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
8 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.
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Software& IT Industry
Energy Industry
Education Industry
Entertainment Industry
Health Care Industry
Transportation & Logistics Industry
Data sourced from the agency's DesignRush profile
Aristek Systems Reviews & Testimonials
Undisclosed
CEO at E-Commerce Development Company
5.0★
Web Development Review from Undisclosed
Aristek Systems developed, tested, and released a new website for an e-commerce development company. The team utilized Ruby on Rails, Elixir, Phoenix Framework, JavaScript, GraphQL, PostgreSQL, and AWS. Aristek Systems was able to deliver a fully functional software, much to the client's delight. The team was highly communicative, and internal stakeholders were particularly impressed with the vendor's professionalism and attention to detail.
Undisclosed
Product Design Manager at Educational Digital Platform
5.0★
Web Design Review from Undisclosed
Aristek Systems has redesigned the UI/UX of an existing educational digital platform. The team has refreshed the interface and added new features to deliver a more comprehensive experience for users. The client is satisfied with Aristek Systems' work and performance. The team delivers within the specified timeframe and manages the project seamlessly. Moreover, they stand out for their availability, problem-solving capabilities, and amazing work culture; they're easy to work with.
Anonymous
CTO at Business Consulting Company
5.0★
Software Development Review from Anonymous
I had the privilege of working with Ruslan and his team at Aristek for the past three years. It is hard to find that level of dedication in an offshore vendor/partner but Ruslan and the Aristek team deliver it. I would highly recommend Ruslan and Aristek to anyone needing an expert level partner in EdTech and SaaS platform development.
Reviews verified by DesignRush and sourced from the agency's profile
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Troy Web Consulting is a trusted guide for organizations, delivering high-quality, practical software solutionscustom web apps, mobile apps, and websiteson time and on budget. We specialize in solving business challenges through custom tailored software development...
Top Services:
Software Development
Mobile App Development
eCommerce Development
AI Development
Software Testing
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Location
Cohoes, New York
Number of Employees
Under 49
Average Hourly Rate
$155/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
27 Projects Listed
Troy Web Consulting Services
Software Development
Mobile App Development
eCommerce Development
AI Development
Software Testing
Web Development
WordPress Website Design
Web Design
UI/UX Design
Design Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Advantedge Education
Center for Internet Security
Davis Vision
MyEssentials
Etransmedia
FortOrangePress
GroundWater Protection Council
LeadingAge
NYSERDA
The Enneagram Institute
Data sourced from the agency's DesignRush profile
Troy Web Consulting Reviews & Testimonials
Mei Huang
Review from Google
5.0★
Mei Huang's Review Sourced from Google
I had a fantastic experience working at Troy Web Consulting. The team is incredibly supportive and welcoming. I worked on real client projects that helped me grow my technical skills and confidence. The culture is awesome, flexible, collaborative, and fun. You truly feel like part of the team from day one. Highly recommend.
Stephen Higgins
Review from Google
5.0★
Stephen Higgins's Review Sourced from Google
My relationship with Troy Web Consulting began in 2019, and I am very proud to say it still continues. Their experience and expertise is second to none, and their incredible customer service makes communication between you and your project manager and the team something you look forward to. It has truly been an enjoyable experience growing my company with the help and abilities of such a great group. A special thanks goes out to Anthony and Mark, two of the best to work with.
Caring Gene
Review from Google
5.0★
Caring Gene's Review Sourced from Google
Troy Web took over the maintenance and service contract for our in depth healthcare career information and job posting website. Their ability to seamlessly take ownership, clean up and bring our site into a stable wordpress environment was done not only quickly, but also flawlessly. During our time with Troy Web, a number of updates and additional features were required to be built. They were not only able to build these aspects, but also to correct past build issues in the process making the site more reliable on a daily basis. In the last 6 months of their service we didn’t experience any unforeseen downtime with our website, which is extremely important to the function of our site for those that access and use it on a daily basis. Troy Web provides an exceptional service with a team that is always available and very knowledgeable.
