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

8 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.

HR × $25,000 - $50,000 ×
  • AdTech Engineering Teams & Staff Augmentation

    Geomotiv is an AdTech-focused technology company providing dedicated teams, IT staff augmentation, and custom development services for businesses building and scaling digital platforms...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • IoT
    • Software Testing
    • Show more
    Location
    Alexandria, Virginia
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    11 Projects Listed

    Geomotiv Services

    • Software Development
    • Web Development
    • Mobile App Development
    • IoT
    • Software Testing
    • AI Development
    • eCommerce Development
    • Staff Augmentation
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Rubicon Project
    • MediaMath
    • Savveo
    • PebblePost
    • Hiro
    • MedWhat
    • Travelling Spoon
    • Trusted Insight
    • Bright Bright Great
    • Sante
    Data sourced from the agency's DesignRush profile

    Geomotiv Reviews & Testimonials

    • Cathrine Lehto
      Cathrine Lehto PMO at Experis
      5.0

      Software Development Review from Cathrine Lehto

      Geomotivs team is highly skilled and reliable, delivering customized software solutions tailored to our unique business needs. Their transparent communication and agile development process have been exceptional. Working with Geomotiv has been a positive experience. They consistently deliver high-quality results and adapt to changing requirements with ease. Their expertise and commitment to client success make them a valuable partner for software development projects.

    • Christopher Rautenberg
      Christopher Rautenberg Co Founder at Metrofibre
      5.0

      Software Development Review from Christopher Rautenberg

      Working with GEOMOTIV has been a fantastic experience. There staff fully understand all aspect of software development offering solution that are scalable and personalized to our specific requirement.

    • Sean Hsieh
      Sean Hsieh Founder & CEO at Concreit
      5.0

      HR Tech Solution Review from Sean Hsieh

      Implementing Geomotiv's auction platform has transformed our Sales operations. The customizable auctions and secure transactions have streamlined our sales process, resulting in increased efficiency and customer satisfaction

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • SEEDIUM builds & scales web/mobile products globally: full-cycle development & team augmentation

    Seedium provides full-cycle development and team augmentation services for startups and SMBs around the world. We focus on progressive mobile & web application development, marketplaces, serverless and microservices solutions, high-load projects, and SaaS platforms...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Web Design
    • Staff Augmentation
    • Show more
    Location
    Tallinn, Estonia
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed

    Seedium Services

    • Software Development
    • Mobile App Development
    • AI Development
    • Web Design
    • Staff Augmentation
    • Software Testing
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HerHeadquoter
    • Bunch
    • Smarter Contact
    • Welcome Renovation
    • Solo
    • Sport Stars
    Data sourced from the agency's DesignRush profile

    Seedium Reviews & Testimonials

    • Volodymyr Andrushenko
      Volodymyr Andrushenko CRO at Genius Software
      5.0

      Web Development Review from Volodymyr Andrushenko

      Collaborated with Seedium on developing a B2B SaaS platform. The team was very professional and delivered the project on time. They were quick to understand our needs and provide a perfect solution. We would highly recommend Seedium as a reliable software development partner.

    • Iryna Seleman
      Iryna Seleman Engagement Manager at Cortance
      5.0

      Web Development Review from Iryna Seleman

      Seedium didnt just complete the tasks, they genuinely cared about the success of our project. They proposed valuable solutions and improvements that made the original idea even stronger. The work was consistently high-quality, and every feature was delivered to our expectations and standards. We could rely on Seedium completely without micromanaging, as they took full ownership of their responsibilities.

    • Khrystyna Sliana
      Khrystyna Sliana Digital marketing manager at Red Jumpers
      5.0

      Web Development Review from Khrystyna Sliana

      The Seedium team always found the best solutions to our requests and was flexible in their work. They were a perfect fit for our requirements. Working with them, we were confident in delivery and quality. We will definitely keep working with them on our next projects.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • End-To-End Product Development | Agile Development Teams

    Qarbon IT are experts in creating web and mobile applications with over 15 years of experience. We have the experience, knowledge and technical know-how to deliver an innovative digital product that will exceed your expectations. Qarbon IT assists businesses across major industries, such as finance, banking...

