To request more information by E-mail, please contact Joseph J. Kulikowski, PE, GE, Founder, President and Principal Engineer, at central@genterra.com or please send mail, phone or fax messages to the Irvine Corporate Office at the address listed below. Our branch office locations are also shown.

Corporate Office
GENTERRA Consultants, Inc.
15375 Barranca Pkwy., Suite K-102
Irvine, CA 92618-2208
Phone 949-753-8766
Fax 949-753-8887

Northern California Office
GENTERRA Consultants, Inc.
3017 Douglas Blvd., Suite 300
Roseville, CA 95661
Phone 916-774-7190
Fax 916-784-3855

San Diego Office
GENTERRA Consultants, Inc.
12526 High Bluff Dr., Suite 300
San Diego, CA 92130
Phone 888-423-0111
Fax 949-753-8887

Ventura County Office
GENTERRA Consultants, Inc.
300 E. Esplanade Dr., Suite 900 Oxnard, CA 93036           Phone  (805) 981-3941             Fax (805) 988-0570

Riverside County Office
GENTERRA Consultants, Inc.
400 So. Ramona Ave., Suite 212-W
Corona, CA 92879-1448
Phone 951-278-0668
Fax 949-753-8887