Joe was recently a co-founder of Prime Sports, a betting entity launched in July 2023, leaving the company in February 2025. Before that, he served as CEO of Sport A.D. (Sport Analytics & Data) from 2014 until 2023. He was also instrumental in working for the legalization of sports betting, culminating in the landmark Supreme Court decision in Murphy v National Collegiate Athletic Association.

Gadoon “Spanky” Kyrollos, Chairman of ABV, commented on the appointment, stating, “Joe Brennan, Jr. is a veteran of more than two decades in the gaming industry who brings a deep understanding of betting, media, government relations, strategy, and advocacy to our organization. Joe will assist us in executing our mission to give sports bettors a seat at the table.”