Mark Brunn joined Manheim Auctions in 1988 as a senior accountant and later that year became the controller for California Auto Dealers Exchange. In 1991 he was promoted to assistant general manager for the auction. In 1994, Brunn transferred to Georgia Dealers’ Auto Auction as assistant general manager. In 1995, he was promoted to general manager of Fredericksburg Auto Auction. A year later, he transferred to Greater Nevada Auto Auction. In 2001, he was named vice president of special operations and was responsible for starting up the Best Practices team. Within a year, he was named vice president of career development. In November 2002, he was promoted to vice president and general manager of Remarketing Solutions.