Exhibit 21 - List of Subsidiaries - ------------------------------------------------------------------------ --------------------- SUBSIDIARY INCORPORATION - ------------------------------------------------------------------------ --------------------- PIA Merchandising Co., Inc. California - ------------------------------------------------------------------------ --------------------- Pacific Indoor Display Co. California - ------------------------------------------------------------------------ --------------------- Pivotal Sales Company California - ------------------------------------------------------------------------ --------------------- SPAR Acquisition, Inc. Nevada - ------------------------------------------------------------------------ --------------------- SPAR Incentive Marketing, Inc. Delaware - ------------------------------------------------------------------------ --------------------- SPAR Trademarks, Inc. Nevada - ------------------------------------------------------------------------ --------------------- SPAR Marketing, Inc. (f/k/a SPAR Acquisition, Inc.) Delaware - ------------------------------------------------------------------------ --------------------- SPAR Performance Group, Inc. Delaware - ------------------------------------------------------------------------ --------------------- SPAR Marketing Force, Inc. Nevada - ------------------------------------------------------------------------ --------------------- SPAR Marketing, Inc. Nevada - ------------------------------------------------------------------------ --------------------- SPAR, Inc. (f/k/a SPAR/Burgoyne Information Services, Inc.) Nevada - ------------------------------------------------------------------------ --------------------- SPAR/Burgoyne Retail Services, Inc. (f/k/a SPAR Retail Information, Inc.) Ohio - ------------------------------------------------------------------------ --------------------- SPAR/PIA Retail Services, Inc. Nevada - ------------------------------------------------------------------------ --------------------- Retail Resources, Inc. Nevada - ------------------------------------------------------------------------ --------------------- Pivotal Field Services, Inc. Nevada - ------------------------------------------------------------------------ ---------------------