Our directory is designed to help you find the right software testing company in the USA, based on five ranking criteria, expert review, and 1,300 verified client reviews.
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.
TechnoYuga is a leading AI-Native product engineering company established with the vision of helping startups, SMEs, and enterprises build powerful, scalable, and future-ready technology solutions that drive real business growth...
Top Services:
- Mobile App Development
- Software Development
- IoT
- Blockchain
- AI Development
- Show more
- Location
- New York City, New York
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 23 Projects Listed
Discover excellence with Simpalm's digital solutions. We are more than an app development company; we are your partner in crafting exceptional mobile and web experiences...
Top Services:
- Mobile App Development
- Web Development
- Web Design
- UI/UX Design
- eCommerce Development
- Show more
- Location
- Rockville, Maryland
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 22 Projects Listed
You are launched is a product development company helping startups, founders, and growing businesses turn ideas into market-ready digital products. We specialize in startup MVP development, native mobile apps, web platforms, AI-powered products, and custom software development...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- AI Development
- Web Design
- Show more
- Location
- Columbia, South Carolina
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 13 Projects Listed
a1qa is a global quality engineering company helping businesses release software with confidence. From software testing and automation to AI-powered quality engineering, we deliver measurable quality outcomes at scale...
Top Services:
- Software Testing
- Managed Services
- IT Services
- Staff Augmentation
- Show more
- Location
- Decatur, Georgia
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 16 Projects Listed
Techstack is a strategic technology partner with 10+ years of expertise in mobile and custom software development. We build, scale, and evolve high-quality digital products through strong engineering culture, transparency, and long-term growth focus...
Top Services:
- Mobile App Development
- Web Development
- Software Development
- Web Design
- AI Development
- Show more
- Location
- Dover, Delaware
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 24 Projects Listed
As a web development company specializing in building high-load complex products, we are passionate about sharing our expertise and keeping you updated on the latest advancements in these key areas...
Top Services:
- Mobile App Development
- Software Development
- Software Testing
- Wearables
- CRM Consulting
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
M TECHUB LLC
VerifiedVerified by the DesignRush team for authenticity and credibility.M TECHUB LLC Leading Mobile App Development & Staff Augmentation Company in the USA...
Top Services:
- Mobile App Development
- Software Development
- Staff Augmentation
- AI Development
- Web Development
- Show more
- Location
- Mountain View, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 25 Projects Listed
Right Tail provides a high-performance Product Software Development and IT Staff Augmentation team built for speed, precision, and outcomes. We partner with startups, scale-ups, and enterprise technology companies to design, build, and scale world-class digital products...
Top Services:
- Staff Augmentation
- Software Development
- Mobile App Development
- AI Development
- Blockchain
- Show more
- Location
- San Francisco, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 14 Projects Listed
Light IT provides the following services on the global tech market:- consulting clients on IT products and services- custom product and software development- provision of resources at the clients' request- software delivery and maintenance- software quality assurance...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- Software Testing
- IT Services
- Show more
- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 14 Projects Listed
At RichestSoft, we don't just build apps; we create seamless digital experiences that automate businesses. As a leading Mobile App and Web Development Company, we partner with visionary companies to bring their ideas to life, blending their vision with our cutting-edge technical expertise to spark future...
Top Services:
- Mobile App Development
- Web Development
- Software Development
- Software Testing
- AI Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
At Upcore Technologies, we take pride in our ability to stay ahead of the curve in the ever-evolving digital realm. Our team of experts is constantly exploring and mastering emerging technologies, enabling us to deliver cutting-edge solutions that redefine the boundaries of what's possible...
Top Services:
- UI/UX Design
- eCommerce Development
- Web Development
- WordPress Website Design
- Mobile App Development
- Show more
- Location
- Wilmington, Delaware
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
A full-service software development agency for startups. We build Software Products, Mobile Apps, IoT, and AI and ML products...
Top Services:
- Software Development
- AI Development
- Software Testing
- Mobile App Development
- Staff Augmentation
- Show more
- Location
- Irving, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
SoftTeco is an AI-native software engineering company helping businesses solve complex technology challenges. We combine deep engineering expertise, flexible delivery, and strong development processes to accelerate delivery, improve quality, and optimize costs...
