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- Retail Motor Industry Organisation (RMI)
- Retailer’s Liaison Committee (RLC)
- Retina South Africa (RSA)
- Rhodes University Canoe Club (RUCC)
- Rice Growers` Association ()
- Road Freight Association (RFA)
- Rock Art Research Institute (RARI)
- Romagnola Cattle Breeders’ Society of South Africa (RCBSSA)
- Roodepoort Chamber of Commerce & Industries (ROCCI)
- Roodepoort Metered Taxi Association (RMTA)
- Rooibos Council (RC)
- Rosslyn Industrialists Association (RIA)
- Rottweiler Working & Breeding Association (RWBA)
- Rowing South Africa (RowSA)
- Royal Agricultural Society of Natal (RAS)
- Royal Natal Yacht Club (RNYC)
- Royal Society of South Africa (RSSA)
- RSA Cartridge Collectors Association (RSACCA)
- Ruminant Veterinary Association of South Africa (RUVASA)
- Rural Arts Development Foundation (RAD)
- Rural Doctors Association of Southern Africa (RuDASA)
- Rustenburg Business Women’s Networking Forum (RBWNF)
- Rustenburg Chamber of Commerce (RCOC)