- Advanced Academic Systems
- All Kinds of Minds
- American Museum of Natural History
- Association of Educational Publishers
- AT&T
- Bank Street College of Education
- Bill Smith Group
- CBS Software
- Children’s Television Workshop
- Citizen Schools
- Course Crafters, Inc.
- D. C. Heath and Company
- Davis Publications
- The Devereux Foundation
- Educational Testing Service Formal Systems Inc.
- Eebee Baby
- Eggshell Games
- Global Knowledge Exchange
- Griffin Enterprises, LLC.
- Harper and Row
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- Henson Associates
- Highlights for Children
- Holt, Rinehart and Winston
- IBM Corporation
- IFAW (International Fund for Animal Welfare)
- Kaplan, Inc.
- Language Publications Interactive, Inc.
- Linworth Publishing, Inc.
- Macmillan/McGraw-Hill
- Mitchell Kriegman
- National Theatre for Children
- Nickelodeon, MTVN
- PCI Education
- Philips Interactive Media of America
- Scholastic Inc.
- Sesame Workshop
- Stephen Gass
- WINGS for learning, Inc.
- Words & Numbers
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