1. ActiveTextbook
2. Albert Whitman & Company
3. Amazon.com Inc.
4. Apple Inc.
5. Booktopia
6. Cambridge University Press
7. Campion Education (Aust) Pty Ltd
8. Cengage Group
9. Houghton Mifflin Harcourt
10. John Wiley & Sons Inc.
11. Jones and Bartlett Publishers
12. Kortext Ltd.
13. Kotobee
14. Learnetic SA |
15. McGraw Hill LLC
16. Nantong Chariot Information Tech Co.Ltd
17. Oxford University Press
18. Pearson PLC
19. RedShelf
20. Repro India Limited
21. Scholastic Corporation
22. VitalSource Bookshelf
23. VitalSource Technologies LLC
24. Viva Books
25. W.W. Norton & Company