United States Soccer Federation (USSF)

1. Major League Soccer (MLS) – Top level men’s league
2. USL Championship (USLC) – Second level men’s league
3. League One (USL League One) – Third level men’s league
4. National Independent Soccer Association (NISA) – Third level men’s league
5. MLS Next Pro – Third level men’s league (reserve league for MLS teams)
6. National Women’s Soccer League (NWSL) – Top level women’s league