The Prepared Environment
- Resources to help Montessori teachers get organized.
- http://preparedenvironment.googlepages.com

Montessori for Everyone
- Montessori materials for schools and homeschools; available printed and as PDFs. Categories include language, math, geometry, art, music, history, and geography.
- http://www.montessoriforeveryone.com

Montessori House
- Montessori related DVD's for use by home schoolers.
- http://www.mymontessorihouse.com/

USA Montessori Organization
- International online 6-9 elementary education diploma program for Montessori schools. Includes albums, books, and school certification.
- http://www.usamontessori.org/

Montessori 'N Such, Inc.
- Sells life skills, sensory education, mathematics, language and thematic units for early-childhood and elementary classrooms.
- http://www.montessori-n-such.com/

Lakeview Montessori Learning Materials
- Word objects and phonic materials for Montessori classrooms.
- http://www.learningstorebylakeview.com/

Montessori Album Teaching Guide Books.
- Montessori guide books for those working with young children.
- http://www.montessori-book.com/

Maitri Learning
- Montessori Card materials for reading, science, geography, and math.
- http://www.maitrilearning.com

Montessori Educational Computer Systems
- Interactive multi-sensory software with spoken presentations. CDROMs available for Macintosh or Windows.
- http://www.mecssoftware.com/

Montessori Images
- Features illustrative companion activities for children's picture books
- http://montessori-images.com

The Montessori Materials Group
- Free downloads of curriculum support materials for Montessori classrooms & homeschools. User driven.
- http://www.montessorimaterials.org

Montessori Print Shop
- Montessori materials for Primary and Elementary schools and Homeschools. Materials are available in Print, PDF Files and CD Rom format.
- http://www.montessoriprintshop.com

Montessori Research and Development
- Educational materials, books, and manuals for early-childhood and elementary.
- http://www.montessorird.com/

Montessori Services
- Child-size products for preschoolers. Includes practical life, sensorial, language, science, geography, music, art, manipulatives, and parent-teacher resources.
- http://www.montessoriservices.com/

In-Print for Children
- Picture cards and charts designed for matching, classifying, labeling, and sequencing in areas of sensory perception, language, geography, biology, and zoology. For early childhood and elementary classrooms.
- http://www.in-printforchildren.com/

Heart in Hand
- Materials for early-childhood and elementary classrooms.
- http://members.bellatlantic.net/jbartlet/