On September 7, 2012, the name Phoenix FC was announced, along with the club logo.
On March 13, 2014, Phoenix FC were bought out. The new ownership rebranded the franchise to Arizona United.
| Eastern Conference:|
Bethlehem Steel FC | Charleston Battery | Charlotte Independence | FC Cincinnati | Harrisburg City Islanders | Louisville City FC | New York Red Bulls II | Orlando City B | Ottawa Fury FC | Pittsburgh Riverhounds | Richmond Kickers | Rochester Rhinos | St. Louis FC | Tampa Bay Rowdies | Toronto FC II
Clubs on hiatus: