Best Reston Software Testing Agency Rankings

3 Companies - Rankings updated: April 04, 2026

Each agency listed on DesignRush is assessed for industry expertise and customer testimonials are evaluated in order to provide you with a vetted selection. Certain listings represent paid partnerships.

United States × Virginia × Reston ×
  • Better Software Through Better Testing and More

    XBOSoft, founded in 2006, is a premier software testing and quality assurance (QA) service provider, consistently delivering exceptional results for small to mid-size businesses. We offer a comprehensive range of QA consulting and software testing services.  [... see all XBOSoft reviews ]
    Location
    Reston, Virginia
    Number of Employees
    50 - 99
    Average Hourly Rate
    $48/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed

    XBOSoft Services

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

    Clients and Projects

    View Full Portfolio
    • Mobile Test Automation
      Software Testing Project Mobile Test Automation
    • Systems Integration Testing
      Software Testing Project Systems Integration Testing
    • Embedded SW Testing
      Software Testing Project Embedded SW Testing
    Comprehensive analysis done by DesignRush Agency Experts.

    XBOSoft Reviews & Testimonials

    • Jessica Bernstein
      Jessica Bernstein CEO at Universally Found
      5.0
      Software Testing Review from Jessica Bernstein

      From the very beginning of our collaboration, XBOSoft has consistently exceeded our expectations. Their team of experts demonstrates not only profound knowledge in software testing but also an incredible ability to adapt to their client's specific needs. The teams proactive communication and responsiveness make working with them seamless and enjoyable.The culture at XBOSoft fosters a sense of true partnership. Their passion for excellence is evident in every interaction.Our experience with XBOSoft has been nothing short of outstanding. We highly recommend them to any business seeking top-notch software testing services. Their professionalism, expertise, and genuine dedication to client success are what make them a 5-star company in our book!

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    • bin liu
      bin liu Review from Google
      5.0

      bin liu's Review Sourced from Google

      I recently had a great experience with xbosoft. I was in need of software quality assurance service, and they were able to provide me with exactly what I needed. The customer service was excellent, and the work is of high quality. I would highly recommend xbosoft to anyone looking for QA service

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    • Yufang Pan
      Yufang Pan Review from Google
      5.0

      Yufang Pan's Review Sourced from Google

      I've been with xbosoft for 17 years and I've enjoyed every minute of it. The company culture is fantastic, the management is supportive, and the work is meaningful. I'm proud to be a part of the team.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Backline
    • MaxtriCare
    • Mobile Medsoft
    • Mitel
    • Marine Cybernetics
    • Sago Mini
    Data sourced from the agency's DesignRush profile
  • Turning Your Great Ideas into Successful Web Solutions

    XB Software is a full-cycle development company which have the experience and the expertise to build custom web and mobile solutions. We have a strong and dedicated team of IT professionals engaged in IT consulting, web & mobile app development, business analysis, UX/UI design and QA.Quick facts:17+ years  [... view XB Software profile ]
    Location
    Reston, Virginia
    Number of Employees
    100 - 249
    Average Hourly Rate
    $37/hr
    Portfolios Count
    13 Projects Listed

    XB Software Services

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

    Clients and Projects

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    • Custom Project Management Gantt Chart Software for Renewable Energy Projects
      Software Development Project for Energy & Mining Company Custom Project Management Gantt Chart Software for Renewable Energy Projects
    • Examarius IT Training & Certification System
      Software Development Project for Software & IT Services Company Examarius IT Training & Certification System
    • School Schedule Maker App
      Software Development Project for Education Company School Schedule Maker App
    • GPS Fleet Management and Truck Booking System
      Software Development Project GPS Fleet Management and Truck Booking System
    • Online Marketplace for Cars and Spare Parts Selling
      Software Development Project Online Marketplace for Cars and Spare Parts Selling
    • Car Service Scheduling and Warehouse Management System
      Software Development Project Car Service Scheduling and Warehouse Management System
    Comprehensive analysis done by DesignRush Agency Experts.

    XB Software Reviews & Testimonials

    • Olga Medvedskaya
      Olga Medvedskaya Review from Google
      5.0

      Olga Medvedskaya's Review Sourced from Google

      It's an incredibly pleasant and friendly place. The team is always willing to help and demonstrates a tremendous commitment to every project. This undoubtedly speaks volumes about the professionalism of this company.

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    • Fresh Media
      Fresh Media Review from Google
      5.0

      Fresh Media's Review Sourced from Google

      Super responsive team and excelent project management of app development. We're thrilled with what we got, and I’d definitely recommend them to anyone looking for a solid software development partner!

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    • Kate Konyukh
      Kate Konyukh Review from Google
      5.0

      Kate Konyukh's Review Sourced from Google

      I am surprised by the professionalism of XB Software employees. They treat the customer with respect. Very high level of knowledge and skills of the entire team. I recommend!

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Webix
    • DHTMLX
    • GanttPRO
    Data sourced from the agency's DesignRush profile
  • Software Tailored For Success

    STS Software is a leading software development company in US, delivering innovative, scalable, and cost-effective technology solutions to businesses worldwide. With a focus on quality, agility, and customer success, we specialize in web, mobile, and enterprise software development tailored to meet diverse  [... view STS Software profile ]
    Location
    Reston, Virginia
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed

    STS Software Services

    • Web Development
    • eCommerce Development
    • Mobile App Development
    • AI Development
    • Software Development
    • VR/AR
    • Software Testing
    • Staff Augmentation
    • DevOps Consulting
    • Blockchain
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • BAIBAI
      Software Development Project for Health Care Company BAIBAI
    Comprehensive analysis done by DesignRush Agency Experts.
    • Panasonic
    • DMI
    • Standard Chartered
    • Sicpa
    • Abbott
    • Topicus
    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.