South Dakota
| Company | Category | Area | Address | Web | Contact person | |
| INTERTRIBAL COURT OF APPEALS | Nclassifiable Estab | South Dakota | 102 4TH AVE SE, ABERDEEN, Brown, South Dakota, 57401-4392, USA | - | - | - |
| INTERVENTION SCHOOL | Schools | South Dakota | PO BOX 248, MISSION, Todd, South Dakota, 57555-0248, USA | - | - | Moses Traversie |
| INTERVENTION SCHOOL | Element, Secon Schl | South Dakota | PO BOX 248, MISSION, Todd, South Dakota, 57555-0248, USA | - | - | AL EISEMAN |