HELIX Environmental Planning provides services such as biological resources management, construction monitoring, environmental program management, GIS Services, habitat restoration, landscape architecture, natural resource interpretation and public education services, and regulatory compliance reporting. The company operates mainly in California and the southwestern US, but it undertakes projects worldwide and has offices in Australia, Hong Kong, Mexico, the Northern Marianas Islands, Thailand, the US, Venezuela, and Zimbabwe. HELIX Environmental Planning was founded in 1991.