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.
𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 is one of the main areas of DevIT work. Our team has extensive knowledge of various technologies. This allows us to create fast, flexible, responsive, attractive, and user-friendly stores and Shopify apps...
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Applications Review from Denis Khorolsky
We worked with DevIT on a Shopify app for one of our ecommerce clients. The app handled product personalization, pricing rules, and personalized order data, while our team worked on the main Shopify platform and customer experience. The teams worked well together, and the client was able to launch the new feature without changing the existing store.
Small Businesses Website Development Review from Oleksandr Romanov
We worked together with DevIT Group on a financial operations platform for a shared client. Our team focused more on the core product and Python backend, while DevIT handled the infrastructure side using Node.js services built with NestJS and Fastify.They worked on integrations, payment flows, internal APIs, notifications, and async processing between different services. A lot of the project depended on things working reliably in the background, and their part stayed stable even as new integrations were added later.The collaboration felt pretty easy overall. Most discussions were direct and technical, without too much unnecessary process around them.
Small Businesses Website Development Review from Viktoriia Rekonvald
We worked alongside DevIT Group on a fintech platform for a shared client. Our team handled the blockchain layer, while DevIT was responsible for the web application built on a MERN stack.They took care of the full application layer, including the React frontend and Node.js backend. Their part covered wallet connection flows, transaction tracking, and syncing on-chain data with the app. The way they handled API logic and off-chain data storage kept the system predictable even when blockchain confirmations were delayed.
M TECHUB LLC Leading Mobile App Development & Staff Augmentation Company in the USA...
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Mobile App Development Review from Amber Irish
M TECHUB LLC developed our logistics mobile app with real-time shipment tracking, driver management, route updates, delivery status, and an admin dashboard. Their team understood the operational needs of the logistics industry and delivered a reliable, easy-to-use solution. Communication was smooth, and we were very satisfied with the final product.
Mobile App Development Review from Olivia Smith
We have worked with M TECHUB LLC as our B2B software development partner on multiple client projects. Their team has supported us with mobile app development, web applications, backend development, and custom software solutions. They are reliable, responsive, and flexible with changing project requirements. M TECHUB LLC has been a valuable development partner, and we highly recommend them for B2B software development and technical outsourcing.
Software Development Review from Victor Lue-Yat
We have been working with M TECHUB since 2023 on software and application development projects, and they have become a valued technology partner to our company. Their team has consistently demonstrated strong technical capabilities, responsiveness, and a genuine commitment to delivering quality work. They communicate well, are receptive to feedback, and work collaboratively with us to solve challenges and continuously improve our applications. What I appreciate most is their reliability and willingness to work through complex requirements rather than simply completing assigned tasks. Over the years, we have developed a strong working relationship and considerable trust in their team. Based on our experience since 2023, I am very comfortable recommending M TECHUB to companies looking for a dependable software development partner.
PFLB provides teams with a cloud-based load testing platform and exceptional performance testing services...
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Performance Testing Review from Kate Ryder
PFLB Demonstrate their work in helping us identify and fix bottlenecks, memory leaks, and other issues that could cause crashes or system failures, ensuring a stable and dependable system.
Performance Testing Review from Lilia Borisova
We engaged PFLB to ensure optimal performance and scalability of our flight booking website through extensive load testing. By simulating high user loads, PFLB identified bottlenecks, optimized system responsiveness, and provided actionable recommendations for improvement. Their expertise enhanced our website's performance, delivering a seamless booking experience.
Performance Testing Review from Sergey Belets
Our smart contract validation software had a high demand, so we conducted thorough stress tests with PFLB's expert team. They resolved multiple performance issues before the launch. We continue to utilize PFLB's in-house platform for testing subsequent software versions.
Product engineering partner for USA startups and enterprise teams (incl. NASDAQ/NYSE). Build web & mobile apps ~30% faster at ~40% lower cost. ISO 9001:2015 + ISO/IEC 27001:2022 certified for quality and security. +1 (505) 464-6100...