    Top Services:

    • Software Development
    • Mobile App Development
    • UI/UX Design
    • eCommerce Development
    • IoT
    • Show more
    Location
    Katowice, Poland
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    27 Projects Listed

    Qarbon IT Services

    • Software Development
    • Mobile App Development
    • UI/UX Design
    • eCommerce Development
    • IoT
    • AI Development
    • Blockchain
    • Software Testing
    • Staff Augmentation
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Takamol Holding
    • Cryptospace
    • Golem Network
    • Elvia entertainment ltd
    • Clubspeed
    • Holiday park & resort
    • Komputronik Group
    • Mann + Hummel
    • Bay Shore High School Alumni Association
    • aeternity
    Data sourced from the agency's DesignRush profile

    Qarbon IT Reviews & Testimonials

    • Jonasz Wieclawski
      Jonasz Wieclawski Review from Google
      5.0

      Jonasz Wieclawski's Review Sourced from Google

      The best IT team in Poland I've ever worked with. They solve problems and find solutions to challenges that most people would throw up their hands in disbelief. In my opinion, this is a testament to the caliber and quality of the developers who, to a greater or lesser extent, shape our business's success.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-enabled .NET product engineering partner

    Blackthorn Vision is a Microsoft-partnered .NET and AI development company.As a Microsoft Solutions Partner,we help enterprise teams build and modernize complex software products. The solutions we deliver are backed by deep .NET expertise,AI versatility,and a track record of delivering results...

    Top Services:

    • Software Development
    • Software Testing
    • AI Development
    • Mobile App Development
    • UI/UX Design
    • Show more
    Location
    Wroclaw, Poland
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    9 Projects Listed

    Blackthorn Vision Services

    • Software Development
    • Software Testing
    • AI Development
    • Mobile App Development
    • UI/UX Design
    • IT Services
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Sensia Global
    • Selux Diagnostics
    • ANC Sport Enterprises
    • unTill
    • Scappman
    • RemiPeople
    • Calxa
    • unSkript
    Data sourced from the agency's DesignRush profile
  • Transforming Your Products Tech Foundation: Scaling, Maintainability, and Seamless Usability

    Rolique is a comprehensive software development firm, distinguished by an extensive portfolio encompassing more than 110 triumphant endeavors across the domains of healthcare, fintech, and industrial technology sectors...

    Top Services:

    • Web Development
    • UI/UX Design
    • Mobile App Development
    • AI Development
    • Software Development
    • Show more
    Location
    Lviv, Ukraine
    Number of Employees
    50 - 99
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    9 Projects Listed

    Rolique Services

    • Web Development
    • UI/UX Design
    • Mobile App Development
    • AI Development
    • Software Development
    • Software Testing
    • DevOps Consulting
    • Cybersecurity
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Avail
    • Holberg EEG
    • Protez HUb
    • Lendio
    • Intermate
    • Workerbase
    • Center Point
    • 4for4
    • Schleuniger
    • Plann
    Data sourced from the agency's DesignRush profile
  • Web & Mobile Application and Software Dev

    Your Expert Web & Mobile Development Partner . Take advantage of our 13+ years of experience in building and launching web and mobile custom software solutions. Extend your team with the top web & mobile developers for your short-term and long-term projects, from MVPs to a completed solution...

    Top Services:

    • Software Development
    • Mobile App Development
    • Software Testing
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Alexandria, Egypt
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000

    Enozom Software Services

    • Software Development
    • Mobile App Development
    • Software Testing
    • Web Design
    • UI/UX Design
    • Web Development
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Empolis GmbH
    • Add Energy
    • ABL Group
    • Host and Stay
    • PassMeFast
    • Matelso
    • Life Connect
    • Hawsabah
    • Harris
    • Agile Consent
    Data sourced from the agency's DesignRush profile
  • Virtual Technology Office - An extended execution arm of a CTO.

    Facing challenges to scale up tech? Have a biz/tech requirement but no bandwidth to execute? Too many tech projects eating up your time to focus on core business? Connect with us. We provide fractional CTO services in build-operate-transfer models...

    Top Services:

    • IoT
    • Software Testing
    • AI Development
    • Blockchain
    • Mobile App Development
    • Show more
    Location
    Bengaluru, India
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    5 Projects Listed

    OpenTurf Technologies Services

    • IoT
    • Software Testing
    • AI Development
    • Blockchain
    • Mobile App Development
    • Software Development
    • VR/AR
    • Staff Augmentation
    • Managed Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Zeta
    • Terrapay
    • DishSling
    • Dubai Islamic Bank
    • YouCloud
    • Factoreal
    • YABX
    • Burpple
    • Comviva
    • Lifedata.ai
    Data sourced from the agency's DesignRush profile
  • 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

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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