Our directory is designed to help you find the right software testing company in the USA, based on five ranking criteria, expert review, and 1,300 verified client reviews.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
TechnoYuga is a leading AI-Native product engineering company established with the vision of helping startups, SMEs, and enterprises build powerful, scalable, and future-ready technology solutions that drive real business growth...
Top Services:
- Mobile App Development
- Software Development
- IoT
- Blockchain
- AI Development
- Show more
- Location
- New York City, New York
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 23 Projects Listed
GMTA Software specializes in creating customized websites and mobile app development solutions as an expert software developer. Our team guides you on your path to digital transformation by establishing an open and transparent communication bridge...
Top Services:
- Mobile App Development
- Web Development
- Web Design
- Software Testing
- Software Development
- Show more
- Location
- Texas City, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 38 Projects Listed
Ecommerce engineering agency for Adobe Commerce (Magento), Shopify Plus, SFCC, Medusa and Shopware. B2B portals, ERP integration (SAP, NetSuite, Dynamics), replatforming, rescue of failing builds, team extension. Adobe Commerce Silver, Hyvä Bronze Partner. Est. 2009, 200+ engineers, Europe and US...
Top Services:
- eCommerce Development
- Web Development
- Mobile App Development
- Software Testing
- Cloud Consulting
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 20 Projects Listed
a1qa is a global quality engineering company helping businesses release software with confidence. From software testing and automation to AI-powered quality engineering, we deliver measurable quality outcomes at scale...
Top Services:
- Software Testing
- Managed Services
- IT Services
- Staff Augmentation
- Show more
- Location
- Decatur, Georgia
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 16 Projects Listed
Sunflower Lab is a Microsoft Solutions Partner delivering Power BI, Power Automate, Power Apps, Dynamics 365, SharePoint and Copilot, plus AI agents and AI automation. We are also an award-winning builder of custom web and mobile digital products...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- Software Testing
- IoT
- Show more
- Location
- Hilliard, Ohio
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 7 Projects Listed
Softeq is a versatile technology and Greentech company offering a wide range of services, including embedded system development, machine learning, digital transformation, hardware design, UX/UI design, and more...
Top Services:
- Mobile App Development
- Software Development
- Software Testing
- Blockchain
- Wearables
- Show more
- Location
- Houston, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 8 Projects Listed
Alt Digital Technologies is a B2B service provider servicing end to end development, DevOps, Testing and e-commerce solutions for your business. We work efficiently in ATG, Java, React, Salesforce, WordPress and majorly all technologies...
Top Services:
- Web Development
- eCommerce Development
- Mobile App Development
- Software Development
- Software Testing
- Show more
- Location
- Florida City, Florida
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Your Digital Innovation Partner. Accelerating innovation through AI, software development, and digital transformation.At Rootstack, we help organizations build scalable digital products, modernize operations, and unlock new business opportunities through technology...
Top Services:
- Web Development
- Software Development
- Mobile App Development
- Managed Services
- Software Testing
- Show more
- Location
- Austin, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 42 Projects Listed
Akveo is an AI consulting and software development company, helping organizations build, modernize, and scale digital products...
Top Services:
- Mobile App Development
- AI Development
- Software Development
- Web Development
- Software Testing
- Show more
- Location
- Austin, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
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
- Show more
- Location
- Costa Mesa, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 2 Projects Listed
Engineered with integrity. Backed by mentorship. Delivered with care. BTS transforms ideas into scalable, secure, and impactful digital products that deliver long-term value...
Top Services:
- Software Development
- AI Development
- Big Data Analytics
- Mobile App Development
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 11 Projects Listed
We are an Affordable Digital Marketing Agency in Shawnee with budget-friendly solutions to amplify your brand. RevoluteX Digital: Your digital success catalyst! Specializing in Google marketing, website development, and social media magic, we craft online experiences that captivate and strategies that...
Top Services:
- Digital Services
- Web Design
- WordPress Website Design
- Digital Marketing
- SEO
- Show more
- Location
- Shawnee, Kansas
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
tkxel is an AI engineering partner helping businesses turn AI ambition into real, measurable outcomes. We design, build and deploy intelligent solutions, agentic systems, modernized applications and custom software that work in production, not just in pilots...
