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.

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  • Inspired by innovation.

    Navus is a dynamic and forward-thinking software development company committed to transforming ideas into powerful digital solutions. With a focus on cutting-edge technologies and a passion for innovation, we specialize in creating bespoke software tailored to meet the unique needs of our clients...

    Top Services:

    • Web Design
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Mobile App Development
    • Show more
    Location
    KlaipÄ—da, Lithuania
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Portfolios Count
    7 Projects Listed

    Navus Services

    • Web Design
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Mobile App Development
    • Software Development
    • UI/UX Design
    • Software Testing
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Zeelandia
    • BatĹł Kalnas
    • Ĺ˝emaitijos Pienas
    • Klaipeda Municipality Administration
    • Baltic Non-Woven
    • Litspringas
    • Baltic Filter
    • Thyssenkrupp Infrastructure
    Data sourced from the agency's DesignRush profile
  • Your trusted mobile and web development partner

    Breaking barriers in code crafting: Discover Droxic, Your Ultimate Software Companion!...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • Software Testing
    • DevOps Consulting
    • Show more
    Location
    Sofia, Bulgaria
    Number of Employees
    50 - 99
    Portfolios Count
    4 Projects Listed

    Droxic Services

    • Software Development
    • Web Development
    • Mobile App Development
    • Software Testing
    • DevOps Consulting
    • eCommerce Development
    • Cloud Consulting
    • IT Services
    • AI Development
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HMD Global
    • Gasag
    • OpenTalk
    • Heineken
    • MassUp
    • BMW
    • Fitogram
    • IAm Road Smart
    • Grohe
    • Siili
    Data sourced from the agency's DesignRush profile
  • The Digital Company

    With passion and innovative spirit, we advise and support companies and organizations in their very individual digital transformation. Alter Solutions Deutschland focuses on supporting its customers in the fields Cyber Security, Cloud & Infrastructure, Software Delivery, Business Performance and Agile IT...

    Top Services:

    • Software Development
    • Cybersecurity
    • Cloud Consulting
    • Big Data Analytics
    • Mobile App Development
    • Show more
    Location
    Dusseldorf, Germany
    Number of Employees
    50 - 99
    Portfolios Count
    5 Projects Listed

    Alter Solutions Deutschland GmbH Services

    • Software Development
    • Cybersecurity
    • Cloud Consulting
    • Big Data Analytics
    • Mobile App Development
    • Software Testing
    • Web Development
    • DevOps Consulting
    • IT Compliance Solution
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Automotive
    • Telecommunications
    • Financial Services
    • Transport & Logistics
    Data sourced from the agency's DesignRush profile

    Alter Solutions Deutschland GmbH Reviews & Testimonials

    • Naveen IK
      Naveen IK Review from Google
      5.0

      Naveen IK's Review Sourced from Google

      Hello,I am very thankful to Alter Solutions GmbH, Deutschland for giving me the chance to work in Germany and trusting me in my role. The supportive work environment and the company’s focus on growth have made this experience very rewarding. It’s a pleasure to work with such a great organization.Special thanks to HR: Fabian Düesmann, Operations: Laura Thiel, and CEO: Thomas Fass.

    • B2B - Erklärvideo
      B2B - Erklärvideo Review from Google
      5.0

      B2B - Erklärvideo's Review Sourced from Google

      We've had consistently positive experiences with Alter Solutions Germany. Questions and feedback were always answered reliably and comprehensively, and input was provided promptly. I definitely recommend All in One! The collaboration was successful and definitely a lot of fun. Thank you very much!

    • Birgit Brabeck
      Birgit Brabeck Review from Google
      5.0

      Birgit Brabeck's Review Sourced from Google

      Digitalization partner with high technological expertise. Flexible approach. Project completion in time. Holistic approach. Absolutely recommended.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Delivering digital transformation - from consultancy and engineering, to AI, ML, cloud and UX

    Delivering digital transformation - from consultancy and engineering, to AI, machine learning, cloud and UX...

