Although Rotary clubs develop autonomous service programs, all Rotarians worldwide are united in a campaign for the global eradication of polio. In the 1980's, Rotarians raised US$240 million to immunize the children of the world; by 2005, Rotary's centenary year and the target date for the certification of a polio-free world, the PolioPlus program had contributed US$500 million to this cause. In addition, Rotary has provided an army of volunteers to promote and assist at national immunization days in polio-endemic countries around the world.

The Rotary Foundation of Rotary International is a not-for-profit corporation that promotes world understanding through international humanitarian service programs and educational and cultural exchanges.

It is supported solely by voluntary contributions from Rotarians and others who share its vision of a better world. Since 1947, the Foundation has awarded more than US$1.1 billion in humanitarian and educational grants, which are initiated and administered by local Rotary clubs and districts.