- ACLU
- Gil Anidjar
- Molefi Kete Asante
- Bill Ayers
- Brett de Bary
- Derrick Bell
- Dominic Boyer
- Eric Cheyfitz
- Noam Chomsky
- Roland Chrisjohn
- Dana Cloud
- Kathleen Cleaver
- Drucilla Cornell
- James Craven
- CU-B AAUP
- Hamid Dabashi
- Michael D'Andrea
- Richard Delgado
- Faculty Assembly of the Indiana School of Liberal Arts at Indiana University – Purdue University, Indianapolis (IUPUI)
- Richard Falk
- Juan Gomez-Quinones
- Robert Ivie
- Moana Jackson
- Mumia Abu Jamal
- Mumia Abu Jamal II
- Derrick Jensen
- Robert Jensen
- Robert Jensen II
- Bruce E. Johansen
- George Katsiaficas
- Peter Kirstein
- Barbara Alice Mann
- David McNally
- Michael Meeropol
- Scott Michaelsen
- Carlos Munoz, Jr.
- National Association of Chicana and Chicano Studies
- Robert Perkinson
- Al Ramirez
- Resolution, Emergency Summit of Scholars and Activists Defend Critical Thinking and Indigenous Studies
- Dean Saitta
- Henry Silverman
- James P. Sterba
- David Stannard
- University of Denver AAUP
- Paul Von Blum
- Immanuel Wallerstein
- Benjamin Whitmer
- Robert A. Williams
- Howard Zinn
- Howard Zinn II