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Startups Software Development Review from Hector Castillo
We engaged with aTeam with the goals of designing and building a web app for out customers to monitor and control their IoT devices as well as an admin panel for our team to manage users and devices. I was most impressed by the fact that aTeam did some initial work and wireframing during initial discussions which gave us confidence that aTeam has a solid understanding of our goals and vision before hiring them.I think the main area of improvement is how QA and testing was done and the impact on our timeline. aTeam was good about delivering milestone deliverables on schedule, but there were often issues that would arise in our own testing that were not caught earlier in their testing, which would create additional work. I think impacts to our timeline could have been minimized if their testing had been more thorough and tailored to the user experience, and if expectations were made clearer at the beginning that, after the final milestone was delivered, there would still be an additional debugging period. Otherwise, aTeam was very good about sticking with issues until resolved. Overall, I would be very happy and willing to work with aTeam again in the future and to refer them to others.
Mobile App Development Review from Anonymous
It’s been pretty cool using this app for handling all our company’s accounting stuff. You just snap pics or upload your receipts and docs right from your phone, which saves a ton of hassle. On the other side, the accounting team can grab everything they need from the web dashboard, so no more chasing papers or emails back and forth. It’s made tax time way less stressful, especially since it’s tailored for the UAE rules and all that. Plus, the folks behind it don’t just drop the app and disappear, they actually keep checking in, throwing out ideas, and sometimes pushing us to think differently. Communication’s been smooth, and they’re not just doing what you ask but really getting into the project. Definitely a game-changer for us.
Web Development Review from Anonymous
We needed a fresh website that actually worked for us, something that could pull in new folks and keep our regulars in the loop without feeling like a hassle. These guys nailed it. The site looks great and runs super smooth, which honestly makes a big difference. Plus, they helped set up a way to grab emails from visitors, so we’re actually turning clicks into real leads now. They’re pretty chill to work with, always open to ideas and explaining stuff without the techy mumbo jumbo. Definitely made the whole process way less stressful than I expected.
At SPEC INDIA, we are Empowering businesses with AI in the digital world. With more the 36+ years of experience in the tech space we have been delivering bespoke software solution that power businesses worldwide. Our commitment and assurance of quality makes us stand out in the market....
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Software Testing Review from Cas Diependaal
Through SPEC India we've hired a QA automation specialist who has helped us set up testing automation for our software. The service was professional, friendly and well executed. It was a smooth experience to hire a resource and assign it to the tasks we needed them to perform.
Software Development Review from Ron Eliot Dichter
Spec has been a good partner to work with for my project. They're responsive and nimble. They provide good feedback and creative suggestions for solving challenges and building the features. I've appreciated their collaboration while working on my software.
Dashboard Design Review from Keshav Lohiya
We have been very happy with the support we have received for the last 2 years. Spec India helps small businesses like ours to remain agile, competitive and stay at the forefront of technological innovation.
75+ Mobile Apps Shipped. 12+ Apps Featured by Apple & Google. 20M+ Downloads...
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Mobile App Development Review from Domenic Fraboni
We couldn't be more pleased with our experience with TouchZen. They took over a bad situation left behind by our previous development team and have been able to continue to build new features while cleaning up the old project. We have been very pleased with their developers responsiveness as well as the project management. I would highly recommend working with them for any of your web or mobile app development needs.
B2C Apps Review from Brett Lassig
We have been extremely impressed with TouchZen's development team behind the Get Cover Mobile App. Their approach has been collaborative, and responsive to the needs of our warranty and claims environment.The app is intuitive for end users while still delivering the robust functionality needed on the backend, especially around claims processing, and real-time updates.Their diligence has made a significant impact. Features like streamlined claim submission, status tracking, have enhanced both customer satisfaction and operational efficiency.Overall, this highly capable and professional development team has delivered quality work and stands behind it. We look forward to continuing to build and scale with them.
Mobile App Development Review from Dr Asa Frey
They worked on our app and continue to work on it to this day. We originally had a bad experience with various developers and ended up with a bunch of code and no functioning app - touchzen took the code and audited it and made it work and it work great now. Can't complain - still going to work with them and I would recommend to anyone who wants it done right.
Debut Infotech is a leader in advanced technological solutions, specializing in AI, Blockchain, Smart Contracts, IoT, and mobile and web development...
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James Carter's Review Sourced from Google
Our company aimed to launch a trading platform but struggled with security planning and system performance. Debut Infotech supported us with crypto exchange development services using Node.js, blockchain integration, and secure wallet APIs. Their solution helped us deploy a stable exchange environment with improved transaction handling.
Andrew Ethan R.'s Review Sourced from Google
Debut Infotech efficiently addressed the performance and scalability challenges in our mobile app. They quickly diagnosed the issues and delivered a stable solution using up-to-date development tools. The project was completed on time with clear communication throughout.
