- Environmental Law and Policy Center
- Illinois Green Business Association
- Champaign County Forest Preserve District
- Grand Prairie Friends
- Allerton Park
- Illinois EPA Pollution Prevention
- Governor's Environmental Corps.
- Chicagoland Environmental Network
- IDNR Internship Program
- Illinois State Geological Survey
- Illinois Natural History Survey
- ECO-USA for Illinois
- Prairie River Network
- Illinois Sierra Club
- Argonne National Laboratory
- Peggy Notebaert Nature Museum
- Shedd Aquarium