to production and continuous support.”
Noxtton
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Noxtton is the first multi-dimensional tech and consulting firm in Georgia, primarily targeting the international market. The company focuses on business corporations, government and non-government sectors, as well as start-ups. Noxtton offers a diverse range of digital services, including Tech cons
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Tbilisi, Tbilisi, Ge
Services Provided+32 Services
4% ERP & CRM Development
2% QA & Software Testing
3% Mobile App Development (iOS & Android)
3% Blockchain & Web3 Development
AI Summary
“Noxtton is a Georgian multi-dimensional tech and consulting firm specializing in innovative digital strategies, offering services like software development, cybersecurity, AI, blockchain, and digital marketing to diverse sectors.”
SaveOnDev
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Save-On-Dev creates and develops digital platforms and software that assist organizations in connecting with customers, distinguishing their brands, and boosting revenue. Our team of customer experience designers, software engineers, and data specialists collaborates with clients to create strategie
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Victoria, British Columbia, Ca
Services Provided+6 Services
15% Software Development Services
15% Internet of Things Services
15% Mobile App Development (iOS & Android)
10% E-Commerce Development
AI Summary
“SaveOnDev develops innovative digital platforms and software, collaborating with clients through agile strategies to enhance customer engagement, brand distinction, and revenue growth across industries.”
Elecsoft
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We assist organizations in flourishing in the digital era. Our IT solutions are strong, simple to integrate, and compatible with current workflows. Our team is committed to grasping the distinct challenges faced by each organization and offers tailored solutions to meet their specific requirements.
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Toronto, Ontario, Ca
Services Provided+3 Services
23% Custom Web Application Development
15% Mobile App Development (iOS & Android)
8% E-Commerce Development
5% QA & Software Testing
AI Summary
“Elecsoft delivers tailored IT solutions that integrate seamlessly into existing workflows, enabling organizations to thrive in the digital era by addressing unique business challenges.”

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Top QA & Software Testing Firms

List of the Best QA & Software Testing Agencies

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