Varian Medical Systems designs, manufactures, sells, and services medical devices and software products for treating cancer and other medical conditions worldwide. Varian has a staff of over 6,600 people in 70 sales and support offices around the globe. The company was formerly known as Varian Associates and changed its name to Varian Medical Systems, Inc. in April 1999. Founded in 1948, the company is headquartered in Palo Alto, California.