Timothy Koogle was first CEO and President of web company Yahoo! between 1995 and 2001. He served as the company's chairman from 1999-2003. He was named to the Top 25 Executives of the Year by BusinessWeek in 1999 and 2000.

Prior to working for Yahoo! Koogle worked for Intermec and Motorola.

He obtained a B.S. degree from the University of Virginia in mechanical engineering, an M.S. degree from Stanford University in engineering and a Ph.D from Stanford University in engineering