| Name | Address, Zip |
| Plattsmouth Baseball Parents Association | Po Box 371, 68048-0371 |
| Plattsmouth Band Parents Association | 1604 Hill St, 68048-2335 |
| Plattsmouth Volunteer Firefighters Association | Po Box 326, 68048-0326 |
| Historic Downtown Plattsmouth Association | Po Box 506, 68048-0506 |
| Plattsmouth Junior Youth Association | Po Box 181, 68048-0181 |
| Athletic Club O | 1514 James St, 68048-2437 |
| Plattsmouth Youth Basketball | 1623 Goldenrod Cir, 68048-5681 |
| Bellevue Offutt Homeschool Group | 413 N 7th St, 68048-1313 |
| Boots & Suits United Inc | 19701 Shoreline Cir, 68048-8017 |
| Second Chance Bouquets | 831 Wedgewood Ct, 68048-8027 |
| Friends Of Cass County Casa Program | 346 Main St, 68048-1957 |
| Cass Countys Lighthouse For Change Inc | Po Box 297, 68048-0297 |
| Cass County Historical Society Foundation | 646 Main St, 68048-1852 |
| City Of Plattsmouth Facilities Corporation | 136 N 5th Street, 68048-1974 |
| Plattsmouth Wrestling Club | 13617 S 9th Ave, 68048-7303 |
| Plattsmouth Soccer Club | Po Box 43, 68048-0043 |
| Rudi Patudi & Pawprint Comfort Dog Therapy Inc | 5376 Ranch Rd, 68048-7596 |
| Plattsmouth Conservancy Inc | 15112 Ridgeview Dr, 68048-8502 |
| Exective Services Corps-nebraska Inc | 727 S 9th St, 68048-2028 |
| Plattsmouth Education Foundation | Po Box 283, 68048-0283 |
| Plattsmouth Elementary School Pto Inc | 1724 8th Ave, 68048-2359 |
| Lifestyle Innovations For Epilepsy Inc | 19521 Lakeside Cir, 68048-8025 |
| Nobility Farm Ministries | 710 Lincoln Ave, 68048-2151 |
| Nebraska Masonic Home Foundation | 1300 Avenue D, 68048-1055 |
| Plattsmouth Public Library Foundation | 8320 Ashland Rd, 68048 |
| Kruger Foundation Inc | 21018 Treasure Island Rd, 68048-7168 |
| Friends Of The Plattsmouth Public Library | 401 Avenue A, 68048-1946 |
| Happy Paws Nonprofit | 107 S 8th St, 68048-1843 |
| Under His Wings | 511 Main St, 68048-1963 |
| Nebraska Masonic Home | 1300 D, 68048 |
| Operation Rolling Rudolph Inc | 820 7th Ave, 68048-2015 |
| Teammates Mentoring Program | 1912 E Highway 34, 68048-5676 |
| Riptide Monitoring Services | 18732 Webster Blvd, 68048-8945 |
| Salts Social Solutions | 17740 Pioneer Trl, 68048-7289 |
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