| Railroad Signalmen General Committee 88 | Union Pacific | Omaha, NE | 2,629 |
| Railroad Signalmen General Committee 12 | Burlington Northern | Nolanville, TX | 2,205 |
| Railroad Signalmen General Committee 60 | United | Marshall, IL | 1,236 |
| Railroad Signalmen General Committee 62 | Amtrak Eastern | Seven Valleys, PA | 792 |
| Railroad Signalmen Local Lodge 16 | | Jacksonville, FL | 598 |
| Railroad Signalmen General Committee 3690 | Seaboard Coastline Rr | Jacksonville, FL | 598 |
| Railroad Signalmen Local Lodge 56 | Long Island Railroad | Babylon, NY | 519 |
| Railroad Signalmen General Committee 78 | Southern Rwy System Lines | Ryland, AL | 507 |
| Railroad Signalmen General Committee 58 | Norfolk & Southern Rr | Pandora, OH | 480 |
| Railroad Signalmen General Committee 16 | Northeast-chesapeake & Ohio Rr | Jumping Branch, WV | 411 |
| Railroad Signalmen General Committee 44 | Louisville & Nashville | Flintstone, GA | 368 |
| Railroad Signalmen Local Lodge 72 | | Clinton, MO | 367 |
| Railroad Signalmen Local Lodge 8 | | Omaha, NE | 336 |
| Railroad Signalmen General Committee 4 | Baltimore & Ohio Rr | Fairmont, WV | 318 |
| Railroad Signalmen Local Lodge 20 | | Galesburg, IL | 304 |
| Railroad Signalmen Local Lodge 102 | | Levittown, PA | 287 |
| Railroad Signalmen Local Lodge 141 | | Weatherford, TX | 272 |
| Railroad Signalmen General Committee 36 | N/a | Front Royal, VA | 268 |
| Railroad Signalmen Local Lodge 119 | | Papillion, NE | 263 |
| Railroad Signalmen Local Lodge 77 | | Bluefield, WV | 259 |
| Railroad Signalmen Local Lodge 129 | | Springfield, MO | 257 |
| Railroad Signalmen Local Lodge 188 | | Chattaroy, WA | 244 |
| Railroad Signalmen Local Lodge 110 | | Sweetwater, TN | 225 |
| Railroad Signalmen Local Lodge 154 | | Minneapolis, MN | 210 |
| Railroad Signalmen Local Lodge 121 | | Cleburne, TX | 208 |
| Railroad Signalmen Local Lodge 99 | | Spring, TX | 199 |
| Railroad Signalmen Local Lodge 84 | | Cliffside Park, NJ | 190 |
| Railroad Signalmen Local Lodge 183 | | Park Forest, IL | 180 |
| Railroad Signalmen Local Lodge 103 | Aurora - Galesburg Local | Galesburg, IL | 180 |
| Railroad Signalmen Local Lodge 161 | | Lubbock, TX | 178 |
| Railroad Signalmen Local Lodge 5 | | Northford, CT | 176 |
| Railroad Signalmen Local Lodge 33 | | El Dorado, KS | 169 |
| Railroad Signalmen Local Lodge 87 | | Fort Peck, MT | 168 |
| Railroad Signalmen Local Lodge 228 | | Rocky River, OH | 160 |
| Railroad Signalmen Local Lodge 94 | | Sullivan, OH | 158 |
| Railroad Signalmen Local Lodge 226 | | Kenosha, WI | 154 |
| Railroad Signalmen Local Lodge 19 | | Glendale, CA | 150 |
| Railroad Signalmen General Committee 56 | Southern New England | Guilford, CT | 146 |
| Railroad Signalmen Local Lodge 31 | | Berkeley Springs, WV | 141 |
| Railroad Signalmen Local Lodge 106 | | Seven Valleys, PA | 141 |
| Railroad Signalmen Local Lodge 120 | | Carver, MA | 133 |
| Railroad Signalmen Local Lodge 241 | | Mineola, NY | 130 |
| Railroad Signalmen Local Lodge 239 | Wisconsin Central | Wisconsin Rapids, WI | 129 |
| Railroad Signalmen Local Lodge 111 | | Harrisville, UT | 124 |
| Railroad Signalmen Local Lodge 237 | Wheeling & Lake Erie Rr Locomotive | Canton, OH | 124 |
| Railroad Signalmen Local Lodge 206 | | Houston, TX | 120 |
| Railroad Signalmen Local Lodge 185 | | Pineville, LA | 114 |
| Railroad Signalmen Local Lodge 157 | | Marion, KS | 101 |
| Railroad Signalmen Local Lodge 136 | | Wayne, WV | 99 |
| Railroad Signalmen Local Lodge 10 | | Temperance, MI | 96 |
