QUALITY ASSURANCE SOFTWARE TESTING MADE SIMPLE

SOFTWARE TESTING

PLUS QA is a quality assurance software testing company based in Portland, OR.
We provide 100% onshore QA services by experienced testers on real devices.
Find out how we can help you make your next digital project a success.

PLUS QA SUPPORTS HUNDREDS OF SATISFIED CLIENTS INCLUDING

Top down view of a tester working on a laptop with an Android phone on the table next to them.

web & mobile QUALITY ASSURANCE services

PLUS QA has more than 17 years of experience in web and mobile app testing. Our team delivers comprehensive QA support across 600+ real desktop and mobile devices, ensuring accurate compatibility and usability testing guarantees a seamless user experience on every platform.

We are a trusted partner for dozens of startups, creative agencies and large organizations due to our wealth of experience, robust testing capabilities, competitive pricing, and unrelenting commitment to quality across every project we test.

Whether you need functionality testing, device compatibility testing, accessibility testing or more, PLUS QA testing services can help guarantee your next product launch will be a success.

Tester browsing an accessibility testing service page on a mobile device.

Accessibility testing experts

Since 2015, we’ve delivered comprehensive accessibility testing across web, mobile, and desktop platforms to help brands achieve WCAG compliance and reach every user. Our team of certified accessibility specialists help our clients in auditing web and app accessibility, performing accessibility assessments, and generating accessibility conformance reports.

Whether you need ongoing accessibility testing, a one-time audit, or a detailed accessibility evaluation, our experts are here to ensure your digital products are fully accessible and compliant.

Tester browsing an accessibility testing service page on a mobile device.

Types of qa Testing We support

MOBILE TESTING

Our lab includes 600+ real Android and iOS devices in a variety of sizes and operating systems stored in a secure environment.
View Mobile Testing Service

WEB TESTING

Desktop and mobile testing using the web’s most popular browsers. We verify compatibility and identify performance inconsistencies.
View Web Testing Service

MIXED REALITY TESTING

With our library of VR, AR, and Mixed Reality HMDs, we’re ready to test for the future. From our office, we can simulate ideal use cases.
View MR Testing Service

IOT TESTING

Functionality, hardware, and user experience testing on various connected devices. Our team can support a range of wearable devices.
View IOT Testing Service
Tester working on a laptop device
Tester working on a laptop device

qa testing completed on-time, in-house, and onshore

PLUS QA was founded in 2008 with the commitment to help creative and digital agencies to launch better websites, seamless e-commerce, and high-quality interactive experience for all users. Since then, we've built our own QA testing platform and partnered with hundreds of startups, creative agencies, and enterprise clients to ensure their digital products meet the highest quality standards.

We are a privately owned company based in Portland, Oregon. All testing is performed in-house, on real devices, within one of the largest device libraries in the United States - ensuring accuracy, security, and on-time delivery for every project.

Multiple testers collaborating with each other at a conference room table. They are using laptop and mobile devices.

Finding the best QUALITY ASSURANCE testing partner

Every client consultation begins with a thorough understanding of their unique product, goals, and testing challenges, enabling our team to tailor an effective QA Strategy that delivers the right solutions.

Dedicated teams of experienced QA professionals are assembled based on project scope and complexity. Our lean, onshore model enables rapid onboarding, seamless collaboration, and scalable testing support that can be executed immediately and grow with your needs.

Over the years, PLUS QA has engineered in-house tools to manage test cases, track bugs, and generate QA reports. In addition, our AI-powered QA agent expands testing coverage and accelerates delivery across web and mobile applications.

Multiple testers collaborating with each other at a conference room table. They are using laptop and mobile devices.

EXPLORE OUR QA SERVICES

DEVICE COMPATIBILITY TESTING

We have hundreds of devices in-house to ensure your app is compatible across all of the most popular browsers.
View Compatibility Testing

ACCESSIBILITY
TESTING

We do accessibility testing across web, mobile, and desktop platforms to help brands achieve compliance and reach more users.
View Accessibility Testing Service

MANAGED TESTING SERVICES

Our staff can be an extension of yours during development, identifying critical flaws earlier in the product cycle.
View Managed Testing Service

LOCALIZATION
TESTING

With a team of native speakers, we test the accuracy of translations within the context of applications and confirm their functionality.
View Localization Testing Service

ready to start testing?

See why hundreds of businesses choose to test their websites and apps with PLUS QA.

  • 17 yEARS OF EXPERIENCE IN SOFTWARE TESTING

  • US BASED COMPANY

  • testing in a secure environment

  • 600+ DESKTOP AND MOBILE DEVICES

  • CUSTOM QUALITY ASSURANCE TEAMS

  • SAVE COSTS ON ENGINEERING AND QUALITY

contact us

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STAY UP TO DATE WITH OUR BLOG

November 3, 2025

Why Automating Web Accessibility Testing Isn't Enough

READ BLOG

October 22, 2025

AI vs Human Testers: What is the Real Advantage?

READ BLOG

October 10, 2025

What to Expect at the 2025 Pacific Northwest Software Quality Conference (PNSQC)

READ BLOG

October 8, 2025

Design for Inclusivity: 5 Ways to Make Your App More Accessible

READ BLOG