California

Gateway Cities Council of Governments
Serving parts of the Los Angeles metropolitan region

Gateway Cities Partnership, Inc.
Serving parts of the Los Angeles metropolitan region

Colorado

Metro Mayors Caucus
Serving the Denver metropolitan region

Illinois

South Suburban Mayors and Managers Association
Serving parts of the Chicago metropolitan region

Chicago Southland Economic Development Corporation
Serving parts of the Chicago metropolitan region

Kansas/Missouri

First Suburbs Coalition
Serving the bi-state region of Kansas City

Massachusetts

Mystic Valley Development Corporation
Serving parts of the Boston metropolitan region

Michigan

Michigan Suburbs Alliance
Serving the Detroit metropolitan region and cities state-wide

Minnesota

North Metro Mayors Association
Serving parts of the Minneapolis metropolitan region

New Jersey

New Jersey 1st Suburbs Network
Serving cities state-wide

Ohio

First Suburbs Consortium of the Southwest
Serving the Cincinnati metropolitan region

Northeast Ohio First Suburbs Consortium
Serving the Cleveland metropolitan region

First Suburbs Development Council
Serving the Cleveland metropolitan region

Central Ohio First Suburbs Consortium
Serving the Columbus metropolitan region

Southern Ohio First Suburbs Consortium
Serving the Dayton metropolitan region

Toledo First Suburbs Consortium
Serving the Toledo region

Pennsylvania

Delaware Valley Regional Planning Commission
Serving the Philadelphia metropolitan region

Texas

Greater Dallas Planning Council
Serving the Dallas metropolitan region

Virginia

Virginia First Cities Coalition
Serving cities state-wide

Washington

Suburban Cities Association
Serving the Seattle metropolitan region

Wisconsin

Wisconsin Alliance of Cities
Serving cities state-wide