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.
Discover the Best Software Testing Companies in the US
183 Companies-Rankings updated: September 06, 2026
DesignRush evaluates software testing agencies for QA expertise, testing processes, and verified client reviews to support confident decision-making. Some placements may be paid partnerships.
We are a software development company with proven competencies in providing web and mobile solutions. We are a team of tech people specialising in the business of providing quality solutions to clients across the globe...
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...
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...
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...
Boutique studio of senior engineers building web, mobile, and AI products since 2015. We embed as a long-term extension of your team and ship code that lasts. 5.0 on Clutch, top 1% on Upwork...
One team to build, test, ship and secure it | Agentic AI, Full-stack, QA, Test Automation & DevOps
CoVentech is more than a software development agency. It is a partner in innovation and success stories. With over 15 years of experience, CoVentech excels in software development, QA automation, and DevOps practices, driven by a shared passion for reshaping the industry...
Accelerate Business Growth With Tailored Microsoft Solutions
Artic Consulting is a global technology consulting firm specializing in Microsoft-based solutions that help organizations innovate, optimize operations, and achieve sustainable growth. By combining deep technical expertise with industry insight, the company delivers data-driven, secure, and scalable solutions...
We provide unmatched full-stack mobile app development services globally to a wide range of business verticals & help them enhance their market reach, growth and ROI. With Confianz Global you can hire an IOS app developer or an android app developer to work directly with your own IT team or have us build your...
Turning Ideas Into Apps | Your Vision, Our Innovation
Profusion Systems is a leading mobile application and software development agency that turns creative concepts into innovative, user-friendly solutions. Founded in 2012, the agency specializes in custom software, cloud migration, and chatbot development, catering to mid and large-sized businesses. With a...
Etech All is a leading software development company specializing in creative web design and robust web development solutions. We help businesses build a powerful online presence through innovative, user-focused, and results-driven digital experiences. Our expert team delivers customized, high-quality...
HiveB2X is a leading expert in custom software applications & implementations, specializing in tailored solutions for B2B companies. Focused on seamless integrations, personalized storefronts, & optimized functionality, empowering businesses to elevate their online presence & streamline operations...
Vitek Technology LLC is a leading group of technology experts specializing in delivering innovative SaaS solutions, comprehensive project management, and strategic consulting services. Our expertise also extends to encompassing top-tier Web and App design, seamless integration solutions, and reliable hosting...
Dev Centre House Ireland is a leading software development company in Ireland, delivering bespoke AI, web, mobile, and blockchain solutions across tech. Our local team and 100+ engineers help Norwegian enterprises build scalable, cutting-edge digital products...
Sunil Dhawan Consulting helps founders and businesses turn ideas into clear product plans, MVP roadmaps, and practical technology decisions. It offers structured guidance to help people build more clarity, confidence, and direction...
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...
At Accendum, we are more than a company we are a proud testament to the power of the research community to drive innovations. Founded by a group of AI and cybersecurity researchers, we are driven by a shared commitment to excellence and a passion for advancing technology. Contact us to know more...
KNDCODE delivers quick and easy access to custom-tailored technology solutions, nearshore services and team augmentation that multiply organizational efficiency, and maximize usability...
We Build Solutions that Help You Solve Challenges and Meet Goals
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...
We're a software development agency that builds products that scale. Our engineering-first culture and product-minded approach have powered success stories like Calendlythe scheduling platform that revolutionized meetings for millions...
Flower Press Interactive designs and builds websites, apps, and platforms. We take early ideas and bring them into a user-validated, production-ready state. From marketing websites to internal systems, we turn complex problems into products worth building...
Ebryx LLC is a 360° cybersecurity and secure engineering company trusted by enterprises, startups, and governments to safeguard critical digital ecosystems. Since 2008, we have combined advanced threat research, 24/7 security operations, and deep product engineering expertise to deliver protection that is...
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...
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...
Nextbridge LTD offers a robust portfolio of services, including IT strategy consulting, digital transformation, cloud migration, cybersecurity, data analytics, and custom software development. By harnessing advanced technologies like AI, machine learning, and blockchain, Nextbridge equips clients to optimize...
Bitsol Technologies is a global, multifaceted provider of software development services that turns your difficult business issues into digital solutions...
EpicBliss Solutions provides a variety of IT services.
Many worldwide clients are now using "EpicBliss" benchmark solutions, We're capable to drive you to the right tech-track for your laudable idea. So, let's scrutinize your business need, mold it and establish it with the latest and most suitable technologies...
At QualiTlabsTM, we specialize in providing innovative software testing solutions that ensure the highest levels of software quality at the pace demanded by AI, Agile, and DevOps methodologies. Our commitment to excellence drives us to deliver exceptional digital experiences across various industries...
Emorphis Technologies is a software development company having offices in the USA, UK, in India, offering its services for Digital transformation in enterprise mobility solutions, cloud computing services, backend development, salesforce consulting services, healthcare software development and more...
Webmob Software Solutions is a Swiss-based technology company specializing in blockchain, AI, and Web3 development. With 9+ years of experience and ISO-certified delivery, Webmob builds real-world asset tokenization platforms, conversational AI systems, DeFi solutions, and custom software for startups and...
Nimap Infotech: Leading IT solutions provider specializing in web development, mobile app development, and software services. With a focus on innovation and client satisfaction, Nimap offers scalable and customized solutions to meet diverse business needs...
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 (e.g., Landing platforms)
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%
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