Explore leading software testing companies that launch high-performing products, detect bugs early, improve stability, and ensure every feature works correctly across devices and environments. For teams focused on the US market, we also highlight trusted partners with region-specific expertise, including top US-based software testing companies.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Goosebelt is a premier software company specializing in custom software development and software outsourcing solutions. Our dedicated team of experts harnesses cutting-edge technology and innovative strategies to deliver tailor-made software solutions that drive business growth and efficiency...
Top Services:
- Software Testing
- Mobile App Development
- Software Development
- UI/UX Design
- Show more
- Location
- Orlando, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
Looking for top-notch tech talents? We connect you with IT staff augmentation and tech recruiting services, ensuring you get the best-fit talent for your unique needs...
Top Services:
- Software Development
- Staff Augmentation
- AI Development
- VR/AR
- Mobile App Development
- Show more
- Location
- Vilnius, Lithuania
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 15 Projects Listed
Faster Than Light is an AI-driven custom software development company...
Top Services:
- Design Services
- Product Design
- Web Design
- Web Development
- Software Testing
- Show more
- Location
- Kyiv, Ukraine
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 15 Projects Listed
We are a web studio from Kyiv, Ukraine. At Stubbs, we consider design to be the soul of every digital creation. We care and focus on understanding our client's positioning and preferences to craft visually captivating and user-centric designs...
Top Services:
- Web Development
- eCommerce Development
- Mobile App Development
- Software Testing
- Web Design
- Show more
- Location
- Kyiv, Ukraine
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 14 Projects Listed
Savarian.tech is a forward-thinking and professional company that provides customers all over the globe with flexible terms and economical software testing services for every sort of software testing purpose imaginable. Savarian.tech is an experienced and dependable business partner for new businesses and...
Top Services:
- Software Testing
- Web Development
- AI Development
- Blockchain
- Software Development
- Show more
- Location
- Dubai, United Arab Emirates
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
OptraSeven builds and optimises Shopify stores for ecommerce brands custom themes, apps, and conversion-focused storefronts...
Top Services:
- eCommerce Development
- Web Development
- Web Design
- CRO
- Software Testing
- Show more
- Location
- Dhaka, Bangladesh
- Number of Employees
- Under 49
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 24 Projects Listed
Mile Marker is an agile development agency offering startups strategically designed custom software focused on solving your business problems. Mile Markers team includes product managers, developers, designers, QA, DevOps and more...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- UI/UX Design
- Staff Augmentation
- Show more
- Location
- Madison, Wisconsin
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Armara is a cutting-edge technology company dedicated to delivering innovative and tailored mobile solutions. Our experienced group of developers and designers collaborates closely with clients to transform ideas into robust, user-friendly mobile applications...
Top Services:
- Mobile App Development
- Wearables
- Software Development
- AI Development
- Software Testing
- Show more
- Location
- Yerevan, Armenia
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 15 Projects Listed
NTSprint helps U.S. businesses accelerate growth through AI-powered software, dedicated nearshore engineering teams, and scalable cloud solutions. With 10+ years of experience and 500+ projects delivered, we provide real-time collaboration, faster delivery, and measurable business impact...
Top Services:
- Software Development
- AI Development
- Cloud Consulting
- Web Development
- Mobile App Development
- Show more
- Location
- Bothell, Washington
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
Rubico is passionate about creating websites, web applications and mobile apps! With offices in the US and India, we are well equipped to help any business achieve its development goals!...
Top Services:
- Web Development
- Mobile App Development
- Software Development
- eCommerce Development
- WordPress Website Design
- Show more
- Location
- Austin, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 14 Projects Listed
Woltrio is a healthcare technology and software development company specializing in custom digital solutions for healthcare providers, health systems, and digital health organizations. It combines healthcare expertise with modern software engineering to develop secure, scalable, and compliant systems that...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Software Testing
- DevOps Consulting
- Show more
- Location
- Denver, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
BeeWeb is a software development company with 10+ years of experience in building digital products for businesses worldwide. We have extensive experience in the market starting from MVPs to large enterprises.On our YouTube channel, you can watch video reviews from our clients.https://www.youtube...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Web Development
- UI/UX Design
- Show more
- Location
- Yerevan, Armenia
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 8 Projects Listed
404 Friends is a software development studio from Georgia that designs, builds and ships websites, mobile apps, games and AI products end-to-end. We work in small, senior teams on fixed-price projects, taking products from first prototype to App Store release, hosting and ongoing support. Startups and growing...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- Web Design
- AI Development
- Show more
- Location
- Tbilisi, Georgia
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Genesis Technologies is your one-stop IT partner, offering bespoke development, testing, DevOps, and UI/UX solutions. With 14+ years of proven expertise, 1000+ delivered projects, and a perfect Job Success Score on Upwork, we are trusted by global clients to get it right, every time...
