CRE has extensive experience in providing endangered species surveys, construction monitoring, wildlife, and botanical surveys, restoration planning, permitting assistance, wetland delineations, research, and education services. Based in San Francisco, California, Coast Ridge Ecology (CRE) was established in 2007 and is led by Patrick Kobernus, Principal and Lead Biologist, who has 28 years of experience providing biological consulting services in the greater San Francisco Bay Area.