American Montessori Society (AMS)
The American Montessori Society (AMS) is the foremost advocate for quality Montessori education, an innovative, child-centered approach to learning. AMS sets the high professional standards that inform Montessori education as practiced in AMS-accredited schools and taught in AMS-affiliated teacher education programs.

A not-for-profit organization based in New York City, with nearly 13,000 members worldwide, AMS is also a hub of all things Montessori: an information center for its members, the media, and the public; a voice in the public policy arena; and a mobilizing force for the global Montessori community, through support services, research, and professional development events. AMS is a vibrant community of schools, teachers, families, and others determined to make Montessori a strong and positive force in education. RKMS follows the mission of AMS.


North American Montessori Teachers’ Association (NAMTA)
Founded in 1970, the North American Montessori Teachers' Association links Montessorians with their legacy and their future. Its services include print publications, audio visuals, conferences, and research.

NAMTA documents Montessori in the public schools, helps teachers and administrators become more effective, furthers the advancement of Montessori concepts into mainstream education, and helps parents extend the Montessori environment into their homes. RKMS follows the mission of NAMTA.


Association of Illinois Montessori Schools (AIMS)
The purpose of the Association of Illinois Montessori Schools is to provide a professional organizational structure for Member Montessori Schools to: Establish and promote standards of excellence and ethical business practices; Monitor and disseminate pertinent educational legislation information; Conduct a consolidated public relations program; Act as a catalyst for harmonious interaction between members and other educational organizations; Foster appropriate prepared environments for all students.


Illinois Coalition of Non-public Schools (ICNS)
As a coalition of non-public educational groups, ICNS exist to support quality education for all children in the state, to be an advocate for non-public education in Illinois and to actively promote non-public school autonomy and parental rights.