| Railroad Signalmen Local Lodge 55 | | Bearstown, IL | 96 |
| Railroad Signalmen Local Lodge 68 | | Hammond, IN | 96 |
| Railroad Signalmen Local Lodge 156 | | Hinkley, CA | 92 |
| Railroad Signalmen General Committee 24 | Soo Line | Mount Prospect, IL | 92 |
| Railroad Signalmen Local Lodge 234 | Safetran | Mt Washington, KY | 92 |
| Railroad Signalmen Local Lodge 104 | | Grand Terrace, CA | 91 |
| Railroad Signalmen Local Lodge 229 | | Loomis, CA | 91 |
| Railroad Signalmen Local Lodge 155 | | Post Falls, ID | 86 |
| Railroad Signalmen Local Lodge 14 | | Clarkston, MI | 86 |
| Railroad Signalmen Local Lodge 231 | | Front Royal, VA | 86 |
| Railroad Signalmen Local Lodge 173 | | Fresno, CA | 80 |
| Railroad Signalmen Local Lodge 53 | | Holland, PA | 79 |
| Railroad Signalmen Local Lodge 172 | | Kingman, AZ | 75 |
| Railroad Signalmen Local Lodge 48 | | Finksburg, MD | 74 |
| Railroad Signalmen Local Lodge 18 | | Levittown, PA | 74 |
| Railroad Signalmen Local Lodge 24 | | Arvada, CO | 73 |
| Railroad Signalmen Local Lodge 1 | | Mechanicsburg, PA | 73 |
| Railroad Signalmen Local Lodge 92 | | Stockton, CA | 72 |
| Railroad Signalmen Local Lodge 208 | | Dickson, TN | 71 |
| Railroad Signalmen Local Lodge 126 | | Casa Grande, AZ | 70 |
| Railroad Signalmen Local Lodge 133 | | Fort Worth, TX | 68 |
| Railroad Signalmen Local Lodge 43 | | Webster City, IA | 65 |
| Railroad Signalmen Local Lodge 97 | | Front Royal, VA | 65 |
| Railroad Signalmen Local Lodge 62 | | Worcester, MA | 65 |
| Railroad Signalmen Local Lodge 52 | | De Graff, OH | 64 |
| Railroad Signalmen Local Lodge 93 | | Clay, NY | 63 |
| Railroad Signalmen Local Lodge 123 | | Bay City, MI | 62 |
| Railroad Signalmen Local Lodge 116 | | Troy, TX | 61 |
| Railroad Signalmen Local Lodge 60 | | Clark, NJ | 59 |
| Railroad Signalmen Local Lodge 236 | | Front Royal, VA | 56 |
| Railroad Signalmen Local Lodge 108 | | Clinton, IA | 55 |
| Railroad Signalmen Local Lodge 162 | | Martin, TN | 54 |
| Railroad Signalmen | | Sumrall, MS | 54 |
| Railroad Signalmen Local Lodge 2 | | Pittsburgh, PA | 51 |
| Railroad Signalmen Local Lodge 232 | | Hampden, ME | 50 |
| Railroad Signalmen Local Lodge 28 | | Pleasant Lake, MI | 49 |
| Railroad Signalmen Local Lodge 105 | | Mechanicsburg, PA | 49 |
| Railroad Signalmen Local Lodge 174 | | Chicago, IL | 48 |
| Railroad Signalmen Local Lodge 57 | | Clifton, NJ | 48 |
| Railroad Signalmen Local Lodge 182 | | El Paso, TX | 48 |
| Railroad Signalmen Local Lodge 153 | P J Lukes | Salinas, CA | 47 |
| Railroad Signalmen Local Lodge 137 | | Robertsdale, AL | 47 |
| Railroad Signalmen Local Lodge 109 | | Girard, OH | 46 |
| Railroad Signalmen Local Lodge 132 | | Troy, IL | 44 |
| Railroad Signalmen Local Lodge 178 | | Leeds, AL | 44 |
| Railroad Signalmen Local Lodge 152 | | Albany, OR | 42 |
| Railroad Signalmen Local Lodge 98 | | Rockwell, IA | 42 |
| Railroad Signalmen Local Lodge 42 | | Mooresville, IN | 42 |
| Railroad Signalmen Local Lodge 168 | | Fridley, MN | 41 |
| Railroad Signalmen Local Lodge 81 | | Effingham, IL | 40 |
| Railroad Signalmen Local Lodge 227 | | Paynesville, MN | 40 |
| Railroad Signalmen Local Lodge 238 | | Bel Air, MD | 40 |
| Railroad Signalmen Local Lodge 13 | | Shepherdsville, KY | 39 |
| Railroad Signalmen Local Lodge 176 | | Union, KY | 38 |
| Railroad Signalmen Local Lodge 194 | | Oak Forest, IL | 36 |
| Railroad Signalmen Local Lodge 138 | | Fredericksburg, VA | 36 |
| Railroad Signalmen Local Lodge 35 | | Eastlake, OH | 35 |
