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
11 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.
Award Winning Custom Development Experts | ERP Integration | Shopify/BigCommerce
QOLOS (pronounced "koh-lohs") is a U.S.-based software development company, specializing in building custom,
high-performance digital solutions for brands that demand innovation.
From complex ERP integrations to e-commerce solutions - you are in good hands with QOLOS...
Top Services:
Web Development
eCommerce Development
WordPress Website Design
Software Development
UI/UX Design
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Location
Green Bay, Wisconsin
Number of Employees
50 - 99
Average Hourly Rate
$150/hr
Minimal Budget
$50,000 & Up
QOLOS Services
Web Development
eCommerce Development
WordPress Website Design
Software Development
UI/UX Design
SEO
Software Testing
Mobile App Development
ERP Consulting
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Thermos
Certco
Stryker
Louisville Vegan Jerky
Dallas Morning News
Dallas Police Department
Bancroft and Sons
Schneider National
Cocktail Courier
Restaurant Warehouse
Data sourced from the agency's DesignRush profile
QOLOS Reviews & Testimonials
Amanda Viviano
Vice President at Bartz Viviano
5.0★
WooCommerce Review from Amanda Viviano
We hired Qolos to build our local florist shop's website on WordPress and WooCommerce, and we couldn't be happier with the results. From the start, they took the time to understand our business and created a site that's not only beautiful but easy for our customers to browse and shop.
The WooCommerce setup was seamless, our online ordering works exactly the way we needed it to. But what really sets Qolos apart is their ongoing monthly maintenance. We never have to worry about updates, security, or technical issues because they stay on top of everything. Any time we've had a question or a small change request, they've been responsive and professional.
As a small local business, it means a lot to work with a team that genuinely cares about keeping our site running smoothly. Qolos has been a true partner, not just a vendor. Highly recommend them to any local business looking for reliable web design and maintenance!
Sanjay Singh
Manager at JCB India Ltd.
5.0★
Web Development Review from Sanjay Singh
I kept getting negative reviews about my app for technical glitches, heating issues, functionality, loading time, crashing, and more bugs. So, I reached out to QOLOS after going through 2-3 renowned review platforms. I explained my app issue to the team, and they did tremendous work with their mobile testing solutions. Also, I wanted to build a website for my app. They created a feature-rich and seamless website.
Sarah Nesheim
Co-Founder at Crafted
5.0★
Shopify Review from Sarah Nesheim
Working with QOLOS was the best decision I have made in regards to scaling my business. They are professional, so creative, they communicate every step of the way and their pricing is fair for the highest quality work. The designer of our logo and website did it well and I am so impressed and proud of the final product! the designer listened and knew exactly what I wanted which made the process so simple. Seriously could not recommend QOLOS more!
Reviews verified by DesignRush and sourced from the agency's profile
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Tepia is a software company founded in 2012 with over 30 years of experience in web and mobile app development. We are a passionate and agile team of developers, designers, and strategists who are consistently pushing the boundaries of technology...
Top Services:
Mobile App Development
eCommerce Development
Software Testing
Software Development
UI/UX Design
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Location
Costa Mesa, California
Number of Employees
Under 49
Average Hourly Rate
$100/hr
Minimal Budget
$50,000 & Up
Portfolios Count
2 Projects Listed
Tepia Services
Mobile App Development
eCommerce Development
Software Testing
Software Development
UI/UX Design
Web Design
Web Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Marugame Udon
MicroVention
Henry Schein
Meta
Irvine Company
Participant Media
Pujol's Foundation
MoodMe
RELI Solutions Inc.
SleepCenter of Nevada
Data sourced from the agency's DesignRush profile
Tepia Reviews & Testimonials
Dr. Lesley Kirkpatrick, MD
Founder at mindcomb
5.0★
Mobile App Development Review from Dr. Lesley Kirkpatrick, MD
I had a great experience working with Tepia. Abraham, the Founder and CEO, was available, helpful, and actively involved throughout every stage of the process. Kimmy, my assigned project manager, was organized, responsive, and clear in her communication from start to finish.