Top Services:
- AI Development
- Software Development
- Cloud Consulting
- Cybersecurity
- Mobile App Development
- Show more
- Location
- Reston, Virginia
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $35/hr
- Portfolios Count
- 19 Projects Listed
Quest Global Technologies is a global leader in development & consultation of cutting-edge Blockchain, Metaverse, AR/VR, QA, Automation, Salesforce & Web3 advancements...
Top Services:
- Blockchain
- AI Development
- Digital Marketing
- IT Services
- Software Testing
- Show more
- Location
- Gilbert, Arizona
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
An ecosystem for B2B/ B2B2C websites on multiple platforms with robust technology and a customer-oriented mindset...
Top Services:
- eCommerce Development
- Web Development
- Software Development
- Web Design
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 250 - 499
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 10 Projects Listed
Phenologix helps startups, SMBs, and enterprises build scalable software, automate operations, and accelerate digital transformation. With a skilled engineering team and over 14 years of experience, we deliver AI, automation, and custom software solutions that improve efficiency and reduce manual work. Our...
Top Services:
- AI Development
- Software Development
- Staff Augmentation
- Web Development
- eCommerce Development
- Show more
- Location
- Austin, Texas
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
Tabdelta is a global AI-driven software development company in New York USA delivering innovative digital solutions to startups, SMBs, and enterprises across New York and worldwide...
Top Services:
- Software Testing
- Software Development
- AI Development
- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
A technology partner for modern business building and AI-Powered software, scalable SaaS platforms, and intelligent automation systems...
Top Services:
- Web Design
- Web Development
- IoT
- AI Development
- Software Development
- Show more
- Location
- Newark, Delaware
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Portfolios Count
- 8 Projects Listed
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...
Top Services:
- eCommerce Development
- Web Development
- Managed Services
- Web Design
- Mobile App Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
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
AI-augmented software development company. Senior developers + AI-powered workflows delivering production-ready SaaS, web, mobile, AI, desktop apps, and custom Chromium browsers. For startups, growing businesses, and enterprise...
Top Services:
- Software Development
- UI/UX Design
- Web Development
- Cloud Consulting
- DevOps Consulting
- Show more
- Location
- New York City, New York
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
AwsQuality is a technology consulting company helping businesses design, build, and scale reliable digital solutions. We work across Salesforce, AI, Cloud, DevOps, Mobile, and Web delivering measurable outcomes through engineering quality, transparency, and long-term partnership...
Top Services:
- Web Design
- Web Development
- Mobile App Development
- AI Development
- Software Development
- Show more
- Location
- Ruston, Louisiana
- Number of Employees
- 50 - 99
- Minimal Budget
- Under $1,000
As a trusted bespoke software development outsourcing company, we help business organizations tackle challenges of outdated software, inefficient processes, and poor digital presence...
Top Services:
- Software Testing
- AI Development
- Software Development
- Mobile App Development
- CRM Consulting
- Show more
- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Minimal Budget
- $10,000 - $25,000
Helping Texas businesses grow with fast, mobile-friendly websites. Based in Cedar Park, TX. We build websites that work, optimize them for visibility, and implement strategies that increase sales and drive measurable business growth...
Top Services:
- Web Design
- Web Development
- Social Media Marketing
- SEO
- Content Marketing
- Show more
- Location
- Cedar Park, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $10/hr
- Portfolios Count
- 1 Project Listed
Embedded Engineering Solutions is a small efficient team of senior engineers specializing in firmware, embedded systems, hardware and software development. You work directly with egineers to bring your product idea to life without unnecessary costs and delays...
Top Services:
- Software Development
- IoT
- AI Development
- Wearables
- Software Testing
- Show more
- Location
- Tempe, Arizona
- Number of Employees
- Under 49
- Average Hourly Rate
- $165/hr
- Minimal Budget
- Under $1,000
We deliver high-impact, scalable solutions by turning complex systems into efficient, reliable platforms.We help businesses cut through complexity and deliver software that performs, scales, and drives real results...
Top Services:
- Web Design
- Web Development
- WordPress Website Design
- Software Testing
- Mobile App Development
- Show more
- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
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
Custom web and mobile application design and development...
Top Services:
- Digital Strategy
- Web Design
- UI/UX Design
- Web Development
- Software Testing
- Show more
- Location
- Springdale, Arkansas
- Number of Employees
- Under 49
- Average Hourly Rate
- $250/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
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
Dev Loader is a founder-led Laravel development studio operated by Dev Loader, LLC, a US-registered company in Washington, DC. We rescue stalled Laravel SaaS applications, upgrade legacy codebases, and build narrow SaaS MVPs. Core services: application takeover, Laravel version upgrades, performance...
