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.
Artezio is a well-established US-based custom development firm that offers a wide range of IT services to businesses worldwide...
Top Services:
- Mobile App Development
- Software Development
- Software Testing
- Branding
- Show more
- Location
- Princeton, New Jersey
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $26/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
NineTwoThree AI Studio is a Boston-based AI agency that builds secure, production-grade AI and ML solutions with measurable ROI. Founded in 2012, our Ph.D.-level engineers and certified product managers have delivered 150+ projects for enterprise brands and startups alike...
Top Services:
- AI Development
- Mobile App Development
- IoT
- Software Development
- DevOps Consulting
- Show more
- Location
- Danvers, Massachusetts
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
NEKLO is an international custom software development partner. Since 2008, weve specialized in building and scaling digital products for high-stakes industries, including Healthcare, Fintech, Energy, and Construction...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Product Design
- Software Testing
- Show more
- Location
- Burlingame, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
ImpactQA specializes in Robotic Process Automation (RPA) services to enhance business process automation. We leverage AI, RPA tools, and next-gen automation procedures to optimize your operations and reduce time-to-market...
Top Services:
- Software Testing
- ERP Consulting
- DevOps Consulting
- Location
- Plano, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
Scaling logistics software delivery through deep industry expertise, AI-assisted development, and scalable delivery capacity. We build and modernize custom systems for logistics, supply chain, and transportation operations, helping clients improve efficiency and successfully deliver medium and large...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Software Testing
- Show more
- Location
- Plymouth Meeting, Pennsylvania
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 1 Project Listed
Waveo is an AI product studio in Irvine, CA. We design, build, and ship production AI for operations-heavy companies without an in-house AI team: AI agents and automation, computer vision, digital twins and IoT, and predictive AI. Idea to production in weeks. Real engineering, not no-code. Clients own the...
Top Services:
- AI Development
- Software Development
- IoT
- Mobile App Development
- Big Data Analytics
- Show more
- Location
- Irvine, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
Whipsocket is a software development consultancy in Columbia, SC that builds web and mobile applications for startups and established product teams. We combine modern coded stacks React, Next.js with AI-accelerated workflows to deliver production-ready software faster than traditional agencies, without the...
Top Services:
- Software Testing
- Mobile App Development
- Software Development
- Engineering
- AI Development
- Show more
- Location
- Gaston, South Carolina
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
Bacancy stands as a top Reactjs Development Company, offering secure, scalable, and sustainable React solutions. Specializing in diverse frameworks and applications, we provide up to 40% savings on costs and a dedicated team for tailored solutions, ensuring your business is primed for growth...
Top Services:
- Mobile App Development
- Web Development
- eCommerce Development
- Web Design
- VR/AR
- Show more
- Location
- Florida, Massachusetts
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
TPLEX is a software outsourcing company. We provide companies with top tech talent and product development expertise...
Top Services:
- AI Development
- Software Development
- Staff Augmentation
- Managed Services
- Cloud Consulting
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Based in Dallas, TX, Programmers.ai is a global technology partner leading the next generation of staff augmentation. With 1000+ developers and consultants, our team excels in hundreds of technologies across 15+ industries all trained in AI tools to deliver up to 2X productivity gains vs. traditional staffing...
Top Services:
- IT Services
- DevOps Consulting
- Staff Augmentation
- Software Development
- Software Testing
- Show more
- Location
- Texas City, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $10,000 - $25,000
SpartanBots Technologies turns ambitious ideas into dependable digital products. We build SaaS platforms, marketplaces, multi-tenant applications, MVPs, and AI-powered solutions for startups and growing businesses across the US and globally. From web and mobile apps to complex integrations and workflow...
Top Services:
- Web Development
- Software Development
- WordPress Website Design
- eCommerce Development
- Web Design
- Show more
- Location
- Houston, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Nerdbug is a world-class offshore software development company that caters to businesses across various industries and growth stages, with precision and a passion for excellence. Contact us for cost-effective and timely delivery of AI & Ml software solutions, Web & Mobile app development, Custom enterprise...
Top Services:
- Software Testing
- Software Development
- Mobile App Development
- Blockchain
- AI Development
- Show more
- Location
- Atlanta, Georgia
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
SoftwareOrbits builds custom web, mobile and AI-powered software solutions that help businesses scale and accelerate digital growth...
