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.
Navus is a dynamic and forward-thinking software development company committed to transforming ideas into powerful digital solutions. With a focus on cutting-edge technologies and a passion for innovation, we specialize in creating bespoke software tailored to meet the unique needs of our clients...
Top Services:
- Web Design
- Web Development
- WordPress Website Design
- eCommerce Development
- Mobile App Development
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- Location
- Klaipėda, Lithuania
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Portfolios Count
- 7 Projects Listed
Breaking barriers in code crafting: Discover Droxic, Your Ultimate Software Companion!...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- Software Testing
- DevOps Consulting
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- Location
- Sofia, Bulgaria
- Number of Employees
- 50 - 99
- Portfolios Count
- 4 Projects Listed
With passion and innovative spirit, we advise and support companies and organizations in their very individual digital transformation. Alter Solutions Deutschland focuses on supporting its customers in the fields Cyber Security, Cloud & Infrastructure, Software Delivery, Business Performance and Agile IT...
Top Services:
- Software Development
- Cybersecurity
- Cloud Consulting
- Big Data Analytics
- Mobile App Development
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- Location
- Dusseldorf, Germany
- Number of Employees
- 50 - 99
- Portfolios Count
- 5 Projects Listed
Delivering digital transformation - from consultancy and engineering, to AI, machine learning, cloud and UX...
Top Services:
- Software Development
- AI Development
- Big Data Analytics
- Cloud Consulting
- Software Testing
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- Location
- Leeds, United Kingdom
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Portfolios Count
- 2 Projects Listed
Ubertesters is a crowdtesting company that allows organizations to outsource the power of the crowd for their own digital testing or QA needs by using remote global vetted testers with devices...
Top Services:
- Software Testing
- Location
- Ramsey, New Jersey
- Number of Employees
- Under 49
- Average Hourly Rate
- $15/hr
- Minimal Budget
- Under $1,000
We are a Swedish/Bosnian award-winning agency specializing in IT outsourcing and end-to-end software development. With 85 experts on our team, we work with ventures and established companies to turn ideas into functional, high-quality products...
Top Services:
- Web Development
- Mobile App Development
- Software Development
- IT Services
- eCommerce Development
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- Location
- Gothenburg, Sweden
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $10,000 - $25,000
Apadmi designs, develops and optimises mobile apps for leading brands. We unlock new value through strategy, platforms, middleware and systems integrations that transform the way they work...
Top Services:
- Mobile App Development
- UI/UX Design
- Web Development
- Software Testing
- Blockchain
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- Location
- Manchester, United Kingdom
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $50,000 & Up
At Supercharge, we partner with our clients to turn disruption into opportunity by creating transformative digital solutions. With over 200 digital experts across New York, London, Amsterdam, Helsinki, Vienna, and Budapest, we develop digital strategies, design delightful interfaces, and build robust software...
Top Services:
- Software Development
- AI Development
- Digital Services
- Product Design
- Mobile App Development
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- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 6 Projects Listed
Lindner IT specializes in developing industry-specific software solutions that empower enterprises. Using technologies such as SolidJS, Svelte, VueJS, Astro, ASP.NET Core, and Rust with Actix, our experienced team excels at both frontend and backend web development. Using our knowledge of Microsoft Azure and...
Top Services:
- Web Design
- Mobile App Development
- Web Development
- UI/UX Design
- Software Development
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- Location
- Igersheim, Germany
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
We specialize in Managed Services, Lightning Migration, Sales Cloud, Service Cloud, Marketing Cloud, Experience Cloud, and Einstein AI, delivering innovative solutions for businesses of all sizes from small, medium enterprises to Fortune 500 companies...
Top Services:
- Managed Services
- CRM Consulting
- Cloud Consulting
- DevOps Consulting
- Software Testing
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- Location
- Sydney, Australia
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $25,000 - $50,000
We operate with tech teams specialized in designing, developing, testing, deploying and maintaining tailored software to meet the specific needs of its customers, with a range of services related to the software development lifecycle...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Software Testing
- Big Data Analytics
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- Location
- Manaus, Brazil
- Number of Employees
- Under 49
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $1,000 - $10,000
Ribbitz LLC provides the right team to make your project related to software development, mobile app development, web application development, e-commerce solutions, Software quality assurance, and Digital Marketing...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- Web Development
- Web Design
- Show more
- Location
- Joplin, Missouri
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
SOLUTECIA is an innovative company in the application of new technologies for the benefit of companies. We are experts in artificial intelligence, blockchain, telemedicine, teleworking platforms, and software factories...
