Explore leading software testing companies that launch high-performing products, detect bugs early, improve stability, and ensure every feature works correctly across devices and environments. For teams focused on the US market, we also highlight trusted partners with region-specific expertise, including top US-based software testing companies.

Best Software Testing Firms

11 Companies-Rankings updated: September 03, 2026

Every agency on DesignRush has been evaluated for its expertise and client feedback to empower informed choices. Some listings include paid partnerships.

Higher Education × $1,000 - $10,000 ×
  • First-class Automation Testing Services

    100% focused on Test Automation to deliver frameworks and solutions that reduce costs & increase efficiency to get better digital products, faster...

    Top Services:

    • Software Testing
    Location
    Krakow, Poland
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed

    Zappletech Services

    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Trivago
    • Couchsurfing International
    • Tele2
    • Activated Insights
    • Zycus Inc
    • Missguided
    • iDeals
    • Maytech
    • BookingLive
    • Blue Zinc
    Data sourced from the agency's DesignRush profile

    Zappletech Reviews & Testimonials

    • Borg Energy India
      Borg Energy India Manager at South Florida IT Company
      5.0

      Software Testing Review from Borg Energy India

      Zappletech's automated testing services for my dating platform were exceptional. Their team was professional, responsive, and helpful. They quickly identified vulnerabilities and provided comprehensive reports with actionable recommendations. Zappletech made a significant positive impact on my platform's security. Highly recommended!

    • Derek Shaw
      Derek Shaw CEO at Derek Shaw Labs
      5.0

      Software Testing Review from Derek Shaw

      I worked with Zappletech's QA testing team for an educational platform, and their services exceeded expectations. They conducted thorough quality testing, identifying areas for improvement. Their attention to detail ensured a user-friendly and robust platform. Thanks to their efforts, the project gained a substantial user base, attracted by its seamless performance. Zappletech's professionalism and expertise played a crucial role in the platform's success.

    • Joeri Leeuwerik
      Joeri Leeuwerik Sales Photographer at Brandist NYC
      5.0

      Software Testing Review from Joeri Leeuwerik

      Zappletech tested a psychological counseling project with exceptional quality. Their thorough testing methods and techniques led to improvements that enhanced the project's popularity. The dedicated team of three professionals identified defects, provided recommendations, and ensured comprehensive functionality testing. Zappletech's skilled and committed professionals make them a recommended choice for high-quality QA testing services.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Design & Development Agency

    Faster Than Light is an AI-driven custom software development company...

    Top Services:

    • Design Services
    • Product Design
    • Web Design
    • Web Development
    • Software Testing
    • Show more
    Location
    Kyiv, Ukraine
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    15 Projects Listed

    Faster Than Light Services

    • Design Services
    • Product Design
    • Web Design
    • Web Development
    • Software Testing
    • Mobile App Development
    • Software Development
    • DevOps Consulting
    • eCommerce Development
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • TUF
    • TravelStride
    • Herokey
    • Kruze Consulting
    • Equity X
    Data sourced from the agency's DesignRush profile

    Faster Than Light Reviews & Testimonials

    • Cristian Zaharia
      Cristian Zaharia Finance Director at UiPath
      5.0

      Mobile App Development Review from Cristian Zaharia

      Faster Than Light is a phenomenal development partner. They took the time to truly understand our high-level strategic goals and executed the development flawlessly. Their responsiveness and adherence to timelines were remarkable, making the entire process stress-free. The quality of the final deliverable speaks for itself, and they managed to deliver maximum value within a highly competitive cost structure. They are professional, agile, and transparent. I would absolutely work with them again and highly recommend their services.

    • Bogdan Savchuk
      Bogdan Savchuk CBDO at Findigo
      5.0

      Software Development Review from Bogdan Savchuk

      We reached out to Faster Than Light to help build an agritech web solution for harvest management for one of our long-term customers, who launched their new agriculture project. They had to design and build the platform from scratch, ensuring it would handle high loads of data effectively. During the project, I really liked their attention to details and care about the product. As soon as they understood the business needs, they went deep into research to make sure the final product would meet them.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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
  • We help startups to start up!

