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About Us

Sonora Quest Laboratories is an integrated laboratory system servicing over 7,000 clients throughout Arizona including hospitals, physicians, managed care organizations and employers. We have approximately 2,600 employees statewide and perform over 75,000 diagnostic tests per day. Our comprehensive on-site test menu includes routine testing to more esoteric cytogenetic studies.

At Sonora Quest Laboratories, our Ethical Behaviors, Mission, Vision, and Values are more than just words on paper. They are the guidance we use in everything we do.


  • Safely perform error free work, on time, every time.


  • Be the trusted leader in diagnostic testing and information services.

Ethical Behaviors

  • Honorable
  • Truthful
  • Fair
  • Decent
  • Just