Down Syndrome Organization of Southern Nevada (DSOSN) is the leading nonprofit organization and primary source of education, information, and support for Southern Nevada families affected by Trisomy-21, more commonly known as Down syndrome. DSOSN provides a variety of services for children, teens and adults with Down syndrome including: educational and recreational workshops and programs, developmental and speech therapy, sign language, advocacy outreach, member socials, support groups, and educational resources. Mission Statement: To enlighten the public by promoting a positive understanding of Down syndrome in the community and be a source of support, information and education for families and individuals with Down syndrome.