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.
VerifiedVerified by the DesignRush team for authenticity and credibility.
Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Azumo helps businesses build intelligent apps by providing top-tier developers skilled in AI, data engineering and enterprise web & mobile applications. Our expertise has earned the trust of industry leaders like Facebook, Twitter, Discovery, Zynga, and NCSoft...
Top Services:
AI Development
Software Development
Staff Augmentation
Mobile App Development
Big Data Analytics
Show more
Location
San Francisco, California
Number of Employees
100 - 249
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
Portfolios Count
9 Projects Listed
Azumo Services
AI Development
Software Development
Staff Augmentation
Mobile App Development
Big Data Analytics
DevOps Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Discovery Channel
Meta
Zynga
Jostens
Assembled Brands
NGL
NCSoft
Twitter
Horoscope.com
Bento
Data sourced from the agency's DesignRush profile
Azumo Reviews & Testimonials
Michael S.
Director at Software Development Company
5.0★
Software Development Review from Michael S.
We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.
Anonymous
CTO at Healthcare Company
5.0★
UI/UX Design Review from Anonymous
Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.
Anonymous
VP Product & Engineering at Sales & Mktg Software Company
5.0★
Software Development Review from Anonymous
Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
Softeq is a versatile technology and Greentech company offering a wide range of services, including embedded system development, machine learning, digital transformation, hardware design, UX/UI design, and more...
Top Services:
Mobile App Development
Software Development
Software Testing
Blockchain
Wearables
Show more
Location
Houston, Texas
Number of Employees
250 - 499
Average Hourly Rate
$80/hr
Minimal Budget
$50,000 & Up
Portfolios Count
8 Projects Listed
Softeq Services
Mobile App Development
Software Development
Software Testing
Blockchain
Wearables
UI/UX Design
Cybersecurity
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Lenovo
Epson
Microsoft
WTA
NVIDIA
Verizon
G.J.Gardner
Walt Disney Parks and Resorts
Happiest Baby
Data sourced from the agency's DesignRush profile
Softeq Reviews & Testimonials
Quan Gan
Owner at Gantom Lighting & Controls
5.0★
Software Development Review from Quan Gan
We collaborated with Softeq to develop an infrared emitting platform. Softeq provided software development and support services, streamlining our project. While our hardware technology was excellent, Softeq elevated our company's products with superb software development and implementation solutions. Working with Softeq was highly beneficial for us, as the agency managed our projects more efficiently due to exceptional project management and organized workflows.
Jeff Johnston
Founder and Chief Executive Officer at A-List Enterprises
5.0★
Mobile App Development Review from Jeff Johnston
We hired Softeq for mobile app development services. Softeq developed a functional and user-friendly app, efficiently integrating productivity features like calendar, contacts, and task management. The agency organized regular meetings with our product management department, communicated effectively, and promptly resolved issues. Softeq's team worked diligently and provided valuable insights. We were satisfied with Softeq's services.
Trent Gardner
Information Technology (IT) Manager at G.J. Gardner Homes
5.0★
Software Development Review from Trent Gardner
We worked with Softeq for software redevelopment services to improve our company's proprietary software. Softeq updated the business platform, streamlining operations and enhancing the platform's user UI and functionality. This improvement aided our sales, job estimating, purchase orders, and administration efforts. Softeq's team was professional, attentive, and prompt in implementing feedback. The agency delivered high-quality work, impressing our company's internal stakeholders.
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
Smartym Pro is a full-cycle development company specialized in mobile application and enterprise web development. Company has strong development culture and focuses on innovative solutions, using cutting edge technologies and frameworks. Smartym Pro is located in Eastern Europe and consists primarily of...
