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- Training and Resources in Early Education (TREE)
- Transnet Bargaining Council (TBC)
- Transport Education and Training Authority (TETA)
- Transport, Action, Retail & General Workers Union (THORN)
- Transvaal Agricultural Union (TLU SA)
- Transvaal Agricultural Union (TLU)
- Transvaal Agriculture Union (TLU)
- Trauma Society of SA (TSSA)
- Trauma Society of South Africa (TSSA)
- Tree Society of Southern Africa (TSSA)
- Trekkers Outdoor Recreation Club (TORC)
- Trinity Development Services (TDS)
- Triple Trust Organisation (TTO)
- Tshiame Taxi Association (TTA)
- Tshwane Automotive Special Economic Zone (TASEZ)
- Tulbagh Tourism (TTB)
- Tuli Cattle Breeders’ Society of South Africa (TCBSSA)
- Turnaround Management Association Southern Africa (TMASA)
- Turner Syndrome South Africa (TSSA)
- Tygerberg Bird Club (TBC)
- Tygerberg Business Chamber (TBC)
- Tyre, Equipment, Parts Association (TEPA)