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.

Designli
VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.+1Award WinnerRecipient of a Best Design Award for outstanding work.Build software people actually pay for.
At Designli, we turn software into real, revenue-generating businesses and we measure our success by yours. Real users on a working MVP in 30 days, guaranteed. Senior teams paid on outcomes, not promises. First 14 days fully refundable...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Web Development
- Web Design
- Show more
- Location
- Greenville, South Carolina
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $85/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 accountsDesignli Services
Data sourced from the agency's DesignRush profileGoodwill Earthlink Rotary State of South Carolina Secur.Space Grappos Michelin Accel Entertainment Millennium Parking Garages
Designli Reviews & Testimonials
Mobile App Development Review from Anonymous
Designli delivered a high-quality prototype on a tight timeline. The team was responsive to feedback, met every deadline, stayed within budget, and quickly adapted to requested changes. Their expertise in app design and development was evident throughout the project and left a strong impression.
AI UI/UX Design Review from Anonymous
Designli produced a complete, functional Figma prototype for our solution. They communicated clearly through virtual meetings and stood out for their strong process, gathering feedback from multiple stakeholders and delivering on schedule. Overall, we were very impressed with their work.
AI UI/UX Design Review from Anonymous
Designli delivered Figma wireframes that were both well-crafted and well-received by our team. The designs were clean, intuitive, and elegant, reflecting strong design intuition. Throughout the process, the team stayed organized, communicated clearly via Basecamp, and delivered everything on time.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Dreamers Inc.
VerifiedVerified by the DesignRush team for authenticity and credibility.Your spark, our fuel
Dreamers is a research, data science, and tech consultancy that specializes in building solutions for complex problems. We are based in sunny California, but we work remotely with clients from all over the world. We're engineer-owned and operated, meaning you'll get personal attention and quick answers...
Top Services:
- AI Development
- Blockchain
- Software Development
- Mobile App Development
- Wearables
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDreamers Inc. Services
Data sourced from the agency's DesignRush profileUniversity of California Los Angeles John Hopkins University Applied Physics Laboratory University of California Santa Barbara University of Michigan SpendLogic Arizona Court of Appeal (Div 2) HyperCite Boeing Aerospace British Aerospace Engineering Adamant Aerospace
Dreamers Inc. Reviews & Testimonials

Software Development Review from Dennis Temko
Dreamers was the only firm capable of building my ambitious vision for HyperCite. They transformed an unprecedented concept into a patented, production-grade legal technology platform designed for fact-checking. This included help in product strategy, and leading UX, algorithm development, AI, database and cloud architecture, frontend and backend engineering, scalability, observability, CI/CD, deployment, and ongoing maintenance. They delivered two California product versions and a dedicated Arizona implementation integrated directly with the appellate court, where HyperCite has operated for more than five years. Today, HyperCite not only automates hyperlinks between legal briefs and cited records; its AI fact-checking system compares claims against supporting evidence, flags contradictions and unsupported assertions, and takes judges and attorneys directly to the underlying source. The result is faster, clearer, and more reliable judicial review, delivered through close collaboration with HyperCite’s leadership and the Arizona court CIO.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsBuilding tomorrow with technology!
SaM Solutions is a software engineering company offering a range of services, including software development, IT consulting, and quality assurance...
Top Services:
- Software Development
- Software Testing
- IoT
- AI Development
- Staff Augmentation
- Show more
- Location
- Gilching, Germany
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $50/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 accountsSaM Solutions Services
Data sourced from the agency's DesignRush profileFujitsu Kaspersky CBC National Bank European Patent Office Direct Valuation Services azh SAP Siemens PHYTEC Definition 6
SaM Solutions Reviews & Testimonials
Anastasia's Review Sourced from Google
I've been working at SaM Solutions as a Content Manager for some time now and am happy to be part of the international team. The working atmosphere is professional and supportive.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTransform Your Ideas Into Profitable IT Solutions
ITWEBS provides full-cycle software development, web and mobile application development, eCommerce platforms, DevOps, integrations, IT support, and dedicated development teams for businesses that need reliable digital solutions...
