Central Regional Manager - Mark Perry, PE

South Regional Manager - Steve Giannino, PE

Northeast Regional Manager - John Trepanowski, PE

Health and Safety Manager - Matthew Soltis, CIH, CSP

Director of Marketing - Richard Ninesteel, PE

Questions or comments on our web site:
webmaster@ttnus.com

Our corporate headquarters are located at:

Tetra Tech NUS, Inc.
Foster Plaza 7
661 Andersen Drive
Pittsburgh, PA 15220-2745
(412) 921-7090
(412) 921-4040 (fax)