Top Services:
- UI/UX Design
- Web Development
- Mobile App Development
- Software Development
- AI Development
- Show more
- Location
- Newark, Delaware
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Bridging the gap between business vision and technology, Check4Tech creates tailored digital solutions for business that simplify operations, improve efficiency, and drive growth...
Top Services:
- Software Development
- UI/UX Design
- Web Development
- Mobile App Development
- AI Development
- Show more
- Location
- Mastic Beach, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Beyond Key is a global IT Software Development Company offering consulting, technology, and outsourcing solutions and catering to clients in the United States, Australia, UK, Germany, MENA and South Asian countries. We have marked a global presence in USA with our offices in Lafayette and Chicago...
Top Services:
- Software Development
- AI Development
- Mobile App Development
- IoT
- eCommerce Development
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Portfolios Count
- 1 Project Listed
Pell Software is a 100% US based company focused on building long term, authentic partnerships. We focus on learning about your specific business needs in order to find the best software solution that will help you scale your business...
Top Services:
- Software Development
- Mobile App Development
- eCommerce Development
- Web Development
- WordPress Website Design
- Show more
- Location
- Denver, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $135/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Carleton is the country's leading provider of financial calculation software, loan origination compliance support, software development solutions, and document delivery software, based in South Bend, IN...
Top Services:
- Software Development
- Software Testing
- IT Services
- Location
- South Bend, Indiana
- Number of Employees
- 50 - 99
Headquartered in Newark, New Jersey, PERI is a global consulting and technology services company specializing in industry-specific solutions, strategic outsourcing and integration services...
Top Services:
- IT Services
- Software Testing
- Big Data Analytics
- Location
- Newark, New Jersey
- Number of Employees
- 500 - 999
Axon Active is a 100% Swiss-owned AI software development company with 650+ engineers in Vietnam, helping organizations build new digital products, modernize legacy systems, and continuously evolve software...
Top Services:
- Software Development
- Mobile App Development
- IT Services
- AI Development
- IT Compliance Solution
- Show more
- Location
- San Francisco, California
- Number of Employees
- 500 - 999
KnubiSoft delivers bespoke software and MVP-development services, helping businesses and startups transform ideas into scalable web and mobile products with clean architecture and full-stack support...
Top Services:
- Software Development
- Software Testing
- Mobile App Development
- AI Development
- UI/UX Design
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
Mindera Software Craft specializes in crafting robust IoT solutions through high-performance, scalable software systems. From product development and performance testing to technology consultancy, we provide end-to-end services tailored to your needs...
Top Services:
- Software Development
- Software Testing
- IoT
- DevOps Consulting
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
Zallpy stands as one of the fastest growing Software Outsourcing and Staff Augmentation nearshore companies, strategically positioned nearshore to provide cutting-edge, scalable IT squads to Startups and Fortune 500 corporations across North America and Europe...
Top Services:
- AI Development
- Software Testing
- Blockchain
- Mobile App Development
- Software Development
- Show more
- Location
- Frisco, Texas
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $10,000 - $25,000
EliteBrains helps companies hire, verify, pay, and manage remote developers and contractors worldwide, compliantly and without setting up a local entity...
Top Services:
- Customer Support
- Software Testing
- Blockchain
- Software Development
- Mobile App Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Mediusware Limited-Your Trusted B2B IT Partner for Scalable GrowthSince 2015, Mediusware has successfully delivered 850+ projects across 20+ countries, serving over 1,000 global clients with a team of 120+ skilled professionals...
Top Services:
- eCommerce Development
- Web Development
- Digital Marketing
- Software Testing
- AI Development
- Show more
- Location
- Mount Pleasant, South Carolina
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
IT teams and business leaders are often at odds. This is in large part because technologists focus on technology rather than the underlying business issue. This company was founded to bridge that gap and to allow business owners the ability to fully leverage their tech stack. We offer near shore resources...
Top Services:
- Managed Services
- IT Services
- DevOps Consulting
- Staff Augmentation
- AI Development
- Show more
- Location
- Bellingham, Washington
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $50,000 & Up
QualityWorks Consulting Group builds custom software, web and mobile applications, and AI-integrated products, backed by deep software testing and quality engineering expertise. Founded in 2010, the Black-owned, woman-led firm helps organizations create digital products, apply AI to business operations, and...
Top Services:
- Web Design
- AEO
- Software Testing
- Mobile App Development
- Software Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
STS Software is a leading software development company in US, delivering innovative, scalable, and cost-effective technology solutions to businesses worldwide. With a focus on quality, agility, and customer success, we specialize in web, mobile, and enterprise software development tailored to meet diverse...
