- Five Star Publishing, a part of Gale, Cengage Learning, Waterville, Maine, 2016
- Wheeler Publishing, a part of Gale, a Cengage Company, Waterville, Maine, 2017
- Thorndike Press, a part of Gale, a Cengage Company, Waterville, Maine, 2021
- Thorndike Press, Waterville, Maine, 2021
- Thorndike Press, a part of Gale, a Cengage Company, Waterville, Maine, 2023
- Thorndike Press, a part of Gale, a Cengage Company, Waterville, Maine, 2022
- Wheeler Publishing, Waterville, Maine, 2020
- Wheeler Publishing, a part of Gale, a Cengage company, Waterville, Maine, 2018
- Wheeler Publishing, A part of Gale, Cengage Learning, Waterville, Maine, 2014
- Wheeler Publishing Large Print, Waterville, Maine, 2016