72 : Tetra Tech Inc.
|Top 100 Revenue:
|2005 earnings :
||Loss of $99.5 million
|Number of employees:
||Sam W. Box, president and Dan L. Batrack, director, CEO and COO
|Lines of business:
||Resource management, infrastructure, communications and security
||Navy, Federal Aviation Administration, Missile Defense Agency and Army
||Tetra Tech has $101 million contract with the Missile Defense Agency for information management, engineering, workforce management support, administrative services, facility operations and logistics. The agency has been a Tetra Tech client since 1998.