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

16 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.

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  • Goosebelt

    Build a More Technology-Driven Business With Our Developers.

    Goosebelt is a premier software company specializing in custom software development and software outsourcing solutions. Our dedicated team of experts harnesses cutting-edge technology and innovative strategies to deliver tailor-made software solutions that drive business growth and efficiency...

    Top Services:

    • Software Testing
    • Mobile App Development
    • Software Development
    • UI/UX Design
    • Show more
    Location
    Orlando, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000

    Goosebelt Services

    • Software Testing
    • Mobile App Development
    • Software Development
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Natural Tech House
    • Piensa Wines
    • Investment Frequency Calculator
    • Crandon Camp
    • Equinox Group
    Data sourced from the agency's DesignRush profile

    Goosebelt Reviews & Testimonials

    • Jonathan Stahura
      Jonathan Stahura Director of Operations at Smith Micro Software
      5.0 ★

      Cybersecurity Review from Jonathan Stahura

      Goosebelt is exceptional in project management. They consistently adhere to schedules and demonstrate a commendable approach to budgeting. Our communication, primarily through email, has been smooth and efficient. Moreover, since partnering with them, we've experienced zero security breaches, which speaks to their expertise. I am thoroughly impressed with their attention to detail and clear, effective communication style.

    • Yann Caron
      Yann Caron Vice President of Sales at Witbe
      5.0 ★

      Mobile App Development Review from Yann Caron

      Our website became significantly more stable, with a remarkable increase in speed, thanks to their expertise. They successfully managed a large-scale migration by leveraging AWS ECS to seamlessly coordinate and automate our server and application infrastructure. The results exceeded our expectations, leaving us very proud of the outcome.

    • Anders Rong
      Anders Rong Vice President Research at Dalux
      5.0 ★

      Software Testing Review from Anders Rong

      We enlisted Goosebelt to test our social networking app, Dalux, for performance issues and bugs, and they delivered exceptional results. Their team carried out comprehensive testing, identifying and fixing potential bottlenecks that could have impacted the apps performance. Thanks to Goosebelt, our app now runs flawlessly, offering a smooth user experience.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.8 4.8 (6)

  • AMATECHXOFT INC.

    Built To Scale Backed By Trust

    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

    AMATECHXOFT INC. Services

    • Web Development
    • Staff Augmentation
    • UI/UX Design
    • Mobile App Development
    • Software Development
    • Cloud Consulting
    • DevOps Consulting
    • Software Testing
    • Web Design
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Flickpy
    • PWC
    • Growthforge Inc.
    • Americare Inc
    • Amefix IT
    Data sourced from the agency's DesignRush profile
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  • Kevych Solutions

    Verified Verified by the DesignRush team for authenticity and credibility.

    Expert-Vetted - TOP 1% in Mobile App Development

    Kevych Solutions isn`t just a software development team - we`re your partners in creating innovative, high-quality digital solutions that truly make an impact...

    Top Services:

    • Mobile App Development
    • Design Services
    • Software Development
    • Web Development
    • Staff Augmentation
    • Show more
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    43 Projects Listed

    Kevych Solutions Services

    • Mobile App Development
    • Design Services
    • Software Development
    • Web Development
    • Staff Augmentation
    • AI Development
    • Web Design
    • IT Services
    • VR/AR
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • eSIMo
    • GrowthBook
    • Holodex
    • Silo
    • Posted
    • Fara
    • Weanie
    • OffLesson
    • Spill
    • NetBird
    Data sourced from the agency's DesignRush profile

    Kevych Solutions Reviews & Testimonials

    • Vasco Rouw
      Vasco Rouw Founder at Mavelli
      5.0 ★

      Mobile App Development Review from Vasco Rouw

      Weve been working with Kevych Solutions full-time for over a year, and the experience has been excellent. They handle the complete end-to-end development of our AI-powered mobile apps, including UI/UX, frontend and backend development, AI integrations, infrastructure, deployment, and ongoing support. What stands out most is the extremely high level of their technical expertise and execution quality. They actively use AI and modern development workflows to maximize efficiency and deliver results quickly. The team is highly responsive, proactive, and always goes the extra mile to meet deadlines. Since working together, we scaled from 0 to over 100,000 subscribers in just 8 months, and our apps are now generating more than $1M in monthly revenue. Whenever challenges came up, we solved them together efficiently, and Kevych Solutions continuously adapted and grew alongside our projects. We highly recommend them to anyone looking for a reliable, high-level mobile app development partner.

