Multiples of Illinois, also known as the Illinois Organization of Mothers of Twins Clubs, Inc. or IOMOTC was founded in 1962 as an Illinois non-profit, educational, public service organization for mothers of twins and higher-order multiple birth children. Multiples of Illinois provides support, information, and networking services to parents of twins and higher-order multiples through its member club affiliates.  Multiples of Illinois is proud to serve multiple birth families in Illinois through its scholarship program, Special Needs Assistance Fund, speakers’ bureau, a quarterly publication, and an annual conference.

Multiples of Illinois also serves as a liaison with the Multiples of America (MoA), also known as National Organization of Mothers of Twins Clubs, Inc., a network of local clubs nationwide whose basic purposes are research and education.