    Top Services:

    • Software Development
    • AI Development
    • Big Data Analytics
    • Cloud Consulting
    • Software Testing
    • Show more
    Location
    Leeds, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Portfolios Count
    2 Projects Listed

    Audacia Services

    • Software Development
    • AI Development
    • Big Data Analytics
    • Cloud Consulting
    • Software Testing
    • Staff Augmentation
    • DevOps Consulting
    • Mobile App Development
    • IT Services
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • AESSEAL
    • Techbuyer
    • Steris
    • National Institute for Health Research
    • Story Homes
    • Bellway Homes
    • ecar (a Europcar company)
    • ADM
    • Engie
    • Northern Trains
    Data sourced from the agency's DesignRush profile

    Audacia Reviews & Testimonials

    • Teodora Atanasoaei
      Teodora Atanasoaei Review from Google
      2.0

      Teodora Atanasoaei's Review Sourced from Google

      I went to interview for a Delivery Manager role.Had 3 people interview me, one of which was dressed in sports outfit for the interview - I do not regard this as being professional.Second, the role advertised is not the same with the role itself. In the job description, the responsibilities were all related to Project Management, however when the interview started I was completely blindsided.They asked me to basically do the work of Sales, Product Owner, Design, Architecture and we spoke a little of Delivery as well.Only to be told later that because this is a consultancy, it's expected of you to do everything. The job does NOT pay for X5 roles with those responsibilities, but you are expected to do those tasks regardless.My advice - just write down all of these in the job advert, saves people time to decide whether it is suited for them or not.

    • Rass G
      Rass G Review from Google
      5.0

      Rass G's Review Sourced from Google

      Fantastic company to work for, great people with a lot of knowledge and experience. Always work to a high standard.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Reliable Crowdsourced Testing Partner

    Ubertesters is a crowdtesting company that allows organizations to outsource the power of the crowd for their own digital testing or QA needs by using remote global vetted testers with devices...

    Top Services:

    • Software Testing
    Location
    Ramsey, New Jersey
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    Under $1,000

    Ubertesters Services

    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • AppsFlyer
    • NetEase Games
    • Taboola
    • Akamai Technologies
    • Zalando
    • New York City Department
    • Miniclip
    • Bosch
    • Here Mobility
    • 888 Holdings
    Data sourced from the agency's DesignRush profile

    Ubertesters Reviews & Testimonials

    • Raji Maduwantha Fernando
      Raji Maduwantha Fernando Review from Google
      5.0

      Raji Maduwantha Fernando's Review Sourced from Google

      Ubertesters is excellent for testing.The platform is easy to use, so I can finish my testing tasks quickly. The team is always there to help and fix any challenges quickly. I'm happy to be part of such a professional community.

    • Chris
      Chris Review from Google
      5.0

      Chris's Review Sourced from Google

      Testing with Ubertesters is simple. The platform is user-friendly, and the team is supportive. They answer my questions quickly. I'd suggest Ubertesters to any tester who wants to get experience in testing and make extra money on the way.

    • Ulia Alias
      Ulia Alias Review from Google
      5.0

      Ulia Alias's Review Sourced from Google

      Ubertesters has been a game-changer for me in the freelance testing space. The project's diversity keeps things interesting, and what sets them apart is the genuine care they show for their testers, making it a fulfilling and enjoyable experience. I'm grateful to be part of this community.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your innovation partner for digitalization

    We are a Swedish/Bosnian award-winning agency specializing in IT outsourcing and end-to-end software development. With 85 experts on our team, we work with ventures and established companies to turn ideas into functional, high-quality products...

    Top Services:

    • Web Development
    • Mobile App Development
    • Software Development
    • IT Services
    • eCommerce Development
    • Show more
    Location
    Gothenburg, Sweden
    Number of Employees
    50 - 99
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $10,000 - $25,000

    ZenDev AB Services

    • Web Development
    • Mobile App Development
    • Software Development
    • IT Services
    • eCommerce Development
    • Staff Augmentation
    • DevOps Consulting
    • Software Testing
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Arvid Nilsson
    • Kalmar
    • Northerner
    • Aktarr
    • Meela Health
    • Zynka
    • Avidnote
    • Hidroxa
    • Magnetlabbet
    • GreenFee365
    Data sourced from the agency's DesignRush profile
  • Experts in everything mobile

    Apadmi designs, develops and optimises mobile apps for leading brands. We unlock new value through strategy, platforms, middleware and systems integrations that transform the way they work...

