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.
Geomotiv is an AdTech-focused technology company providing dedicated teams, IT staff augmentation, and custom development services for businesses building and scaling digital platforms...
Top Services:
Software Development
Web Development
Mobile App Development
IoT
Software Testing
Show more
Location
Alexandria, Virginia
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
11 Projects Listed
Geomotiv Services
Software Development
Web Development
Mobile App Development
IoT
Software Testing
AI Development
eCommerce Development
Staff Augmentation
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Rubicon Project
MediaMath
Savveo
PebblePost
Hiro
MedWhat
Travelling Spoon
Trusted Insight
Bright Bright Great
Sante
Data sourced from the agency's DesignRush profile
Geomotiv Reviews & Testimonials
Cathrine Lehto
PMO at Experis
5.0★
Software Development Review from Cathrine Lehto
Geomotivs team is highly skilled and reliable, delivering customized software solutions tailored to our unique business needs. Their transparent communication and agile development process have been exceptional.
Working with Geomotiv has been a positive experience. They consistently deliver high-quality results and adapt to changing requirements with ease. Their expertise and commitment to client success make them a valuable partner for software development projects.
Christopher Rautenberg
Co Founder at Metrofibre
5.0★
Software Development Review from Christopher Rautenberg
Working with GEOMOTIV has been a fantastic experience. There staff fully understand all aspect of software development offering solution that are scalable and personalized to our specific requirement.
Sean Hsieh
Founder & CEO at Concreit
5.0★
HR Tech Solution Review from Sean Hsieh
Implementing Geomotiv's auction platform has transformed our Sales operations. The customizable auctions and secure transactions have streamlined our sales process, resulting in increased efficiency and customer satisfaction
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
SEEDIUM builds & scales web/mobile products globally: full-cycle development & team augmentation
Seedium provides full-cycle development and team augmentation services for startups and SMBs around the world. We focus on progressive mobile & web application development, marketplaces, serverless and microservices solutions, high-load projects, and SaaS platforms...
Top Services:
Software Development
Mobile App Development
AI Development
Web Design
Staff Augmentation
Show more
Location
Tallinn, Estonia
Number of Employees
Under 49
Average Hourly Rate
$35/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
8 Projects Listed
Seedium Services
Software Development
Mobile App Development
AI Development
Web Design
Staff Augmentation
Software Testing
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
HerHeadquoter
Bunch
Smarter Contact
Welcome Renovation
Solo
Sport Stars
Data sourced from the agency's DesignRush profile
Seedium Reviews & Testimonials
Volodymyr Andrushenko
CRO at Genius Software
5.0★
Web Development Review from Volodymyr Andrushenko
Collaborated with Seedium on developing a B2B SaaS platform. The team was very professional and delivered the project on time. They were quick to understand our needs and provide a
perfect solution. We would highly recommend Seedium as a reliable software development partner.
Iryna Seleman
Engagement Manager at Cortance
5.0★
Web Development Review from Iryna Seleman
Seedium didnt just complete the tasks, they genuinely cared about the success of our project. They proposed valuable solutions and improvements that made the original idea even stronger. The work was consistently high-quality, and every feature was delivered to our expectations and standards. We could rely on Seedium completely without micromanaging, as they took full ownership of their responsibilities.
Khrystyna Sliana
Digital marketing manager at Red Jumpers
5.0★
Web Development Review from Khrystyna Sliana
The Seedium team always found the best solutions to our requests and was flexible in their work. They were a perfect fit for our requirements. Working with them, we were confident in delivery and quality. We will definitely keep working with them on our next projects.
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
End-To-End Product Development | Agile Development Teams
Qarbon IT are experts in creating web and mobile applications with over 15 years of experience. We have the experience, knowledge and technical know-how to deliver an innovative digital product that will exceed your expectations. Qarbon IT assists businesses across major industries, such as finance, banking...
