The Association of Oregon Rail and Transit Advocates (AORTA) - The purpose of AORTA is to encourage the development of a balanced and integrated system of transportation for people and freight within and beyond the State of Oregon, and to educate the public about the need for sustainable, fiscally responsible, environmentally sound transportation.
The Alliance of Residents Concerning O'Hare, Inc. (AReCO) - a Chicago area grassroots organization that has been at the vanguard of airport and aircraft related public health and environmental issues since the mid-nineties.
The Center for Environmental Health - CEH protects people from toxic chemicals and promotes business products and practices that are safe for public health and the environment.
Helvetia Community Association (HCA) - The mission of the Helvetia Community Association (HCA) is to preserve the unique historic, cultural, agricultural and natural resources of the Helvetia area. Located approximately fifteen miles west of Portland, Oregon, Helvetia is recognized throughout the Portland metropolitan area for its pastoral farmland, scenic beauty, Swiss-German cultural heritage, and its natural resources. HCA brings together farmers, business owners, concerned citizens, neighbors, and residents of the Helvetia area who are working to promote and preserve the Helvetia community and its neighboring agricultural lands.
PDK Watch - a community watchdog organization that monitors improper and unlawful activity at Peachtree DeKalb Airport (PDK), a general aviation airport near Atlanta, Georgia. A related site is Open DeKalb - a grassroots, community organization dedicated to preserving open government and open records for all of DeKalb County Georgia.
WAAM - a group opposing expansion at Witham Field, a general aviation airport in Martin County, Florida.