The following are a few of the "Best 100 Sources for Marketing Information" as rated by American Demographics' 1994 Directory:
ACCRA (American Chamber of Commerce Research Association) (703) 998-0072 American Business Information (402) 593-4500 CACI Marketing Systems (800) 292-2224 Donnelly Marketing (203) 353-7223 Find/SVP (212) 633-4510 Information Resources (312) 726-1221 Mediamark Research (MRI) (212) 599-0444 National Opinion Research Center (312) 753-7500 Roper/Starch (212) 599-0700