All 3 companies
A–Z by legal name| Company | Registry number | Registered | Status | City |
|---|---|---|---|---|
| AMERICAN COUNCIL OF ENGINEERING COMPANIES OF SOUTH DAKOTA, INC. | NS005283 | 1973-04-04 | Active | Brookings |
| THE SOUTH DAKOTA ENGINEERING SOCIETY | NS000555 | 1962-12-21 | Active | Brookings |
| THE SOUTH DAKOTA SOCIETY OF PROFESSIONAL LAND SURVEYORS, INC. | NS007788 | 1984-03-05 | Active | Brookings |