Costa Mesa Chamber of Commerce Back to Search Costa Mesa Chamber of Commerce Categories Chambers of Commerce 1870 Harbor Blvd., #105 , Costa Mesa , CA , 92627 (714)885-9090 www.costamesachamber.com Contacts Primary David Haithcock President & CEO Ms. Juliann Harkness Vice President- Member Services & Events Share × Print Email Facebook LinkedIn Twitter Pinterest Powered By GrowthZone