Top Services:
- Software Development
- Software Testing
- DevOps Consulting
- Web Development
- UI/UX Design
- Show more
- Location
- Indore, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
Testers HUB is a leading software testing and QA services company specializing in delivering high-quality testing solutions across various industries. We offer comprehensive testing services, including mobile game testing, healthcare app testing, and web app testing, ensuring your software's functionality...
Top Services:
- Software Testing
- UI/UX Design
- Location
- Delaware City, Delaware
- Number of Employees
- Under 49
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $1,000 - $10,000
We are Aleph Engineering, and our mission is to build outstanding software with wonderful people. Get started cooperating with us, transform your project ideas into successful ones, and have a fantastic time doing it all in the process...
Top Services:
- UI/UX Design
- Software Development
- Web Development
- eCommerce Development
- Software Testing
- Show more
- Location
- Hanover, Germany
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
ABS is a local SEO, web design and AI search agency in Taylor Mill, KY, founded in 2019. We help owner-led businesses get found on Google and Google Maps and get named by ChatGPT and Gemini. Greater Cincinnati and Northern Kentucky are our home market, and we work with businesses anywhere in the US...
Top Services:
- Web Design
- WordPress Website Design
- UI/UX Design
- eCommerce Development
- Web Development
- Show more
- Location
- Taylor Mill, Kentucky
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
At Ask Your Qa, our primary objective revolves around facilitating companies in embracing the Shift to Left software development approach, aiming to consistently deliver high-quality software punctually. Central to this mission is the establishment of a robust and reliable fast feedback loop, ensuring that...
Top Services:
- IT Services
- Software Testing
- Cybersecurity
- IT Compliance Solution
- DevOps Consulting
- Show more
- Location
- Cluj-Napoca, Romania
- Number of Employees
- Under 49
- Average Hourly Rate
- $42/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
MetaBlock Technologies is a forward-thinking digital solutions company specializing in web development, mobile apps, UI/UX design, and custom software. With a team of innovators and tech experts, we help startups and enterprises transform ideas into impactful digital products. Our focus on creativity...
Top Services:
- Web Development
- Blockchain
- AI Development
- Mobile App Development
- Software Development
- Show more
- Location
- Jaipur, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 15 Projects Listed
For a decade, we have been committed to turning ideas into reality! Since our inception, we have nurtured an ideal: to channel ideas into projects that not only come to fruition, but also contribute positively to society...
Top Services:
- Mobile App Development
- Web Design
- eCommerce Development
- Software Testing
- Software Development
- Show more
- Location
- Brasília, Brazil
- Number of Employees
- Under 49
- Average Hourly Rate
- $270/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Scalater is a team with a win-win philosophy, so we'll help you get the most out of your Shopify store. We've helped other companies achieve six-figure profits; it's time to scale...
Top Services:
- eCommerce Development
- Web Development
- WordPress Website Design
- Web Design
- Branding
- Show more
- Location
- Austin, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $1,000 - $10,000
Access the necessary technology, marketing, and design expertise without the expenses and complexities of recruiting and training new staff. Promantus offers the support of seasoned specialists who seamlessly integrate into your team, assisting in new projects, technology implementations, and advancing your...
Top Services:
- Software Testing
- Mobile App Development
- CRM Consulting
- IoT
- AI Development
- Show more
- Location
- Raleigh , North Carolina
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
We understand the intricacies of software development thoroughly. This expertise enables us to offer a broad range of services, from the discovery phase and UX research to creating robust mobile and web applications with user-centered visual experiences...
Top Services:
- Software Development
- Web Design
- eCommerce Development
- UI/UX Design
- Web Development
- Show more
- Location
- Kuwait City, Kuwait
- Number of Employees
- 100 - 249
- Minimal Budget
- $1,000 - $10,000
KeyesCode is a custom software development and AI automation company serving clients in Los Angeles, Tampa, and nationwide. The company builds web applications, mobile apps, SaaS platforms, AI products and agents, CRM systems, business automation, cloud infrastructure, and blockchain solutions around the...
Top Services:
- Web Development
- AI Development
- Mobile App Development
- Software Development
- CRM Consulting
- Show more
- Location
- Tampa, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
At Vectorium Labs, we combine deep technical expertise with bold innovation to deliver cutting-edge, AI-powered software solutions that solve real-world challenges...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Big Data Analytics
- Web Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Achieve your business goals with a leading software development company.As a well-established European software development company, Mendelio has earned the trust of its many customers operating all over the EU. Our team can analyse and fully understand your needs to start delivering the best possible...