Top Services:
- eCommerce Development
- Web Development
- Software Testing
- Staff Augmentation
- Mobile App Development
- Show more
- Location
- Warsaw, Poland
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsITWEBS Services
Data sourced from the agency's DesignRush profileeCommerce Industry Education Industry Retail Industry
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
Specialists in AI and Mobile
At Cloudflex, our top priority is delivering high performance, quality end-products, and customer satisfaction, rather than getting bogged down in project documentation. We specialize in developing digital products for both startups and established businesses, from concept to launch, focusing on complex...
Top Services:
- Software Development
- AI Development
- Mobile App Development
- Software Testing
- Web Design
- Show more
- Location
- Kyiv, Ukraine
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/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 accountsCloudFlex Services
Data sourced from the agency's DesignRush profileCyanoguard Bean Ewhenter Yaza
The AI Reimagination Company
Techjays is an AI development company helping businesses reimagine how work gets done with AI. Combining AI consulting and AI development services, Techjays identifies high-value business workflows, redesigns processes around AI, and builds production-ready systems that deliver measurable outcomes...
Top Services:
- Software Testing
- Software Development
- Mobile App Development
- Web Development
- UI/UX Design
- Show more
- Location
- Menlo Park, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTechjays Services
Data sourced from the agency's DesignRush profileShipdude Fayvit CloudNine Vidhire Nakkheeran Xtra Curriculum SliverBack CoSell
Techjays Reviews & Testimonials
Larry Miller's Review Sourced from Google
I've used Tech Jays for several projects, I love their work and love working with the team!
Corbin Miller's Review Sourced from Google
I've been working with Techjays since they started and have never been disappointed. On each project I have worked with them they have always delivered on time, on budget and with great quality. They adapt to the needs of the customer and have been in large part, more of a technical co-founder for my start ups. I'll continue to work with them and highly recommend them to anyone!
Jonathan Rodriguez's Review Sourced from Google
We've been working with TechJays the past 18+ months and the outsource experience has been great. They are agile and compared to previous outsource experiences, their competence, quality, and delivery punches above the rest.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Build What Your Business Needs
BlueSail AI builds custom software and automation for businesses running on spreadsheets, workarounds, and expensive tools that never fit. Web apps, internal systems, client portals, AI agents, and workflow automation - designed around how your operation actually works. Based in Jacksonville, FL, with a...
Top Services:
- Software Development
- AI Development
- Web Development
- Mobile App Development
- Web Design
- Show more
- Location
- St. Augustine, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/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 accountsBlueSail AI Services
Data sourced from the agency's DesignRush profileAmerican Capital Partners Godfather Pickleball Gambletron AI
Software as a passion.
Established in 2002 in the USA, ObjectStyle stands as a distinguished software technology company. We are dedicated to offering comprehensive end-to-end IT services that encompass a wide spectrum of solutions. Our expertise spans various domains, ranging from web design and mobile app development to IT...
Top Services:
- Product Design
- Software Testing
- Mobile App Development
- Software Development
- Staff Augmentation
- Show more
- Location
- Fairfield, Connecticut
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsObjectStyle Services
Data sourced from the agency's DesignRush profileSports Industry Education Industry Legal Industry
From Business Intent To Production-Ready Change
CloudGeometry is a Silicon Valley engineering firm that builds and runs cloud-native platforms, data pipelines, and AI systems for SaaS and enterprise teams. Its AI-MSL offering pairs an AI-driven delivery platform with a managed service: AI agents carry build and maintenance work across the software...
