Locating clubs

I am coming to the hempfest next week and would like to contact as many clubs as possible to bring them samples of my products. I will have a booth in cannabis cove. I just introduced my products for the first time at the S.F. May day March. I now ship my products to any legally authorized clubs and patients. I DO NOT SELL POT or anything else to smoke. I would like to send invites to the local clubs to come check us out. Any help would be appreciated. We will also be at the N.O.R.M.L. confernece in S.F. in September.