Top Services:
- Digital Services
- Web Design
- Web Development
- eCommerce Development
- Blockchain
- Show more
- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Congruent Software, headquartered in Bellevue, WA, delivers software development and IT consulting to global enterprises. With 30+ years and 3,000+ projects, the Microsoft and Salesforce partner specializes in AI, cloud, custom apps, data analytics, Dynamics 365, Salesforce and SharePoint...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Software Testing
- IT Services
- Show more
- Location
- Bellevue, Washington
- Number of Employees
- 100 - 249
Omax Tech is a custom software and SaaS delivery partner helping startups and mid-market teams ship products, AI MVPs, and cloud platforms. We combine product engineering, staff augmentation, and AWS DevOps across Allen, TX, Dubai, and Karachi — with senior ownership so quality doesn’t cliff when capacity...
Top Services:
- Web Design
- UI/UX Design
- Web Development
- Software Testing
- AI Development
- Show more
- Location
- Allen, Texas
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
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...
Top Services:
- Web Development
- WordPress Website Design
- Mobile App Development
- Software Development
- Software Testing
- Show more
- Location
- Miami, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- Under $1,000
We help midsize to enterprise organizations stay secure with manual penetration testing and any company needing compliance-driven penetration testing for PCI DSS, HIPAA, SOC 2, CMMC, or similar frameworks...
Top Services:
- DevOps Consulting
- IT Services
- Cybersecurity
- IT Compliance Solution
- Software Testing
- Show more
- Location
- Atlanta, Georgia
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $1,000 - $10,000
Sigma Design integrates design, engineering, and manufacturing capabilities under one roof. That co-location enables rapid prototyping, rigorous testing, and quality assurance in one place, lets us own a significant portion of the supply chain internally, and produces quick feedback loops and streamlined...
Top Services:
- Design Services
- Product Design
- Wearables
- IoT
- Software Testing
- Show more
- Location
- Camas, Washington
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
XpertPrime LLC is a US-based Zoho implementation partner and custom software development firm. We specialize in Zoho CRM, Zoho One, Zoho Creator, and full-suite ERP implementations for businesses across the United States, Canada, and New Zealand. With a 45+ engineer team and Zoho partner status, we deliver...
Top Services:
- Design Services
- Product Design
- eCommerce Development
- Digital Marketing
- Software Development
- Show more
- Location
- Dayton, Ohio
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
We provide top-quality custom software solutions and help tech companies scale up their teams...
Top Services:
- Digital Services
- Product Design
- Web Design
- Wearables
- Software Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
A trusted partner in software engineering and staff augmentation, delivering scalable products with a focus on quality over quantity. We provide comprehensive IT solutions tailored to your business needs...
Top Services:
- Web Development
- Staff Augmentation
- UI/UX Design
- Mobile App Development
- Software Development
- Show more
- Location
- Bronx, Idaho
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
We offer SEO, GEO and Web Dev services to professionals to get them ranking on search engine platforms and cited by AI...
Top Services:
- AEO
- SEO
- Digital Marketing
- Web Design
- Email Marketing
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
Beyond product development, Artilence also runs a growth and SEO practice, delivering content, local search optimization, and B2B outreach for its own brand and client accounts spanning healthtech, BPO, and civil engineering sectors...
Top Services:
- Web Design
- Web Development
- WordPress Website Design
- eCommerce Development
- UI/UX Design
- Show more
- Location
- St. Petersburg, Florida
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
Established: 2004 - This makes us more than 21 years old! And trust us when we say that, in the IT industry, that's like a lot!...
Top Services:
- Web Development
- Graphic Design
- eCommerce Development
- WordPress Website Design
- AI Development
- Show more
- Location
- Frisco, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $18/hr
We craft animated, interactive websites powered by 3D visuals, motion and modern development, helping brands stand out with immersive digital experiences. We help turn your initial idea into a high-quality, custom mobile solution designed to support and accelerate your growth...
Top Services:
- Mobile App Development
- Web Development
- Web Design
- Design Services
- Software Testing
- Show more
- Location
- Henderson, Nevada
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Metatech Official is a Mobile App Development Company in Pakistan delivering custom Android, iOS, and cross-platform applications for startups, SMEs, and enterprises. Our services include UI/UX design, backend development, API integrations, testing, and support. We also build ecommerce, fintech, healthcare...
