The Costa Mesa Chamber of Commerce is the leading proponent for the interests of local business. This includes the prosperity of its individual members, the vitality of its marketplace and the quality of its community life. We are dedicated to providing your business with the vital resources, marketing and networking tools needed to thrive in our region.  Membership provides numerous benefits and keeps you on top of important ever-changing issues and trends in our local marketplace and beyond. Costa Mesa Chamber of Commerce has been serving our business community for over 50 years!