- Arlington Montessori School (arlington-heights)
- Buffalo Grove Montessori School (arlington-heights)
- Doughty Montessori School (ann-arbor)
- Northwest Suburban Montessori School (arlington-heights)
- Private Schools (cu)
- Three Oaks Montessori School (12 S. Linden Ave.) (arlington-heights)
- West Side Montessori (toledo)