Top Services:
- AI Development
- Managed Services
- Software Development
- Mobile App Development
- Cloud Consulting
- Show more
- Location
- Sunnyvale, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCloudGeometry Services
Data sourced from the agency's DesignRush profileEventric FaceUp TetraScience Nanox LangBuilder Digital Remedy
CloudGeometry Reviews & Testimonials
Felix Albert's Review Sourced from Google
CloudGeometry is a team of highly experienced AI & Data consultants. They quickly helped me define a clear roadmap for transforming my real estate platform with AI. Great strategic insights and practical guidance !
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe 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.
AI Transformation and Software Development Services
We help early-stage startups build market-ready applications, and mid-market firms achieve tangible ROI with AI and Digital Transformation initiatives...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Software Testing
- IT Services
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBenmore Technologies Services
Data sourced from the agency's DesignRush profileALG Worldwide Logistics CorpNet SunTheory Noble Gas & EV
Enterprise software, nearshore from Mexico — with a U.S. entity in Texas.
Enterprise software firm founded in 2018, headquartered in Monterrey, Mexico, with a U.S. entity in Laredo, Texas. We build and integrate software for companies that operate at scale, and staff dedicated engineering teams for U.S. clients in Central Standard Time...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Software Testing
- CRM Consulting
- Show more
- Location
- Monterrey, Mexico
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsiTechDev Services
Data sourced from the agency's DesignRush profileCEMEX Soriana Mohawk CAINTRA Construrama Certior HUBBI PowerDrive Technologies
iTechDev Reviews & Testimonials
Uziel Bustamante G's Review Sourced from Google
We've worked together on several occasions, and it's always a pleasure. They are an extremely professional team, with prompt service and the ability to respond quickly to any request. Without a doubt, they are key partners for our projects.
Monica Lopez's Review Sourced from Google
We started with them for a custom development project, and they ended up also helping us migrate our email to Microsoft 365 and with security. Having a single team for everything has greatly simplified our day-to-day operations. Highly recommended.
EQUIPOL DE CV's Review Sourced from Google
Excellent service and attention! We have been working with them for a long time and they are always available in case of any emergency.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTrusted by NASA · Built for Frontiers
NASA-grade product engineering for regulated industries...
Top Services:
- Software Development
- AI Development
- Mobile App Development
- Software Testing
- IoT
- Show more
- Location
- Middletown, Delaware
- Number of Employees
- Under 49
- Average Hourly Rate
- $199/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsConcept to Cloud Services
Data sourced from the agency's DesignRush profileKythera Altech-USA JPL
Your ideas become innovative apps.
We are Hybrid Heroes. We conceive, design and develop digital products. We help our customers to master the challenges of the future with innovative solutions...
Top Services:
- Mobile App Development
- Software Development
- Design Services
- Web Design
- UI/UX Design
- Show more
- Location
- Berlin, Germany
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHybrid Heroes GmbH Services
Data sourced from the agency's DesignRush profileBomag Rundfunk Berlin-Brandenburg Springer Medizin Verlag LeasingMarkt Freie Universität Berlin Houz of Nature Pvt. Ltd. Kieback&Peter GmbH & Co. PHYWE Immocloud
Hybrid Heroes GmbH Reviews & Testimonials
Claudia Loitsch's Review Sourced from Google
I met Hybrid Heroes at App Vision, where I was able to give a presentation on digital accessibility and the Federal Federal Act on Accessibility (BFSG). This led to an exciting collaboration between Hybrid Heroes and a11y Design GmbH – with the shared goal of making apps accessible.The collaboration was not only technically high-level, but also a real pleasure.Many thanks to the entire team!
Doreen Hegemann's Review Sourced from Google
Excellent app development with a strong UX focusHybrid Heroes impressed us with their combination of strong UX focus, technical expertise, and collaborative partnerships. Communication was clear and transparent, and the solutions were well-thought-out and tailored to our individual needs. If you're looking for a reliable team for high-quality digital products, this is the right place for you.
Enrica Burdack's Review Sourced from Google
The team is professional, transparent, and always one step ahead. Particularly positive: clear communication, fast response times, and a feel for modern technologies. Absolutely recommended for anyone who wants to develop digital products at the highest level!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTrustful software development partner to make technologies serve your business.