Top Services:
- Web Development
- Web Design
- WordPress Website Design
- eCommerce Development
- AI Development
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- Location
- Medellín, Colombia
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- Under $1,000
As your best choice of Excel expert and Excel consultant, we know the ins and outs of spreadsheet magic. Based in Canada, our team of developers is committed to making your life easier. We offer our services in Vancouver, Montreal, Toronto, and across Alberta...
Top Services:
- Web Development
- eCommerce Development
- WordPress Website Design
- Software Testing
- AI Development
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- Location
- North Vancouver, Canada
- Number of Employees
- Under 49
- Average Hourly Rate
- $34/hr
From enterprise software solutions and innovative custom maps featuring intuitive wayfinding, to cutting-edge AR and VR experiences, we specialise in crafting transformative technology...
Top Services:
- Digital Services
- Digital Strategy
- UI/UX Design
- Web Development
- Software Testing
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- Location
- Sydney, Australia
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
Mediusware Limited-Your Trusted B2B IT Partner for Scalable GrowthSince 2015, Mediusware has successfully delivered 850+ projects across 20+ countries, serving over 1,000 global clients with a team of 120+ skilled professionals...
Top Services:
- eCommerce Development
- Web Development
- Digital Marketing
- Software Testing
- AI Development
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- Location
- Mount Pleasant, South Carolina
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Atoms Digital Solutions is a leading digital marketing agency and software development company based in Andhra Pradesh, India. We specialize in healthcare digital marketing for hospitals, doctors, clinics, and allied services. Our team also builds scalable websites and custom CRM tools that streamline...
Top Services:
- Digital Marketing
- Social Media Marketing
- Content Marketing
- Video Marketing
- PPC
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- Location
- Guntur, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
With 20+ years of experience in complex custom software development projects, we are a reliable Swiss partner for software innovation. Our mission is supporting our customers with innovative solutions that set them apart from the average. We help companies strengthen their uniqueness and fully integrate their...
Top Services:
- Mobile App Development
- Digital Strategy
- UI/UX Design
- eCommerce Development
- Web Design
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- Location
- Bubikon, Switzerland
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $120/hr
- Minimal Budget
- $25,000 - $50,000
ASEE Group is global technology group. Our companies deliver mission-critical software to 1,200+ clients in 55+ countries. We invest in founder-led software businesses. ASEE Group is part of Asseco Group...
Top Services:
- Cybersecurity
- IT Services
- Engineering
- CRM Consulting
- ERP Consulting
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- Location
- Warsaw, Poland
- Number of Employees
- 1000 & Up
Code Ethics is a technology consulting and development firm dedicated to delivering high-quality, scalable, and reliable digital solutions. We specialize in helping businesses transform ideas into impactful products through a combination of strategic consulting, modern engineering, and ethical execution...
Top Services:
- Managed Services
- IT Services
- CRM Consulting
- ERP Consulting
- AI Development
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- Location
- Hyderabad, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
Intrix Cyber Security is a specialist Australian consultancy providing high-end offensive security and strategic advisory services. As an approved supplier on the BuyICT and Buy NSW government panels, we provide advanced penetration testing, Essential Eight maturity uplift, and 24/7 incident response. We...
Top Services:
- Cybersecurity
- IT Compliance Solution
- Software Testing
- IT Services
- Managed Services
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- Location
- Sydney, Australia
- Number of Employees
- Under 49
- Average Hourly Rate
- $250/hr
- Minimal Budget
- $1,000 - $10,000
SeenTK is a Syrian software development company building websites, mobile apps, admin dashboards, e-commerce platforms, and Unity games. We help startups and businesses turn ideas into reliable digital products with clean UI/UX, scalable code, testing, deployment, and ongoing support...