Top Services:
Software Development
Mobile App Development
Staff Augmentation
Blockchain
IT Services
Show more
Location
Warsaw, Poland
Number of Employees
50 - 99
Average Hourly Rate
$45/hr
Minimal Budget
$50,000 & Up
Portfolios Count
9 Projects Listed
Smartym Pro Services
Software Development
Mobile App Development
Staff Augmentation
Blockchain
IT Services
Web Development
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Coach-Apps
Heineken
Automagic
Pepsico
Sony (retailers)
Data sourced from the agency's DesignRush profile
Smartym Pro Reviews & Testimonials
Shaun Bennie
Director at in5pire
5.0★
Software Development Review from Shaun Bennie
Co-funding’s collaboration with Smartym Pro began from discovery stage and design services for our online investor automation platform. In these initial stages Smartym demonstrated great skill and aptitude which convinced us to appoint them for the full MVP development part of the project.
Smartym Pro’s team offered their vision to improve the quality of the delivered product. They met all deadlines and were keen to give great advice. It was a pleasure to work with Smartym Pro’s team.
Aleksander Stepanowicz
CFO, co-founder at D-Factor Sp. z o.o.
4.8★
Outsourcing Review from Aleksander Stepanowicz
The Smartym Pro’s team has solid experience in development of web/mobile apps, blockchain platforms and smart contracts. We collaborate with Smartym Pro since June 2018 on 4 projects and are satisfied so far. The team is aware of cutting edge trends in emerging technologies and demonstrate willingness to contribute to the projects in an informal and creative way. And what is very important for us they tend to meet deadlines.
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
ITRex delivers end-to-end AI and data solutions from strategic planning to real-world deployment. The companys expertise spans LLM integration, RAG, copilots, SLMs, and autonomous AI agents, all engineered for reliability and scale...
Top Services:
Software Development
Mobile App Development
Software Testing
AI Development
IoT
Show more
Location
Aliso Viejo, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
ITRex Group Services
Software Development
Mobile App Development
Software Testing
AI Development
IoT
Blockchain
IT Compliance Solution
IT Services
Big Data Analytics
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Dollar Shave Club
Jib Jab
21st Century Fox
Procter & Gamble
Meet Me
Dun & Bradstreet
Data sourced from the agency's DesignRush profile
ITRex Group Reviews & Testimonials
Tammy Walker
Owner at Retail Company
5.0★
IT Services Review from Tammy Walker
Extremely creative and awesome company name. It sounds trustworthy.
Undisclosed
Product Owner at Global retailer
5.0★
Web Development Review from Undisclosed
We are making in minutes things that our teams have been stuck with for days before.
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
Indeema is a global IoT engineering company. Our team works across the entire technology stack, including firmware development, electronics engineering, cloud platforms, data processing, and web and mobile applications...
Top Services:
Software Development
IoT
Mobile App Development
Wearables
AI Development
Show more
Location
Wroclaw, Poland
Number of Employees
100 - 249
Average Hourly Rate
$50/hr
Minimal Budget
$50,000 & Up
Portfolios Count
8 Projects Listed
Indeema Software Services
Software Development
IoT
Mobile App Development
Wearables
AI Development
Software Testing
Web Design
IT Services
DevOps Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
UDB
Viking Scada
Ads blocker
UBreez
Dol-Sensors
Alice
ShotKam
Dog Cloud
iReDS
Data sourced from the agency's DesignRush profile
Indeema Software Reviews & Testimonials
Ted Selden
COO at TouchMD
5.0★
Mobile App Development Review from Ted Selden
They actually suggest things to us. They find better ways of doing things, so they really strive to give their input and their suggestions, which is really nice rather than just building something we are asking them to build.
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
Innolab AI builds revenue engines, not just software. Jane creates pipeline. Luna closes it.
Innolab AI builds AI systems that sell for you.
Jane replaces SDR teams with automated, hyper-personalized outbound.
Luna calls and books meetings 24/7 with human-like conversations.
We help B2B leaders generate pipeline, cut admin time, and scale revenue without chaos...
