| chicagowilderness.org | Chicago Wilderness: A Regional Nature Reserve |
| chicagoenvironment.org | Chicagoland Environmental Network |
| chatfieldbasin.org | Chatfield Basin Conservation Network |
| fpdcc.com | Cook County Forest Preserve District |
| northbranchrestoration.org | North Branch Restoration Project |
| ca.gov | California Environmental Protection Agency (Cal/EPA )e |
| architecture.org | Chicago Architecture Foundation - 312.922.3432 |
| savelivingspace.org | Citizens for Conservation |
| chicagoasa.org | American Statistical Association, Chicago Chapter |
| asmchicago.org | ASM International, Chicago Regional Chapter |
United States , Washington , Seattle