Top Services:
- Mobile App Development
- Blockchain
- Software Development
- AI Development
- IoT
- Show more
- Location
- Houston, Texas
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
Software Testing Companies by City
Software Testing Companies by State
Popular Services
Hiring Guide: How to Choose the Best Software Testing Company in the US
What do the best software testing companies in the US do for businesses?
They help businesses reduce release risks, enhance user experience, and strengthen security posture by ensuring that the finished solution meets industry and business-specific standards.
In fact, research found that fixing bugs before product release results in 6.5x less cost than resolving the issue after launch.
Moreover, automating load and performance tests can accelerate the regression testing timeline by up to 90%.
Gartner’s study also found that the top reasons that organizations use automated testing are to improve product quality (60%), accelerate deployment speed (58%), and enhance department agility (41%).
How to choose the best company for your business?
To choose the best US software testing company for your business, evaluate its expertise and experience against your requirements. Here are some steps to guide you:
- Define testing requirements
Outline current software issues, testing goals and priorities, project scope, compliance requirements, budget, and timeline. - Search for relevant experience
Evaluate case studies and client references to find a company familiar with your industry-specific requirements, tech stack, and testing coverage and methodology. - Conduct due diligence
Assess the company’s certifications, vendor partnerships, awards and recognitions, and client reviews to confirm it’s trustworthy and credible. - Issue a request for proposal (RFP)
Provide a detailed project brief illustrating your business's current predicaments, so that the company can provide an accurate quote that aligns with your needs. - Schedule a consultation
Meet the team who’ll work on your project and request sample reports or pilot tests to further gauge project fit. - Make your decisions
Beyond technical proficiency, select an agency that aligns with your values and is capable of supporting your growing needs with flexible team sizes and service levels.
Need help finding a US software testing company? Visit our Marketplace and submit your project brief. We’ll connect you with the most suitable companies — free of charge.
What questions should you ask a US software testing firm before hiring?
Before hiring a US software testing firm, consider asking these questions:
Relevant Background
- How familiar are you with our industry-specific requirements? What deliverables can you provide to help us comply with the regulations?
- Can you share projects similar to our testing coverage, methodology, and criteria?
- What testing tools and frameworks do you use?
Services and Processes
- What is your software testing process — from discovery and planning to execution and reporting?
- How will you set up/manage test environments and test data?
- How do you balance manual vs automated testing? What are your criteria for automating tests?
- How do you handle access control, credentials, and confidentiality?
Relevant to Your Project
- What test types do you recommend for us, and why?
- What are your SLAs for triage, retesting, and regression after fixes?
- How do you measure quality and progress (coverage, defect trends, escape rate, release readiness)?
What are common mistakes to avoid when hiring a software testing agency?
Selecting the right testing partner requires careful evaluation beyond surface-level factors.
Common mistakes include:
- Choosing based solely on cost: The cheapest option often leads to lower quality, missed defects, and costly rework. Organizations should evaluate "results per dollar" rather than "hours per dollar."
- Failing to define requirements clearly: Vague project scopes lead to miscommunication, scope creep, and budget overruns. Clear documentation of testing objectives, success criteria, and testing entrance and exit criteria is essential.
- Underestimating testing needs: Setting up additional testing environments and infrastructures beyond the agreed scope leads to longer project timelines and higher fees. One way to avoid this is to ask the company to conduct audits, so you can more clearly define the testing needs and strategies.
- Neglecting long-term maintenance planning: Testing isn’t a one-time launch task. Without ongoing QA as the product changes, defects and security gaps reach users and become far more expensive to fix after release.
- Ignoring communication and cultural fit: Testing teams need to integrate with development workflows. Time zone differences and communication barriers can impact collaboration quality.
When asked about the most significant challenges to automated software testing deployment, struggles with implementation (36%), automation skill gaps (34%), and high upfront costs (34%) were among the most commonly reported.
How to evaluate the effectiveness of a US software testing firm?
Per the State of Testing Report, these are the most common metrics businesses are using to measure a software testing team’s effectiveness:
- Test coverage (56%): Compares how much of the software has been tested to determine the thoroughness of the testing process.
- Defect metrics (54%): Measures the number of identified defects, organizes them according to severity, and the rate at which they’re identified.