    The one-stop shop for early-stage digital startups to get their products built! Get started with our product-as-a Service model today, save on hiring costs, and let us become your second brain...

    Top Services:

    • Digital Services
    • Product Design
    • Software Development
    • UI/UX Design
    • Web Development
    • Show more
    Location
    Fahrwangen, Switzerland
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed

    Pyango Services

    • Digital Services
    • Product Design
    • Software Development
    • UI/UX Design
    • Web Development
    • Mobile App Development
    • Web Design
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Kanbii Solutions AG
    • Sunrise UPC
    • RepRisk AG
    • InterSpitzen AG
    • Zurich University of Applied Sciences
    • Unic AG
    • Byteful GmbH
    • Creaitor AG
    • Donate My Way
    Data sourced from the agency's DesignRush profile

    Pyango Reviews & Testimonials

    • julia devecchi
      julia devecchi Review from Google
      5.0

      julia devecchi's Review Sourced from Google

      We partnered with Pyango for the tech needs of our business. They managed everything for us from an initial sketch of a website to a fully functioning site with a beautiful front-end and an easily customisable back-end. The communication was easy and they were always quick to respond. I can recommend working with Colin who also has a great understanding for explaining techy things to a business person.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Secure Your Enterprise Future

    Intrix Cyber Security is a specialist Australian consultancy providing high-end offensive security and strategic advisory services. As an approved supplier on the BuyICT and Buy NSW government panels, we provide advanced penetration testing, Essential Eight maturity uplift, and 24/7 incident response. We...

    Top Services:

    • Cybersecurity
    • IT Compliance Solution
    • Software Testing
    • IT Services
    • Managed Services
    • Show more
    Location
    Sydney, Australia
    Number of Employees
    Under 49
    Average Hourly Rate
    $250/hr
    Minimal Budget
    $1,000 - $10,000

    Intrix Cyber Security Services

    • Cybersecurity
    • IT Compliance Solution
    • Software Testing
    • IT Services
    • Managed Services
    • Cloud Consulting
    • DevOps Consulting
    • AI Development
    • Business Consulting
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Public Sector Network
    • NSW Department of Industries
    • ALDI
    • Australian Investment Counsil
    • Toyo Towers
    • MyBudget
    • Charholic Schools NSW
    • NSW Customer Service
    • BATES SMART
    • North Sydney Counsil
    Data sourced from the agency's DesignRush profile

    Intrix Cyber Security Reviews & Testimonials

    • fumin lu
      fumin lu Review from Google
      5.0

      fumin lu's Review Sourced from Google

      Our experience with Intrix Cyber Security was nothing short of phenomenal. From the moment we engaged their services for a penetration testing, we knew we were in safe hands.What impressed us the most was their rapid response to our inquiries—always there when we needed them. Working with Intrix was a pleasure, and we highly recommend them as a top-notch cybersecurity partner.A heartfelt thank you to the entire team at Intrix for going above and beyond in safeguarding our digital assets!

    • Practice Profiles
      Practice Profiles Review from Google
      5.0

      Practice Profiles's Review Sourced from Google

      To comply with ever increasing corporate-client demands, we recently worked with Ibrahim and the team at Intrix Cyber Security to conduct a security audit of our system and to pass Pen Testing of our key applications. From start to finish, their team demonstrated exceptional customer service. They were very professional, knowledgeable and easy to work with.They conducted an in-depth analysis of our applications to identify potential vulnerabilities and provided us with a detailed report of their findings as well as actionable recommendations on how best to address them. They were always available to answer our questions and worked with us through the remediation process.We highly recommend Intrix to anyone in need of such services. Their expertise and customer service were exceptional, and after all the “inconvenient” (and by that I mean pain-in-the-arse) hard work, they helped us improve our security narrative and certification to the level where we are now able to tout such credentials as a competitive advantage in our space.

