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.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Debut Infotech
VerifiedVerified by the DesignRush team for authenticity and credibility.AI-Powered Innovation, Delivered
Debut Infotech is a leader in advanced technological solutions, specializing in AI, Blockchain, Smart Contracts, IoT, and mobile and web development...
Top Services:
- AI Development
- Web Development
- Blockchain
- Mobile App Development
- Software Development
- Show more
- Location
- Springfield, Illinois
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 17 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDebut Infotech Services
Data sourced from the agency's DesignRush profileNordic Strong WellPoP Aithentic NDAX PRC Coin P2B Best Western Unique School Integra Ledger Friendspire
Debut Infotech Reviews & Testimonials
James Carter's Review Sourced from Google
Our company aimed to launch a trading platform but struggled with security planning and system performance. Debut Infotech supported us with crypto exchange development services using Node.js, blockchain integration, and secure wallet APIs. Their solution helped us deploy a stable exchange environment with improved transaction handling.
Andrew Ethan R.'s Review Sourced from Google
Debut Infotech efficiently addressed the performance and scalability challenges in our mobile app. They quickly diagnosed the issues and delivered a stable solution using up-to-date development tools. The project was completed on time with clear communication throughout.
Blunt David's Review Sourced from Google
I had the pleasure of working with Debut Infotech for DeFi development, and I am extremely satisfied with their expertise and service. Their team utilized a comprehensive suite of tools, including smart contract generators, DeFi protocol integrators, and liquidity pool management tools, all of which streamlined the development process. They not only helped us build secure and scalable decentralized finance solutions, but also provided automated yield farming and staking platforms that significantly boosted user engagement. Their focus on security, with built-in auditing tools, gave me confidence throughout the project. I highly recommend Debut Infotech to anyone looking for reliable, efficient, and innovative DeFi development.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
TouchZen
VerifiedVerified by the DesignRush team for authenticity and credibility.Premiere Mobile Applications
75+ Mobile Apps Shipped. 12+ Apps Featured by Apple & Google. 20M+ Downloads...
Top Services:
- Mobile App Development
- Product Design
- UI/UX Design
- Design Services
- Web Design
- Show more
- Location
- Irvine, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 11 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTouchZen Services
Data sourced from the agency's DesignRush profileUCLA Beachbody FullyRaw by Kristina Children's Hospital Los Angeles Harman/Kardon Amalfi Jets JetBay SHRED Get Cover Cancer Buddy
TouchZen Reviews & Testimonials

Mobile App Development Review from Shaya Ghanouni
The Touchzen team was amazing!! They were always responsive and ready to incorporate our feedback. The quality of their work was great and the tips they gave us during development were extremely helpful. We would gladly work with them again.

Mobile App Development Review from Domenic Fraboni
We couldn't be more pleased with our experience with TouchZen. They took over a bad situation left behind by our previous development team and have been able to continue to build new features while cleaning up the old project. We have been very pleased with their developers responsiveness as well as the project management. I would highly recommend working with them for any of your web or mobile app development needs.

B2C Apps Review from Brett Lassig
We have been extremely impressed with TouchZen's development team behind the Get Cover Mobile App. Their approach has been collaborative, and responsive to the needs of our warranty and claims environment.The app is intuitive for end users while still delivering the robust functionality needed on the backend, especially around claims processing, and real-time updates.Their diligence has made a significant impact. Features like streamlined claim submission, status tracking, have enhanced both customer satisfaction and operational efficiency.Overall, this highly capable and professional development team has delivered quality work and stands behind it. We look forward to continuing to build and scale with them.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsYou Dream IT - We Dev IT
𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 is one of the main areas of DevIT work. Our team has extensive knowledge of various technologies. This allows us to create fast, flexible, responsive, attractive, and user-friendly stores and Shopify apps...
Top Services:
- eCommerce Development
- Web Development
- Software Development
- IT Services
- Web Design
- Show more
- Location
- Toronto, Canada
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 29 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDevIT Services
Data sourced from the agency's DesignRush profileAfterSell by Rokt | Shopify App Karstgoods | Website & WebApp Heliguy | Website & WebApp UpsellPlus Checkout Upsells | Shopify App UpCart - Slide Cart Drawer | Shopify App OutSell Cross Sell & Upsell | Shopify App Antla | Shopify App ConvertMax PostPurchase Upsell | Shopify App Stored microsites on demand | Shopify App Push Down & Hide Out Of Stock | Shopify App
DevIT Reviews & Testimonials