    Top Services:

    • Mobile App Development
    • UI/UX Design
    • Web Development
    • Software Testing
    • Blockchain
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $50,000 & Up

    Apadmi Services

    • Mobile App Development
    • UI/UX Design
    • Web Development
    • Software Testing
    • Blockchain
    • Software Development
    • CRM Consulting
    • Managed Services
    • IT Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Co-op
    • Domino's Pizza UK and Ireland
    • The Guardian
    • United Utilities
    • HSS
    • NHS
    • SailGP
    • Argos
    • Charles Stanley
    • BBC
    Data sourced from the agency's DesignRush profile

    Apadmi Reviews & Testimonials

    • Thomas Booth
      Thomas Booth Review from Google
      2.0

      Thomas Booth's Review Sourced from Google

      I recently had an experience back in 2022 with Apadmi that I feel compelled to share and have debated whether i should post this. As a professional eagerly looking forward to an interview with Apadmi, I was unfortunately met with a series of disappointments.Firstly, the structured process I was initially promised for the interview was not adhered to. This lack of organisation not only threw me off but also made it challenging to present myself effectively and forced to do a presentation in less than 24 hours notice.More concerning, however, was my interaction with the Managing Director, not sure if he is still there. I found his demeanour not just unprofessional but outright rude. This was disheartening, especially coming from a leadership figure in a reputable company. I've actually never been so humiliated in the professional environment.It's important for companies to remember that interviews are a two-way process. They are not just about evaluating candidates, but also about demonstrating the company's values and culture. Unfortunately, my experience with Apadmi fell short of the professional standards one would expect, however i would say Marcus, one of the board members was a delight in my first stage.I hope my feedback is taken constructively, as it is intended to highlight areas where there is significant room for improvement in how Apadmi manages its recruitment process and senior staff interactions.

    • Steve Jackson
      Steve Jackson Review from Google
      5.0

      Steve Jackson's Review Sourced from Google

      Fantastic team, you can rely on them always.. Robert a partner of Apadami is an exceptional individual who supported me with my project in a professional manner. With his excellent peoples skills he will look after you. The person you can rely on anything and keep you assured. Will always go back to Apadami.

    • Manoj Ranaweera
      Manoj Ranaweera Review from Google
      5.0

      Manoj Ranaweera's Review Sourced from Google

      Apadmi's ability to spin out technology as separate companies is remarkable. A strong supporter of Manchester tech ecosystem, they became unbeatable in mobile category during the first three years of northern tech awards before it adopted a new structure and ownership. Another remarkable achievement is that the four founders have remained together during all these years. I wish them all the best.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Supercharge - Innovating Digital Product Development

    At Supercharge, we partner with our clients to turn disruption into opportunity by creating transformative digital solutions. With over 200 digital experts across New York, London, Amsterdam, Helsinki, Vienna, and Budapest, we develop digital strategies, design delightful interfaces, and build robust software...

    Top Services:

    • Software Development
    • AI Development
    • Digital Services
    • Product Design
    • Mobile App Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    6 Projects Listed

    Supercharge Services

    • Software Development
    • AI Development
    • Digital Services
    • Product Design
    • Mobile App Development
    • Digital Strategy
    • IoT
    • UI/UX Design
    • Software Testing
    • Managed Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Britned
    • Eleclink
    • gateretail
    • OTP Bank
    • Kodak Alaris
    • Deutsche Telekom
    • Vodafone
    • Santander
    • VYRD
    • Cambridge Mobile Telematics
    Data sourced from the agency's DesignRush profile
  • Empowering business success with custom software solutions

    Lindner IT specializes in developing industry-specific software solutions that empower enterprises. Using technologies such as SolidJS, Svelte, VueJS, Astro, ASP.NET Core, and Rust with Actix, our experienced team excels at both frontend and backend web development. Using our knowledge of Microsoft Azure and...

    Top Services:

    • Web Design
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Software Development
    • Show more
    Location
    Igersheim, Germany
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed

    Lindner IT Services

    • Web Design
    • Mobile App Development
    • Web Development
    • UI/UX Design
    • Software Development
    • Software Testing
    • WordPress Website Design
    • SEO
    • Managed Services
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Enterprise businesses
    • Medium sized businesses
    • Small businesses
    Data sourced from the agency's DesignRush profile

    Lindner IT Reviews & Testimonials

    • Denise !
      Denise ! Review from Google
      5.0

      Denise !'s Review Sourced from Google

      I can only recommend Lindner IT to everyone.Robin Lindner always takes care of our various IT projects quickly and comprehensively. And if we ever had problems, he was usually able to fix them after a short time.Working together is fun and we don't regret our IT switch to Lindner IT in any way. On the contrary, we should have done this much earlier.Big thank you for the great support!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Trusted Salesforce® Summit Consulting Partner

    We specialize in Managed Services, Lightning Migration, Sales Cloud, Service Cloud, Marketing Cloud, Experience Cloud, and Einstein AI, delivering innovative solutions for businesses of all sizes from small, medium enterprises to Fortune 500 companies...

