About Us

NorCal_GeneralHELIX Environmental Planning (HELIX) is an employee-owned firm and a leader in environmental consulting and natural resource sustainability. Established in 1991 and with offices in San Diego, Los Angeles, Sacramento, Placer, Orange, and Riverside counties, HELIX provides a broad range of environmental compliance and design services throughout California and the western U.S.


HELIX has extensive experience helping public and private clients comply with environmental laws and regulations, manage natural and cultural resources, and design and construct sustainable projects. Our wholly owned subsidiary, HELIX Environmental Construction Group, specializes in habitat restoration and the installation and maintenance of native habitat.


Commitment to our clients, creative problem solving, and high-quality work products are the hallmarks of HELIX’s success. Many clients, as a measure of their confidence, bring their largest, most sensitive and controversial projects to HELIX.


Our primary in-house services include:

The primary sectors in which we work include: