| Name | Address, Zip |
| Abundant Faith Ministries | Po Box 181, 58249-0181 |
| Ancient Free & Accepted Masons Of N D | Po Box 334, 58249-0334 |
| Ancient & Accepted Scottish Rite Of Free Masonry So Juris Usa | Po Box 507, 58249-0507 |
| St Alphonsus School Foundation | 908 3rd St, 58249-2413 |
| American Legion Auxiliary | 216 12th Ave, 58249-2452 |
| American Legion | Po Box 483, 58249-0483 |
| Catholic Daughters Of The Americas | 1420 11th St, 58249-2008 |
| Howard And Lois Crummy Educational Trust | 908 3rd St, 58249-2413 |
| Cavalier County Search And Rescue | Po Box 335, 58249-0335 |
| Langdon Area Senior Citizens Inc | 211 8th Ave, 58249-2637 |
| Langdon Area Hockey Boosters | Po Box 416, 58249-0416 |
| Langdon Area Baseball Inc | 10339 Highway 5, 58249-9010 |
| Northern Lights Arts Council Inc | 714 3rd St, 58249-2624 |
| Prairie Winds & Pioneer Power Assoc | 10349 Highway 5, 58249-9010 |
| Little Star Theater Association Milton Nd | 1324 9th St, 58249-2126 |
| |
| North Dakota Dental Hygienists Association Inc | 1914 10th St, 58249-1505 |
| Cavalier County Peace Officers Association | 901 3rd St, 58249-2457 |
| The Northeast Snowmobile Club Association | 9341 103rd Ave Ne, 58249-9012 |
| Lebanon Cemetary Association | Po Box 221, 58249-0221 |
| Cavalier County Memorial Hospital Association | 909 2nd St, 58249-2407 |
| Cavalier County Farm Bureau | 1211 11th St, 58249-2003 |
| Cavalier County Cancer Crusaders Inc | 10123 95th St Ne, 58249-9021 |
| Maple Manor Care Center | 1116 9th Ave, 58249-1904 |
| Langdon Day Care Center Inc | 1215 7th St, 58249-2104 |
| Our Lady Of Mount Carmel Church Of Mount Carmel | Po Box 640, 58249-0640 |
| Cavalier Rural Electric Cooperative Inc | Po Box 749, 58249-0749 |
| Cavalier County Gun Club | Po Box 430, 58249-0430 |
| Cavalier County Memorial Hospital Foundation | 909 2nd St, 58249-2407 |
| Cavalier County Senior Meals & Services | 211 8th Ave, 58249-2637 |
| Cavalier County Emergency Food Pantry Inc | Po Box 630, 58249-0630 |
| Langdon Chamber Of Commerce | Po Box 348, 58249-0348 |
| Redeemer Lutheran Church | Po Box 526, 58249-0526 |
| Emmanuel Evangelical Church | 1120 15th Ave, 58249-2023 |
| Emmanuel Evangelical Church | Langdon Nd 58249, 58249 |
| United Lutheran Church | 1216 9th Ave, 58249-1906 |
| Danketsu Shotokan Karate Club | 1211 5th St, 58249-2216 |
| Tops Club Inc | 9451 107th Ave Ne, 58249-9102 |
| Langdon Curling Club | 11681 99th St Ne, 58249-8938 |
| Langdon Country Club | Po Box 190, 58249-0190 |
| Knights Of Columbus | 9341 103rd Ave Ne, 58249-9012 |
| Knights Of Columbus | 9341 103rd Ave Ne, 58249-9012 |
| Masonic Holding Corporation Of Langdon | Po Box 430, 58249-0430 |
| Preservation North Dakota | 923 17th Ave, 58249-1550 |
| Langdon Fire Department | Po Box 336, 58249-0336 |
| Wales Fire Department | 118 15th Ave, 58249-2237 |
| Langdon School District Foundation | 715 14th Ave, 58249-2147 |
| Fraternal Order Of Eagles | 723 3rd St, 58249-2623 |
| Fraternal Order Of Eagles | Po Box 491, 58249-0491 |
| United Telephone Educational Foundation Inc | Po Box 729, 58249-0729 |
| Elizabeth Granlund Hackerscholarship Fund | 1123 16th Ave, 58249-1521 |
| New Hope Fellowship | Po Box 388, 58249-0388 |
| Memorial Preservation Society Incorporated | 813 9th Ave, 58249-2328 |
| Run Langdon | 1309 10th St, 58249-2131 |
| |