    • Fayez Moussa
      Fayez Moussa Review from Google
      5.0

      Fayez Moussa's Review Sourced from Google

      I cannot recommend Intrix enough! As a member of the board at a local school, we recently hired them to conduct a comprehensive security audit, and the results were nothing short of exceptional. Their team was incredibly knowledgeable, professional, and efficient in identifying potential vulnerabilities in our systems and providing actionable recommendations to address them. They took the time to explain their findings and recommendations in a way that was easy for us to understand, which was greatly appreciated.The team at Intrix truly went above and beyond to ensure the security and privacy of our students, staff, and faculty. Their attention to detail, expertise, and commitment to our organization's security needs were second to none. We are so grateful for their partnership and would highly recommend them to anyone in need of top-notch cyber security consulting services. Thank you again for everything, Intrix!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Nearshore Software Development

    At Develop Hard we help US-based fast growing tech startups, SMBs, and Digital agencies building intelligent apps...

    Top Services:

    • Web Design
    • Web Development
    • UI/UX Design
    • eCommerce Development
    • Software Development
    • Show more
    Location
    Albuquerque, New Mexico
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Develop Hard LLC Services

    • Web Design
    • Web Development
    • UI/UX Design
    • eCommerce Development
    • Software Development
    • Staff Augmentation
    • Software Testing
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • TTS
    • Trylon
    • Logiteck
    • Rosario National University
    Data sourced from the agency's DesignRush profile
  • Digitally empower businesses to thrive online

    We are a team of enthusiastic individuals specialised in developing small to medium size web applications. Most of our experience is with data entry front ends with reports and statistics section, but also web mapping/GIS projects.Provide us with the details, and we'll discover the optimal solutions for...

    Top Services:

    • Software Development
    • Web Development
    • eCommerce Development
    • IT Services
    • DevOps Consulting
    • Show more
    Location
    Iași, Romania
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    newroco Services

    • Software Development
    • Web Development
    • eCommerce Development
    • IT Services
    • DevOps Consulting
    • Cloud Consulting
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Oxford Archaeology
    • Cotsworld Archaeology
    • CP1 Associates Limited
    • Calmnest LLC
    Data sourced from the agency's DesignRush profile

    newroco Reviews & Testimonials

    • Adina Gateste Acasa
      Adina Gateste Acasa Review from Google
      5.0

      Adina Gateste Acasa's Review Sourced from Google

      Excellent service and I'm highly appreciative of Lucian and his amazing team. I needed a great website and they got the job done in record time and no delays.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Innovating today to shape the success of tomorrow.

    We transform visionary ideas into innovative, future-ready solutions that drive sustainable growth and long-term success. z3x is a strategic partner for businesses seeking innovation, and sustainable growth...

    Top Services:

    • Digital Strategy
    • Business Consulting
    • Software Development
    • Market Research
    • Staff Augmentation
    • Show more
    Location
    Gdansk, Poland
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000

    z3x Tech Care Group Services

    • Digital Strategy
    • Business Consulting
    • Software Development
    • Market Research
    • Staff Augmentation
    • Software Testing
    • Mobile App Development
    • eCommerce Development
    • WordPress Website Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • EasySend
    • Mpay
    • Toro Invest
    • Fundacja Szkolna
    • Edu Wallet
    Data sourced from the agency's DesignRush profile
  • Efficient and scalable custom applications. Reduce your costs with our development team.

    At Innovare Software SRL, we prioritize a serious approach to software development. With a steadfast commitment to innovation and excellence, we strive to deliver cutting-edge solutions that meet the evolving needs of our clients. Our dedication to quality ensures that every project is handled with the utmost...

    Top Services:

    • Software Development
    • Mobile App Development
    • VR/AR
    • AI Development
    • Software Testing
    • Show more
    Location
    Reconquista, Argentina
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000

    Innovare Software SRL Services

    • Software Development
    • Mobile App Development
    • VR/AR
    • AI Development
    • Software Testing
    • Staff Augmentation
    • IT Services
    • Business Consulting
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Soluciones Integrales SA
    • Godoy Poviña SA
    • PlusPagos
    • Universidad Tecnológica Nacional
    • Panam Viajes CL
    • Flecha Estudiantil
    • Astros Turismo
    Data sourced from the agency's DesignRush profile
  • Your digital success is our top priority.

