Getting in Touch


To inquire about our services, please contact us by calling
(877) 907-9078 or using the form below.

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Corporate Headquarters, Maryland

9801 Washingtonian Boulevard, Suite 350
Gaithersburg, Maryland 20878

Tel. 301.907.9078
Fax. 301.907.3446 
Contact: Brian Whipple, P.E., Vice President
brianw@phe.com

 

California

3990 Old Town Avenue, Suite C-300
San Diego, CA 92110

Tel. 619.260.1033
Contact: John Ribar, P.E., Vice President
johnr@phe.com

Nevada

Tel. 702.222.4026
Contact: Michael West, Vice President
mikew@phe.com
 


Hawaii

61-274 Kamehameha Highway, Suite G
Haleiwa, HI 96712
Tel. 808.753.7702

New Jersey

207 South Stevens Avenue, P.O. Box 207
South Amboy, NJ  08879
Tel. 732.578.9078