We advance public policies that create healthy environments across Illinois.
We are the respected and trusted voice for creating sound policy and ensuring environmental protections.
We create informed advocates and partners.
About us
IEC works to safeguard Illinois—its people, its plants and animals, and the natural systems on which all life depends.
Since our founding in 1975 by a group of dedicated grassroots environmentalists, IEC has led issue advocacy campaigns by allowing environmental organizations to pool their resources and create a higher profile for environmental issues.
Today, IEC represents more than 90 environmental and community organizations and nearly 300 individual members from throughout Illinois – get your membership here!
Our vision
An Illinois where informed decision makers successfully champion the environment.
Maximize environmental protection
Hold decision makers accountable for their votes
Ensure favorable legislative and rulemaking decisions
Our Affiliates
IEC relies on our affiliate members to identify the biggest issues facing our environment.
Covering international to neighborhood-level ranges, our affiliates are experts on environmental issues.
IEC helps affiliates create policies at the state and local levels.