United Percussion was formed in 2003 as a joint venture between two local drum lines. In its first year of competition, United received the WGI bronze medal in Open Class. From there, United began to build upon its early competitive success. In 2004, the group expanded its membership and traveled to San Diego, CA for WGI World Championships. That year, the unit placed 4th in Open Class. In 2005, the unit received the bronze medal for its show "Energy." 2006 was the unit's largest ensemble to date and the group received 5th place at WGI World Championships.