They anticipated potential obstacles before they became issues and approached everything with a thoughtful, solutions-oriented mindset. The team was consistently proactive, professional, and transparent. I truly appreciated their structure and ability to keep things moving smoothly. I would highly recommend working with Tepia.
Robert Beknazarian
President at RELI - Windows & Doors
5.0★
Mobile App Development Review from Robert Beknazarian
Working with Tepia Co has been an exceptional experience from start to finish. They played a critical role in developing our mobile app for RELI, and I can confidently say they exceeded our expectations on every level
From day one, Tepia demonstrated a deep understanding of both the technical and business sides of app development. They didnt just execute tasks they asked the right questions, challenged assumptions when needed, and helped us think through complex workflows in a way that improved the final product. Their team truly operates as a strategic partner, not just a development vendor The communication was excellent throughout the entire process. We always knew where things stood, timelines were clear, and any issues or changes were handled proactively and transparently. For a project as complex as ours involving pricing logic, user flows, financing options, compliance considerations, and scalability this level of clarity and responsiveness made a huge difference.
What really stood out was Tepias attention to detail and commitment to quality. The app they helped build is stable, clean, intuitive, and built with long-term growth in mind. They were thoughtful about architecture, performance, and future enhancements, which is critical for a company like ours that plans to scale aggressively.
They were also extremely flexible and patient as our requirements evolved (which happens in real-world startups). Instead of pushing back, they collaborated with us to find smart, efficient solutions that aligned with our vision and budget.
If youre a founder or business owner looking for a team that:
Truly understands mobile app development
Communicates clearly and consistently
Thinks strategically, not just technically
Delivers high-quality, scalable work
I highly recommend Tepia Co without hesitation. They have been a trusted partner in bringing RELI to life, and we look forward to continuing to work with them as we grow
Ara Agopian
CEO at Solar Insure
5.0★
Mobile App Development Review from Ara Agopian
I had a great experience with Tepia on our mobile app development. The project was managed very well and finished on time. Thank you Tepia!
Reviews verified by DesignRush and sourced from the agency's profile
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Novacomp is a leading regional IT services company with over 25 years of experience assisting businesses in their digital transformation through solutions such as IT outsourcing, dedicated teams, IT consulting, staff augmentation, QA and software testing, app development, cloud services and more...
Top Services:
Software Development
Mobile App Development
Software Testing
IT Services
Staff Augmentation
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Location
Miami, Florida
Number of Employees
500 - 999
Average Hourly Rate
$40/hr
Minimal Budget
$50,000 & Up
Portfolios Count
5 Projects Listed
Novacomp Services
Software Development
Mobile App Development
Software Testing
IT Services
Staff Augmentation
Cybersecurity
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Innolab AI builds revenue engines, not just software. Jane creates pipeline. Luna closes it.
Innolab AI builds AI systems that sell for you.
Jane replaces SDR teams with automated, hyper-personalized outbound.
Luna calls and books meetings 24/7 with human-like conversations.
We help B2B leaders generate pipeline, cut admin time, and scale revenue without chaos...
Top Services:
AI Development
Mobile App Development
Web Development
Software Testing
Blockchain
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Location
Columbus, Ohio
Number of Employees
50 - 99
Average Hourly Rate
$59/hr
Minimal Budget
$50,000 & Up
Portfolios Count
2 Projects Listed
Innolab Services
AI Development
Mobile App Development
Web Development
Software Testing
Blockchain
Staff Augmentation
UI/UX Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Flonest
Dollar Shave Club
Buddy Lee Jump ropes
Data sourced from the agency's DesignRush profile
Innolab Reviews & Testimonials
Buddy Lee
CEO at Buddy Lee Jump Ropes
5.0★
B2C Apps Review from Buddy Lee
Innolab delivered exactly what we needed a high quality, AI powered jump training app with realtime feedback and sleek design.
The team was professional, collaborative, and hit every milestone on time. Highly recommend them for any innovative app development.
