MSA United International is a global consortium of charitable associations united in their dedication to fight the disease of Multiple System Atrophy. The collective purpose of MSA United aspires to balance: community support, medical education and advocacy, public awareness and scientific research. All the charitable groups in MSA United International are staffed entirely by volunteers and include the following non-profit associations:

Defeat MSA Alliance (United States)

Defeat Multiple System Atrophy/Vaincre L’atrophie Multisystématisée (Canada)

Atrofia Multisistémica – ASYD (Spain)

Combattiamo L’Atrofia Multisistemica (Italy)

Defeat Multiple System Atrophy Australia Ltd (Australia)

Defeat Multiple System Atrophy New Zealand Trust (New Zealand)

Landsforeningen Multipel System Atrofi (Denmark)

Defeat MSA Awareness Shoe Campaign (United States)