| ATLAS–SAAO observatory | Karoo Hoogland | 1.767 m |
| Gauteng observatory | Randburg | — |
| Hartebeesthoek Magnetic Observatory | — | — |
 Hartebeesthoek Radio Astronomy Observatory | Krugersdorp | — |
| Hermanus Magnetic Observatory | — | — |
| Johannesburg-Hartbeespoort | Johannesburgo | — |
| Korea Microlensing Telescope Network-SAAO | Karoo Hoogland | — |
| LaCaille observatory | centurión | — |
| Lamont–Hussey Observatory | — | — |
| Leiden Southern Station | Johannesburgo | 1.234 m |
| MeerLICHT | Karoo Hoogland | — |
| MONET/South | Karoo Hoogland | — |
 Observatorio Astronómico Sudafricano | Ciudad del Cabo | 15 m |
| Observatorio Boyden | Provincia del Estado Libre | 1.372 m |
 Observatorio de Natal | — | — |
 Observatorio Union | Observatory | 1.808 m |
| Overberg observatory | Bredasdorp | — |
| PESCOPE observatory | Puerto Elizabeth | — |
| Radcliffe Observatory | Pretoria | 1.552 m |
 Real Observatorio del Cabo de Buena Esperanza | Ciudad del Cabo | 15 m |
| Sedgefield observatory | Sedgefield | — |
| South African Radio Astronomy Observatory | — | — |
| Sutherland Observatory | Karoo Hoogland | — |
| Sutherland-LCO A | Karoo Hoogland | — |
| Sutherland-LCO Aqawan A #1 observatory | Sutherland | — |
| Sutherland-LCO B | Karoo Hoogland | — |
| Sutherland-LCO C | Karoo Hoogland | — |
 Yale-Columbia Station | Johannesburgo | 1.762 m |
| Yonsei Survey Telescopes for Astronomical Research | Sutherland | — |