Located in Phoenix, Ariz., Sonora Quest Laboratories is an integrated medical laboratory system. The company offers a range of services, such as long term care services, anatomic pathology services, diagnosis and testing. Its comprehensive on-site test menu includes routine testing and esoteric cytogenetic studies. Sonora Quest Laboratories has been voted as the 'Best Place to Work' in 2009. The Arizona Business Magazine and Best Companies AZ honored Sonora Quest Laboratories as one of their 'The Most Admired Companies in Arizona for 2010 and 2011.'