- Test execution metrics (45%): Monitors the speed, progress, and outcomes of running tests through test execution rate, test pass/fail/block percentage, and cycle time.
- Escaping defects rate (34%): Tracks the percentage of defects or issues identified after a software has been released.
- Test effectiveness metrics (25%): Identifies testing process performance in identifying defects and ensuring product quality before launch.
- Test economics (8%): Determines if the business maximizes the return on investment (ROI) of software testing.
Sources
DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
- Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
- The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
4.8
4.8Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
FAQs for Software Testing Companies
What services does a software testing company provide for your business in the United States?
They provide a comprehensive range of services designed to validate and improve software quality through systematic evaluation and advanced tooling.
Core testing services include:
- Quality assurance and testing strategy: Audits software and defines testing scope, priorities, coverage, approach, and reporting.
- Functional testing: Verifies that software features work according to specified business and functional requirements.
- Regression testing: Detects unintended issues introduced by system changes and releases.
- Performance and load testing: Measures the application’s reliability and responsiveness during peak usage.
- Security testing: Identifies and resolves security vulnerabilities and tests against compliance and governance requirements.
- Usability testing: Assesses user experience, interface intuitiveness, and overall accessibility of the solution.
- Integration and API testing: Validates how different system components and third-party services work together.
In addition to these services, software testing companies implement a mix of manual (often for exploratory and user experience-focused scenarios) and automated (repeatable checks throughout the development cycle for speed and consistency) testing models.
How much does software testing cost?
Software testing costs about 15%-25% of the development costs or 23% of the IT budget. In terms of hourly rates, US software testing companies charge an average of $100-$250 per hour, with more complex systems or specialized tests going beyond $300/hour.
The final rate will depend on solution complexity, testing coverage, quality requirements, project timeline, and current technical debt.
Here’s how much software testing costs as a percentage of the software development budget:
- Critical systems and highly regulated industries: 40%-50%
- Enterprise applications: 25%-35%
- Consumer-facing applications: 15%-25%
- Mobile applications: 20%-30%
In practice, basic one-time testing projects, such as a website penetration test, cost approximately $5,000-$10,000.
On the other hand, continuously evolving software solutions that require regular comprehensive testing can fetch between $20,000 and $70,000+ per month.
Are there any additional costs to consider when working with US software testing agencies?
Beyond project scope, complexity, and timeline, these are additional costs to consider when working with software testing agencies in the USA:
- Tooling and platform fees: Software license or subscription fees for device farms, performance testing platforms, and security scanning tools may be billed separately from the company’s overall rates.
- Device/browser lab coverage: For tests that require broad compatibility coverage, costs can increase based on access to real devices, operating system versions, and browsers.
- Scope growth: New testing requirements, additional integrations, new platforms (mobile/web), or expanding acceptance criteria often require a change order.
- Additional test cycles: Extra rounds of re-testing and regression tests beyond what’s defined in the service level agreement (SLA) incur additional costs.
- Defect remediation effort: Fixing defects is often outside the testing scope and is billed as an additional engineering or development fee.
- Compliance and security deliverables: If you require additional formal evidence (e.g., audit artefacts and traceability) or expanded security testing, expect incremental charges.
How long does software testing usually take?
On average, software testing takes around 20%-40% of the total software development time. However, the final timeline will depend on infrastructure complexity, test scope and methodology, and quality requirements.
Here’s an approximate software testing timeframe based on the typical software project schedules:
| Full Release Schedule | Software Testing Timeframe | |
Small software builds | 12-24 weeks | 2-4 weeks |
| Mid-sized builds (e.g., Fully customized mobile apps) | 16-40 weeks | 3-4 months |
| Large builds (e.g., Multi-module platforms) | 36-144 weeks | 6-12 months |
Notably, software testing is often integrated into the software development lifecycle (SDLC). As such, it’s common to see QA and testing done in 1-2-week sprints rather than a separate stage altogether.
What industries do US software testing firms typically work with?
US software testing providers work with a wide range of industries, as all digital solutions need to be tested in some capacity. However, these are the sectors that quality assurance (QA) and testing experts work in based on the State of Testing Report 2025:
- Tech: 35.2%
- Finance and insurance: 16.9%
- Others: 12.7%
- Healthcare: 10.9%
- Business and information: 4.5%
- Retail: 4.1%
- Marketing: 3.7%
- Transportation: 3%
- Government: 3%
- Gaming: 2.6%
- Education: 1.9%