    • Alex Kayaian
      Alex Kayaian Founder at Inbox Zapper
      5.0 ★

      Mobile App Development Review from Alex Kayaian

      Kevych was amazing to work with, and an integral part of our team. They delivered on time, with high quality, and consistent communication. You can't ask for a better partner when developing a project.

    • Lucas Chatham
      Lucas Chatham CEO at Daybreaker Health
      5.0 ★

      Mobile App Development Review from Lucas Chatham

      I had an excellent experience working with this engineering firm to build a React Native app. Oleg and Ihor were exceptional software engineerstheir technical skills were top-notch, and they consistently delivered clean, well-structured code on time. What really set this team apart was Volodymyr, their CTO. He was incredibly hands-on, maintaining clear and frequent communication throughout the project. He was always responsive and proactive in managing the work, which made the entire process smooth and stress-free. The team was professional, reliable, and genuinely committed to quality. They understood my requirements and provided valuable input that improved the final product. Highly recommend this firm for anyone seeking skilled developers and excellent project management!

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    4.9 4.9 (13)
    5.0 5.0 (37)

  • Internet Soft

    World Class Software Solutions

    Internet Soft, an IT company excels in providing state-of-the-art solutions. Our offerings include Digital Transformation, AI/ML, IoT, Banking, and Blockchain software solutions, customized to serve both B2B and B2C customers...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Blockchain
    • IoT
    • Show more
    Location
    San Jose, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000

    Internet Soft Services

    • Mobile App Development
    • Software Development
    • AI Development
    • Blockchain
    • IoT
    • Software Testing
    • UI/UX Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Airbnb
    • Magtek
    • Redbull
    • Unilever
    • Verizon
    Data sourced from the agency's DesignRush profile

    Internet Soft Reviews & Testimonials

    • Marcus Coleman
      Marcus Coleman Review from Google
      5.0 ★

      Marcus Coleman's Review Sourced from Google

      "Internet Soft exceeded our expectations with their exceptional website development services. From the initial consultation to the final launch, their team demonstrated a high level of professionalism, expertise, and dedication to our project. They listened attentively to our requirements and translated our vision into a stunning and user-friendly website. The design they created is not only visually appealing but also highly functional, providing an excellent user experience for our visitors. They paid meticulous attention to detail, ensuring that every aspect of the website, from navigation to responsiveness, was top-notch. Moreover, their efficient project management and communication made the entire process smooth and transparent. They kept us informed at every stage and were responsive to our feedback, making adjustments promptly. Thanks to Internet Soft, our online presence has been significantly enhanced, and we've received numerous compliments from our clients and users about the website's design and functionality. We couldn't be happier with the results and highly recommend Internet Soft to anyone seeking top-tier web development services. Kudos to the Internet Soft team for their outstanding work in bringing our website vision to life!"

    • Steve Fecske
      Steve Fecske Review from Google
      5.0 ★

      Steve Fecske's Review Sourced from Google

      Internet Soft stepped in as my development team providing their team of programmers to my platform. They are a group of talented, skilled, and conscientious in everything they do, assigning the best people they have to the various types of technology I needed from UI/UX, php, API, and database. They adopted my platform as theirs and immersed themselves to learn the processes, concepts, and workflows needed to fulfill the promise of our platform's services. They apply their technical skills to understand and write the necessary algorithms. They work hard and diligently to get projects fully defined before undertaking, and then get it done on time. They test their work, present it to our marketing team, then tweak, then provide public testing, and only when ready, open full access to the target audience and advertising. They are well organized to execute our needs by providing a project manager and project leader who communicate with me as to what I want, select the right development talent, and then present it to them so they understand what is required. They have also given me direct access to the developers to further ensure they understand my vision and needs. I have enjoyed their hard work and we have endured the details. I look forward to the results, and proudly recommend Internet Soft for your technology.

