Chapters in Region
- Black Hills Scale Modelers - Rapid City, South Dakota
- Butch O'Hare - Aurora, Illinois
- Capt James McKinstry - Buffalo Grove, Illinois
- CARS in Miniature - Crystal Lake, Illinois
- GTR - Crystal Lake, Illinois
- IPMS Midwest Scale Modelers - Delavan, Wisconsin
- IPMS/Chicago Sprue Stretchers - Chicago, Illinois
- IPMS/Stateline Area Modelers - Durand, Illinois
- Lake Region Scale Modelers - Carpentersville, Illinois
- Mad City - Madison, Wisconsin
- Minnesota Military Figure Society - South St. Paul, Minnesota
- Northwoods Scale Model Phanatics - Eagle River, Wisconsin
- Richard I Bong - Oak Creek, Wisconsin
- RPM Twin Cities - Saint Joseph,
- South Central Modelers - Mankato, Minnesota
- Steve Wittman - Oshkosh, Wisconsin
- Techmages - Lake Villa, Illinois
- Twin City Aero Historians - South St. Paul, Minnesota
- Will Cook - Orland Park, Illinois
- Zumbro Valley Scale Modelers - Rochester, Minnesota