Aug. 26 at 1:02 PM
$TTEK Tetra Tech operates through numerous subsidiaries, both historic and current, which have been integrated to provide a wide range of services in environmental management, engineering, technology, and international development. Some key entities include former companies like <<<, Tetra Tech, Inc.;, HSI GeoTrans, Inc.; GeoTrans Wireless; McNamee, Porter, & Seeley, Inc.; SCM Consultants, Inc.; Whalen & Company, Inc.; McCulley, Frick & Gilman, Inc.; Sentrex Communications Company; and Tetra Tech NUS, Inc.; as well as more recent acquisitions and divisions such as Coffey Geotechnics, Hoare Lea, RPS, The Kaizen Company, Management Systems International, and EGlobalTech.