    • Jenya Babadzhanova
      Jenya Babadzhanova Review from Google
      5.0 ★

      Jenya Babadzhanova's Review Sourced from Google

      Internet Soft is a great company with managers and employees that are motivated, reliable, and persistent in whatever they do. Their strong work ethic can be seen in the mobile apps and software development projects that they create. They keep up with industry trends and always keep the client first in mind. I highly recommend their services to anyone looking to start a tech project.

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    4.9 4.9 (39)

  • Zco Corporation

    Strategize. Develop. Deliver.

    Your business faces unique challenges. Let's work together to create a custom mobile app or web solution to meet those challenges head-on...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • IoT
    • AI Development
    • Show more
    Location
    Nashua, New Hampshire
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed

    Zco Corporation Services

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • IoT
    • AI Development
    • UI/UX Design
    • Web Development
    • Software Testing
    • VR/AR
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Volkswagen
    • Harvard University
    • BBC America
    • Verizon
    • Liberty Mutual
    • Microsoft
    • Samsung
    • Eversource
    • APR Energy
    • Dartmouth College
    Data sourced from the agency's DesignRush profile

    Zco Corporation Reviews & Testimonials

    • Mark Gratiot
      Mark Gratiot Director of R&D at Streamline Automation
      5.0 ★

      Cross-Platform Review from Mark Gratiot

      In addition to building out a native remote inspection app for iPads, Zco concurrently ported the software to a Xamarin platform for Windows users. Zco has released nine major iterations of the iPad app, each available in the App Store, as well as the initial version of the cross-platform Xamarin build. Their nimble team boasts a wide breadth of skills to match any given situation. Having clear documentation upfront has reduced onboarding time.

    • Katie Matter
      Katie Matter Project Manager at Southwestern Advantage
      5.0 ★

      Mobile App Development Review from Katie Matter

      Zco Corporation provided full-stack mobile app development to an educational resource retail organization. They worked in Unity to build a cross-platform resource for users to advance through various curricula. The app has successfully been moved into preproduction and the second phase of development, completely satisfying project stakeholders with the quality of both its designs and functionality. The Zco Corporation team is highly creative and collaborative throughout their work.

    • J. Michael Webb
      J. Michael Webb CEO at CheckMySpot
      5.0 ★

      Startup Review from J. Michael Webb

      J. Michael Webb from CheckMySpot chose Zco Corporation for app development due to its expertise. Zco adeptly developed a hybrid mobile teledermatology platform and an admin website, demonstrating excellent communication, responsiveness, and innovation. Despite the project's evolving and innovative nature, Zco seamlessly integrated Webb's intent and met all challenges, leaving him with no suggestions for improvement. (Verified via email/call)

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    4.8 4.8 (5)
    4.8 4.8 (18)

  • CodeAegis Private Limited

    Giving Shape to Your Dreams

    CodeAegis is a leading software development company committed to delivering excellence in every project. With a global presence in UAE, USA, Kuwait, and India and eight years of experience, we have been providing innovative digital solutions that reflect our dedication to quality...

    Top Services:

    • Mobile App Development
    • Software Development
    • Blockchain
    • IoT
    • AI Development
    • Show more
    Location
    Irving, Texas
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    18 Projects Listed

    CodeAegis Private Limited Services

    • Mobile App Development
    • Software Development
    • Blockchain
    • IoT
    • AI Development
    • VR/AR
    • Wearables
    • Software Testing
    • eCommerce Development
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HP ProTrain
    • Ford
    • HEWE
    • AutoScrapMarket
    • Global Limos
    • Happy Marts
    • Diaspora Nigeria
    • amChain
    • Great Learning
    Data sourced from the agency's DesignRush profile
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  • SCALO

    Verified Verified by the DesignRush team for authenticity and credibility.

    Software Development / AI & Technology Consulting / Dedicated Developers

    Scalo is a software and AI development company based in Poland. We build custom software and help companies adopt AI through consulting and dedicated AI engineering teams. Client reviews point to one thing: dependable delivery, backed by almost 20 years in the market and 750+ completed projects...

