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.
We are a small boutique agency dedicated to medical, technical, fintech, IT and automotive translation, localization and quality assurance services...
Top Services:
Translation Services
Business Consulting
Software Testing
eCommerce
Web Development
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Location
Athens, Greece
Number of Employees
Under 49
Average Hourly Rate
$1/hr
Minimal Budget
Under $1,000
MTLT Services
Translation Services
Business Consulting
Software Testing
eCommerce
Web Development
UI/UX Design
Digital Services
Video Production
AI Development
Graphic Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Meta
United Language Group
Little Onion Design
Binance
Data sourced from the agency's DesignRush profile
MTLT Reviews & Testimonials
Helena Kotoula, she/her/hers
Translator at Eleni Kotoula translation and interpretating services
5.0★
Translation Services Review from Helena Kotoula, she/her/hers
MLTI is an outstanding choice for high-quality translation services. Their accuracy and professional approach truly stand out, ensuring that every project is delivered with utmost precision and reliability.
Their pricing is competitive, offering excellent value for money without compromising quality. Additionally, their speed and adherence to deadlines are remarkable, making them a trusted partner for time-sensitive projects.
I highly recommend MLTI for anyone seeking dependable and efficient translation services. Their commitment to excellence is evident in every aspect of their work.
Elissavet Botsaki, BA, MA, Greek Localization Specialist
Linguist at Welocalize
My collaboration with Popie and the MTLT team overall has been an exciting and professional one since day one when we started the project. Although our demands were high and the timeframe very tight, the team managed to exceed our expectations with their professionalism and the execution of their structured plan. It is quite impressive to see that, in uncertain times like ours, there are still professionals who don't sacrifice quality.
Georgina Razack
Co-Founder at Little Onion Design
5.0★
Website Translation Review from Georgina Razack
I couldnt be more impressed with the translation services provided by MTLT. Their professionalism, attention to detail, and seamless communication made the entire process smooth and efficient. They not only delivered high-quality translations but also worked collaboratively with us to ensure the tone and message of our website remained consistent across languages. The teams expertise and commitment to excellence were evident throughout, and I highly recommend them for any translation needs!
Reviews verified by DesignRush and sourced from the agency's profile
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Microsoft Solutions Partner & Software Consultants
Code Creators is a dynamic SharePoint development company that specializes in creating innovative solutions for businesses worldwide. With a comprehensive range of services, we offer SharePoint consulting, custom Power BI development, mobile app & web application development, IT consulting...
Top Services:
Web Development
Mobile App Development
Software Development
Big Data Analytics
AI Development
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Location
Mississauga, Canada
Number of Employees
100 - 249
Minimal Budget
Under $1,000
Code Creators Services
Web Development
Mobile App Development
Software Development
Big Data Analytics
AI Development
eCommerce Development
Web Design
IoT
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Ther App
BSEM
Khadamati App
Data sourced from the agency's DesignRush profile
Code Creators Reviews & Testimonials
Web Creativity Solution
Review from Google
5.0★
Web Creativity Solution's Review Sourced from Google
Code Creators is the best in its field and very professional. They are the best provider of SharePoint and mobile app development services. I can only recommend them to everyone.
Scott Ruiz
Review from Google
5.0★
Scott Ruiz's Review Sourced from Google
I had a great experience working with Code Creator. They took my vision for a mobile app and turned it into a reality. Along with Support is quite good and always available to Answer for helping customers. I highly recommend using Code Creators for those whose are looking for mobile app design services.
Reviews verified by DesignRush and sourced from the agency's profile
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At Terratra, we focus on quality, using advanced technology to deliver exceptional translation services. Our innovative solutions help businesses overcome language barriers and expand globally with confidence...
Top Services:
Audio Production
Digital Strategy
Branding
UI/UX Design
CRO
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Location
Maardu, Estonia
Number of Employees
Under 49
Average Hourly Rate
$30/hr
Minimal Budget
Under $1,000
Terratra Services
Audio Production
Digital Strategy
Branding
UI/UX Design
CRO
SEO
Translation Services
Transcription Services
Software Testing
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
InnoLaw
GRMN CONNECT OĂś
Microsoft
ASOS
Amazon
Data sourced from the agency's DesignRush profile
Terratra Reviews & Testimonials
Antje Mertz
Review from Google
5.0★
Antje Mertz's Review Sourced from Google
Terratra was one of my first clients when I started working as a freelance translator full-time. I appreciate their detailed instructions, responsiveness and swift payment. I can't think of a better client to start out with, and will gladly continue to work with them in the future.
Guilherme De Faria Martins Da Silva
Review from Google
5.0★
Guilherme De Faria Martins Da Silva's Review Sourced from Google
Great company to work for, reliable, pays on time and offers great projects! Olga is an amazing PM!
Christina Passenger-Tarapata
Review from Google
5.0★
Christina Passenger-Tarapata's Review Sourced from Google
I can really recommend Terratra, over several months I got to know them as a very professional company with a high focus on quality, timely payments and also fantastic communication and organisational skills - special thanks to project manager Olga.
Reviews verified by DesignRush and sourced from the agency's profile
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Etech All is a leading software development company specializing in creative web design and robust web development solutions. We help businesses build a powerful online presence through innovative, user-focused, and results-driven digital experiences. Our expert team delivers customized, high-quality...
Top Services:
Web Development
WordPress Website Design
Mobile App Development
Software Development
Software Testing
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Location
Miami, Florida
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Minimal Budget
Under $1,000
Etech All Services
Web Development
WordPress Website Design
Mobile App Development
Software Development
Software Testing
IT Services
eCommerce Development
Web Design
Logo Design
Digital Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
At LN Solutions , our mission is simple: to empower businesses with the tools and strategies they need to succeed online. Whether it's creating stunning websites, implementing effective digital marketing campaigns, or developing custom software solutions, we are here to help our clients achieve their goals...
Top Services:
Digital Services
Web Development
Social Media Marketing
eCommerce
AI Development
Show more
Location
Schaumburg, Illinois
Number of Employees
Under 49
Minimal Budget
Under $1,000
LN Solutions Services
Digital Services
Web Development
Social Media Marketing
eCommerce
AI Development
Software Development
Mobile App Development
Software Testing
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Modus Tech
PatentOAResponse
Shah Trading Company
Mark Distributor
Gokul Wholesale
SP Inventory
Huntley Crossing Luxury Apartments
Patel Jewelers
Luv2Smoke
Armanetti's Wine and Spirit Huntley
Data sourced from the agency's DesignRush profile
LN Solutions Reviews & Testimonials
Bob patel
Review from Google
5.0★
Bob patel's Review Sourced from Google
Great digital marketing service for my hotel and liquor store.had a wonderful experience with the whole team.highly recommended for social media marketing
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.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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