Reviews verified by DesignRush and sourced from the agency's profile
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Empowering Minds, Enriching Futures With Innovative EdTech Solutions
At Aimeice Tech., we're on a mission to revolutionize the education landscape through innovation and inspiration. As a premier education software development company, we specialize in crafting bespoke EdTech solutions that elevate the learning experience...
Top Services:
Software Testing
Mobile App Development
Software Development
AI Development
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Location
Fort Lauderdale, Florida
Number of Employees
Under 49
Average Hourly Rate
$35/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
1 Project Listed
Aimeice Services
Software Testing
Mobile App Development
Software Development
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Designing and Building Platforms for Your AI Bot Development.
ISBX (Interactive, Strategy, Branding, Execution) stands as the premier web and mobile application development agency in Southern California, boasting extensive expertise across a diverse spectrum of digital services such as Mobile, Blockchain, IoT, Web3, and Web Development. With a track record of...
Top Services:
Software Development
Mobile App Development
Web Development
Blockchain
IoT
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Location
Los Angeles, California
Number of Employees
50 - 99
Average Hourly Rate
$150/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
7 Projects Listed
ISBX Services
Software Development
Mobile App Development
Web Development
Blockchain
IoT
UI/UX Design
Web Design
Wearables
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Apple
RedBull
Lexus
American Honda
Brain Corp
Science 37
WAG!
USC
Pasco Scientific
Data sourced from the agency's DesignRush profile
ISBX Reviews & Testimonials
Peggy McCabe
Review from Google
5.0★
Peggy McCabe's Review Sourced from Google
ISBX is a very professional and talented web development company. The overall experience I had with them in the redesign of our website was outstanding. They were extremely creative, provided viable options at all junctures, and delivered on time and on budget. ISBX also provided a very hands-on, and professional team who understood our need for brand engagement and outreach to a new audience with our website refresh. The team also optimized the new site for mobile usage which was very important to us. ISBX successfully executed our complex project efficiently, with excellent communication and attention to detail at every step. I wouldn't hesitate to work with them again.
Kim Farley
Review from Google
5.0★
Kim Farley's Review Sourced from Google
ISBX helped us from concept to launch without any issues. They were communicative, patient, and able to quickly implement solutions to project changes that came up along the way. We appreciate that they took the time to hold our hands with explanations and detailed questions to make the process as stress free as possible and to get a good understanding of our product.
Tony Alfaro
Review from Google
5.0★
Tony Alfaro's Review Sourced from Google
I've been a client of ISBX for nearly three years. They are hands down the best development firm I have ever worked with. They are on budget and on time consistently. They are trustworthy, highly communicative, and very versatile. Nothing is in the "too hard box" for them.
Reviews verified by DesignRush and sourced from the agency's profile
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Desun Technology Pvt. Ltd. is a leading software development company in Kolkata, specializing in comprehensive IT services, including web development and mobile app development. Our cutting-edge technology solutions empower businesses to thrive in the digital era. Elevate your business with Desun Technology...
Top Services:
Web Development
Digital Services
Branding
eCommerce Development
Mobile App Development
Show more
Location
Kolkata, India
Number of Employees
Under 49
Average Hourly Rate
$15/hr
Minimal Budget
$25,000 - $50,000
Desun Technology Pvt. Ltd. Services
Web Development
Digital Services
Branding
eCommerce Development
Mobile App Development
Software Development
Software Testing
Staff Augmentation
DevOps Consulting
CRM Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aryabhatt Polytechnic
Bengal Law College
Castle Realty Zone
Data sourced from the agency's DesignRush profile
Desun Technology Pvt. Ltd. Reviews & Testimonials
Akhil Ahire
Business Systems Analyst at Berkadia
5.0★
Web Development Review from Akhil Ahire
The Desun Technology team is a true partnership. They take the time to understand the business requirements behind our specifications in order to solve/build solutions that best fit our needs. The team is great with communication and proactively checking in with us. The development team is great - open to constructive feedback - and dedicated to quickly releasing new elements of our application.
Akhil Ahire
Business Systems Analyst at Berkadia
5.0★
Web Development Review from Akhil Ahire
The Desun Technology team is a true partnership. They take the time to understand the business requirements behind our specifications in order to solve/build solutions that best fit our needs. The team is great with communication and proactively checking in with us. The development team is great - open to constructive feedback - and dedicated to quickly releasing new elements of our application.
