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
407 Companies-Rankings updated: September 07, 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.
Empowering Your Journey Towards Digital Excellence.
Empowering Your Journey Towards Digital Excellence.
At Codetru, we're dedicated to helping businesses of all sizes harness the power of technology to drive growth, improve efficiency, and enhance customer experiences by providing innovative software services...
Binate is a digital transformation partner specializing in AI-powered app development and intelligent solutions for businesses of all sizes. We combine innovation with technical expertise to design user-focused applications that drive growth...
Delivering digital solutions focused on user experience for 15 years now, Zyxware Technologies is your partner in the following steps needed for the digital transformation of your business. Customized solutions form the bedrock of our services, thanks to Drupal and our competent team of consultants,...
Mageplaza is a top-rated e-commerce extension & solution provider on the Magento & Shopify platforms
Mageplaza is a top-rated e-commerce extension & solution provider on the Magento & Shopify platforms
We are here to make the world of e-commerce a better place with our knowledge, innovation & dedication.At Mageplaza, we're not just another tech company. We're your dedicated partner in crafting amazing online shopping experiences...
A boutique cyber security consultancy firm that specializes in application security, cloud security, DevSecOps, threat modelling with focus on small businesses and startups. Also, provide multiple unique solutions like CyberRISK4Board and cyber risk management consulting...
Dycoders team creates solutions for tech industry from startups to businesses, and have a proven track record of providing development services to over 50 companies. Dycoders is not just a developers hub but has digital designers who can make top quality softwares including mobile apps...
Ubertesters is a crowdtesting company that allows organizations to outsource the power of the crowd for their own digital testing or QA needs by using remote global vetted testers with devices...
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...
Custom Software Development Company in Australia, USA and India
Custom Software Development Company in Australia, USA and India
Albiorix Technology is a leading custom software application development provider with years of experience. Get specialized software development services right away...
Empower Your Business with Top Custom Software Solutions
Empower Your Business with Top Custom Software Solutions
CleverDev Software, a top custom software development company, specializes in creating bespoke software solutions for healthcare, fintech, logistics, and manufacturing. We deliver tailor-made solutions focusing on building trustful business relationships and driving forward with top service quality...
Top 50 Outsourcing Software Development Company in Viet Nam.
Top 50 Outsourcing Software Development Company in Viet Nam.
Bestarion provides software development consultation services specializing in Healthcare Supply Chain, Financial services for the last 19+ years. We have been successful in outsourcing services and notably in Ruby on Rails, C on Linux and .NET...
Codoid Innovations is a leading software testing company founded in 2012 by a group of passionate test automation professionals. Our extraordinary journey started with our visionary founders foreseeing the wide-scale adoption of open-source tools for automation testing and its impact on the various software...
littlecode is a disciplined group of web devs and software architects who assist businesses to create elaborate coding blueprints, automate complex systems, and write clean, logical code...
CodeClouds is your one-stop shop for everything Web, eCommerce, CRM, CMS, and Design. We have more than 500+ members in the US, New Zealand, India, and Australia...
Logikos provides custom software services, specializing in embedded, desktop, web, and mobile software solutions, as well as software testing services...
Founded in 2006, SITEK INC has solid footing in its Information Technology offerings. We are experts in the services we offer and we work to make sure our clients benefit from our knowledge. At SITEK INC your project will be delivered on time, within budget, and to your satisfaction every time...
Captus Technologies offers professional services since 11+ years for more than 2300+ website developed. We have worked variety of industries such as Retail, Real Estate, Logistics, Healthcare and many more. We have Developed 1100+ Brands across the world. Our certified mobile app developers is committed to...
ONE BCG is a global software consulting firm with over 22 years of experience solving complex problems with technology and delivering innovative solutions. We work together with the brightest minds to deliver comprehensive and scalable solutions focusing on user experience and technical excellence...
A team of diligent software technology professionals helping companies build world-class software products. Benchmark is an IT solutions company focused on Product Engineering and CRM Services...
Transforming business through bespoke software, Jahnel Group excels at creating impactful applications, especially in sectors like finance, healthcare, and media. Our skilled developers specialize in digital product design and development, from UX/UI to web and mobile applications, backed by expertise in...
