Proper identification of event sponsors is a key concern in sponsorship com
munication. Although practitioners have assumed that event sponsors are ide
ntified primarily through pure recollection, the authors show that sponsor
identification involves a substantial degree of construction. Results from
three experiments indicate that sponsor identification is biased toward bra
nds that are prominent in the marketplace and semantically related to the e
vent. These biases appear to emanate from constructive processes whereby du
ring identification, respondents use the prominence and relatedness of avai
lable brands as heuristics to verify their recollection of event-sponsor as
sociations. The effects of relatedness on sponsor identification seem stron
ger and more robust than those of prominence, which appears to be invoked o
nly for large events. Both effects are robust across methods of identificat
ion assessment though less pronounced when the accuracy threshold is high.