Web Development Review from Ross Burylo
We worked with DevIT on a web application for one of our clients. We already had the product concept and design direction in place, and DevIT joined as our development partner. Their team handled the frontend and backend development, API integrations, and turned our designs into a working product. The collaboration was straightforward, and they helped us move the project from design to production without expanding our internal development team.

Applications Review from Denis Khorolsky
We worked with DevIT on a Shopify app for one of our ecommerce clients. The app handled product personalization, pricing rules, and personalized order data, while our team worked on the main Shopify platform and customer experience. The teams worked well together, and the client was able to launch the new feature without changing the existing store.

Small Businesses Website Development Review from Oleksandr Romanov
We worked together with DevIT Group on a financial operations platform for a shared client. Our team focused more on the core product and Python backend, while DevIT handled the infrastructure side using Node.js services built with NestJS and Fastify.They worked on integrations, payment flows, internal APIs, notifications, and async processing between different services. A lot of the project depended on things working reliably in the background, and their part stayed stable even as new integrations were added later.The collaboration felt pretty easy overall. Most discussions were direct and technical, without too much unnecessary process around them.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTrusted Technology Partner
Mobitouch is a software development company from Poland specializing in mobile app development, web development, Flutter, .NET, React, UX/UI design, AI solutions, VR/AR, MVP development, product design, and staff augmentation for startups, scaleups, and enterprise clients...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Web Design
- UI/UX Design
- Show more
- Location
- Rzeszów, Poland
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 24 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsmobitouch Services
Data sourced from the agency's DesignRush profileItaka Jeronimo Martins PEKAES
mobitouch Reviews & Testimonials
Sheridez App's Review Sourced from Google
I do not recommend using Mobitouch for anyone looking to develop an app, especially startups that need an MVP or first version. I worked with them for over a year, spending more than 200,000 PLN (53.000 USD) on my MVP and initial app version.The whole process was extremely stressful and unprofessional. The project manager assigned to me did not deliver on time, scope, nor budget, failed to communicate, and put my budget at risk with the MVP. The app had to be corrected repeatedly, and even after a year, the same notification issues kept coming back among other errors.They lack both the competence and the right attitude. During the collaboration, I was repeatedly told that they handle big clients and big projects, so it was indicated to me that my small projects was not really worth the attention. Even after a manager replaced the PM, nothing changed – the same technical problems and the same dismissive attitude: my project was too small to care about really.Now that I’m working with a different team and saving the project, I’ve learned that the entire notification problem was caused by the developer’s lack of competence (no surprise), which added extra costs to fix. The same lack of developer competencies resulted in interference with the release process, resulting in technical blocking of new releases for Androids, which caused further expenses. Of course Mobitouch could fix those if I paid them more. So no professionalism and no moral compass here, therefore the honest public feedback.My advice to anyone:Never let them use their test environment – set up your own. If you later try to move your project to a different team, they will want extra money to “help” you leave, eating into your budget.Check estimates for graphic design tasks carefully – suddenly all tasks are listed as 8 hours.I do not recommend them. It’s not worth the stress, tears, or money. Find a different company to develop your MVP and work on your dreams.
Rav Niemiec's Review Sourced from Google
I've completed two projects with iT. Five stars for professionalism and on-time delivery, plus a bonus for their excellent after-sales service and maintenance. I highly recommend them.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
X2 Mobile
Award WinnerRecipient of a Best Design Award for outstanding work.Bridge the Gap Between Ideas & Digital Experiences
Actively identify tech & product opportunities to transform your ideas into engaging and accessible digital experiences.Our clients from Africa, US or EU enjoy great returns such as 2M monthly users or 10k downloads in the first 10 days of launching their app...
