OER Vendors

Open Stax Tutor Beta by Open Stax (Biology, Physics, and Sociology - $10 per student)
https://openstax.org/openstax-tutor#how-it-works-target

The following are OpenStax partners. These companies offer low-cost technology and integrated learning management products compatible with Open Stax and other open textbooks.
https://openstax.org/partners

Ambassador Education Solutions
Barnes & Noble Education Courseware
Carolina Distance Learning
Chegg
Classavo
Cengage Open Now
Cengage Unlimited
Cog Books
Connect for Education (My Web Text)
Copia Class
eMath
Experta
Intellus Learning
Junction Education
Knewton
Lrnr
Lumen
Sapling Learning
McGraw Hill Education
Odigia
panOpen
Partner in Publishing (PIP)
Realize it
Simbio
Top Hat
Visible Body
Web Assign
Wiley
Xyz Homework