Blunt David's Review Sourced from Google
I had the pleasure of working with Debut Infotech for DeFi development, and I am extremely satisfied with their expertise and service. Their team utilized a comprehensive suite of tools, including smart contract generators, DeFi protocol integrators, and liquidity pool management tools, all of which streamlined the development process. They not only helped us build secure and scalable decentralized finance solutions, but also provided automated yield farming and staking platforms that significantly boosted user engagement. Their focus on security, with built-in auditing tools, gave me confidence throughout the project. I highly recommend Debut Infotech to anyone looking for reliable, efficient, and innovative DeFi development.
We specialize in leveraging the latest technologies and industry best practices to drive business growth and foster innovation...
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Software Development Review from Kerry Cooper
We partnered with Softellar to modernize our patient records management system and improve overall healthcare delivery, and the results have been outstanding. The project was essential for us, especially during the pandemic, when remote care became a necessity. Softellar's team developed a comprehensive healthcare solution that seamlessly integrated a central patient records management system, telemedicine capabilities, remote health monitoring features, and full regulatory compliance.Their deep understanding of our unique needs and workflows allowed them to customize the solution effectively, creating a user-friendly system that reduced delays and significantly improved patient care. The telemedicine functionality ensured uninterrupted care during the pandemic, while remote health monitoring provided us with valuable insights into patient conditions, enabling proactive interventions.What impressed us most was Softellars flexibility and responsiveness. They delivered the project on time, made adjustments when needed, and ensured the system worked perfectly with our existing infrastructure. Their attention to detail and commitment to user experience made the system easy to adopt with minimal training for our staff.
Staff Augmentation Review from Ariel Elkayam
Softellar has been a game-changer for LoanStreet, providing exceptional IT Staff Augmentation that seamlessly integrated with our team. They invested time in understanding our platforms needs, demonstrating a deep grasp of our technical and business objectives. Their engineers were not only highly skilled but proactive problem solvers, helping us tackle challenges in real-time data tracking and loan portfolio performance. They also proved remarkably adaptable, adjusting to regulatory-driven priority shifts without sacrificing quality or efficiency.One standout project involved enhancing our platforms user experience for credit unions, banks, and lenders. Softellar's team went beyond mere implementation by offering valuable feedback on design and usability, significantly improving client engagement and satisfaction. They also provided comprehensive post-project support and knowledge transfer, empowering our team to manage and scale independently.
Founded in 2013, Mind Studios is a custom software development company working with growth-stage and mid-market businesses across the US, UK, Europe, and MENA...
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Ingsoftware is a full-stack adaptive software development partner for growth-minded organizations...
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Software Development Review from Brittany Smith
Great company to have work on your project. Very knowledgeable and truly act as industry experts to their clients to advise them in the best direction. We use ING as our white-label partner and put them through an extensive interview process that lasted 3 weeks. They passed with flying colors. Our first interaction/project was a custom project for one of our partners and they impressed and delivered on time. Our customers are always happy with the deliverables.
Most businesses know something is slow or broken. They don't know exactly what to fix, or where AI actually fits. We start there: map your processes, find the highest-ROI automations, then build, run, and help your team adopt them as your ongoing AI automation partner. Certified n8n Expert Partner, Clutch...
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PencerTech offers tailored technology solutions, including custom software, mobile app development, website design, and system integration, helping businesses grow and succeed in the digital world...
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Tech.us is an AI software solutions company that provides AI development, mobile applications, cloud consulting, and IT services. We focus on creating secure, scalable, and innovative technologies that support businesses in their digital journey...
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Band Of Coders is a full service development shop with offices in Atlanta, Los Angeles, Milwaukee, and Nashville. We pride ourselves in providing our customers with the benefits of working with a global firm combined with the flexibility and personal touch of a locally run company...
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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...
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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%).
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:
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.
Before hiring a US software testing firm, consider asking these questions:
Selecting the right testing partner requires careful evaluation beyond surface-level factors.
Common mistakes include:
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.
Per the State of Testing Report, these are the most common metrics businesses are using to measure a software testing team’s effectiveness:
Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding software testing companies in the United States. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.
Learn more about DesignRush Agency Ranking Methodology.
DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
They provide a comprehensive range of services designed to validate and improve software quality through systematic evaluation and advanced tooling.
Core testing services include:
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.
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:
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.
Beyond project scope, complexity, and timeline, these are additional costs to consider when working with software testing agencies in the USA:
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.
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:
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