    Top Services:

    • Software Development
    • Staff Augmentation
    • Software Testing
    • IT Services
    • UI/UX Design
    • Show more
    Location
    Austin, Texas
    Number of Employees
    500 - 999
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    7 Projects Listed

    SCALO Services

    • Software Development
    • Staff Augmentation
    • Software Testing
    • IT Services
    • UI/UX Design
    • Mobile App Development
    • AI Development
    • Big Data Analytics
    • Managed Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Asseco
    • ING
    • Change Donations
    • BNP Paribas
    • Onet
    • Santander
    • Volvo
    • Crif
    • Bitpanda
    • Vodeno
    Data sourced from the agency's DesignRush profile

    SCALO Reviews & Testimonials

    • Artur Bukowski
      Artur Bukowski IT Director at CRIF
      5.0 ★

      Software Development Review from Artur Bukowski

      The collaboration with Scalo is quite valuable to us. They enhance our development capabilities. Most of the people from Scalo have been working with us for a long time, which indicates that we’re satisfied with the collaboration.

    • Katarzyna Wieczorek
      Katarzyna Wieczorek Recruitment Manager at HRS
      5.0 ★

      Staff Augmentation Review from Katarzyna Wieczorek

      We know that Scalo is a good partner for companies which want to scale up their software development teams fast. They got great understanding of business needs, deliver experienced specialists, and know-how to build IT team in no time.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.5 4.5 (2)
    4.4 4.4 (10)

  • CodeStringers

    Zoho consulting, development and integration services for operationally complex organizations.

    CodeStringers helps growth-stage and small-to-mid-market companies implement, integrate, and operate Zoho-centered digital enablement solutions by combining senior executive consulting, cost-effective delivery teams, and custom software capabilities when needed...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • CRM Consulting
    • ERP Consulting
    • Show more
    Location
    Santa Cruz, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up

    CodeStringers Services

    • Software Development
    • AI Development
    • Web Development
    • CRM Consulting
    • ERP Consulting
    • Managed Services
    • Mobile App Development
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Tübr Storage
    • Addiction Rep
    • True Pet Kitchens
    • MasterControl
    • Tonal
    • MindTRAK Golf
    • Mido Play
    • Inboard Technology
    • SiteOne Services
    • KnowledgeDesk
    Data sourced from the agency's DesignRush profile

    CodeStringers Reviews & Testimonials

    • Lori Feld Oakley
      Lori Feld Oakley Executive VP at MasterControl
      5.0 ★

      Software Development Review from Lori Feld Oakley

      Our Services organization is scaling quickly and we urgently needed a custom software application to automate our workflows, without breaking our annual budget. CodeStringers was the perfect fit, supporting us from ideation through go-live and everything in between. They innovated, hit their deadlines and released an amazingly high quality application that decreases our internal costs and improves our reputation with our customers. It would not have happened without CodeStringers.

    • Christian Schraga
      Christian Schraga CEO at Tabula Learning
      4.8 ★

      Enterprise Review from Christian Schraga

      CodeStringers is the perfect outsourcer to call If you have a solid software business idea but don’t know exactly how to bring it to life. They have both a top-notch development team as well as an executive staff with expertise in marketing, finance, and general business acumen. So they can not only build a product for you but they can make sure that the product you want to build is likely to succeed in the marketplace.

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    4.4 4.4 (2)

  • CHI

    Together, beyond expectations

    CHI Software is a technology solution provider that offers a full set of software-based services from custom software development to maintenance & support. Our talented team is passionate about Generative AI, Cloud Computing, Data Engineering, and IoT. CHI's success comes from care of every client...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Web Development
    • Staff Augmentation
    • Show more
    Location
    Philadelphia, Pennsylvania
    Number of Employees
    500 - 999
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    12 Projects Listed

    CHI Services

    • AI Development
    • Mobile App Development
    • Software Development
    • Web Development
    • Staff Augmentation
    • Software Testing
    • IoT
    • Big Data Analytics
    • IT Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vodafone
    • Lecre
    • Media Mrkt
    Data sourced from the agency's DesignRush profile

    CHI Reviews & Testimonials

    • David Gornshtein
      David Gornshtein Co-Founder at Binadox
      5.0 ★

      Web Development Review from David Gornshtein

      My company was looking for a development team to proceed with the development process. We needed to set up a service [that] allows our clients to monitor, control, and optimize their Cloud & SaaS spend. [The] CHI Software team delivered services and technologies we need[ed] to reach our financial goals. (Verified via email)

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    4.3 4.3 (1)

  • TouchZen

    Verified Verified by the DesignRush team for authenticity and credibility.

