American soccer writing, history & data.
| Club | Location | Years |
|---|---|---|
| Idaho Wolves | - | 2004 |
| IMG Academy Bradenton | - | 1998–2018 |
| Immaculate Conception Parish | - | 1908–1911 |
| Independent A.F.C. | - | 1902–1912 |
| Indianapolis Braves | - | 2007 |
| Indian Motorcycle | - | 1920–1922 |
| Indiana Blast | - | 1997–2004 |
| Indiana Invaders F.C. | - | 1983–2011 |
| Indiana Twisters | - | 1996–1997 |
| Indiana United | - | 2011 |
| Indios USA | - | 2007 |
| Indy Daredevils | - | 1974–1979 |
| Indy Eleven NPSL | - | 2007 |
| Indy Eleven | - | 2014 |
| Inland Empire Panteras | - | 1995–1995 |
| Innisfail Hurling and Football Association | - | 1905–1955 |
| Innisfail Hurling & Football Association | - | 1905 |
| Inter S.C. | - | 1960–1969 |
| Inter S.C. | - | 1996 |
| Interborough Rapid Transit F.C. | - | 1913–1930 |
| Inter-Montreal F.C. | - | 1983 |
| International A.C. | - | 1895–1896 |
| International Club | - | 1932–1935 |
| Internacional de Toronto | - | 2014 |
| Inter United FC | - | 2014 |
| Iowa Rush | - | 2010 |
| Irish-American F.C. | - | 1933–1951 |
| Irish American F.C. | - | 1933 |
| Ironsides A.F.C. | - | 1916–1917 |
| ISC Gunners FC | - | 2012 |
| Italian Virtus | - | 1962 |