Top Services:
- Design Services
- Web Design
- eCommerce Development
- Web Development
- Software Testing
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- Location
- Damascus, Syria
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- Under $1,000
CORE Migration helps organizations update old business applications, move enterprise systems, and lower technical debt through effective modernization strategies. Since 1997, we have focused on application modernization, software migration, custom development, cloud transformation, and AI-supported...
Top Services:
- Software Development
- AI Development
- Software Testing
- Mobile App Development
- Cloud Consulting
- Show more
- Location
- Ottawa, Canada
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $25,000 - $50,000
Intelligrow helps banks, fintechs, MFIs, and financial institutions accelerate digital transformation with secure, scalable software solutions. From digital lending and core banking to Mifos implementation, cloud services, AI, and custom application development, we deliver technology that drives innovation...
Top Services:
- Mobile App Development
- Software Testing
- Software Development
- Digital Strategy
- Digital Services
- Show more
- Location
- Hubballi, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Bridging the gap between business vision and technology, Check4Tech creates tailored digital solutions for business that simplify operations, improve efficiency, and drive growth...
Top Services:
- Software Development
- UI/UX Design
- Web Development
- Mobile App Development
- AI Development
- Show more
- Location
- Mastic Beach, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Lion Solution helps businesses customize SuiteCRM around real sales, customer service, marketing, and operational workflows. As an official SuiteCRM partner, we deliver CRM consulting, development, integrations, migrations, automation, reporting, and long-term support. We also bring AI into CRM processes...
Top Services:
- Software Development
- Software Testing
- AI Development
- Mobile App Development
- Show more
- Location
- Padua, Italy
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Ouvriex LLC was established in 2021 as part of the FORM Production Group, which originated in 2005. The company operates as a comprehensive business solutions provider, offering services that include human resources solutions, legal consultations, taxation advisory, facility management, and workspace rentals...
Top Services:
- HR Outsourcing
- Customer Support
- Business Consulting
- Staff Augmentation
- DevOps Consulting
- Show more
- Location
- Cairo, Egypt
- Number of Employees
- Under 49
- Average Hourly Rate
- $70/hr
- Minimal Budget
- Under $1,000
En LogTech Software & Soluciones Tecnológicas desarrollamos software a medida, automatizamos procesos e integramos inteligencia artificial para empresas que necesitan soluciones flexibles y adaptadas a su forma de trabajar. También trabajamos como partner tecnológico en proyectos, outsourcing...
Top Services:
- Software Development
- AI Development
- Software Testing
- Blockchain
- CRM Consulting
- Show more
- Location
- Buenos Aires, Argentina
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Somayar est un intégrateur technologique marocain basé à Rabat, spécialisé depuis 1999 dans les solutions de billettique et SAEIV pour le transport urbain, la radiocommunication professionnelle Hytera, les systèmes d'extinction automatique d'incendie Protecfire, la géolocalisation GPS et la gestion de...
Top Services:
- Digital Strategy
- Wearables
- IoT
- Software Testing
- AI Development
- Show more
- Location
- Rabat, Morocco
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $10,000 - $25,000
Great SaaS products don't start with code-they start with the right plan. AI Dev Planner helps founders validate ideas, research the market, plan the MVP, choose the right technology, estimate costs, and turn an idea into an executable SaaS product plan-before wasting months building the wrong thing...
Top Services:
- Web Design
- UI/UX Design
- Web Development
- Mobile App Development
- Software Development
- Show more
- Location
- Islamabad, Pakistan
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
At Uni-Verso693, we turn operational challenges into robust technology solutions. We build custom software, web and mobile apps, and integrate intelligent agents (LLMs/RAG) designed to eliminate business inefficiencies. We create proprietary and client digital ecosystems using agile methodologies, clean code...
Top Services:
- Design Services
- Web Design
- Web Development
- eCommerce Development
- Software Testing
- Show more
- Location
- Villa Alemana, Chile
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Userhub is a Bangladesh-based research and UX partner helping international organizations, consulting firms and product teams understand people, services and digital experiences. We combine qualitative and mixed-methods research, UX/usability studies, accessibility evaluation, field research and local...
Top Services:
- Market Research
- UI/UX Design
- Business Consulting
- Product Design
- Software Testing
- Show more
- Location
- Dhaka, Bangladesh
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/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