    Evitras Technologies is a reliable, leading provider of personalized web-based solutions, including turnkey website and mobile app development. Their experienced team of developers delivers top-quality results that enhance businesses' digital presence...

    Top Services:

    • UI/UX Design
    • Web Development
    • Web Design
    • eCommerce Development
    • Software Development
    • Show more
    Location
    Thrissur, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Evitras Services

    • UI/UX Design
    • Web Development
    • Web Design
    • eCommerce Development
    • Software Development
    • Mobile App Development
    • Direct Marketing
    • Branding
    • Logo Design
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Small Business Industry
    • Automotive Industry
    • Marketing Industry
    Data sourced from the agency's DesignRush profile

    Evitras Reviews & Testimonials

    • Shiva Kumar Angirga
      Shiva Kumar Angirga Review from Google
      5.0

      Shiva Kumar Angirga's Review Sourced from Google

      Evitras is our technical partner in a project and we have been working closely with Evitras since more than a year. They have great pateince to go through the project and strive their best to deliver the expectations. When we started with them, it was just a bet that this would work. Now looking back, we can say whole heartedly, Evitras is the best we can get on our project. In a year long journey, especially during covid, the way they handled project is impressive. Nikhil, the point of contact for our project, displayed great characteristics of project progress and we would love to work with them again.Ps: This isn't a promotional write up for them, but the Goodwill they have earned. All the best Evitras and whole team.

    • Sreejith P
      Sreejith P Review from Google
      5.0

      Sreejith P's Review Sourced from Google

      Great team with innovative ideas. Satisfied with my website and mobile app development. Deadline was met with quality work. Highly appreciated.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Creating unique identity in Digital Space

    Atoms Digital Solutions is a leading digital marketing agency and software development company based in Andhra Pradesh, India. We specialize in healthcare digital marketing for hospitals, doctors, clinics, and allied services. Our team also builds scalable websites and custom CRM tools that streamline...

    Top Services:

    • Digital Marketing
    • Social Media Marketing
    • Content Marketing
    • Video Marketing
    • PPC
    • Show more
    Location
    Guntur, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000

    Atoms Digital Solutions Services

    • Digital Marketing
    • Social Media Marketing
    • Content Marketing
    • Video Marketing
    • PPC
    • Web Development
    • eCommerce Development
    • Software Development
    • Mobile App Development
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Hyma Speciality Clinics
    • Komali Fertility Centre
    • Udayananda Cancer Hospitals
    • Divya Rheumatology Centre
    • Dr. Thejaswini Puridi Palla
    Data sourced from the agency's DesignRush profile

    Atoms Digital Solutions Reviews & Testimonials

    • wayctniha
      wayctniha Review from Google
      5.0

      wayctniha's Review Sourced from Google

      As a B.Tech student, I was looking for an internship where I could actually learn something beyond the classroom. Joining the best digital marketing company in Guntur turned out to be one of the best decisions I made.Unlike a regular internship, I got the chance to work on real-world projects and build AI tools that solve practical business problems. That experience really increased my interest in AI, automation, and digital marketing. Seeing how these technologies are used in real projects gave me a completely different perspective.The team was friendly, supportive, and always ready to guide me whenever I had questions. I learned new skills, gained confidence, and understood how a professional work environment actually functions.If you're a student searching for the best digital marketing company in Guntur for an internship or anyone looking for reliable digital marketing services, I would definitely recommend this place. The practical exposure, learning experience, and supportive environment make it stand out.

    • Parimala Parimala
      Parimala Parimala Review from Google
      5.0

      Parimala Parimala's Review Sourced from Google

      I had an amazing internship experience at Atoms Digital Solutions. During my internship, I worked on real-world AI automation projects like an HR Letter Dispatch System, Poster Analysis Agent, and a Video Caption Generator. The team was incredibly supportive, and I gained hands-on experience with AI, automation, digital marketing, content creation, and teamwork.The mentors encouraged learning through practical projects, gave valuable feedback, and created a positive environment where every intern could grow professionally. This internship significantly improved my technical skills, communication, and confidence.I also got the opportunity to understand how healthcare marketing works and why Atoms Digital Solutions is considered one of the best digital marketing companies for doctors. Their expertise in doctor branding, healthcare marketing, SEO, Google Ads, and social media marketing truly stands out.If you're looking for an internship with real learning opportunities or you're a healthcare professional searching for the best digital marketing company for doctors, I highly recommend Atoms Digital Solutions. Thank you to the entire team for an unforgettable learning journey! 🚀

