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.
World-Class Software Engineering Partner
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
- Show more
- 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDreamX Services
Data sourced from the agency's DesignRush profilePladri Greek Time Corp. PropTexx
DreamX Reviews & Testimonials

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.

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.

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 ReviewsEmpowering Startups.
RedCat is an information technology firm that provides web and mobile development services to customers all over the globe.Over the last five years, we have assisted foreign startups in securing a suitable position on the market and achieving growth via the use of the most cutting-edge technologies...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- IoT
- Software Testing
- Show more
- Location
- Kharkiv, Ukraine
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRedCat Services
Data sourced from the agency's DesignRush profilePassBase ThrowNoMore DonorSearch Ubicar MySize Hyfit Xrist Gorodissky SmartDrive GTW
RedCat Reviews & Testimonials

Web Development Review from Danny Gwynne
I loved working with Redcat! They developed a fantastic web application for our media production company. Their team was friendly, professional, and delivered high-quality work on time. They understood our needs and suggested great solutions. The design was modern and exceeded our expectations. Communication was smooth, and they were always available to answer questions. I highly recommend Redcat for web development projects!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsBuild Intelligent Systems Lead The Future Together
Founded in 2016, Relipa is a premier software development firm operating in Vietnam and Japan. We empower businesses globally with our engineering-first mindset, delivering high-quality, agile IT development services including AI, Blockchain, Web, and Mobile App solutions. Backed by an ISO-certified process...
Top Services:
- Software Development
- Blockchain
- Mobile App Development
- IT Services
- Software Testing
- Show more
- Location
- Hanoi, Vietnam
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRelipa Services
Data sourced from the agency's DesignRush profileCyberstep Leeways YAMAHA TOPPAN PIALA HIMACS APTO CryptoGames LEVIASINC. KALMOR
Software development company
Agilie is a software development company with 15+ years of expertise delivering fintech, blockchain, healthcare, and IoT solutions for startups, SMEs, and enterprises...
Top Services:
- Staff Augmentation
- IT Services
- Mobile App Development
- Software Development
- Web Development
- Show more
- Location
- Dnipro, Ukraine
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAgilie Services
Data sourced from the agency's DesignRush profileShark Taxi (Ukrainian Uber) PixelZoo Social Luke - SocialFi crypto platform Level01 - Easy-to-use p2p trading solution Chameleon pay - Multi-digital wallet app
Custom software development firm
Greensighter is a full-cycle software development studio. We build custom software, AI agents, and MVPs...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Wearables
- IT Services
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGreensighter Services
Data sourced from the agency's DesignRush profileSmelter 365 Data Science Bettin.gs E2 Recruiting Kapes Zaza Pay
The team based on high-skilled game industry professionals who love their craft...
Top Services:
- Software Development
- Mobile App Development
- Product Design
- Blockchain
- Software Testing
- Show more
- Location
- Tallinn, Estonia
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGalaxy4games Services
Data sourced from the agency's DesignRush profileInfinity Apps Contendo media TO "Maski"
Transforming Ideas into Immersive Gaming Experiences.
AppRoarr Studios is a leading game development studio with a passion for creating immersive & captivating gaming experiences. We specialize in providing end-to-end game development services, covering everything from concept ideation to post-production support...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- VR/AR
- Web Development
- Show more
- Location
- Delhi, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAppRoarr Studios Services
Data sourced from the agency's DesignRush profileUnited Nations Allan Gray Orbis Foundation Hero Motocorp Byju's Appsolute Games
Where Ideas Spark Innovation
Sparkout Tech Solutions Inc., is a leading software development company based in the US and India. We specialize in enterprise software development, supply chain solutions, fintech applications, blockchain product development, AI development, and UI/IX Design services. Over 7 years, Sparkout Tech has...
Top Services:
- Graphic Design
- UI/UX Design
- Web Development
- Blockchain
- Software Development
- Show more
- Location
- Coimbatore, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSparkout Tech Solutions Inc Services
Data sourced from the agency's DesignRush profileReliance Industries Ltd. Phillips & Cohen Parkk First Solutions
Powering Innovation. Enabling Change.
From design to deployment, Claritus delivers secure, scalable, and user-friendly applications backed by 24/7 support...
Top Services:
- Web Development
- Mobile App Development
- DevOps Consulting
- Cloud Consulting
- IT Services
- Show more
- Location
- Noida, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsClaritus Consulting Services
Data sourced from the agency's DesignRush profileBlue Star ValuePros EnVue Telematics, LLC Aussie Chook Supplies
Claritus Consulting Reviews & Testimonials
Abhijeet Uniyal's Review Sourced from Google
Interview process was very goodGave interview for the post of recruitment profileFirst round went wellAnd, the lady who took my first round of interview was behaving in a very polite and convenient mannerThe second was with one of the guy who told me about the company's process including it's clients and the services they are offering to the clientsAnd, in the end of the second round, the interviewer gave the feedback in a very positive manner that first time I have talked with you so much as I have never talked with any of the candidates before came for the interview and he really liked my confidence and my way of talking and presenting myself in the interviewThe third round was with one mam who asked very relevant questions related to my education qualifications and my past experiences so far in my ex organizationsAnd, I also liked the behaviour of the mam who took my last round of interview because the way she was taking my interview in that manner that no one hasn't taken this type of interview before in any of the companyThis organization is basically a consulting firmAnd, the good thing about is that they have 5 days working policyIf you are applying for the recruiter position in this organization, make sure that you should have relevant experience in that domain and also you should focus on your communication and presentation skills because in interview, they will mostly check your communication skills only and secondly, your experience whatever the work you have done in your past organizations beforeThe nearest metro station to this place is Noida Sector 16 as this place is located very close to the metro station in A block itself
Mehak Khanna's Review Sourced from Google
Claritus Consulting offers a collaborative culture, supportive team, and strong focus on work-life balance—ideal for professional growth.
Rahul Gupta's Review Sourced from Google
I am blessed working with Claritus as it helps me to grow up in the market like learning new technology, getting certified courses and also providing opportunities to work with international clients.The managers have helping nature as they always provide opportunities to prove yourself.HR Team is very polite for all in the company, always ready to help and makes environment of the company interactive.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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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.Â
Core services include:Â
- Functional testing Â
- Performance testing Â
- Security testing Â
- Usability testing Â
- Regression testing Â
- Automation testing Â
- Accessibility testing  Â
- Mobile app testing Â
- API testing Â
- Compatibility testing across devices/browsers Â
- Compliance testing Â
- Testing with artificial intelligence (AI) tools
- QA auditÂ
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. 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








