Our Mission

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.
Prairie State

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 100 environmental and community organizations and nearly 500 individual members from throughout Illinois – get your membership here!

Our vision

An Illinois where informed decision makers successfully champion the environment.

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.


IEC’s staff is committed to creating healthy environments across our state.

We are a strong organization working every day towards cleaner air, water and energy.

Our Board

The IEC Board of Directors is composed of environmental leaders from across the state.

Young Professionals Board

Connecting professionals who are committed to environmental protection.

Composed of young professionals from the public, private and non-profit sectors, the IEC Young Professionals Board raises money to support IEC’s work.