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
5 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.
Dream X is a full-cycle software development company dedicated to building high-performance products. Founded in 2022 by Alexandr Korshykov, we partner with businesses worldwide to deliver end-to-end technical solutions...
Top Services:
UI/UX Design
Web Design
Product Design
Mobile App Development
Web Development
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Location
San Francisco, California
Number of Employees
Under 49
Average Hourly Rate
$30/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
15 Projects Listed
DreamX Services
UI/UX Design
Web Design
Product Design
Mobile App Development
Web Development
eCommerce Development
Software Testing
Software Development
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Pladri
Greek Time Corp.
PropTexx
Data sourced from the agency's DesignRush profile
DreamX Reviews & Testimonials
Yuriy Husev Head of Marketing at DMT Business Development
5.0★
UI/UX Design Review from Yuriy Husev
We hired DreamX to redesign our company website to better reflect DMTs modern approach to B2B lead generation and appointment-setting services. The DreamX team quickly understood our brands personality and transformed it into a sleek, fast, and conversion-focused digital experience. Their UX/UI team created user flows that made our content easier to navigate and optimized for lead capture. Communication was professional and consistent we always knew exactly what stage the project was in. The final result exceeded expectations: the new website not only strengthened our online presence but also positively impacted inbound lead quality. We highly recommend DreamX to any business looking for a creative and reliable design partner.
Vlad Kozhulenko COO at Viso
5.0★
UI/UX Design Review from Vlad Kozhulenko
We worked with DreamX on developing a corporate website, and the results exceeded our expectations. Their team demonstrated a perfect balance of creativity, technical expertise, and attention to detail. From the very first step, they carefully analyzed our needs, created a modern and functional design, and ensured a smooth user experience.What impressed us most was their ability to translate our brand identity into a digital format that feels both professional and engaging. DreamXs communication was clear and proactive throughout the project, which made the entire collaboration smooth and efficient.I highly recommend DreamX to any company looking for a reliable partner in web and UI/UX design. They not only deliver on time but also go the extra mile to make sure the final product truly stands out.
Iryna Liashko Digital Marketing Specialist at SoloWay Technologies
5.0★
Web Design Review from Iryna Liashko
We partnered with DreamX to redesign our corporate website and improve its overall user experience. Their team approached the project with a clear strategy, focusing on both visual appeal and usability.From the very beginning, communication was excellent, every step of the process was transparent, and we received timely updates along with interactive design prototypes. DreamX demonstrated strong expertise in UX/UI, helping us simplify complex flows and create a design that looks modern, clean, and fully responsive.The final result exceeded expectations: the site now feels intuitive, fast, and visually consistent across all devices. Were very satisfied with the collaboration and highly recommend DreamX for any UX/UI design projects.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Turnkey website development Order website development and individual design Website promotion Order a website High quality of work...
Top Services:
Web Design
Web Development
eCommerce Development
WordPress Website Design
Mobile App Development
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Location
Kyiv, Ukraine
Number of Employees
50 - 99
Average Hourly Rate
$70/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
7 Projects Listed
Confidence Technology Services
Web Design
Web Development
eCommerce Development
WordPress Website Design
Mobile App Development
Software Development
Software Testing
Digital Services
IT Compliance Solution
CRM Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Novobudova
Butams
BoostyLabs
HereHealHub
Korol Natali
UKRFIX
NexusVibe
Waldberg
Rofilena
Tapi Carpets
Data sourced from the agency's DesignRush profile
Confidence Technology Reviews & Testimonials
Aman Toor Ceo at re/max
5.0★
PHP Review from Aman Toor
Ive been working with Artur Klimenko and his agency Confidence Technology on my website, and so far, Im really impressed with the progress. We've completed the first milestone, and Artur has shown great professionalism and skill in bringing my ideas to life. He's been responsive, attentive to detail, and really listens to my needs. While the website isnt fully completed yet, the work done so far has been fantastic, and Im excited to see the final product. I look forward to continuing the project with Artur and would recommend him based on my experience so far!
