GuideStar is the world's largest source of information on nonprofit organizations. GuideStar gathers, organizes, and distributes information about U.S nonprofits.
GuideStar's mission is to revolutionize philanthropy by providing information that advances transparency, enables users to make better decisions, and encourages charitable giving.
Turner Syndrome Support of St. Louis has earned a "GuideStar Platinum Seal of Transparency."
Donations are accepted through our GuideStar Profile Page.