Geography & Licensing As a general contractor, we construct both small and large projects depending on the client's needs. While most of our clients are located in northern California, Corey Delta currently holds contractors licenses and has active corporate status in seven western states, including Hawaii. Home / Company Profile / Services / Safety / Careers & Training / News / Site Map Corey Delta, Inc. P.O. Box 637 Benicia, CA 94510 / 525 Airpark Road Napa, CA 94558 Phone# 707-747-7500 / Fax# 707-745-5619 / 800-727-2260 E-Mail Address: cdinfo@coreydelta.com Copyright 2007, Corey Delta Constructors. All rights reserved.