    Premiere Mobile Applications

    75+ Mobile Apps Shipped. 12+ Apps Featured by Apple & Google. 20M+ Downloads...

    Top Services:

    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Design Services
    • Web Design
    • Show more
    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    11 Projects Listed

    TouchZen Services

    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Design Services
    • Web Design
    • Web Development
    • Software Testing
    • Software Development
    • Business Consulting
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • UCLA
    • Beachbody
    • FullyRaw by Kristina
    • Children's Hospital Los Angeles
    • Harman/Kardon
    • Amalfi Jets
    • JetBay
    • SHRED
    • Get Cover
    • Cancer Buddy
    Data sourced from the agency's DesignRush profile

    TouchZen Reviews & Testimonials

    • Domenic Fraboni
      Domenic Fraboni COO at The Mobility Method LLC
      5.0 ★

      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.

    • Brett Lassig
      Brett Lassig President at Get Cover LLC
      5.0 ★

      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.

    • Dr Asa Frey
      Dr Asa Frey president at Back to the Garden
      4.8 ★

      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.

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    4.7 4.7 (5)
    5.0 5.0 (19)

  • ObjectStyle

    Software as a passion.

    Established in 2002 in the USA, ObjectStyle stands as a distinguished software technology company. We are dedicated to offering comprehensive end-to-end IT services that encompass a wide spectrum of solutions. Our expertise spans various domains, ranging from web design and mobile app development to IT...

    Top Services:

    • Product Design
    • Software Testing
    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • Show more
    Location
    Fairfield, Connecticut
    Number of Employees
    50 - 99
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $10,000 - $25,000

    ObjectStyle Services

    • Product Design
    • Software Testing
    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • Cloud Consulting
    • IT Services
    • DevOps Consulting
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Sports Industry
    • Education Industry
    • Legal Industry
    Data sourced from the agency's DesignRush profile
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    5.0 5.0 (1)

  • Softeq

    A Versatile Tech Company!

    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

    Softeq Services

    • Mobile App Development
    • Software Development
    • Software Testing
    • Blockchain
    • Wearables
    • UI/UX Design
    • Cybersecurity
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Lenovo
    • Epson
    • Microsoft
    • WTA
    • NVIDIA
    • Verizon
    • G.J.Gardner
    • Walt Disney Parks and Resorts
    • Happiest Baby
    Data sourced from the agency's DesignRush profile

    Softeq Reviews & Testimonials

    • Quan Gan
      Quan Gan Owner at Gantom Lighting & Controls
      5.0 ★

      Software Development Review from Quan Gan

      We collaborated with Softeq to develop an infrared emitting platform. Softeq provided software development and support services, streamlining our project. While our hardware technology was excellent, Softeq elevated our company's products with superb software development and implementation solutions. Working with Softeq was highly beneficial for us, as the agency managed our projects more efficiently due to exceptional project management and organized workflows.

    • Jeff Johnston
      Jeff Johnston Founder and Chief Executive Officer at A-List Enterprises
      5.0 ★

      Mobile App Development Review from Jeff Johnston

      We hired Softeq for mobile app development services. Softeq developed a functional and user-friendly app, efficiently integrating productivity features like calendar, contacts, and task management. The agency organized regular meetings with our product management department, communicated effectively, and promptly resolved issues. Softeq's team worked diligently and provided valuable insights. We were satisfied with Softeq's services.

    • Trent Gardner
      Trent Gardner Information Technology (IT) Manager at G.J. Gardner Homes
      5.0 ★

      Software Development Review from Trent Gardner

      We worked with Softeq for software redevelopment services to improve our company's proprietary software. Softeq updated the business platform, streamlining operations and enhancing the platform's user UI and functionality. This improvement aided our sales, job estimating, purchase orders, and administration efforts. Softeq's team was professional, attentive, and prompt in implementing feedback. The agency delivered high-quality work, impressing our company's internal stakeholders.

