| Name | Address, Zip |
| Osage Aces Volleyball Club | 219 S 10th St, 50461-1554 |
| Osage Alano Society | 621 Main St, 50461-1307 |
| Cedar River Recreation & Fine Arts | 809 Sawyer Dr, 50461-1402 |
| Mitchell County Historic Preservation Association | Po Box 193, 50461-0193 |
| Mitchell County Concert Association | 309 S 8th St, 50461-1410 |
| Osage Fire Fighters Association | Po Box 161, 50461-0161 |
| Mitchell County Food Bank Corporation | Po Box 150, 50461-0150 |
| Feekes Veteran Benefit Fund | 2310 340th St, 50461-8504 |
| Osage Booster Club | Po Box 213, 50461-0213 |
| United States Bowling Congress Inc | 302 Main St, 50461-1123 |
| United States Bowling Congress Inc | 210 Lyndale Ave, 50461-2031 |
| Green Devils Care | 1479 380th St, 50461-8060 |
| Catholic Education Foundation Inc | 810 Lime Kiln Rd, 50461-8342 |
| Cedar Valley Seminary Foundation Inc | Po Box 334, 50461-0334 |
| Osage Community Chest | 628 Main St, 50461-1308 |
| |
| Rural Childrens Opportunity Foundation | 1105 N 7th St, 50461-1363 |
| Sacred Heart Church Osage Ia | 218 S 12th St, 50461-1725 |
| Visitation Church Stacyville Ia | 218 S 12th St, 50461-1725 |
| Community Sister City Organization Inc | 933 Chase St, 50461-1540 |
| Tops Club Inc | 3714 Kirkwood Ave, 50461-8234 |
| Little Devil Mat Club Inc | 2112 332nd St, 50461-8583 |
| Education Foundation Of The Osage Community Schools | 628 Main St, 50461-1308 |
| Iowa Trust For Local Conservation | Po Box 330, 50461-0330 |
| Iowa Trails Council Inc | 3662 River Rd, 50461-8005 |
| Mitchell County Memorial Hospital | 616 N 8th St, 50461-1456 |
| Mitchell County Mountain Goats | 1531 Main Street, 50461 |
| Mitchell County Economic | Po Box 306, 50461-0306 |
| Miracle Tree Of Mitchell County Inc | 810 Lime Kiln Rd, 50461-8342 |
| Mitchell County Memorial Foundation Inc | 616 N 8th St, 50461-1456 |
| Diamond Devils | 219 S 10th St, 50461-1554 |
| Habitat For Humanity International Inc | Po Box 102, 50461-0102 |
| Room For Me | Po Box 14, 50461-0014 |
| Warmth For Humanity Project | 2313 385th St, 50461-8385 |
| Mary Lou Salisbury Foundation | Po Box 360, 50461-0360 |
| Precisionnaires Foundation | 3507 Golf Course Rd, 50461-8584 |
| Mcs Foundation Inc | 621 Chestnut St, 50461-1333 |
| Midwest Gospel Ministries | 1103 Main St, 50461-1730 |
| Myteam Triumph Inc | 614 Main St, 50461-1308 |
| Running With Ryan Inc | 729 Main St, 50461-1446 |
| Shop On State Inc | Po Box 27, 50461-0027 |
| Safe Ride Of Osage Inc | 1227 Chase St, 50461-1814 |
| Osage Parent Teacher Organization | 515 Chase St, 50461-1214 |
| Our Saviours Squadron | 218 W Main St, 50461-1043 |
| Shared Table | 621 Main St, 50461-1307 |
| |