Reviews verified by DesignRush and sourced from the agency's profile
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A lifelong partner to solve any tech challenge together
Hi there! We were expecting you!
We are a nearshore software services and consulting company that partners with forward-thinking companies to achieve their business goals and accelerate growth in the digital age.
We are seen as a lifelong partner for tackling any tech challenge...
Top Services:
Software Development
Mobile App Development
IT Services
UI/UX Design
Web Development
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Location
Austin, Texas
Number of Employees
100 - 249
Average Hourly Rate
$70/hr
Minimal Budget
$50,000 & Up
Portfolios Count
1 Project Listed
Switch Software Solutions Services
Software Development
Mobile App Development
IT Services
UI/UX Design
Web Development
Software Testing
AI Development
VR/AR
Cloud Consulting
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Penske Logistics
Santander Consumer
Zenus Bank
Verifone
BBVA Bank
Axletree
Oddissey
BCIE
Sodexo
Allied World
Data sourced from the agency's DesignRush profile
Switch Software Solutions Reviews & Testimonials
Hernán Garro
Review from Google
5.0★
Hernán Garro's Review Sourced from Google
Excellent working place. People is the most valuable characteristic. Interest in continuous improvement is not less remarkable. It is a comfortable place to work with plenty of amenities.
Andres Sierra
Review from Google
5.0★
Andres Sierra's Review Sourced from Google
Test your software before taking it to production, do it with what you are developing or with what you are buying.
Reviews verified by DesignRush and sourced from the agency's profile
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At LKICORP®, we provide expert engineering services to clients across a range of industries. Our team of skilled engineers has experience in mechanical, electrical, and environmental engineering, among others. We work closely with our clients to understand their unique needs and develop customized solutions...
Top Services:
Mobile App Development
Software Testing
VR/AR
Blockchain
Software Development
Show more
Location
Pittsburgh, Pennsylvania
Number of Employees
1000 & Up
Average Hourly Rate
$300/hr
Minimal Budget
$50,000 & Up
LKICORP Services
Mobile App Development
Software Testing
VR/AR
Blockchain
Software Development
AI Development
Wearables
Product Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
A top custom software development firm dedicated to delivering bespoke digital products that drive innovation and help you achieve your brand goals. A full-stack developer with expertise in every major platform and language, we design and deliver custom applications and host and maintain the solutions we...
Top Services:
Software Development
Mobile App Development
UI/UX Design
Software Testing
WordPress Website Design
Show more
Location
Spring, Texas
Number of Employees
Under 49
Average Hourly Rate
$150/hr
Minimal Budget
$50,000 & Up
Espresso Moon Services
Software Development
Mobile App Development
UI/UX Design
Software Testing
WordPress Website Design
eCommerce Development
Web Development
AI Development
VR/AR
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
DistributionNOW
Tesla
Nucor Steel
Everest Funeral Concierge
Flexitallic
Solvay Dental
Stream Realty
Wilson Perumal
Neuhaus Academy
SafeFleet
Data sourced from the agency's DesignRush profile
Espresso Moon Reviews & Testimonials
Bradley Collins
Review from Google
5.0★
Bradley Collins's Review Sourced from Google
Working with the guys at Espresso Moon (Scott, Doug, Tim and Dwayne) was truly a great collaboration and experience. They didn't just throw a website together for us, they helped us to reinvent ourselves. They go out of their way to get to know you and your business to the fullest extent, and that is a quality that is not often seen. If I were to recommend a web design/hosting company to anyone, Espresso Moon would be the one and only name I give. Thank you for your service and support!
Meredyth Jones
Review from Google
5.0★
Meredyth Jones's Review Sourced from Google
I worked primarily with Scott, Tim and Doug to build a fairly complicated site: Paypal/credit card payments, video training modules, a graded quiz, and issuance of a completion certificate. They were the only website company that invited me to an in-person meeting and that was tremendously helpful in me understanding how they work and them understanding my goals. Large Animal Consulting & Education launched 2 days ago and the site is running smoothly. I'm very happy with the site they designed (they also designed my logos) and am looking forward to using them to support and add to the site down the road.