Jappware is a trustful software development partner for businesses and individual entrepreneurs around the globe. We provide complete transparency in cooperation processes and interact as a strategic partner for all our clients.Providing team augmentation and dedicated teams, we develop software solutions...
Top Services:
- Staff Augmentation
- Software Development
- IT Services
- AI Development
- Big Data Analytics
- Show more
- Location
- Lviv, Ukraine
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $29/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsJappware Services
Data sourced from the agency's DesignRush profileUnzer Sightfull Vestlane BetterCo. Lean-Case Betts Recruiting Support Warehouse
Delivering Digital
Wishtree is a product engineering services company focused on crafting secure, scalable digital solutions for global enterprises...
Top Services:
- Web Design
- UI/UX Design
- Web Development
- AI Development
- Software Testing
- Show more
- Location
- Ahmedabad, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWishtree Technologies Services
Data sourced from the agency's DesignRush profileRexel Rutgers Vodafone Xactly IAS
Wishtree Technologies Reviews & Testimonials
Farha Mansuri's Review Sourced from Google
I had a very disappointing experience with their walk-in interview process. They posted about a walk-in drive along with a Google Form for registration. Nowhere in their LinkedIn post did they mention that candidates would require a personal invite to attend.I filled out the form and traveled over an hour in 40-degree heat while fasting, only to be told that I hadn’t received an invite and couldn’t interview. If a personal invite was mandatory, this should have been clearly communicated in the post. Additionally, if they were selecting candidates, they should have at least sent a rejection email so people wouldn’t waste their time traveling.This kind of poor organization and lack of communication is highly unprofessional. It reflects badly on the company and makes candidates feel like their time and effort are not valued. I hope they improve their process in the future to avoid misleading applicants.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTop Sitecore Solutions Provider
We embrace digital transformation through customer centric tactical results unleashing as a digital innovation agency.Sourceved is providing enterprise cms based solution which includes Sitecore , Umbraco , EpiServer , SiteFinity , Drupal and WordPress for all industries...
Top Services:
- Web Development
- Mobile App Development
- Software Development
- Software Testing
- AI Development
- Show more
- Location
- Ahmedabad, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/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 accountsSourceved Technologies Pvt Ltd. Services
Data sourced from the agency's DesignRush profileToastmasters International Thrillworks Avista VirtusaPolaris Icreon 3AG Solutions Sonata Software Vantage Travel Driven Inc FastWebMedia
Sourceved Technologies Pvt Ltd. Reviews & Testimonials
umang shah's Review Sourced from Google
Sourceved has been an incredible partner for our IT needs. Their team is not only highly skilled but also incredibly responsive and committed to delivering quality solutions.They've consistently exceeded our expectations. I have no hesitation in recommending Sourceved to anyone seeking reliable and professional IT services.
Nitin Patel's Review Sourced from Google
I've had an exceptional experience working with Sourceved. Their team is highly professional and dedicated. They provided us with top-notch solutions for our software development needs. Their expertise in Sitecore has been invaluable. The quality of their work and their commitment to meeting deadlines is truly impressive. I highly recommend Sourceved for any IT or software development projects.
rutvi Parikh's Review Sourced from Google
I have been joined here as a trainee and they started giving me training from basic level to high level. and very positive and supportive staff. I learned lots of things from here. best company for freshers to starting their IT career from here ..
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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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
Core services include:Â
- Functional testing Â
- Performance testing Â
- Security testing Â
- Usability testing Â
- Regression testing Â
- Automation testing Â
- Accessibility testing  Â
- Mobile app testing Â
- API testing Â
- Compatibility testing across devices/browsers Â
- Compliance testing Â
- Testing with artificial intelligence (AI) tools
- QA auditÂ
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. 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