Pendoah helps North American SMBs turn AI strategy into production systems that pass audits. We deliver secure data foundations, reliable models, and MLOps with compliance and ROI proven in real deployments...
Kodehash is a leading App Development agency, based out of Gurugram, Dubai & New York. We have a global presence and years of industry-rich experience and expertise. At Kodehash, we transform your business expectations into a reality. We provide a one-stop shop for all of your app and web development, as...
Audacix helps smart software teams ship their applications with zero bugs & zero known security vulnerabilities, every sprint. This helps you cut costs, release features faster and sleep easier knowing that your application and your customers data is secure. Talk to us to see how it could work for you...
Our focus is on providing businesses with the tools they need to reach their maximum potential through the use of our cutting-edge software solutions. Launch your product to market 2x faster with Techjay's strong business domain experience, technical expertise, extensive knowledge of the latest industry...
We deploy secure AI solutions that deliver positive ROI within weeks.
We deploy secure AI solutions that deliver positive ROI within weeks.
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...
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...
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...
Dreamcraft specializes in developing top-tier, comprehensive solutions for both mobile and web platforms, elevating your business and propelling it to new heights with unparalleled quality...
Savvycom is an AI-driven software development and IT consulting company founded in 2009, helping enterprises design, build, and modernize digital systems that deliver measurable business outcomes. Recognized as one of Vietnams Top 10 Digital Technology Companies, Savvycom partners with organizations...
Supercharge - Innovating Digital Product Development
Supercharge - Innovating Digital Product Development
At Supercharge, we partner with our clients to turn disruption into opportunity by creating transformative digital solutions. With over 200 digital experts across New York, London, Amsterdam, Helsinki, Vienna, and Budapest, we develop digital strategies, design delightful interfaces, and build robust software...
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...
Award-Winning AI Consultancy & Custom Software Development Company In UK & USA
Award-Winning AI Consultancy & Custom Software Development Company In UK & USA
Geeks Ltd is an award-winning AI consultancy and custom software development company. With 18+ years of experience and 1,500+ projects delivered, we help business leaders in Transport & Logistics, Construction, Manufacturing, Energy, Education, and Government harness AI to improve efficiency...
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...
Your Trusted Partner in Software Development, Product Design and QA
Your Trusted Partner in Software Development, Product Design and QA
inVerita is a global software, AI, and data engineering company with 150+ engineers across Europe, the USA, and Latin America(Colombia). We build secure, scalable solutions for healthcare, fintech, logistics, retail, defense, and e-learning...
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...
Rocket Systems is focused on producing high-quality code, we take extra precautions to ensure that our technological approach is congruent with the ambitions of our customers. Additionally, we strive to create code bases that are both scalable and easily maintained. In order to construct a digital product...
We Build Solutions that Help You Solve Challenges and Meet Goals
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...
Away Digital Teams specializes in recruiting and managing top talent in Vietnam for businesses seeking to establish and oversee remote teams. Our comprehensive service ensures seamless team building and management, enabling companies to thrive in today's digital landscape...
Ajackus is your one-stop solution for all your engineering needs. We have a team of talented engineers across India who can be quickly hired, trained and aligned to your business needs...
Empowering Innovations with Artificial Intelligence
Empowering Innovations with Artificial Intelligence
Innovature is a global business consulting and technology services provider that specializes in delivering high-quality IT solutions. With a focus on digital and technology transformations, they offer custom software development and consulting services across various technology verticals, in addition to...
Introducing Develoware: A game-changing catalyst for businesses. Empowering visionary leaders and their teams with state-of-the-art development tools and unparalleled integration capabilities. Embrace the power of innovation, streamline operations, and achieve unprecedented growth. Elevate your business with...
Headquartered in Newark, New Jersey, PERI is a global consulting and technology services company specializing in industry-specific solutions, strategic outsourcing and integration services...
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%
ReceiveProposals
For your project
1
Specify your budget, timeline and project requirements
2
Our experts curate a list of up to 5 most qualified candidate agencies
3
We connect you with them so you can choose the most suitable partner