Taras Huliichuk. 🇺🇦 Developer at NexusVibe S.L.
5.0★
Laravel Review from Taras Huliichuk. 🇺🇦
Heres the translated comment:Comment:Great job! The application looks intuitive, with a modern design and smooth user interface. The functionality is implemented at a high level: convenient specialist search, a transparent booking system, and a clear service payment structure. Additionally, I want to highlight:1.Performance: The app runs quickly and without lags, leaving a positive impression on users.2.Usability: The navigation logic and functionality are user-friendly for both clients and specialists.3.Code: If the internal code is written with the same care as the external interface, its a testament to your professionalism.If there are any upcoming updates, consider:Adding ratings/reviews for specialists to build client trust.Integrating reminders through push notifications or email.Thank you so much for your contribution to the project!
Oleksii Shostak EA to CTO at Investing.com
5.0★
Web Development Review from Oleksii Shostak
We have been working with Confidence Technology for a long time, and they have consistently proven to be a reliable and innovative partner. Over the years, they have completed several projects for us, each delivered with exceptional quality and attention to detail. Their team combines technical expertise with a client-focused approach, ensuring that our requirements are always met and often exceeded. Confidence Technologys ability to handle complex challenges and provide tailored solutions has made them an invaluable part of our journey. We highly recommend them to anyone looking for top-notch web development services
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Cymbol Design, Inc. is a web & mobile design agency based in Indianapolis, Indiana. We design websites, prototypes, and complete digital products. Our mission is to partner with startups and development firms to create cutting-edge apps and technology that creates growth for your business...
Top Services:
Product Design
Digital Services
Branding
Web Development
UI/UX Design
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Location
Indianapolis, Indiana
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$10,000 - $25,000
Cymbol Design Services
Product Design
Digital Services
Branding
Web Development
UI/UX Design
Web Design
Mobile App Development
Software Testing
Digital Strategy
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
DLYMI is a full-service, collaborative, human-centered design studio. We work with clients from vision through execution and release. We are your partner in creating thoughtful digital experiences that have a responsible impact on the world while delivering on business goals and customer value...
Top Services:
Design Services
Product Design
UI/UX Design
Web Development
Mobile App Development
Show more
Location
Denver, Colorado
Number of Employees
Under 49
Average Hourly Rate
$150/hr
Minimal Budget
$10,000 - $25,000
Design Like You Mean It Services
Design Services
Product Design
UI/UX Design
Web Development
Mobile App Development
Software Development
Web Design
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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.Â
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. Â
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. Â
Special software testing services such as QA audit goes from $5,000 to $25,000.Â
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:Â Â
Core functionality issues: Use functional testing to verify features work as expectedÂ
Unstable code or new features: Use unit testing for individual components and integration testing for modules working togetherÂ
Poor system stability after updates: Seek regression testing to make sure new changes didn't break existing featuresÂ
Performance and load issues: Use performance and load testing to evaluate speed and scalabilityÂ
Security issues: Security and penetration testing are commonly used across apps handling sensitive user dataÂ
Hard-to-navigate user experience (UX): Pursue usability testing to determine how intuitive the application is for end usersÂ
Low compatibility across devices: Compatibility testing can evaluate how good the app works on different browsers, devices, and OS versionsÂ
There is also the option to choose between manual and automated testing. Â
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. Â
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.Â
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. Â
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.Â
How do businesses measure the effectiveness of software testing?
The effectiveness of the software testing is measured via:Â
Code coverage: The percentage of the code that has been testedÂ
Defect density: The number of defects found per unit of codeÂ
Test case effectiveness: The percentage of test cases that identify defects; helps prune redundant and ineffective testsÂ
Time to detect and fix defects: The time it takes to identify and fix software defects and software bugsÂ
Defect leakage: The number of bugs that "escaped" to production versus those caught during the testing phase Â
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