Contact Us

Clinical testing panelist posing in side profile, looking toward the camera

Contact us


For USA Customers only:
ALS Limited will use your personal information to manage your account and provide requested services. We may also contact you about products, services, and relevant content if you consent.

By providing your phone number to ALS Limited, You agree and acknowledge that ALS Limited may send me text messages to my wireless phone number for any purpose. Message and data rates may apply. Message frequency will vary, and you will be able to Opt-out by replying "STOP." Message and data rates may apply, if you require "HELP" or you may call us at 713-424-5512.


ALS (Previously Reliance Clinical Testing Services | RCTS)

3207 Esters Road

Irving, Texas 75062

(972) 871-7578/Option1