Top Services:
- Mobile App Development
- IoT
- Software Development
- Web Development
- Software Testing
- Show more
- Location
- Wenham, Massachusetts
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 12 Projects Listed
X2 Mobile
Award WinnerRecipient of a Best Design Award for outstanding work.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
- Wilmington, Delaware
- Number of Employees
- Under 49
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 17 Projects Listed
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
- Norwood, Massachusetts
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 Projects Listed
Kultprosvet is a Dnipro, Ukraine based software development firm founded in 2011. It builds dedicated web and mobile development teams, focusing on full-cycle solutions UI/UX, front-end, back-end, project management, and QA. With expertise in Node.js, PHP/Laravel, React, Vue, and native mobile (iOS/Android...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- Staff Augmentation
- UI/UX Design
- Show more
- Location
- Bowling Green, Ohio
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Founded in 2013, Mind Studios is a custom software development company working with growth-stage and mid-market businesses across the US, UK, Europe, and MENA...
Top Services:
- Mobile App Development
- Software Development
- Software Testing
- Web Development
- Business Consulting
- Show more
- Location
- Fairfax, Virginia
- Number of Employees
- 100 - 249
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Rocket Systems builds custom software and AI-powered products around real business needs. We take time to understand each clients goals and choose the right technical approach, creating reliable and scalable solutions with a strong focus on quality and long-term value...
Top Services:
- Web Development
- Web Design
- IoT
- AI Development
- Mobile App Development
- Show more
- Location
- Sacramento, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Bluelight is a U.S.-headquartered nearshore software development consultancy. Bluelight provides top-tier IT talent from Latin America (and onshore) who are fluent in English, work U.S. business hours, and serve as a cost-effective alternative to U.S.-based hires...
Top Services:
- Software Development
- Software Testing
- AI Development
- Mobile App Development
- Staff Augmentation
- Show more
- Location
- Sacramento, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
VLink is a leading software development service provider specializing in top-tier digital solutions. Focusing on innovation and excellence, we deliver tailored solutions to meet clients unique needs, ensuring agility, security, and growth in the digital era...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- Software Testing
- Web Development
- Show more
- Location
- South Windsor, Connecticut
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Omax Tech is a custom software and SaaS delivery partner helping startups and mid-market teams ship products, AI MVPs, and cloud platforms. We combine product engineering, staff augmentation, and AWS DevOps across Allen, TX, Dubai, and Karachi — with senior ownership so quality doesn’t cliff when capacity...
Top Services:
- Web Design
- UI/UX Design
- Web Development
- Software Testing
- AI Development
- Show more
- Location
- Allen, Texas
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
Band Of Coders is a full service development shop with offices in Atlanta, Los Angeles, Milwaukee, and Nashville. We pride ourselves in providing our customers with the benefits of working with a global firm combined with the flexibility and personal touch of a locally run company...
Top Services:
- Web Development
- Web Design
- IoT
- Software Development
- Mobile App Development
- Show more
- Location
- Dunwoody, Georgia
- Number of Employees
- 50 - 99
- Minimal Budget
- $10,000 - $25,000
Cymbol Design, Inc. is a web & mobile design agency based in Indianapolis, Indiana. We design websites, prototypes, and complete digital products. Our mission is to partner with startups and development firms to create cutting-edge apps and technology that creates growth for your business...
Top Services:
- Product Design
- Digital Services
- Branding
- Web Development
- UI/UX Design
- Show more
- Location
- Indianapolis, Indiana
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $10,000 - $25,000
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
- Naperville, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
TatvaSoft is a trusted technology partner enabling global businesses with its strategic IT solutions. Our services majorly encompasses Custom software development, Web development, product development, Ecommerce , Mobile apps, QA and many similar cutting-edge technologies...
Top Services:
- Software Development
- Web Development
- Mobile App Development
- Software Testing
- AI Development
- Show more
- Location
- Dallas, Texas
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
We design highly polished iPhone, Android and Web Apps for startups and Enterprise clients...
Top Services:
- Mobile App Development
- Web Development
- UI/UX Design
- IoT
- Digital Marketing
- Show more
- Location
- Sunnyvale, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $15/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Born in 2013, Destm has honed its craft, becoming a trusted software consulting partner for businesses across industries. We don't just build, we transform, with a special focus on propelling e-commerce giants to new heights. We speak your language: React, Next.js, Python, Java & more. Your vision is our...