Brittany Melanson
Senior Graphic Designer and Marketing Coordinator at CHC Solutions, Inc.
5.0★
Mobile App Development Review from Brittany Melanson
The team at Desun Technology including my amazing project/product manager went above and beyond and exceeded all expectations from start to finish. I could not speak more highly of them!! They have proven to be dedicated, passionate, highly skilled and very knowledgeable so my experience to date has been nothing short of fantastic! A special thanks to their (Project/Product Manager) and the design/development team for making my project a great success!
Reviews verified by DesignRush and sourced from the agency's profile
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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
TechForce Services Services
Managed Services
CRM Consulting
Cloud Consulting
DevOps Consulting
Software Testing
Mobile App Development
Software Development
AI Development
IT Services
Staff Augmentation
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Torrens (Laureate)
ModernStar
Centuria
INSW
ICMS
Data sourced from the agency's DesignRush profile
TechForce Services Reviews & Testimonials
Harendra Singh
Review from Google
5.0★
Harendra Singh's Review Sourced from Google
TechForce Services has been a fantastic partner in helping us optimize our Salesforce platform. Their team is highly responsive, knowledgeable, and always willing to go the extra mile to ensure our success. We've seen significant improvements in our sales processes and overall efficiency thanks to their expertise. We can't recommend them enough!
Sharmistha Rath
Review from Google
5.0★
Sharmistha Rath's Review Sourced from Google
I had the pleasure of working with TechForce Services on a Salesforce implementation project, and I must say, their outstanding work was truly impressive.
From the outset, TechForce Services demonstrated their expertise, professionalism, and dedication to delivering quality results. They took the time to fully understand our business needs and provided a customized solution that not only met but exceeded our expectations.
Throughout the project, the TechForce Services team was always available to answer any questions or concerns we had, providing timely updates and going above and beyond to ensure that the implementation was seamless. They also provided comprehensive training to our team, enabling us to use the new Salesforce platform with ease.
Thanks to TechForce Services, our sales and marketing teams are now able to collaborate more efficiently, and we've been able to streamline our entire sales process. The implementation has helped us improve our productivity and had a positive impact on our bottom line.
Overall, I highly recommend TechForce Services for any Salesforce implementation project. Their team is top-notch, and their commitment to customer satisfaction is exceptional. If you're looking for a reliable and experienced partner for your Salesforce needs, TechForce Services is the way to go.
Rakesh Bhujabal
Review from Google
5.0★
Rakesh Bhujabal's Review Sourced from Google
TechForce Services is highly recommended for their outstanding work on Salesforce implementation project for my Org. I must say, the team is very professional, knowledgeable, and dedicated to delivering exceptional results.
Thanks to their expertise, we've streamlined our processes and improved productivity in our Edu business. If you're looking for a reliable Salesforce partner, TechForce Services is the way to go.
Reviews verified by DesignRush and sourced from the agency's profile
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Your Expert Web & Mobile Development Partner
.
Take advantage of our 13+ years of experience in building and launching web and mobile custom software solutions. Extend your team with the top web & mobile developers for your short-term and long-term projects, from MVPs to a completed solution...
Top Services:
Software Development
Mobile App Development
Software Testing
Web Design
UI/UX Design
Show more
Location
Alexandria, Egypt
Number of Employees
Under 49
Average Hourly Rate
$49/hr
Minimal Budget
$25,000 - $50,000
Enozom Software Services
Software Development
Mobile App Development
Software Testing
Web Design
UI/UX Design
Web Development
WordPress Website Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Since 2006, X-Team has helped companies scale high-performing engineering teams by connecting them with elite remote developers from around the world...
Top Services:
IoT
Software Testing
Blockchain
VR/AR
Mobile App Development
Show more
Location
Austin, Texas
Number of Employees
500 - 999
Average Hourly Rate
$99/hr
Minimal Budget
$25,000 - $50,000
X-Team Services
IoT
Software Testing
Blockchain
VR/AR
Mobile App Development
Staff Augmentation
Cybersecurity
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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