Best Chantilly Software Testing Agency Rankings

3 Companies - Rankings updated: April 04, 2026

DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.

United States × Virginia × Chantilly ×
  • Leading Software Testing Company in Vietnam

    Lotus Quality Assurance (LQA) is the first independent software testing company in Vietnam. We provide software testing and QA services for clients from over 10 countries at an average customer satisfaction score of 96%.  [... view Lotus Quality Assurance profile ]
    Location
    Chantilly, Virginia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed

    Lotus Quality Assurance Services

    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Audio Visual Navigation (AVN) Test Center
      Software Testing Project Audio Visual Navigation (AVN) Test Center
    • Healthcare Web App Testing
      Software Testing Project Healthcare Web App Testing
    • Real Estate Listing Platform Testing
      Software Testing Project Real Estate Listing Platform Testing
    • Insurance Apps Test Automation
      Software Testing Project Insurance Apps Test Automation
    • UAT for Dentist and Customer Management System
      Software Testing Project UAT for Dentist and Customer Management System
    • F&B Mobile and Web Apps Testing
      Software Testing Project F&B Mobile and Web Apps Testing
    Comprehensive analysis done by DesignRush Agency Experts.

    Lotus Quality Assurance Reviews & Testimonials

    • Huy Nguyen Quang
      Huy Nguyen Quang Review from Google
      5.0

      Huy Nguyen Quang's Review Sourced from Google

      Lotus Quality Assurance is very well. This's good experience for trying work and dedication. The working environment here is very nice. Welcome to LQA company. I'm has been working and waiting your come!

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Toshiba
    • Panasonic
    • INFINIQ
    • LG Electronics
    • SK Telecom
    • BaoViet Insurance
    • Golden Gate Vietnam
    • IOData
    • Incubit
    • SQC
    Data sourced from the agency's DesignRush profile
  • Quality-centric Vietnamese IT Outsourcing Company

    LTS Group is a reliable Vietnam IT outsourcing company with 7+ years of experience in software development, software testing, and digital BPO.  [... see all LTS Group reviews ]
    Location
    Chantilly, Virginia
    Number of Employees
    250 - 499
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed

    LTS Group Services

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • Software Testing
    • BPO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Healthcare Web App Testing
      Software Testing Project Healthcare Web App Testing
    • E-doctor Platform Test Automation
      Software Testing Project E-doctor Platform Test Automation
    • Car Audio Video Navigation System Testing
      Software Testing Project Car Audio Video Navigation System Testing
    • Education Platform Development
      App Development Project Education Platform Development
    • CRM System Development
      Software Development Project CRM System Development
    • Loyalty Platform Development
      Software Development Project Loyalty Platform Development
    Comprehensive analysis done by DesignRush Agency Experts.

    LTS Group Reviews & Testimonials

    • Andy Bui
      Andy Bui CTO at Advantages Digital Learning Solutions
      5.0
      Software Development Review from Andy Bui

      As a CTO, I work with LTS Group as our software development strategic partner. They offer complete software development services at superior level for system architecture design, deployment modeling, CICD support and quality assurance. I strongly recommend LTS Group to companies looking for software development, deployment and software quality services.

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    • Tatiana Yusupova
      Tatiana Yusupova Project Manager at Daedalean
      5.0
      Software Testing Review from Tatiana Yusupova

      I’m satisfied with Automation Testing service provided quickly and flexibly by experienced personnel of LTS. When working with them, I always get quick support from the staff. Whenever there is a problem to be answered, LTS responds very quickly. For us, LTS is a reliable and professional partner.

      Show more
    • Son Dang
      Son Dang Review from Google
      5.0

      Son Dang's Review Sourced from Google

      one of the best outsource company in VietNam. delivery in time, good coding convention, quality code

      Show more
    Reviews verified by DesignRush and sourced from the agency's profile
    • Qualcomm
    • LG
    • Infiniq
    • VNPT
    • Bao Viet Insurance
    • Toshiba
    • SK Telecom
    • Techcombank
    • Twitch
    • FPT Software
    Data sourced from the agency's DesignRush profile
  • Own The Solution

    BuzzClan is an AI-driven solutions provider delivering software, advisory, and implementation services for public and private sectors. With 500+ experts and 150+ digital transformation wins, we advance innovation through strong data engineering, cloud ops, and automation.  [... view BuzzClan profile ]
    Location
    Chantilly, Virginia
    Number of Employees
    250 - 499

    BuzzClan Services

    • AI Development
    • Big Data Analytics
    • IT Services
    • Cloud Consulting
    • DevOps Consulting
    • Managed Services
    • IT Compliance Solution
    • Software Development
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Fintech Company
    • Client in the Healthcare Industry
    • Technology Startup
    Data sourced from the agency's DesignRush profile

Frequently Asked Questions

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  

About The Author and Expert Reviewer

Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.

Former Development Director

Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.