Mark H. Landon

ACI Medical Devices, Inc. manufactures medical devices. Its products include vascular, women's health, urology, and gastroenterology products. It supplies disposable devices to cardiac cath-labs, radiology labs, and critical care units. The company was founded by Dean Wallace, Christopher A. Cutler, and Steven R. Smith in 1993 and is headquartered in Athens, TX.

Argon Medical Devices, Inc. manufactures specialty medical products. It offers arterial lines, endomyocardial biopsy, percutaneous drainage, urology, bone and bone marrow biopsy, fluid management systems, critical care, pressure monitoring, mammography, drapes and covers, mechanical thrombectomy, and transjugular liver biopsy products. The company was founded in 1972 and is headquartered in Frisco, TX.