The following organizations have supported the creation of the Calumet Heritage Area.
A total of 79 organizations, business entities, governmental officials, and subject matter experts submitted letters in support of the Calumet region’s national significance and its designation as a National Heritage Area.
Legislative Offices
● Congresswoman Robin Kelly, 2nd District, Illinois
● Congressman Peter J. Visclosky, 1st District, Indiana

Regional Organizations
● Calumet Collaborative
● Chicago Metropolitan Agency for Planning (CMAP)
● Illinois-Indiana Sea Grant
● Northwest Indiana Restoration Monitoring Inventory (NIRMI)
● Northwestern Indiana Regional Planning Commission (NIRPC)
● South Shore Clean Cities
● The Wetlands Initiative

Local Government
● Chicago Park District
● City of Blue Island
● City of Gary, Green Urbanism Division
● City of Michigan City
● Forest Preserves of Cook County
● Gary Historic Preservation Commission
● Lake County Parks
● Sanitary District of Michigan City
● South Suburban Mayors and Managers Association
● Town of Ogden Dunes
● Village of Dolton
● Village of Homewood Heritage Committee
● Village of Park Forest

Businesses, Media, and Economic Development Organizations
● Calumet Area Industrial Commission
● Chicago Southland Convention & Visitor’s Bureau
● City Forest Products, LLC
● Indiana Dunes Tourism
● Lakeshore Public Media
● Mortar Net Solutions
● Doug Ross, The Times of Northwest Indiana
● The Antero Group

Philanthropic Foundations
● Ford Hangar Foundation
● Gaylord and Dorothy Donnelley Foundation
● Legacy Foundation

Colleges and Universities
● Calumet College of St. Joseph
● Indiana University Northwest, Calumet Regional Archives
● Prairie State College
● Purdue University Northwest
● South Metro Higher Ed Consortium
● University of Chicago, Program on Global Environment
● Valparaiso University

National Organizations
● Kiwanis Club of Chicago Heights
● League of Women Voters Lake Michigan Region
● League of Women Voters of La Porte County
● National Parks Conservation Association
● The Nature Conservancy
● Urban League of Northwest Indiana
● Wild Ones, Gibson Woods Chapter #38

Historical, Cultural, Recreational, and Environmental Organizations
● Alliance for the Great Lakes
● Association for the Wolf Lake Initiative
● Blue Island Historical Society
● Calumet Ecological Park Association
● Cedar Lake Historical Association
● Dunes Learning Center
● Friends of Big Marsh
● Friends of the Forest Preserves
● Gary Historical & Cultural Society, Inc.
● Hammond Public Library’s Local History Room
● Historical Society of Ogden Dunes
● Homewood Historical Society
● Landmarks Illinois (LPCI)
● Lansing Historical Society
● National A. Philip Randolph Porter Museum
● Northwest Indiana Steel Heritage Project
● Openlands
● Save the Dunes
● Shirley Heinze Land Trust
● Spotlighting Southeast Chicago and Northwest Indiana
● South Shore Arts
● South Shore Trails
● South Suburban Heritage Association
● Southeast Chicago Historical Society
● Thornton Historical Society
● United Urban Network

Subject Matter Experts
● Robert J.Boklund, MSES, La Porte County Conservation Trust
● Michael Innis-Jimenez, Ph. D., University of Alabama
● Ann Durkin Keating, Ph.D., North Central College
● S. Paul O’Hara, Ph. D., Xavier University
● Kenneth J. Schoon, Ph. D., Indiana University Northwest (Emeritus)
● Christine J. Walley, Ph. D., Massachusetts Institute of Technology