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    4.8 4.8 (5)
    3.9 3.9 (7)

  • EltexSoft

    Senior Web, Mobile & AI Engineering

    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...

    Top Services:

    • Web Development
    • Mobile App Development
    • Software Development
    • Software Testing
    • AI Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $25,000 - $50,000

    EltexSoft Services

    • Web Development
    • Mobile App Development
    • Software Development
    • Software Testing
    • AI Development
    • Staff Augmentation
    • IT Services
    • Engineering
    • DevOps Consulting
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IT Industry
    • B2B Industry
    • Fintech Industry
    Data sourced from the agency's DesignRush profile

    EltexSoft Reviews & Testimonials

    • Yana Vlasova
      Yana Vlasova Review from Google
      5.0 ★

      Yana Vlasova's Review Sourced from Google

      Choose EltexSoft for perfection! LA's best-kept secret in software development. Our experience was top-notch—5 stars all the way!

    • Dasha Ozerchuk
      Dasha Ozerchuk Review from Google
      5.0 ★

      Dasha Ozerchuk's Review Sourced from Google

      EltexSoft is a software dream team! Their LA-based wizards turned our ideas into digital magic. 5 stars for excellence!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (3)

  • Mile Marker

    Strategic Software, Startup Speed

    Mile Marker is an agile development agency offering startups strategically designed custom software focused on solving your business problems. Mile Markers team includes product managers, developers, designers, QA, DevOps and more...

    Top Services:

    • Software Development
    • Mobile App Development
    • Software Testing
    • UI/UX Design
    • Staff Augmentation
    • Show more
    Location
    Madison, Wisconsin
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed

    Mile Marker Services

    • Software Development
    • Mobile App Development
    • Software Testing
    • UI/UX Design
    • Staff Augmentation
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • ToughClicks
    • Dayta
    • Rebate Bus
    Data sourced from the agency's DesignRush profile

    Mile Marker Reviews & Testimonials

    • Clay Burdelik
      Clay Burdelik Founder at ToughClicks
      5.0 ★

      Software Development Review from Clay Burdelik

      Mile Marker was fantastic to work with. They made a rock solid plan and executed in an agile manner ensuring our product was built to the requirements of our customers. Mile Marker's transparency and communication ensured we knew how the project was progressing and had opportunities to provide our input to help shape our product. Having the lived experience of being founders, Mile Marker's team guided us through decision making proessess and helped to find the right balance between feature sets, security, scalability, cost, and time. Mile Marker joined customer calls to provide a technical expertise to our sales process and helped ensure our platform's security was viewed positively by Fortune 500 IT teams. Mile Marker's highly skilled team helped expedite our business and was a key factor to our early success.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.3 4.3 (1)

  • Jahnel Group

    Do Great Things Personally and Professionally

    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...

    Top Services:

    • Software Development
    • Staff Augmentation
    • Cloud Consulting
    • Mobile App Development
    • DevOps Consulting
    • Show more
    Location
    Schenectady, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $125/hr
    Portfolios Count
    5 Projects Listed

    Jahnel Group Services

    • Software Development
    • Staff Augmentation
    • Cloud Consulting
    • Mobile App Development
    • DevOps Consulting
    • Web Development
    • Web Design
    • UI/UX Design
    • Software Testing
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Google
    • Bethesda
    • WB Discovery
    • Disney
    • GoDaddy
    • Death Wish Coffee
    • Peloton
    • Kelmar
    • ThermoFisher Scientific
    • MIT
    Data sourced from the agency's DesignRush profile

    Jahnel Group Reviews & Testimonials

    • Akshay Palekar
      Akshay Palekar Review from Google
      5.0 ★

      Akshay Palekar's Review Sourced from Google

      Had the privilege of working in this company for about 4 years, and it was the best experience. This was my first job after graduating and I could not have asked for a better set of people to work with. Darrin and Jason, and really the entire leadership team really leads by example and you really feel you are part of something special here.