Top Services:
- Creative Services
- Web Design
- eCommerce Development
- Web Development
- WordPress Website Design
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
Software Testing Companies by City
Software Testing Companies by State
Popular Services
Hiring Guide: How to Choose the Best Software Testing Company in the US
What do the best software testing companies in the US do for businesses?
They help businesses reduce release risks, enhance user experience, and strengthen security posture by ensuring that the finished solution meets industry and business-specific standards.
In fact, research found that fixing bugs before product release results in 6.5x less cost than resolving the issue after launch.
Moreover, automating load and performance tests can accelerate the regression testing timeline by up to 90%.
Gartner’s study also found that the top reasons that organizations use automated testing are to improve product quality (60%), accelerate deployment speed (58%), and enhance department agility (41%).
How to choose the best company for your business?
To choose the best US software testing company for your business, evaluate its expertise and experience against your requirements. Here are some steps to guide you:
- Define testing requirements
Outline current software issues, testing goals and priorities, project scope, compliance requirements, budget, and timeline. - Search for relevant experience
Evaluate case studies and client references to find a company familiar with your industry-specific requirements, tech stack, and testing coverage and methodology. - Conduct due diligence
Assess the company’s certifications, vendor partnerships, awards and recognitions, and client reviews to confirm it’s trustworthy and credible. - Issue a request for proposal (RFP)
Provide a detailed project brief illustrating your business's current predicaments, so that the company can provide an accurate quote that aligns with your needs. - Schedule a consultation
Meet the team who’ll work on your project and request sample reports or pilot tests to further gauge project fit. - Make your decisions
Beyond technical proficiency, select an agency that aligns with your values and is capable of supporting your growing needs with flexible team sizes and service levels.
Need help finding a US software testing company? Visit our Marketplace and submit your project brief. We’ll connect you with the most suitable companies — free of charge.
What questions should you ask a US software testing firm before hiring?
Before hiring a US software testing firm, consider asking these questions:
Relevant Background
- How familiar are you with our industry-specific requirements? What deliverables can you provide to help us comply with the regulations?
- Can you share projects similar to our testing coverage, methodology, and criteria?
- What testing tools and frameworks do you use?
Services and Processes
- What is your software testing process — from discovery and planning to execution and reporting?
- How will you set up/manage test environments and test data?
- How do you balance manual vs automated testing? What are your criteria for automating tests?
- How do you handle access control, credentials, and confidentiality?
Relevant to Your Project
- What test types do you recommend for us, and why?
- What are your SLAs for triage, retesting, and regression after fixes?
- How do you measure quality and progress (coverage, defect trends, escape rate, release readiness)?
What are common mistakes to avoid when hiring a software testing agency?
Selecting the right testing partner requires careful evaluation beyond surface-level factors.
Common mistakes include:
- Choosing based solely on cost: The cheapest option often leads to lower quality, missed defects, and costly rework. Organizations should evaluate "results per dollar" rather than "hours per dollar."
- Failing to define requirements clearly: Vague project scopes lead to miscommunication, scope creep, and budget overruns. Clear documentation of testing objectives, success criteria, and testing entrance and exit criteria is essential.
- Underestimating testing needs: Setting up additional testing environments and infrastructures beyond the agreed scope leads to longer project timelines and higher fees. One way to avoid this is to ask the company to conduct audits, so you can more clearly define the testing needs and strategies.
- Neglecting long-term maintenance planning: Testing isn’t a one-time launch task. Without ongoing QA as the product changes, defects and security gaps reach users and become far more expensive to fix after release.
- Ignoring communication and cultural fit: Testing teams need to integrate with development workflows. Time zone differences and communication barriers can impact collaboration quality.
When asked about the most significant challenges to automated software testing deployment, struggles with implementation (36%), automation skill gaps (34%), and high upfront costs (34%) were among the most commonly reported.
How to evaluate the effectiveness of a US software testing firm?
Per the State of Testing Report, these are the most common metrics businesses are using to measure a software testing team’s effectiveness:
- Test coverage (56%): Compares how much of the software has been tested to determine the thoroughness of the testing process.
- Defect metrics (54%): Measures the number of identified defects, organizes them according to severity, and the rate at which they’re identified.
- Test execution metrics (45%): Monitors the speed, progress, and outcomes of running tests through test execution rate, test pass/fail/block percentage, and cycle time.
