Arizona’s #1 Bioscience Company
Sonora Quest Laboratories, a joint venture between Banner Health and Quest Diagnostics, is the nation’s largest integrated laboratory system with approximately 3,100 employees serving more than 23,000 patients every day throughout Arizona. We are the market share leader in clinical laboratory testing in Arizona, performing more than 60 million diagnostic tests per year.
Sonora Quest Laboratories has proven its focus on quality, recognized by numerous awards representing our hard work and commitment to patient care. We are the only healthcare company ever to receive our state’s highest quality award, the Arizona Governor’s Award for Quality. No organization has attained this award since. Other recent awards include a 2017 IMPACT Award for Exceptional Innovator from the Greater Phoenix Chamber of Commerce; seven consecutive #1 Bioscience Company in Arizona recognitions by Ranking Arizona / AZ Big Media, most recently in 2018; and eight consecutive Top 40 Most Admired Companies in Arizona recognitions by az magazine / BestCompaniesAZ, most recently in 2017.