Russell O. Farr

Inform Diagnostics, Inc. provides pathology diagnostic services. It offers subspecialty anatomic pathology in the fields of breast health, dermatology, gastroenterology, hematology, and urology. The company was founded by David D. Halbert and Harold Roe in 1996 and is headquartered in Irving, TX.

AdvancePCS provides healthcare services

Caris Ltd (Caris) is a private equity firm founded in 2004 by David D. Halbert. The firm is headquartered in Irving, Texas.

Caris Life Sciences Ltd. provides diagnostics and anatomic pathology services. The firm develops an unbiased profiling platform for novel target identification, drug development and delivery, diagnostic and disease monitoring, and precision medicine enabling aspects. It offers services throughout the U.S., Europe, Australia and other international markets. The company was founded by David D. Halbert in 2008 and is headquartered in Irving, TX.

Caremark Ltd. operates as a home care provider company. Its services include personal, respite, live-in, and companionship care, medication assistance, shopping and meal preparation, domestic duties, and social activities. The company was founded in 2005 and is headquartered in Worthing, the United Kingdom.