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.
Best Software Testing Firms
6 Companies-Rankings updated: September 03, 2026
Every agency on DesignRush has been evaluated for its expertise and client feedback to empower informed choices. Some listings include paid partnerships.
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
Intrix Cyber Security Services
Cybersecurity
IT Compliance Solution
Software Testing
IT Services
Managed Services
Cloud Consulting
DevOps Consulting
AI Development
Business Consulting
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Public Sector Network
NSW Department of Industries
ALDI
Australian Investment Counsil
Toyo Towers
MyBudget
Charholic Schools NSW
NSW Customer Service
BATES SMART
North Sydney Counsil
Data sourced from the agency's DesignRush profile
Intrix Cyber Security Reviews & Testimonials
fumin lu
Review from Google
5.0★
fumin lu's Review Sourced from Google
Our experience with Intrix Cyber Security was nothing short of phenomenal. From the moment we engaged their services for a penetration testing, we knew we were in safe hands.
What impressed us the most was their rapid response to our inquiries—always there when we needed them. Working with Intrix was a pleasure, and we highly recommend them as a top-notch cybersecurity partner.
A heartfelt thank you to the entire team at Intrix for going above and beyond in safeguarding our digital assets!
Practice Profiles
Review from Google
5.0★
Practice Profiles's Review Sourced from Google
To comply with ever increasing corporate-client demands, we recently worked with Ibrahim and the team at Intrix Cyber Security to conduct a security audit of our system and to pass Pen Testing of our key applications. From start to finish, their team demonstrated exceptional customer service. They were very professional, knowledgeable and easy to work with.
They conducted an in-depth analysis of our applications to identify potential vulnerabilities and provided us with a detailed report of their findings as well as actionable recommendations on how best to address them. They were always available to answer our questions and worked with us through the remediation process.
We highly recommend Intrix to anyone in need of such services. Their expertise and customer service were exceptional, and after all the “inconvenient” (and by that I mean pain-in-the-arse) hard work, they helped us improve our security narrative and certification to the level where we are now able to tout such credentials as a competitive advantage in our space.
Fayez Moussa
Review from Google
5.0★
Fayez Moussa's Review Sourced from Google
I cannot recommend Intrix enough! As a member of the board at a local school, we recently hired them to conduct a comprehensive security audit, and the results were nothing short of exceptional. Their team was incredibly knowledgeable, professional, and efficient in identifying potential vulnerabilities in our systems and providing actionable recommendations to address them. They took the time to explain their findings and recommendations in a way that was easy for us to understand, which was greatly appreciated.
The team at Intrix truly went above and beyond to ensure the security and privacy of our students, staff, and faculty. Their attention to detail, expertise, and commitment to our organization's security needs were second to none. We are so grateful for their partnership and would highly recommend them to anyone in need of top-notch cyber security consulting services. Thank you again for everything, Intrix!
Reviews verified by DesignRush and sourced from the agency's profile
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One Stop Shop for Software Dev, Big Data, AI and Marketing.
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
Kaizen Company Services
Software Development
Mobile App Development
AI Development
Software Testing
Big Data Analytics
Business Consulting
Web Design
Web Development
Media Buying
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Empowering business success with custom software solutions
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
Lindner IT Services
Web Design
Mobile App Development
Web Development
UI/UX Design
Software Development
Software Testing
WordPress Website Design
SEO
Managed Services
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Enterprise businesses
Medium sized businesses
Small businesses
Data sourced from the agency's DesignRush profile
Lindner IT Reviews & Testimonials
Denise !
Review from Google
5.0★
Denise !'s Review Sourced from Google
I can only recommend Lindner IT to everyone.
Robin Lindner always takes care of our various IT projects quickly and comprehensively. And if we ever had problems, he was usually able to fix them after a short time.
Working together is fun and we don't regret our IT switch to Lindner IT in any way. On the contrary, we should have done this much earlier.
Big thank you for the great support!
Reviews verified by DesignRush and sourced from the agency's profile
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Reliable partner of your digital transformation and innovation journey.
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
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Location
Joplin, Missouri
Number of Employees
50 - 99
Average Hourly Rate
$30/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
1 Project Listed
Ribbitz LLC Services
Software Development
Mobile App Development
Software Testing
Web Development
Web Design
eCommerce Development
IT Services
ERP Consulting
CRM Consulting
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Mediusware Limited-Your Trusted B2B IT Partner for Scalable Growth
Since 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
Mediusware Limited Services
eCommerce Development
Web Development
Digital Marketing
Software Testing
AI Development
Mobile App Development
Software Development
Big Data Analytics
UI/UX Design
Staff Augmentation
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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
Atoms Digital Solutions Services
Digital Marketing
Social Media Marketing
Content Marketing
Video Marketing
PPC
Web Development
eCommerce Development
Software Development
Mobile App Development
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Hyma Speciality Clinics
Komali Fertility Centre
Udayananda Cancer Hospitals
Divya Rheumatology Centre
Dr. Thejaswini Puridi Palla
Data sourced from the agency's DesignRush profile
Atoms Digital Solutions Reviews & Testimonials
wayctniha
Review from Google
5.0★
wayctniha's Review Sourced from Google
As a B.Tech student, I was looking for an internship where I could actually learn something beyond the classroom. Joining the best digital marketing company in Guntur turned out to be one of the best decisions I made.
Unlike a regular internship, I got the chance to work on real-world projects and build AI tools that solve practical business problems. That experience really increased my interest in AI, automation, and digital marketing. Seeing how these technologies are used in real projects gave me a completely different perspective.
The team was friendly, supportive, and always ready to guide me whenever I had questions. I learned new skills, gained confidence, and understood how a professional work environment actually functions.
If you're a student searching for the best digital marketing company in Guntur for an internship or anyone looking for reliable digital marketing services, I would definitely recommend this place. The practical exposure, learning experience, and supportive environment make it stand out.
Parimala Parimala
Review from Google
5.0★
Parimala Parimala's Review Sourced from Google
I had an amazing internship experience at Atoms Digital Solutions. During my internship, I worked on real-world AI automation projects like an HR Letter Dispatch System, Poster Analysis Agent, and a Video Caption Generator. The team was incredibly supportive, and I gained hands-on experience with AI, automation, digital marketing, content creation, and teamwork.
The mentors encouraged learning through practical projects, gave valuable feedback, and created a positive environment where every intern could grow professionally. This internship significantly improved my technical skills, communication, and confidence.
I also got the opportunity to understand how healthcare marketing works and why Atoms Digital Solutions is considered one of the best digital marketing companies for doctors. Their expertise in doctor branding, healthcare marketing, SEO, Google Ads, and social media marketing truly stands out.
If you're looking for an internship with real learning opportunities or you're a healthcare professional searching for the best digital marketing company for doctors, I highly recommend Atoms Digital Solutions. Thank you to the entire team for an unforgettable learning journey! 🚀
Yampati Dinesh
Review from Google
5.0★
Yampati Dinesh's Review Sourced from Google
I’m working as a Videographer at Atoms Digital Solutions, and it has been a great experience. The company provides a creative and professional work environment where video marketing, doctor branding, and content creation are given high importance. I get hands-on experience with professional video shoots, healthcare marketing videos, and social media content that directly helps clients improve their online visibility and patient reach.
The team is supportive, workflows are well-structured, and there’s a strong focus on quality, innovation, and results. Atoms Digital Solutions is truly one of the best digital marketing companies in Guntur and Andhra Pradesh, especially for healthcare professionals and businesses looking for impactful digital growth.⭐⭐⭐⭐⭐
Reviews verified by DesignRush and sourced from the agency's profile
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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.
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
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