| Railroad Signalmen Local Lodge 58 | Victor Local | West Deptford, NJ | 35 |
| Railroad Signalmen Local Lodge 40 | | Saltsburg, PA | 35 |
| Railroad Signalmen Local Lodge 67 | | Lebanon, TN | 34 |
| Railroad Signalmen Local Lodge 65 | | Baltimore, MD | 33 |
| Railroad Signalmen Local Lodge 143 | Baltimore & Ohio Chicago Terminal R.r. | Darien, IL | 33 |
| Railroad Signalmen Local Lodge 80 | | Wynantskill, NY | 33 |
| Railroad Signalmen Local Lodge 158 | | Clinton, TN | 32 |
| Railroad Signalmen Local Lodge 216 | | Tiffin, OH | 31 |
| Railroad Signalmen Local Lodge 89 | | Jumping Branch, WV | 31 |
| Railroad Signalmen Local Lodge 86 | | Utica, NY | 30 |
| Railroad Signalmen Local Lodge 21 | | Independence, MO | 30 |
| Railroad Signalmen Local Lodge 179 | | Winnemucca, NV | 29 |
| Railroad Signalmen Local Lodge 198 | | Erwin, TN | 28 |
| Railroad Signalmen Local Lodge 26 | | Mohnton, PA | 27 |
| Railroad Signalmen Local Lodge 3 | | Northlake, IL | 26 |
| Railroad Signalmen Local Lodge 225 | | West Seneca, NY | 26 |
| Railroad Signalmen Local Lodge 71 | | Evansville, IN | 24 |
| Railroad Signalmen Local Lodge 11 | | Macon, GA | 22 |
| Railroad Signalmen Local Lodge 41 | Jesse Clark | Terre Haute, IN | 22 |
| Railroad Signalmen Local Lodge 25 | Brotherhood Of Railroad Signalmen | Mount Carmel, IL | 21 |
| Railroad Signalmen Local Lodge 148 | | Manakin Sabot, VA | 20 |
| Railroad Signalmen Local Lodge 91 | | Chalmers, IN | 20 |
| Railroad Signalmen Local Lodge 51 | | Princeton, KY | 19 |
| Railroad Signalmen Local Lodge 213 | | West Springfield, MA | 18 |
| Railroad Signalmen Local Lodge 75 | | Oneonta, NY | 18 |
| Railroad Signalmen Local Lodge 85 | | Front Royal, VA | 16 |
| Railroad Signalmen Local Lodge 64 | | Lexington, OH | 16 |
| Railroad Signalmen Local Lodge 147 | | Albany, NY | 16 |
| Railroad Signalmen Local Lodge 29 | | Manchester, IA | 16 |
| Railroad Signalmen Local Lodge 230 | | Highland, NY | 16 |
| Railroad Signalmen Local Lodge 34 | | Front Royal, VA | 15 |
| Railroad Signalmen Local Lodge 39 | | Warrens, WI | 14 |
| Railroad Signalmen Local Lodge 9 | | West Bend, WI | 14 |
| Railroad Signalmen Local Lodge 193 | | West Mifflin, PA | 12 |
| Railroad Signalmen Local Lodge 215 | | Irvine, KY | 12 |
| Railroad Signalmen Local Lodge 240 | | New York, NY | 11 |
| Railroad Signalmen Local Lodge 46 | | Glendale, KY | 10 |
| Railroad Signalmen Local Lodge 191 | | Dongola, IL | 10 |
| Railroad Signalmen Local Lodge 114 | | Laurel, MD | 9 |
| Railroad Signalmen Local Lodge 59 | | Mechanicsburg, PA | 8 |
| Railroad Signalmen Local Lodge 150 | | Carnegie, PA | 8 |
| Railroad Signalmen Local Lodge 134 | | Castanea, PA | 6 |
| Railroad Signalmen Local Lodge 15 | | Front Royal, VA | 6 |
| Railroad Signalmen Local Lodge 163 | | Front Royal, VA | 4 |
| Railroad Signalmen Local Lodge 7 | | Mt Prospect, IL | 0 |
| Railroad Signalmen Local Lodge 160 | | Mt Prospect, IL | 0 |
| Railroad Signalmen Local Lodge 49 | | Macon, GA | 0 |
| Railroad Signalmen Local Lodge 76 | | Mt Prospect, IL | 0 |
| Railroad Signalmen Local Lodge 130 | | Bellwood, IL | 0 |
| Railroad Signalmen Local Lodge 214 | | Mount Prospect, IL | 0 |
| Railroad Signalmen Local Lodge 63 | | Lock Haven, PA | 0 |
| Railroad Signalmen Local Lodge 45 | | Anderson, IN | 0 |
| Railroad Signalmen Local Lodge 233 | Arte | So Sf, CA | 0 |
| Railroad Signalmen General Committee 95 | Metro North | Mt Prospect, IL | 0 |
| Railroad Signalmen General Committee 102 | The Long Island General Committee | Babylon, NY | 0 |
