| 1 (268) | University of Cape Town | ZAF |  |
| 2 (405) | Stellenbosch University | ZAF | |
| 3 (545) | University of Pretoria | ZAF | |
| 4 (599) | North-West University, Noordwes-Universiteit | ZAF | |
| 5 (707) | University of the Witwatersrand, Johannesburg | ZAF | |
| 6 (940) | University of KwaZulu-Natal | ZAF | |
| 7 (1388) | Council for Scientific and Industrial Research | ZAF |  |
| 8 (1438) | Groote Schuur Hospital | ZAF |  |
| 9 (1489) | University of Johannesburg | ZAF | |
| 10 (1895) | University of the Western Cape | ZAF | |
| 11 (2252) | University of the Free State | ZAF | |
| 12 (2338) | Rhodes University | ZAF | |
| 12 (2338) | South African Medical Research Council | ZAF | |
| 12 (2338) | University of South Africa | ZAF | |
| 15 (3136) | Cape Peninsula University of Technology | ZAF | |
| 15 (3136) | Tshwane University of Technology | ZAF | |
| 17 (3522) | Agricultural Research Council | ZAF | |
| 17 (3522) | Nelson Mandela Metropolitan University | ZAF | |
| 17 (3522) | South African Astronomical Observatory | ZAF | |
| 17 (3522) | University of Fort Hare | ZAF | |
| 17 (3522) | University of Limpopo | ZAF | |
| 22 (4256) | Human Sciences Research Council of South Africa | ZAF | |
| 22 (4256) | Tygerberg Hospital | ZAF | |
| 22 (4256) | University of Venda | ZAF | |
|