    • Corri Bardin
      Corri Bardin Review from Google
      5.0 ★

      Corri Bardin's Review Sourced from Google

      It's always such a blast joining Jahnel for their holiday party. It's always the highlight of my holidays. They always go so above and beyond I love it. I cant wait to see what they have in store for future events! 😍

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (22)

  • Colchuck Consulting

    Your gateway to bespoke technology solutions that propel your business into the future.

    At Colchuck Consulting, our mission is to drive growth and innovation through tailored technology solutions. Founded by industry experts, our agency offers a unique blend of skills and knowledge, providing a boutique experience with cutting-edge technology and strategic support to maximize your ideas and...

    Top Services:

    • Software Development
    • Mobile App Development
    • Cloud Consulting
    • Web Development
    • UI/UX Design
    • Show more
    Location
    Burien, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    3 Projects Listed

    Colchuck Consulting Services

    • Software Development
    • Mobile App Development
    • Cloud Consulting
    • Web Development
    • UI/UX Design
    • Software Testing
    • IT Services
    • Cybersecurity
    • DevOps Consulting
    • IT Compliance Solution
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Boost Baseball
    • Roster Champs
    • Hope Gives
    • Pastor Stays
    • MAS Agency
    Data sourced from the agency's DesignRush profile

    Colchuck Consulting Reviews & Testimonials

    • Jimmy Portner
      Jimmy Portner Review from Google
      5.0 ★

      Jimmy Portner's Review Sourced from Google

      We had a fantastic experience working with this web design team! Not only are they incredibly skilled at what they do, but they were also a pleasure to collaborate with every step of the way. They brought in a talented graphic designer who helped us create a cohesive brand identity that was beautifully woven throughout the site. The entire team was thoughtful, responsive, and genuinely committed to bringing our vision to life. Highly recommend!

    • Chris Wegeleben
      Chris Wegeleben Review from Google
      5.0 ★

      Chris Wegeleben's Review Sourced from Google

      Colchuck Consulting has been a game-changer for my business! They are currently building a custom app for us, and the process has been seamless. Their team is highly skilled, communicative, and genuinely invested in understanding our needs. They’ve provided innovative solutions and delivered exceptional work at every step. I’m excited to see the final product and confident it will exceed expectations. If you’re looking for a reliable and professional team to bring your ideas to life, I highly recommend Colchuck Consulting!

    • AmberRae Brantley
      AmberRae Brantley Review from Google
      5.0 ★

      AmberRae Brantley's Review Sourced from Google

      I had the pleasure of working with Colchuck Consulting on my organization's website and their expertise and customer service exceeded all expectations. They assisted me from initial conception all the way through our website launch, with an eye for detail. They helped me take my ideas and transformed them into a well-designed, user-friendly website that not only looks fantastic but also functions seamlessly. Additionally, their ongoing support and willingness to make adjustments along the way have been invaluable. As an entrepreneur starting a new project, working with them has been so helpful. I wholeheartedly recommend Colchuck Consulting to anyone in need of top-notch web-design, or custom technology solutions.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (9)

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?

Software testing benefits

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:

  1. Define testing requirements
    Outline current software issues, testing goals and priorities, project scope, compliance requirements, budget, and timeline.
  2. 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.
  3. Conduct due diligence
    Assess the company’s certifications, vendor partnerships, awards and recognitions, and client reviews to confirm it’s trustworthy and credible.
  4. 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.
  5. Schedule a consultation
    Meet the team who’ll work on your project and request sample reports or pilot tests to further gauge project fit.
  6. 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

  1. How familiar are you with our industry-specific requirements? What deliverables can you provide to help us comply with the regulations?
  2. Can you share projects similar to our testing coverage, methodology, and criteria?
  3. What testing tools and frameworks do you use?

Services and Processes

  1. What is your software testing process — from discovery and planning to execution and reporting?
  2. How will you set up/manage test environments and test data?
  3. How do you balance manual vs automated testing? What are your criteria for automating tests?
  4. How do you handle access control, credentials, and confidentiality?

Relevant to Your Project

  1. What test types do you recommend for us, and why?
  2. What are your SLAs for triage, retesting, and regression after fixes?
  3. 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.

Why People Trust DesignRush

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.

DesignRush rating logos on Trustpilot and Google

Learn more about DesignRush Agency Ranking Methodology.

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.

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 
(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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