Skip to main content
Quest Diagnostics

GDPR Subprocessor Lists

Welcome Back to our GDPR Subprocessor Lists

To access a subprocessor list and receive updates when the list is updated, please fill out the form below.

For a list of Quest Diagnostics subsidiaries, joint ventures, and affiliates that, as applicable may process personal data in connection with specialized laboratory services or for business continuity purposes, click here.

* indicates required

Our company

Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services. 

 

Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2026 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only. May include AI-generated and/or AI-modified imagery.