Top Services:
AI Development
Mobile App Development
Web Development
Software Testing
Blockchain
Show more
Location
Columbus, Ohio
Number of Employees
50 - 99
Average Hourly Rate
$59/hr
Minimal Budget
$50,000 & Up
Portfolios Count
2 Projects Listed
Innolab Services
AI Development
Mobile App Development
Web Development
Software Testing
Blockchain
Staff Augmentation
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Flonest
Dollar Shave Club
Buddy Lee Jump ropes
Data sourced from the agency's DesignRush profile
Innolab Reviews & Testimonials
Buddy Lee
CEO at Buddy Lee Jump Ropes
5.0★
B2C Apps Review from Buddy Lee
Innolab delivered exactly what we needed a high quality, AI powered jump training app with realtime feedback and sleek design.
The team was professional, collaborative, and hit every milestone on time. Highly recommend them for any innovative app development.
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
Supercharge - Innovating Digital Product Development
At Supercharge, we partner with our clients to turn disruption into opportunity by creating transformative digital solutions. With over 200 digital experts across New York, London, Amsterdam, Helsinki, Vienna, and Budapest, we develop digital strategies, design delightful interfaces, and build robust software...
Top Services:
Software Development
AI Development
Digital Services
Product Design
Mobile App Development
Show more
Location
London, United Kingdom
Number of Employees
100 - 249
Minimal Budget
$50,000 & Up
Portfolios Count
6 Projects Listed
Supercharge Services
Software Development
AI Development
Digital Services
Product Design
Mobile App Development
Digital Strategy
IoT
UI/UX Design
Software Testing
Managed Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
A top custom software development firm dedicated to delivering bespoke digital products that drive innovation and help you achieve your brand goals. A full-stack developer with expertise in every major platform and language, we design and deliver custom applications and host and maintain the solutions we...
Top Services:
Software Development
Mobile App Development
UI/UX Design
Software Testing
WordPress Website Design
Show more
Location
Spring, Texas
Number of Employees
Under 49
Average Hourly Rate
$150/hr
Minimal Budget
$50,000 & Up
Espresso Moon Services
Software Development
Mobile App Development
UI/UX Design
Software Testing
WordPress Website Design
eCommerce Development
Web Development
AI Development
VR/AR
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
DistributionNOW
Tesla
Nucor Steel
Everest Funeral Concierge
Flexitallic
Solvay Dental
Stream Realty
Wilson Perumal
Neuhaus Academy
SafeFleet
Data sourced from the agency's DesignRush profile
Espresso Moon Reviews & Testimonials
Bradley Collins
Review from Google
5.0★
Bradley Collins's Review Sourced from Google
Working with the guys at Espresso Moon (Scott, Doug, Tim and Dwayne) was truly a great collaboration and experience. They didn't just throw a website together for us, they helped us to reinvent ourselves. They go out of their way to get to know you and your business to the fullest extent, and that is a quality that is not often seen. If I were to recommend a web design/hosting company to anyone, Espresso Moon would be the one and only name I give. Thank you for your service and support!
Meredyth Jones
Review from Google
5.0★
Meredyth Jones's Review Sourced from Google
I worked primarily with Scott, Tim and Doug to build a fairly complicated site: Paypal/credit card payments, video training modules, a graded quiz, and issuance of a completion certificate. They were the only website company that invited me to an in-person meeting and that was tremendously helpful in me understanding how they work and them understanding my goals. Large Animal Consulting & Education launched 2 days ago and the site is running smoothly. I'm very happy with the site they designed (they also designed my logos) and am looking forward to using them to support and add to the site down the road.
Caleb Schallert
Review from Google
5.0★
Caleb Schallert's Review Sourced from Google
Doug Wheeler is the owner of Espresso Moon and he has provided my small business excellent IT technical support for our website. His team helped me out by removing malicious code that was affecting my site right after the Heart Bleed epidemic last year. He got my site back up and running so i could continue business and save my online reputation. I would recommend Espresso Moon LLC to anyone in need of a new website or mobile application because they follow through with what they promise to do, on time and on budget. They are truly a pleasure to work with!
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
AI enablement and custom AI development company helping enterprises and mid-market leaders adopt, scale, and succeed with AI - faster, safer, and smarter. We simplify the complexity of enterprise AI by guiding organizations from strategy to deployment, combining consulting, custom development, and proven AI...
