Chapters in Region
- Cincinnati Scale Modelers - Batavia, Ohio
- Dayton Area Plastic Modelers - Beavercreek OH, Ohio
- Don Vidra Chapter - Mansfield, Ohio
- Duneland - Porter, Indiana
- Eddie Rickenbacker - Blacklick, Ohio
- Erie Scale Modelers - East Springfield, Pennsylvania
- Fame Cities/Ed Kinney Chapter - Canton, Ohio
- Fort Wayne - Walker "Bud" Mahurin Chapter - Fort Wayne, Indiana
- Fremont Kitbashers - Fremont, Ohio
- IPMS Capital Area Modelers Society (C.A.M.S.) - Lansing, Michigan
- IPMS Willow Run Bomber Plant - Ypsilanti, Michigan
- John Glenn - Independence, Ohio
- Kalamazoo - Kalamazoo, Michigan
- Livonia - Livonia, Michigan
- Lorain County - Elyria, Ohio
- Mid Michigan - Saginaw, Michigan
- Military Modelers Louisville - Louisville, Kentucky
- Northeast Ohio (NEO) - Akron, Ohio
- Roscoe Turner - Indianapolis, Indiana
- Shenango Valley Area Scale Modelers - Sharpsville, Pennsylvania
- Three Rivers - Whitehall South West Pittsburgh, Pennsylvania
- Warren - Eastpointe, Michigan
- West Michigan - Grand Rapids, Michigan
- Western Reserve - Mayfield, Ohio
- Wright Field Scale Modelers - Fairborn, Ohio