| AIken County SC | CSRA (Augusta GA Metro Area) |
| Battle River Railway Modellers | Camrose, AB, Canada |
| Calgary Free-mo | Calgary, Alberta, Canada |
| Cariboo Free-mo Group | Quesnel, BC Canada |
| Central Florida Free-Mo | Central Florida |
| Central Illinois Railroad Club, The | Bloomington, IL |
| Chicago Free-Mo | Chicago Area |
| Chilliwack Model Railway Club (Free-mo Division) | Chilliwack BC Canada |
| Colorado Free-mo | Denver, CO |
| Credit Valley Free-Mo | Toronto Ontario Canada |
| Delaware Valley Free-Mo | Philadelphia PA |
| Erie Lackawanna Free-mo Group | Various places |
| Finger Lakes Model Railroad Club | Geneva, NY |
| Free-mo LA | The greater LA area of California |
| Free-Modu-Rail de la Capitale | Quebec City, QC G2A 2B1 Canada |
| Iowa Free-Mo | All of Iowa |
| Minnesota Free-mo Modelers | Minneapolis / St Paul Metropolitan Area, Minnesota |
| New England Free-mo | New England (CT, MA, ME, NH, RI AND VT) |
| North Texas Free-mo | Fort Worth/Dallas |
| Northern California Free-mo (NorCalF) | The greater San Francisco Bay Area region of California |
| Ohio Valley Free-mo | Southwest Ohio |
| Oklahoma Free-mo | Oklahoma |
| Ottawa Valley HOTRAK | Ottawa, Ontario, Canada |
| Red Deer Railroaders | Red Deer Alberta Canada |
| RIT Model Railroad Club | Rochester, NY |
| SLO-mo (Free-mo SLO) | San Luis Obispo County, California |
| Southeast Kansas Free-mo | Cherryvale, KS |
| Southeast Michigan Free-mo | South East Michigan (the greater Detroit-Flint metro areas) |
| Southern Kansas Free-mo | Wichita, KS |
| St. Louis Free-mo | St. Louis, Missouri |
| Utah Free-mo | Utah |
| Victoria Model Railway Club | Victoria British Columbia Canada |
| Waikato New Zealand Free mo Group | New Zealand |
| Western Reserve (Ohio) Free-Mo | Akron/Canton/Cleveland Ohio |
| Will County Model Railroad Association | Joliet, IL |
