Our Locations Corporate Office: 3130 La Selva Street, Suite 100 San Mateo, CA 94403 Phone:(650) 349-2151         Fax:(650) 345-4921 info (at) wilseyham.com Field Office: 562 Manzanita Avenue, Suite 7 Chico, CA 95926 Phone:(530) 343-5919         Fax:(530) 343-0691   Wilsey Ham offers full service engineering and surveying services to public agencies and private developers.     Home | Company Profile | Locations | Services Career Opportunities | Employees | FTP All contents ©2003 Wilsey Ham, All rights reserved.