    Top Services:

    • Managed Services
    • CRM Consulting
    • Cloud Consulting
    • DevOps Consulting
    • Software Testing
    • Show more
    Location
    Sydney, Australia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000

    TechForce Services Services

    • Managed Services
    • CRM Consulting
    • Cloud Consulting
    • DevOps Consulting
    • Software Testing
    • Mobile App Development
    • Software Development
    • AI Development
    • IT Services
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Torrens (Laureate)
    • ModernStar
    • Centuria
    • INSW
    • ICMS
    Data sourced from the agency's DesignRush profile

    TechForce Services Reviews & Testimonials

    • Harendra Singh
      Harendra Singh Review from Google
      5.0

      Harendra Singh's Review Sourced from Google

      TechForce Services has been a fantastic partner in helping us optimize our Salesforce platform. Their team is highly responsive, knowledgeable, and always willing to go the extra mile to ensure our success. We've seen significant improvements in our sales processes and overall efficiency thanks to their expertise. We can't recommend them enough!

    • Sharmistha Rath
      Sharmistha Rath Review from Google
      5.0

      Sharmistha Rath's Review Sourced from Google

      I had the pleasure of working with TechForce Services on a Salesforce implementation project, and I must say, their outstanding work was truly impressive.From the outset, TechForce Services demonstrated their expertise, professionalism, and dedication to delivering quality results. They took the time to fully understand our business needs and provided a customized solution that not only met but exceeded our expectations.Throughout the project, the TechForce Services team was always available to answer any questions or concerns we had, providing timely updates and going above and beyond to ensure that the implementation was seamless. They also provided comprehensive training to our team, enabling us to use the new Salesforce platform with ease.Thanks to TechForce Services, our sales and marketing teams are now able to collaborate more efficiently, and we've been able to streamline our entire sales process. The implementation has helped us improve our productivity and had a positive impact on our bottom line.Overall, I highly recommend TechForce Services for any Salesforce implementation project. Their team is top-notch, and their commitment to customer satisfaction is exceptional. If you're looking for a reliable and experienced partner for your Salesforce needs, TechForce Services is the way to go.

    • Rakesh Bhujabal
      Rakesh Bhujabal Review from Google
      5.0

      Rakesh Bhujabal's Review Sourced from Google

      TechForce Services is highly recommended for their outstanding work on Salesforce implementation project for my Org. I must say, the team is very professional, knowledgeable, and dedicated to delivering exceptional results.Thanks to their expertise, we've streamlined our processes and improved productivity in our Edu business. If you're looking for a reliable Salesforce partner, TechForce Services is the way to go.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Solution Driven With Cutting Edge Technologies

    Code Ethics is a technology consulting and development firm dedicated to delivering high-quality, scalable, and reliable digital solutions. We specialize in helping businesses transform ideas into impactful products through a combination of strategic consulting, modern engineering, and ethical execution...

    Top Services:

    • Managed Services
    • IT Services
    • CRM Consulting
    • ERP Consulting
    • AI Development
    • Show more
    Location
    Hyderabad, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr

    Code Ethics Services

    • Managed Services
    • IT Services
    • CRM Consulting
    • ERP Consulting
    • AI Development
    • Mobile App Development
    • Software Development
    • Web Development
    • Software Testing
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • BBI Technologies
    • Citadel Information Services
    • PVCU
    • LTM
    Data sourced from the agency's DesignRush profile

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: 

  • Functional testing  
  • Performance testing  
  • Security testing  
  • Usability testing  
  • Regression testing   
  • Automation testing  
  • Accessibility testing    
  • Mobile app testing  
  • API testing  
  • Compatibility testing across devices/browsers  
  • Compliance testing  
  • Testing with artificial intelligence (AI) tools
  • QA audit 

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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