View membership types and pricing options by clicking on Step 5. Joining a Chamber of Commerce is the best bang for your hard earned buck! We are delighted that you are interested in Riverhead. More and more businesses are flocking to Riverhead because they see great potential here. Of course, membership is what you make it! Even at its basic, your business is listed in several sources throughout the year - cheaper than a 1/4 page ad in a weekly paper! The more you take advantage of our services the better for your business! Please take a look at what we offer and decide for yourself.