| Value | Category | Cases | |
|---|---|---|---|
| Aurecon | 2 |
0.2%
|
|
| DMM | 5 |
0.6%
|
|
| ISS | 1 |
0.1%
|
|
| Ninham Shand | 1 |
0.1%
|
|
| SRK | 259 |
30.8%
|
|
| Umvoto | 265 |
31.5%
|
|
| WRP | 171 |
20.4%
|
|
| Water for Africa | 136 |
16.2%
|