Top Services:
- Web Development
- eCommerce Development
- Mobile App Development
- AI Development
- Software Development
- Show more
- Location
- Reston, Virginia
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Kollasoft offers IT services, to meet the standalone or collaborative application development requirement of local and global businesses...
Top Services:
- Mobile App Development
- Cloud Consulting
- IT Services
- Software Testing
- Show more
- Location
- Scottsdale, Arizona
- Number of Employees
- Under 49
Dojo IT Solutions builds powerful websites & mobile apps. We handle everything from custom web apps and SEO to native Android & iOS development...
Top Services:
- UI/UX Design
- Mobile App Development
- Software Development
- Software Testing
- Show more
- Location
- Raleigh , North Carolina
- Number of Employees
- 50 - 99
Netquall is a global IT solutions and technology services company specializing in web design and development, web applications, custom software development, graphic design, digital marketing, and professional IT training. The company emphasizes delivering quality solutions within deadlines while maintaining...
Top Services:
- Web Design
- Web Development
- Software Testing
- Mobile App Development
- Software Development
- Show more
- Location
- Wayne, New Jersey
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
Enkaytech is a technology solutions provider specializing in application modernization, system integration, and data-driven services. Their core offerings include enterprise application integration, cloud infrastructure, API development, and AI-powered solutions that help businesses enhance efficiency...
Top Services:
- Cybersecurity
- AI Development
- IT Services
- Software Testing
- Cloud Consulting
- Show more
- Location
- Lisle, Illinois
- Number of Employees
- 50 - 99
The Apps Pro is a leading mobile app development company specializing in crafting bespoke applications with smart strategies, advanced technology, and user-friendly designs. They provide custom solutions for iOS, Android, and cross-platform apps, ensuring seamless functionality and engaging user exp...
Top Services:
- VR/AR
- Mobile App Development
- Software Development
- Software Testing
- Blockchain
- Show more
- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $2000/hr
- Minimal Budget
- $1,000 - $10,000
Eastern Software Solutions accelerates digital transformation by blending AI-driven automation with deep industry expertise. Through our flagship ebizframe ERP, intelligent RPA bots, BI and custom mobile and web apps, and Oracle legacy system modernization we eliminate workflow bottlenecks and turn scattered...
Top Services:
- Web Development
- eCommerce Development
- WordPress Website Design
- Software Development
- Mobile App Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $20/hr
- Portfolios Count
- 4 Projects Listed
Virtelliegnce is a global leader in Healthcare and IT Consulting. Through our unique consulting model providing an implementation-oriented partnership with clients, we offer consulting expertise across the full range of Healthcare IT sector...
Top Services:
- Cloud Consulting
- ERP Consulting
- ECM Consulting
- Software Testing
- Mobile App Development
- Show more
- Location
- Minneapolis, Minnesota
- Number of Employees
- 100 - 249
In 2016, we founded Web Design Glory, a company specializing in website design projects. Over time, our expertise expanded to include app design and development projects, which we successfully delivered alongside our website projects. Building on this success, in 2018, we established a subsidiary venture "App...
Top Services:
- Software Development
- Mobile App Development
- VR/AR
- IoT
- Software Testing
- Show more
- Location
- Austin, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $120/hr
- Minimal Budget
- $10,000 - $25,000
SrinSoft Technologies is a global IT consulting firm focused on IBM i (AS/400) modernization and enterprise integration for mid-to-large organizations. Founded in 2005, the company helps manufacturing, logistics, retail, and finance organizations drive enterprise modernization and digital transformation...
Top Services:
- ERP Consulting
- DevOps Consulting
- IT Compliance Solution
- Cloud Consulting
- Software Testing
- Show more
- Location
- Boca Raton, Florida
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
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
GenAI Protos is your agile AI engineering partner we deliver fully functional Generative AI prototypes in just8days, complete with expert guidance, documentation, and seamless handoff. We also provide micro advisory, On demand R&D, data engineering acceleration, and custom Edge AI development, deploying real...
Top Services:
- AI Development
- Software Development
- IT Services
- Managed Services
- Software Testing
- Show more
- Location
- California, Pennsylvania
- Number of Employees
- Under 49
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $1,000 - $10,000
NextGen Invent is a leading IT and AI services company specializing in AI, generative AI, computer vision, automation, and data analytics. Serving industries like healthcare, finance, supply chain, and manufacturing, the company has created 500+ AI models, developed over 100 software products, and e...
