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
11 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.
100% focused on Test Automation to deliver frameworks and solutions that reduce costs & increase efficiency to get better digital products, faster...
Top Services:
Software Testing
Location
Krakow, Poland
Number of Employees
Under 49
Average Hourly Rate
$40/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
4 Projects Listed
Zappletech Services
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Trivago
Couchsurfing International
Tele2
Activated Insights
Zycus Inc
Missguided
iDeals
Maytech
BookingLive
Blue Zinc
Data sourced from the agency's DesignRush profile
Zappletech Reviews & Testimonials
Borg Energy India Manager at South Florida IT Company
5.0★
Software Testing Review from Borg Energy India
Zappletech's automated testing services for my dating platform were exceptional. Their team was professional, responsive, and helpful. They quickly identified vulnerabilities and provided comprehensive reports with actionable recommendations. Zappletech made a significant positive impact on my platform's security. Highly recommended!
Derek Shaw CEO at Derek Shaw Labs
5.0★
Software Testing Review from Derek Shaw
I worked with Zappletech's QA testing team for an educational platform, and their services exceeded expectations. They conducted thorough quality testing, identifying areas for improvement. Their attention to detail ensured a user-friendly and robust platform. Thanks to their efforts, the project gained a substantial user base, attracted by its seamless performance. Zappletech's professionalism and expertise played a crucial role in the platform's success.
Joeri Leeuwerik Sales Photographer at Brandist NYC
5.0★
Software Testing Review from Joeri Leeuwerik
Zappletech tested a psychological counseling project with exceptional quality. Their thorough testing methods and techniques led to improvements that enhanced the project's popularity. The dedicated team of three professionals identified defects, provided recommendations, and ensured comprehensive functionality testing. Zappletech's skilled and committed professionals make them a recommended choice for high-quality QA testing services.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Faster Than Light is an AI-driven custom software development company...
Top Services:
Design Services
Product Design
Web Design
Web Development
Software Testing
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Location
Kyiv, Ukraine
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
15 Projects Listed
Faster Than Light Services
Design Services
Product Design
Web Design
Web Development
Software Testing
Mobile App Development
Software Development
DevOps Consulting
eCommerce Development
Staff Augmentation
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
TUF
TravelStride
Herokey
Kruze Consulting
Equity X
Data sourced from the agency's DesignRush profile
Faster Than Light Reviews & Testimonials
Cristian Zaharia Finance Director at UiPath
5.0★
Mobile App Development Review from Cristian Zaharia
Faster Than Light is a phenomenal development partner. They took the time to truly understand our high-level strategic goals and executed the development flawlessly. Their responsiveness and adherence to timelines were remarkable, making the entire process stress-free. The quality of the final deliverable speaks for itself, and they managed to deliver maximum value within a highly competitive cost structure. They are professional, agile, and transparent. I would absolutely work with them again and highly recommend their services.
Bogdan Savchuk CBDO at Findigo
5.0★
Software Development Review from Bogdan Savchuk
We reached out to Faster Than Light to help build an agritech web solution for harvest management for one of our long-term customers, who launched their new agriculture project. They had to design and build the platform from scratch, ensuring it would handle high loads of data effectively. During the project, I really liked their attention to details and care about the product. As soon as they understood the business needs, they went deep into research to make sure the final product would meet them.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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
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Location
Madison, Wisconsin
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
4 Projects Listed
Mile Marker Services
Software Development
Mobile App Development
Software Testing
UI/UX Design
Staff Augmentation
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
ToughClicks
Dayta
Rebate Bus
Data sourced from the agency's DesignRush profile
Mile Marker Reviews & Testimonials
Clay Burdelik Founder at ToughClicks
5.0★
Software Development Review from Clay Burdelik
Mile Marker was fantastic to work with. They made a rock solid plan and executed in an agile manner ensuring our product was built to the requirements of our customers. Mile Marker's transparency and communication ensured we knew how the project was progressing and had opportunities to provide our input to help shape our product. Having the lived experience of being founders, Mile Marker's team guided us through decision making proessess and helped to find the right balance between feature sets, security, scalability, cost, and time. Mile Marker joined customer calls to provide a technical expertise to our sales process and helped ensure our platform's security was viewed positively by Fortune 500 IT teams. Mile Marker's highly skilled team helped expedite our business and was a key factor to our early success.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
The one-stop shop for early-stage digital startups to get their products built! Get started with our product-as-a Service model today, save on hiring costs, and let us become your second brain...
