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)

Simons VIP Connect   ( Chromosome 16p11.2 Deletions)

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)