Top Services:
- eCommerce Development
- WordPress Website Design
- Web Development
- Software Testing
- AI Development
- Show more
- Location
- Iași, Romania
- Number of Employees
- 50 - 99
- Minimal Budget
- $1,000 - $10,000
We are stardust. We design, develop and support web and mobile apps. We do a lot at stardust, but here are the services we offer most often to our clients. Stardust becomes your dev team. From product, to project management, to development, to QA we manage things end to end. Stardust crafts the user...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- Software Testing
- Blockchain
- Show more
- Location
- Tallinn, Estonia
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Folio3 Digital Health is a healthcare-focused software development company that helps providers, payers, life sciences organizations, medical device companies, and digital health startups build secure, scalable, and compliant healthcare solutions. The company specializes in custom healthcare software, EHR/EMR...
Top Services:
- Digital Services
- Wearables
- AI Development
- Mobile App Development
- Software Development
- Show more
- Location
- San Mateo, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $250/hr
- Minimal Budget
- $1,000 - $10,000
Software development agency based in Seattle, Washington, providing a personal touch for small business owners. We help with Custom Software Development, Mobile App Development, Web Development, Data Engineering, UI/UX Design, and IT Consulting...
Top Services:
- Web Development
- UI/UX Design
- IT Services
- Software Development
- Mobile App Development
- Show more
- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
Founded in 2021, Xlance Collective Co., Ltd is a forward-thinking technology company committed to delivering advanced solutions for businesses. Our team of highly skilled developers specializes in creating customized applications, websites, and system solutions, empowering clients to excel in the digital...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Web Design
- Web Development
- Show more
- Location
- Yangon, Burma
- Number of Employees
- Under 49
- Average Hourly Rate
- $6/hr
- Minimal Budget
- $1,000 - $10,000
We offer SEO, GEO and Web Dev services to professionals to get them ranking on search engine platforms and cited by AI...
Top Services:
- AEO
- SEO
- Digital Marketing
- Web Design
- Email Marketing
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
Povio is a company that is based in San Francisco and specializes in designing and developing digital products that make a positive impact. With over 1000 successful projects delivered and a team of over 200 skilled professionals, we have collaborated with multinational companies like VW, unicorns such as...
Top Services:
- Product Design
- Web Development
- UI/UX Design
- Mobile App Development
- Web Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $1,000 - $10,000
The DV Factory is a premier consultancy specialising in providing industry experts and holistic project and application development teams for the delivery of initiatives in the VOT/OO, Performance Marketing & Data Automation spaces...
Top Services:
- Cloud Consulting
- Managed Services
- DevOps Consulting
- IT Services
- Business Consulting
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $1,000 - $10,000
Were a Košice-based software house delivering team extensions, custom digital products, AI-enhanced solutions, and high-performance e-commerce development. With a modern tech stack and flexible top talent, we combine tech and business to build only what clients truly need. Efficiently and with impact...
Top Services:
- Web Design
- Web Development
- eCommerce Development
- eCommerce
- Software Development
- Show more
- Location
- Košice, Slovakia
- Number of Employees
- Under 49
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $1,000 - $10,000
Hey there, welcome to CodeMudra where tech dreams come to life! Were not your typical tech company; were a bunch of passionate folks who believe in turning your ideas into digital magic. If you're on the lookout for web and mobile app development that's as unique as you are, you're in the right place...
Top Services:
- Web Development
- Mobile App Development
- eCommerce Development
- WordPress Website Design
- Web Design
- Show more
- Location
- Siliguri, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Humaitec is a human-led AI software agency building web apps, mobile apps, and custom AI solutions for businesses that want results fast. We combine expert engineers with cutting edge AI tools to deliver software 3x faster than traditional agencies without bloated teams or wasted budgets.From digital...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- Software Testing
- Web Development
- Show more
- Location
- Islamabad, Pakistan
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
VGD Technologies is a software development and AI solutions company helping startups and enterprises build scalable digital products. We specialize in custom software, web and mobile app development, SaaS, API integration, Generative AI, LLM development, machine learning, intelligent automation, cloud...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Software Testing
- IT Services
- Show more
- Location
- Ahmedabad, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
Where great ideas get their spark. We're Sparkle Infotech a top-rated agency crafting custom digital solutions that drive real business results across the globe...
Top Services:
- Software Development
- Mobile App Development
- IT Services
- AI Development
- Software Testing
- Show more
- Location
- Surat, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $1,000 - $10,000
12+ Years of Expertise in Scalable Network Marketing Software in India. Future Technologies...
