 |
| State | Location | School Type | School | ESL Program |
| CO | Lakewood | U | Colorado Christian University | |
| CO | Fort Collins | U | Colorado State University | Intensive English Program |
| CO | Denver | U | Colorado Technical University | |
| CO | Denver | U | Johnson & Wales University | ELS Language Center |
| CO | Boulder | U | Naropa University | |
| CO | Denver | U | Regis University | |
| CO | Denver | U | Teikyo Loretto Heights University | |
| CO | Colorado Springs | U | United States Air Force Academy | |
| CO | Boulder | U | University of Colorado at Boulder | International English Center |
| CO | Colorado Springs | U | University of Colorado at Colorado Springs | ESL Program |
| CO | Denver | U | University of Colorado at Denver | American Language Center |
| CO | Denver | U | University of Denver | English Language Center |
| CO | Greeley | U | University of Northern Colorado | ESL Program |
| CO | Pueblo | U | University of Southern Colorado | American Language Academy |
| CO | Colorado Springs | C | Blair College | |
| CO | Colorado Springs | C | Colorado College | |
| CO | Glenwood Springs | C | Colorado Mountain College | |
| CO | Denver | C | Denver Career College | |
| CO | Durango | C | Fort Lewis College | |
| CO | Grand Junction | C | Mesa State College | |
| CO | Denver | C | Metropolitan State College | |
| CO | Colorado Springs | C | Nazarene Bible College | |
| CO | Gunnison | C | Western State College | |
| CO | Various Locations | C | College America | |
| CO | Greeley | CC | Aims Community College | English as a Second Language |
| CO | Littleton | CC | Arapahoe Community College | Spring International Language Center |
| CO | Rangely | CC | Colorado Northwestern Community College | |
| CO | Aurora | CC | Community College of Aurora | ESL Program |
| CO | Denver | CC | Community College of Denver | Spring International Language Center |
| CO | Denver | CC | Community Colleges of Colorado | |
| CO | Westminster | CC | Front Range Community College | English as a Second Language |
| CO | Lamar | CC | Lamar Community College | |
| CO | Fort Morgan | CC | Morgan Community College | ESL Program |
| CO | Colorado Springs | CC | Pikes Peak Community College | English Language Institute |
| CO | Pueblo | CC | Pueblo Community College | |
| CO | Lakewood | CC | Red Rocks Community College | English as a Second Language |
| CO | Sterling | JC | Northeastern Junior College | |
| CO | La Junta | JC | Otero Junior College | |
| CO | Trinidad | JC | Trinidad State Junior College | |
| CO | Denver | O | Bridge Linguatec International | |
| CO | Denver | O | Colorado School of English | |
| CO | Golden | O | Colorado School of Mines | Interlink Language Center |
| CO | Boulder | O | BizEnglish | |
| CO | Boulder | O | Economics Institute | |
| CO | Denver | O | Emily Griffith Opportunity School | Language Learning Center |
| CO | Boulder | O | Intercambio | |
| CO | Colorado Springs | O | International Students Inc. | |
| CO | Windsor | O | Strive Educational Center | |
| CO | La Junta | O | The International Cultural Exchange, Ltd. | |
