- Innovative Interactions Inc.
 - I3 provides expertise in distance learning, telecommunications, networking, classroom design, grants, training, curriculum, research, and project management. - Kamico Instructional Media
- Sells literature guides and games, as well as math software.
- Odyssey Learning Center
- Offers tutoring, summer and enrichment programmes, and test preparation classes. Sells a variety of learning products.
- Science Stuff
- Science products for students, teachers, and schools.
- Steck-Vaughn Publishing
- Publisher of supplementary educational materials serving the elementary through high school, adult education, bookstore, and home education markets.
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