Top Services:
Digital Services
Product Design
Software Development
UI/UX Design
Web Development
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Location
Fahrwangen, Switzerland
Number of Employees
Under 49
Average Hourly Rate
$40/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
3 Projects Listed
Pyango Services
Digital Services
Product Design
Software Development
UI/UX Design
Web Development
Mobile App Development
Web Design
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Kanbii Solutions AG
Sunrise UPC
RepRisk AG
InterSpitzen AG
Zurich University of Applied Sciences
Unic AG
Byteful GmbH
Creaitor AG
Donate My Way
Data sourced from the agency's DesignRush profile
Pyango Reviews & Testimonials
julia devecchi Review from Google
5.0★
julia devecchi's Review Sourced from Google
We partnered with Pyango for the tech needs of our business. They managed everything for us from an initial sketch of a website to a fully functioning site with a beautiful front-end and an easily customisable back-end. The communication was easy and they were always quick to respond. I can recommend working with Colin who also has a great understanding for explaining techy things to a business person.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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 View All Reviews
We are a team of enthusiastic individuals specialised in developing small to medium size web applications. Most of our experience is with data entry front ends with reports and statistics section, but also web mapping/GIS projects.Provide us with the details, and we'll discover the optimal solutions for...
Top Services:
Software Development
Web Development
eCommerce Development
IT Services
DevOps Consulting
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Location
Iași, Romania
Number of Employees
Under 49
Average Hourly Rate
$30/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
newroco Services
Software Development
Web Development
eCommerce Development
IT Services
DevOps Consulting
Cloud Consulting
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Oxford Archaeology
Cotsworld Archaeology
CP1 Associates Limited
Calmnest LLC
Data sourced from the agency's DesignRush profile
newroco Reviews & Testimonials
Adina Gateste Acasa Review from Google
5.0★
Adina Gateste Acasa's Review Sourced from Google
Excellent service and I'm highly appreciative of Lucian and his amazing team. I needed a great website and they got the job done in record time and no delays.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Innovating today to shape the success of tomorrow.
We transform visionary ideas into innovative, future-ready solutions that drive sustainable growth and long-term success. z3x is a strategic partner for businesses seeking innovation, and sustainable growth...
Top Services:
Digital Strategy
Business Consulting
Software Development
Market Research
Staff Augmentation
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Location
Gdansk, Poland
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
$1,000 - $10,000
z3x Tech Care Group Services
Digital Strategy
Business Consulting
Software Development
Market Research
Staff Augmentation
Software Testing
Mobile App Development
eCommerce Development
WordPress Website Design
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Efficient and scalable custom applications. Reduce your costs with our development team.
At Innovare Software SRL, we prioritize a serious approach to software development. With a steadfast commitment to innovation and excellence, we strive to deliver cutting-edge solutions that meet the evolving needs of our clients. Our dedication to quality ensures that every project is handled with the utmost...
Top Services:
Software Development
Mobile App Development
VR/AR
AI Development
Software Testing
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Location
Reconquista, Argentina
Number of Employees
Under 49
Average Hourly Rate
$25/hr
Minimal Budget
$1,000 - $10,000
Innovare Software SRL Services
Software Development
Mobile App Development
VR/AR
AI Development
Software Testing
Staff Augmentation
IT Services
Business Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Evitras Technologies is a reliable, leading provider of personalized web-based solutions, including turnkey website and mobile app development. Their experienced team of developers delivers top-quality results that enhance businesses' digital presence...
Top Services:
UI/UX Design
Web Development
Web Design
eCommerce Development
Software Development
Show more
Location
Thrissur, India
Number of Employees
Under 49
Average Hourly Rate
$25/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
Evitras Services
UI/UX Design
Web Development
Web Design
eCommerce Development
Software Development
Mobile App Development
Direct Marketing
Branding
Logo Design
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Small Business Industry
Automotive Industry
Marketing Industry
Data sourced from the agency's DesignRush profile
Evitras Reviews & Testimonials
Shiva Kumar Angirga Review from Google
5.0★
Shiva Kumar Angirga's Review Sourced from Google
Evitras is our technical partner in a project and we have been working closely with Evitras since more than a year. They have great pateince to go through the project and strive their best to deliver the expectations. When we started with them, it was just a bet that this would work. Now looking back, we can say whole heartedly, Evitras is the best we can get on our project. In a year long journey, especially during covid, the way they handled project is impressive. Nikhil, the point of contact for our project, displayed great characteristics of project progress and we would love to work with them again.Ps: This isn't a promotional write up for them, but the Goodwill they have earned. All the best Evitras and whole team.
Sreejith P Review from Google
5.0★
Sreejith P's Review Sourced from Google
Great team with innovative ideas. Satisfied with my website and mobile app development. Deadline was met with quality work. Highly appreciated.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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
Show more
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 View All Reviews
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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