| # | Entity | Status | State |
|---|---|---|---|
| 1 | 22 209 211 206 OLD KNOX GRAMMARIANS' SPORTS ASSOCIATION INCORPORATED |
ABN Active | NSW 2076 |
| 2 | 25 205 872 188 OLD KNOX GRAMMARIANS' ASSOCIATION INCORPORATED |
ABN Active | NSW 2076 |
| 3 | 34 432 638 344 GRAMMARIAN SINGERS INCORPORATED |
ABN Active | VIC 3160 |
| 4 | 62 539 038 013 THE OLD GEELONG GRAMMARIANS INCORPORATED |
ABN Active | VIC 3214 |
| 5 | 91 437 534 785 Grammarians Rowing Club Incorporated |
ABN Active | QLD 4700 |
| 6 | 92 602 188 512 Old Peninsula Grammarians Association (encompassing The OId Peninsula School Association) Incorporated |
ABN Active | VIC 3930 |
| 7 | 94 872 642 839 Yarra Old Grammarians Football Club Incorporated |
ABN Active | VIC 3109 |
| 8 | 97 420 593 527 Old Camberwell Grammarians Soccer Club Incorporated |
ABN Active | VIC 3084 |
| 9 | 99 927 063 970 BALLARAT & QUEEN'S OLD GRAMMARIANS' ASSOCIATION INCORPORATED |
ABN Active | VIC 3355 |