    • Yampati Dinesh
      Yampati Dinesh Review from Google
      5.0

      Yampati Dinesh's Review Sourced from Google

      I’m working as a Videographer at Atoms Digital Solutions, and it has been a great experience. The company provides a creative and professional work environment where video marketing, doctor branding, and content creation are given high importance. I get hands-on experience with professional video shoots, healthcare marketing videos, and social media content that directly helps clients improve their online visibility and patient reach.The team is supportive, workflows are well-structured, and there’s a strong focus on quality, innovation, and results. Atoms Digital Solutions is truly one of the best digital marketing companies in Guntur and Andhra Pradesh, especially for healthcare professionals and businesses looking for impactful digital growth.⭐⭐⭐⭐⭐

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

Frequently Asked Questions About Software Testing Companies

What services do software testing firms provide?

Software testing companies provide different testing services to identify errors, security risks, performance issues, and how the software behaves in real-life situations and across devices. As part of their software testing service, they also check if each feature works as expected, fix bugs, make improvements, and make sure new software development updates don’t break existing functions, so the software quality remains stable. 

Core services include: 

How much do software testing services cost?

Hourly rates for QA testing range from $25 to $200+. The final cost is determined based on the size of the software or application, its complexity, required testing type, tech stack (custom-built and older legacy systems cost more), and niche.  

The rate will also depend on the seniority of the software tester. Across the United States, junior quality assurance (QA) tester may charge $70 to $110 per hour, while the rate for a senior QA mentor and automation engineer can range from $130 to $200 per hour.   

Special software testing services such as QA audit goes from $5,000 to $25,000

How can businesses know what type of software testing do they need?

Businesses can determine what type of testing solutions they need based on the potential impact of failures and the likelihood of defects. Namely, if they encounter:  

  • Core functionality issues: Use functional testing to verify features work as expected 
  • Unstable code or new features: Use unit testing for individual components and integration testing for modules working together 
  • Poor system stability after updates: Seek regression testing to make sure new changes didn't break existing features 
  • Performance and load issues: Use performance and load testing to evaluate speed and scalability 
  • Security issues: Security and penetration testing are commonly used across apps handling sensitive user data 
  • Hard-to-navigate user experience (UX): Pursue usability testing to determine how intuitive the application is for end users 
  • Low compatibility across devices: Compatibility testing can evaluate how good the app works on different browsers, devices, and OS versions 

There is also the option to choose between manual and automated testing.  

Is automated testing more expensive than manual testing?

As an investment, automated testing is pricier than manual testing but offers a lower cost-per-test over time as it can run the same scripts repeatedly, without human intervention. Conversely, manual testing entails lower upfront fee, but its cost grows linearly as the project grows, as every test cycle requires paid hours from QA testers.  

So, for short-term projects or ones with shifting requirements, manual testing is considered a more economical option, whereas for maintenance and regression cycles, automated testing grants better return on investment. 

The main distinction between these methodologies is that manual testing relies on human observation and interaction to identify defects, whereas automated testing uses software scripts to compare outcomes against predicted results.  

Manual testing is best suited for exploratory testing, usability assessments, ad-hoc bug hunting, and minor hotfix verifications where script development would be inefficient. Automated testing, on the other hand, is primarily used for regression testing to make sure the new code does not break existing features. 

How do businesses measure the effectiveness of software testing?

The effectiveness of the software testing is measured via: 

  • Code coverage: The percentage of the code that has been tested 
  • Defect density: The number of defects found per unit of code 
  • Test case effectiveness: The percentage of test cases that identify defects; helps prune redundant and ineffective tests 
  • Time to detect and fix defects: The time it takes to identify and fix software defects and software bugs 
  • Defect leakage: The number of bugs that "escaped" to production versus those caught during the testing phase  

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