Down’s Syndrome Association
Down Syndrome Medical Interest Group UK and Ireland
Down’s Syndrome Research Foundation
Down Syndrome Education
Down Syndrome Ireland
The Makaton Charity
Signalong – communication charity
Cerebra
Contact (previously contact a family)
IPSEA (Independent Advisor of Special Education Advice)
Snap Cymru
Government policy
National Association for Down Syndrome (US)
National Down Syndrome Society (NDSS) (US)