Top Services:
Product Design
UI/UX Design
AI Development
IoT
Software Development
Show more
Location
Zagreb, Croatia
Number of Employees
50 - 99
Average Hourly Rate
$100/hr
Minimal Budget
$50,000 & Up
Margins Services
Product Design
UI/UX Design
AI Development
IoT
Software Development
Software Testing
Mobile App Development
Design Services
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
John Hopkins University
Mars
Croatian Medical Chamber
Data sourced from the agency's DesignRush profile
Margins Reviews & Testimonials
Marko Bajlo
Review from Google
5.0★
Marko Bajlo's Review Sourced from Google
I’ve got a chance to cooperate with agency, very professional and problem solving oriented team!
Reviews verified by DesignRush and sourced from the agency's profile
View All Reviews
Your leading data and product engineering partner.
EmbarkingOnVoyage Digital Solutions is your premier partner in data and product engineering, empowering technology companies, large enterprises, and SMBs to transform industries such as travel, healthcare, banking, finance, and more through innovative solutions. We specialize in revolutionizing technology and...
Top Services:
Digital Services
Mobile App Development
Software Development
Software Testing
Web Design
Show more
Location
Pune, India
Number of Employees
50 - 99
Average Hourly Rate
$40/hr
Minimal Budget
$50,000 & Up
EmbarkingOnVoyage Services
Digital Services
Mobile App Development
Software Development
Software Testing
Web Design
UI/UX Design
DevOps Consulting
Staff Augmentation
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
InnovationM is top mobile application developers in Noida. Best Mobile app development services in Noida, Delhi, NCR, Gurgaon, India. Trusted mobile app designer and developer in Noida, Delhi, Gurgaon, India. Trusted mobile application development company in Delhi, Noida...
Top Services:
Web Design
eCommerce Development
Web Development
Mobile App Development
Software Development
Show more
Location
Noida, India
Number of Employees
500 - 999
Average Hourly Rate
$40/hr
Minimal Budget
$50,000 & Up
InnovationM Technology Solutions Services
Web Design
eCommerce Development
Web Development
Mobile App Development
Software Development
AI Development
Software Testing
Staff Augmentation
IT Services
CRM Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
A great place to work and learn,The company provides excellent exposure to real-world projects, a supportive team, and a collaborative work environment. I’ve gained valuable practical experience while improving both my business and technical skills. Working on Digital Engineering and Custom Software Development projects has been a great learning experience. Overall, it has been a very positive and rewarding journey, and I would definitely recommend it to anyone looking for growth in a Software Development Company.
SUNIL SARKAR
Review from Google
5.0★
SUNIL SARKAR's Review Sourced from Google
We approached InnovationM, a leading app development company in India, with a clear requirement: we needed a mobile app for our travel company for booking hotels and flights that was not only functional but also user-friendly and scalable for future growth. From the very first discussion, their team demonstrated a strong understanding of our requirements. They took the time to analyze our goals, suggested practical improvements, and provided a structured roadmap for development. Communication throughout the project was consistent, and they kept us informed at every stage.
Overall, the experience was highly professional and satisfying. Their attention to detail and commitment to quality made a significant difference, and we would definitely recommend them to anyone looking for reliable app development services.
Pratiksha Tiwari
Review from Google
5.0★
Pratiksha Tiwari's Review Sourced from Google
We needed a custom software solution tailored specifically to our business operations, and finding the right software development partner was a crucial decision. We were initially unsure whether a Noida-based company could fully understand our unique requirements and deliver a scalable solution. From the beginning, the InnovationM team demonstrated a deep understanding of our business challenges. They took the time to analyze our workflows and proposed a solution that was both practical and future-ready. Their structured approach gave us confidence in their capabilities.
The final software solution was reliable, efficient, and perfectly aligned with our needs. It helped streamline our operations and improve overall productivity. We are extremely satisfied with the outcome and would highly recommend their services as a trusted IT services and software development company in India.
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
.png)
Proposals