Top Services:
Software Development
Mobile App Development
UI/UX Design
eCommerce Development
IoT
Show more
Location
Katowice, Poland
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
27 Projects Listed
Qarbon IT Services
Software Development
Mobile App Development
UI/UX Design
eCommerce Development
IoT
AI Development
Blockchain
Software Testing
Staff Augmentation
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Takamol Holding
Cryptospace
Golem Network
Elvia entertainment ltd
Clubspeed
Holiday park & resort
Komputronik Group
Mann + Hummel
Bay Shore High School Alumni Association
aeternity
Data sourced from the agency's DesignRush profile
Qarbon IT Reviews & Testimonials
Jonasz Wieclawski
Review from Google
5.0★
Jonasz Wieclawski's Review Sourced from Google
The best IT team in Poland I've ever worked with. They solve problems and find solutions to challenges that most people would throw up their hands in disbelief. In my opinion, this is a testament to the caliber and quality of the developers who, to a greater or lesser extent, shape our business's success.
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
Blackthorn Vision is a Microsoft-partnered .NET and AI development company.As a Microsoft Solutions Partner,we help enterprise teams build and modernize complex software products. The solutions we deliver are backed by deep .NET expertise,AI versatility,and a track record of delivering results...
Top Services:
Software Development
Software Testing
AI Development
Mobile App Development
UI/UX Design
Show more
Location
Wroclaw, Poland
Number of Employees
100 - 249
Average Hourly Rate
$40/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
9 Projects Listed
Blackthorn Vision Services
Software Development
Software Testing
AI Development
Mobile App Development
UI/UX Design
IT Services
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Transforming Your Products Tech Foundation: Scaling, Maintainability, and Seamless Usability
Rolique is a comprehensive software development firm, distinguished by an extensive portfolio encompassing more than 110 triumphant endeavors across the domains of healthcare, fintech, and industrial technology sectors...
Top Services:
Web Development
UI/UX Design
Mobile App Development
AI Development
Software Development
Show more
Location
Lviv, Ukraine
Number of Employees
50 - 99
Average Hourly Rate
$65/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
9 Projects Listed
Rolique Services
Web Development
UI/UX Design
Mobile App Development
AI Development
Software Development
Software Testing
DevOps Consulting
Cybersecurity
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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
Virtual Technology Office - An extended execution arm of a CTO.
Facing challenges to scale up tech? Have a biz/tech requirement but no bandwidth to execute? Too many tech projects eating up your time to focus on core business? Connect with us. We provide fractional CTO services in build-operate-transfer models...
Top Services:
IoT
Software Testing
AI Development
Blockchain
Mobile App Development
Show more
Location
Bengaluru, India
Number of Employees
50 - 99
Average Hourly Rate
$25/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
5 Projects Listed
OpenTurf Technologies Services
IoT
Software Testing
AI Development
Blockchain
Mobile App Development
Software Development
VR/AR
Staff Augmentation
Managed Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Boutique studio of senior engineers building web, mobile, and AI products since 2015. We embed as a long-term extension of your team and ship code that lasts. 5.0 on Clutch, top 1% on Upwork...
Top Services:
Web Development
Mobile App Development
Software Development
Software Testing
AI Development
Show more
Location
Los Angeles, California
Number of Employees
Under 49
Average Hourly Rate
$99/hr
Minimal Budget
$25,000 - $50,000
EltexSoft Services
Web Development
Mobile App Development
Software Development
Software Testing
AI Development
Staff Augmentation
IT Services
Engineering
DevOps Consulting
Wearables
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
IT Industry
B2B Industry
Fintech Industry
Data sourced from the agency's DesignRush profile
EltexSoft Reviews & Testimonials
Yana Vlasova
Review from Google
5.0★
Yana Vlasova's Review Sourced from Google
Choose EltexSoft for perfection! LA's best-kept secret in software development. Our experience was top-notch—5 stars all the way!
Dasha Ozerchuk
Review from Google
5.0★
Dasha Ozerchuk's Review Sourced from Google
EltexSoft is a software dream team! Their LA-based wizards turned our ideas into digital magic. 5 stars for excellence!
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.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
ReceiveProposals
For your project
1
Specify your budget, timeline and project requirements
2
Our experts curate a list of up to 5 most qualified candidate agencies
3
We connect you with them so you can choose the most suitable partner