Top Services:
- Mobile App Development
- Web Development
- Software Development
- Product Design
- UI/UX Design
- Show more
- Location
- Cluj-Napoca, Romania
- Number of Employees
- Under 49
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 17 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsX2 Mobile Services
Data sourced from the agency's DesignRush profileRed Sea International Film Festival ClassLink Ubongo Learning Kinnect KiteSpot Collaborative Classroom Verity VCash Aslan Interactive, Inc. Safelet BV
Your Automation And AI Adoption Partner
Most businesses know something is slow or broken. They don't know exactly what to fix, or where AI actually fits. We start there: map your processes, find the highest-ROI automations, then build, run, and help your team adopt them as your ongoing AI automation partner. Certified n8n Expert Partner, Clutch...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- CRM Consulting
- IT Services
- Show more
- Location
- Tuckahoe, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts2V Automation Services
Data sourced from the agency's DesignRush profileGeorgia University AI Design Signature Champion Rings Fit For Golf Fireplan Zippo Aps Shila.so Contrail Financial Bright Defense Select Surplus
Custom Software Development Company For Startups And SMBs
Peppernode provides custom software development services for SMBs and startups. Our offerings include MVP development, product development, software testing and automation, and team augmentation. We can either work as your project team or supply vetted specialists to fill resource gaps. With us, you get...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- Staff Augmentation
- Show more
- Location
- Tallinn, Estonia
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPeppernode Services
Data sourced from the agency's DesignRush profileLailaty Passion.io FeedLocal Bookme Chowtime! EVOgrc BuildX
A Product Studio for Positive Impact at Scale
Tapptitude is a Product Studio that partners with funded startups and established brands to build interactive, mobile-first products that people love to use. We work with our clients as Product Partners, supporting them proactively throughout the journey from idea to launching a product and scaling it up...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- Software Testing
- Web Design
- Show more
- Location
- Cluj-Napoca, Romania
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTapptitude Services
Data sourced from the agency's DesignRush profileGlorify Imobiliare.ro Bond Hifumi Minderful Slite OnTapp Tap2Map NeonMango Reverse Health
Tapptitude Reviews & Testimonials
Cristina Ladar's Review Sourced from Google
Happy they removed the health insurance and replaced it with health services reimbursement. Thanks to that I actually have full autonomy to request for the services I need. The initial insurance wasn’t covering for the need I had.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTrusted Technology Partner Since 2012
unicrew is a full-scale software development, consulting and design company, which provides a full spectrum of services - from design and software development to the unfailing commitment to quality assurance...
Top Services:
- Software Development
- Product Design
- Web Design
- Web Development
- eCommerce Development
- Show more
- Location
- Lviv, Ukraine
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsunicrew Services
Data sourced from the agency's DesignRush profileJack Cooper RWTH Aachen University LiquiMoly
We Turn Your Ideas Into Reality.
Software development and IT consulting company built by technology enthusiasts. We focus on delivering an excellence of work for our customers...
Top Services:
- Web Development
- WordPress Website Design
- Software Testing
- Mobile App Development
- Software Development
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $17/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDreams Technologies Services
Data sourced from the agency's DesignRush profileYosi Health Brickendon Consulting HybridHero Ava Touch Asia Expeditions - DMC Innovations Trove Ltd Torripo Inc Planet Lawyer Inc.
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Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
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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.
Core services include:
- Functional testing
- Performance testing
- Security testing
- Usability testing
- Regression testing
- Automation testing
- Accessibility testing
- Mobile app testing
- API testing
- Compatibility testing across devices/browsers
- Compliance testing
- Testing with artificial intelligence (AI) tools
- QA audit
How much do software testing services cost?
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