Top Services:
- Web Development
- SEO
- PPC
- Blockchain
- Software Testing
- Show more
- Location
- Surat, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
At Adverchitects, we excel in mobile app development for IOS and Android. Helping businesses and startups bring unique ideas to life. With our MVP development stage, we validate your idea and grow it into a full scale mobile app...
Top Services:
- Graphic Design
- UI/UX Design
- Web Development
- Mobile App Development
- AI Development
- Show more
- Location
- Lahore, Pakistan
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
Hybrid Mediaworks is a technology partner helping agencies and businesses turn ideas into scalable digital products through expert development teams, AI, automation, and custom software solutions...
Top Services:
- Web Design
- WordPress Website Design
- Web Development
- eCommerce Development
- Design Services
- Show more
- Location
- Islamabad, Pakistan
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
Web Squalix is a technology company specializing in healthcare software, blockchain development, logistics platforms, gaming applications, web development, and mobile app development for businesses worldwide...
Top Services:
- Web Development
- eCommerce Development
- AI Development
- Blockchain
- Mobile App Development
- Show more
- Location
- Rajpura, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Your Trusted Tech Partner in Product Engineering.Bespoke Web, App, and Custom GenAI Developmentfrom Concept to Scalable, Secure, and High-Performance Solutions...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- IT Services
- Web Design
- Show more
- Location
- Mohali, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $18/hr
- Minimal Budget
- $1,000 - $10,000
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Frequently Asked Questions About Software Testing Companies
What services do software testing firms provide?
Software testing companies provide different testing services to identify errors, security risks, performance issues, and how the software behaves in real-life situations and across devices. As part of their software testing service, they also check if each feature works as expected, fix bugs, make improvements, and make sure new software development updates don’t break existing functions, so the software quality remains stable.
Core services include:
- Functional testing
- Performance testing
- Security testing
- Usability testing
- Regression testing
- Automation testing
- Accessibility testing
- Mobile app testing
- API testing
- Compatibility testing across devices/browsers
- Compliance testing
- Testing with artificial intelligence (AI) tools
- QA audit
How much do software testing services cost?
Hourly rates for QA testing range from $25 to $200+. The final cost is determined based on the size of the software or application, its complexity, required testing type, tech stack (custom-built and older legacy systems cost more), and niche.
The rate will also depend on the seniority of the software tester. Across the United States, junior quality assurance (QA) tester may charge $70 to $110 per hour, while the rate for a senior QA mentor and automation engineer can range from $130 to $200 per hour.
Special software testing services such as QA audit goes from $5,000 to $25,000.
How can businesses know what type of software testing do they need?
Businesses can determine what type of testing solutions they need based on the potential impact of failures and the likelihood of defects. Namely, if they encounter:
- Core functionality issues: Use functional testing to verify features work as expected
- Unstable code or new features: Use unit testing for individual components and integration testing for modules working together
- Poor system stability after updates: Seek regression testing to make sure new changes didn't break existing features
- Performance and load issues: Use performance and load testing to evaluate speed and scalability
- Security issues: Security and penetration testing are commonly used across apps handling sensitive user data
- Hard-to-navigate user experience (UX): Pursue usability testing to determine how intuitive the application is for end users
- Low compatibility across devices: Compatibility testing can evaluate how good the app works on different browsers, devices, and OS versions
There is also the option to choose between manual and automated testing.
Is automated testing more expensive than manual testing?
As an investment, automated testing is pricier than manual testing but offers a lower cost-per-test over time as it can run the same scripts repeatedly, without human intervention. Conversely, manual testing entails lower upfront fee, but its cost grows linearly as the project grows, as every test cycle requires paid hours from QA testers.
So, for short-term projects or ones with shifting requirements, manual testing is considered a more economical option, whereas for maintenance and regression cycles, automated testing grants better return on investment.
The main distinction between these methodologies is that manual testing relies on human observation and interaction to identify defects, whereas automated testing uses software scripts to compare outcomes against predicted results.
Manual testing is best suited for exploratory testing, usability assessments, ad-hoc bug hunting, and minor hotfix verifications where script development would be inefficient. Automated testing, on the other hand, is primarily used for regression testing to make sure the new code does not break existing features.
How do businesses measure the effectiveness of software testing?
The effectiveness of the software testing is measured via:
- Code coverage: The percentage of the code that has been tested
- Defect density: The number of defects found per unit of code
- Test case effectiveness: The percentage of test cases that identify defects; helps prune redundant and ineffective tests
- Time to detect and fix defects: The time it takes to identify and fix software defects and software bugs
- Defect leakage: The number of bugs that "escaped" to production versus those caught during the testing phase