Caleb Schallert
Review from Google
5.0★
Caleb Schallert's Review Sourced from Google
Doug Wheeler is the owner of Espresso Moon and he has provided my small business excellent IT technical support for our website. His team helped me out by removing malicious code that was affecting my site right after the Heart Bleed epidemic last year. He got my site back up and running so i could continue business and save my online reputation. I would recommend Espresso Moon LLC to anyone in need of a new website or mobile application because they follow through with what they promise to do, on time and on budget. They are truly a pleasure to work with!
Reviews verified by DesignRush and sourced from the agency's profile
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At 2am.tech, we use strategy, design, and technology to create transformative experiences that impact your customers, employees, and business...
Top Services:
Software Development
AI Development
Web Development
IT Services
Software Testing
Show more
Location
Coral Springs, Florida
Number of Employees
50 - 99
Minimal Budget
$50,000 & Up
Portfolios Count
1 Project Listed
2am.tech Services
Software Development
AI Development
Web Development
IT Services
Software Testing
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Deallus
Addio
Benchmark54
Data sourced from the agency's DesignRush profile
2am.tech Reviews & Testimonials
Mariano Rossi
Review from Google
5.0★
Mariano Rossi's Review Sourced from Google
Working with 2am.tech has been an outstanding experience. Their team is highly professional, communicative, and truly understands the needs of their clients. From the initial consultation to the final product delivery, they demonstrated a deep technical expertise and a commitment to excellence.
I highly recommend 2am.tech to anyone looking for high-quality software development and consulting services. Their dedication and technical knowledge make them a top choice in the industry.
Nancy Konter
Review from Google
5.0★
Nancy Konter's Review Sourced from Google
Great attention to detail and very responsive to the client. I highly recommend 2am Tech for your custom software needs!
Josh Mendel
Review from Google
5.0★
Josh Mendel's Review Sourced from Google
Working with the team @ 2am Tech has been amazing. They are very well organized, conduct themselves with the highest level of professionalism and produce amazing work. Highly recommend!
Reviews verified by DesignRush and sourced from the agency's profile
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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
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Location
Bellingham, Washington
Number of Employees
100 - 249
Average Hourly Rate
$80/hr
Minimal Budget
$50,000 & Up
KIS Solutions Services
Managed Services
IT Services
DevOps Consulting
Staff Augmentation
AI Development
Software Development
Software Testing
CRM Consulting
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
We're a leading IT custom software firm with 30 years of experience in LATAM. Our elite 10% developer team delivers top-notch quality, speed, and affordability, as proven by clients like Motorola, Intel, IBM, and Oracle. We offer Software Dedicated Teams and Staff Augmentation to boost your project...
Top Services:
Software Development
Staff Augmentation
Software Testing
IT Services
HR Outsourcing
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Location
Atlanta, Georgia
Number of Employees
500 - 999
Average Hourly Rate
$40/hr
Minimal Budget
$50,000 & Up
Vates Services
Software Development
Staff Augmentation
Software Testing
IT Services
HR Outsourcing
Big Data Analytics
Web Development
Cloud Consulting
DevOps Consulting
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Your leading data and product engineering partner.
EmbarkingOnVoyage Digital Solutions is your premier partner in data and product engineering, empowering technology companies, large enterprises, and SMBs to transform industries such as travel, healthcare, banking, finance, and more through innovative solutions. We specialize in revolutionizing technology and...
Top Services:
Digital Services
Mobile App Development
Software Development
Software Testing
Web Design
Show more
Location
Darnestown, Maryland
Number of Employees
50 - 99
Average Hourly Rate
$40/hr
Minimal Budget
$50,000 & Up
EmbarkingOnVoyage Services
Digital Services
Mobile App Development
Software Development
Software Testing
Web Design
UI/UX Design
DevOps Consulting
Staff Augmentation
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
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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