helix environmental planning california logo

Contact Us

SAN DIEGO COUNTY (HQ)

7578 El Cajon Boulevard
La Mesa, CA 91942
Phone 619-462-1515
Fax 619-462-0552

HELIX Environmental Planning has an excellent reputation earned through creative problem-solving, commitment to our clients, high-quality work products, and tailored solutions. Please contact us for more information. For general inquiries, please use the online form below, or contact our headquarters location so we can direct you to the appropriate person.

Media Inquiries: tiffanyt@helixepi.com
Teaming Inquiries: marketing@helixepi.com
General Inquiries/Receptionist: frontdesk@helixepi.com

North SAN DIEGO COUNTY

701 Palomar Airport Road, Suite 120
Carlsbad, CA 92011
Phone 760-517-9060

LOS ANGELES COUNTY

135 W. Green Street, Suite 100
Pasadena, CA 91105
Phone 626-463-0060

SACRAMENTO COUNTY

1180 Iron Point Road, Suite 130
Folsom, CA 95630
Phone 916-435-1205

PLACER COUNTY

1677 Eureka Road, Suite 100
Roseville, CA 95661
Phone 916-435-1202

ORANGE COUNTY

16485 Laguna Canyon Rd, Suite 150
Irvine, CA 92618
Phone 949-573-9450

RIVERSIDE COUNTY

1504 Columbia Avenue, Suite 8
Riverside, CA 92507
Phone 442-287-5400