Scapuloperoneal Disease Association (Scapuloperoneal Disease)

Schizophrenia Society of Canada (Schizophrenia)

Shwachman-Diamond Syndrome Canada Inc. (Shwachman-Diamond Syndrome)

Scleroderma Foundation (Scleroderma)

Scoliosis Association Inc. (Scoliosis)

Share and Care Cockayne Syndrome Network Inc. (Cockayne Syndrome)

Shy-Drager Syndrome/ MSA Support Group (Shy-Drager Syndrome)

Sickle Cell Association of Ontario (Sickle Cell Anemia)

Sickle Cell Foundation of Alberta (Sickle Cell Anemia)

Sickle Cell Society (Sickle Cell Anemia)

Sjogren's Syndrome Foundation Inc. (Sjogren's Syndrome)

Smith-Lemli-Opitz Syndrome /RSH Foundation (Smith-Lemli-Opitz Syndrome)

Sotos Syndrome Support Association (Sotos Syndrome)

Spina Bifida &Hydrocephalus Association of Canada (Spina Bifida, Hydrocephalus)

Spina Bifida & Hydrocephalus Association of Ontario (Spina Bifida, Hydrocephalus)

Stickler Involved People (Stickler Syndrome)

Sturge-Weber Foundation (Canada) Inc. (Sturge-Weber Syndrome, Klippel-Trenaunay Weber Syndrome, and Port-Wine Stains)

Sturge-Weber Foundation (USA) (Sturge-Weber Syndrome, Klippel-Trenaunay Weber Syndrome, and Port-Wine Stains)

Support Organization for Trisomy 18, 13 and Related Disorders (SOFT) (Trisomy 18 & 13, Edwards Syndrome, Pallister-Killian Syndrome)

Supporting Aussie Kids with Kabuki Syndrome (Kabuki Syndrome)