All 3 companies
A–Z by legal name| Company | Registry number | Registered | Status | City |
|---|---|---|---|---|
| SOUTH DAKOTA COACHES FOUNDATION | NS009996 | 1993-12-22 | Active | Mitchell |
| South Dakota Interscholastic Athletic Administrators Association | NS178370 | 2020-03-06 | Active | Sioux Falls |
| THE SOUTH DAKOTA SPORTS HISTORY INSTITUTE, INC. | NS010667 | 1996-10-21 | Dissolved | Sioux Falls |