• ABDO Publishing Company
• Advantage Learning Systems
  (now known as Renaissance Learning)
• Association of Educational Publishers
• Charlesbridge Publishing
• Class.com
• Compass Point Books
• Continental Press
• Creative Education Institute
• Educational Paperback Association
• Follett Software Company
• HiFusion
• Kids Discover Magazine
• Lerner Publishing Group
• National Theatre for Children
• NetSchools Corporation
• Quality Books
• Rigby Education
• Riverdeep
• Rourke Publishing Group
• Scholastic Inc.
• The Institute for Academic Excellence
  (now known as the School Renaissance Institute)
• The Learning Company
• Unique Logic & Technology
• Winnebago Software Company
• World Almanac Library