Asociaciones internacionales:
- Association Montessori Internationale (AMI)
- Association Montessori Internationale USA (AMI/USA)
- Asociación Montessori Española (AME)
Otras asociaciones:
- TheNorth American Montessori Teachers’ Association (NAMTA)
- CanadianCouncil of Montessori Administrators (CCMA)
- The Institute for Montessori Education (TIME)
- Montessori AccreditationCouncil for Teacher Education (MACTE)
- Montessori Educational Programs International (MEPI)
- Montessori Europe Pan American Montessori Association (PAMS)
- The Montessori Foundation (IMC)
- American Montessori Society (AMS)
- Opera Nazionale Montessori