- Escaping defects rate (34%): Tracks the percentage of defects or issues identified after a software has been released.
- Test effectiveness metrics (25%): Identifies testing process performance in identifying defects and ensuring product quality before launch.
- Test economics (8%): Determines if the business maximizes the return on investment (ROI) of software testing.
Sources
DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
- Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
- The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
4.8
4.8Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
FAQs for Software Testing Companies
What services does a software testing company provide for your business in the United States?
They provide a comprehensive range of services designed to validate and improve software quality through systematic evaluation and advanced tooling.
Core testing services include:
- Quality assurance and testing strategy: Audits software and defines testing scope, priorities, coverage, approach, and reporting.
- Functional testing: Verifies that software features work according to specified business and functional requirements.
- Regression testing: Detects unintended issues introduced by system changes and releases.
- Performance and load testing: Measures the application’s reliability and responsiveness during peak usage.
- Security testing: Identifies and resolves security vulnerabilities and tests against compliance and governance requirements.
- Usability testing: Assesses user experience, interface intuitiveness, and overall accessibility of the solution.
- Integration and API testing: Validates how different system components and third-party services work together.
In addition to these services, software testing companies implement a mix of manual (often for exploratory and user experience-focused scenarios) and automated (repeatable checks throughout the development cycle for speed and consistency) testing models.
How much does software testing cost?
Software testing costs about 15%-25% of the development costs or 23% of the IT budget. In terms of hourly rates, US software testing companies charge an average of $100-$250 per hour, with more complex systems or specialized tests going beyond $300/hour.
The final rate will depend on solution complexity, testing coverage, quality requirements, project timeline, and current technical debt.
Here’s how much software testing costs as a percentage of the software development budget:
- Critical systems and highly regulated industries: 40%-50%
- Enterprise applications: 25%-35%
- Consumer-facing applications: 15%-25%
- Mobile applications: 20%-30%
In practice, basic one-time testing projects, such as a website penetration test, cost approximately $5,000-$10,000.
On the other hand, continuously evolving software solutions that require regular comprehensive testing can fetch between $20,000 and $70,000+ per month.
Are there any additional costs to consider when working with US software testing agencies?
Beyond project scope, complexity, and timeline, these are additional costs to consider when working with software testing agencies in the USA:
- Tooling and platform fees: Software license or subscription fees for device farms, performance testing platforms, and security scanning tools may be billed separately from the company’s overall rates.
- Device/browser lab coverage: For tests that require broad compatibility coverage, costs can increase based on access to real devices, operating system versions, and browsers.
- Scope growth: New testing requirements, additional integrations, new platforms (mobile/web), or expanding acceptance criteria often require a change order.
- Additional test cycles: Extra rounds of re-testing and regression tests beyond what’s defined in the service level agreement (SLA) incur additional costs.
- Defect remediation effort: Fixing defects is often outside the testing scope and is billed as an additional engineering or development fee.
- Compliance and security deliverables: If you require additional formal evidence (e.g., audit artefacts and traceability) or expanded security testing, expect incremental charges.
How long does software testing usually take?
On average, software testing takes around 20%-40% of the total software development time. However, the final timeline will depend on infrastructure complexity, test scope and methodology, and quality requirements.
Here’s an approximate software testing timeframe based on the typical software project schedules:
| Full Release Schedule | Software Testing Timeframe | |
Small software builds | 12-24 weeks | 2-4 weeks |
| Mid-sized builds (e.g., Fully customized mobile apps) | 16-40 weeks | 3-4 months |
| Large builds (e.g., Multi-module platforms) | 36-144 weeks | 6-12 months |
Notably, software testing is often integrated into the software development lifecycle (SDLC). As such, it’s common to see QA and testing done in 1-2-week sprints rather than a separate stage altogether.
What industries do US software testing firms typically work with?
US software testing providers work with a wide range of industries, as all digital solutions need to be tested in some capacity. However, these are the sectors that quality assurance (QA) and testing experts work in based on the State of Testing Report 2025:
- Tech: 35.2%
- Finance and insurance: 16.9%
- Others: 12.7%
- Healthcare: 10.9%
- Business and information: 4.5%
- Retail: 4.1%
- Marketing: 3.7%
- Transportation: 3%
- Government: 3%
- Gaming: 2.6%
- Education: 1.9%