Top Services:
- AI Development
- Software Development
- Big Data Analytics
- DevOps Consulting
- Mobile App Development
- Show more
- Location
- Syosset, New York
- Number of Employees
- 100 - 249
- Minimal Budget
- $10,000 - $25,000
Internet Soft, an IT company excels in providing state-of-the-art solutions. Our offerings include Digital Transformation, AI/ML, IoT, Banking, and Blockchain software solutions, customized to serve both B2B and B2C customers...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Blockchain
- IoT
- Show more
- Location
- San Jose, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
Solutions Wave, a leading software development firm, is committed to offering innovative, customized solutions that improve business operations. Our specialty is customizing and executing leading CRM systems, such as SugarCRM, Salesforce, Microsoft Dynamics, and Odoo, to your businesss specific needs...
Top Services:
- Web Development
- WordPress Website Design
- eCommerce Development
- Software Development
- Mobile App Development
- Show more
- Location
- Rochester Hills, Michigan
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
Drakos Inc. builds custom software for service businesses and operationally complex companies that have outgrown disconnected tools, spreadsheets, and generic platforms. We design and develop secure, scalable systems around the way each business actually operates from CRM and field service to workflow...
Top Services:
- Software Development
- Mobile App Development
- CRM Consulting
- ERP Consulting
- AI Development
- Show more
- Location
- Dover, Delaware
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
Techsila LLC, led by an experienced CEO with 18+ years in software development, stands out for its innovation, comprehensive services, global reach, and client-centricity. We offer cutting-edge solutions spanning web and mobile app development, AI, and more. Our staffing solutions provide access to top...
Top Services:
- Mobile App Development
- Software Development
- IoT
- AI Development
- Blockchain
- Show more
- Location
- Burlington, Massachusetts
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
We employ industry-standard security protocols and state-of-the-art technology to secure our systems and networks. This includes robust firewalls, data encryption, secure data centers, and stringent access controls. We regularly update our security infrastructure to stay ahead of emerging threats and...
Top Services:
- Mobile App Development
- DevOps Consulting
- eCommerce Development
- Web Design
- AI Development
- Show more
- Location
- Austin, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
Wizr AI is an enterprise AI services and AI-powered engineering company helping organizations automate business processes, accelerate software and product development, modernize legacy systems, and govern AI. Wizr delivers AI agents, agentic workflows, and enterprise AI solutions help businesses...
Top Services:
- Software Development
- AI Development
- Digital Strategy
- IT Services
- Big Data Analytics
- Show more
- Location
- Pleasanton, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
TechQuarter is a custom software development company helping businesses accelerate growth through tailored digital solutions. Since 2014, we've partnered with startups and enterprises across finance, solar, healthcare, and mobility to deliver web and mobile apps, AI/ML systems, cloud infrastructure, and QA...
Top Services:
- IT Services
- Cloud Consulting
- DevOps Consulting
- Cybersecurity
- Product Design
- Show more
- Location
- Cheyenne, Wyoming
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
The Demski Group is a full-stack mobile and web development firm that creates beautiful, engaging, state-of-the-art applications and designs to help businesses grow and succeed...
Top Services:
- Mobile App Development
- Software Development
- IoT
- AI Development
- VR/AR
- Show more
- Location
- Olean, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $1,000 - $10,000
IBC Mobile, as a leading software development company, has been transforming businesses with innovation-led services. Our mission is to not only develop software but to build dynamic digital experiences that engage, inspire, and empower users. Our software solutions are designed to redefine industry standards...
Top Services:
- Web Development
- Web Design
- eCommerce Development
- Digital Marketing
- eCommerce
- Show more
- Location
- Coatesville, Pennsylvania
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- Under $1,000
Povio is a company that is based in San Francisco and specializes in designing and developing digital products that make a positive impact. With over 1000 successful projects delivered and a team of over 200 skilled professionals, we have collaborated with multinational companies like VW, unicorns such as...
Top Services:
- Product Design
- Web Development
- UI/UX Design
- Mobile App Development
- Web Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $70/hr
- Minimal Budget
- $1,000 - $10,000
Cybersoft is uniquely skilled to offer ubiquitous software solutions that are relevant and in demand for todays rapidly changing business dynamics. We bring the best of quality and cost effective software development using latest SCRUM based agile development that works in sync with the customer expectations...
Top Services:
- Mobile App Development
- IoT
- Software Development
- Web Development
- SEO
- Show more
- Location
- Houston, Texas
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
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:
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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%