| Name | Address, Zip |
| Mason City Community School District 7-12 Pto | 1700 4th St Se, 50401-4409 |
| Daughters Of Union Veterans Of The Civil War 1861-1865 | 433 28th St Sw, 50401-6415 |
| 4th Texas Regiment Reenacting Association Inc | 777 S Eisenhower Ave Trlr 87, 50401-1571 |
| Experimental Aircraft Association Chapter 94 Inc | 3385 Saratoga Ct, 50401-4567 |
| Mason City Little League Inc D B A Mason City Youth Baseball | Po Box 1031, 50402-1031 |
| Ace Mentor Program Of America Inc | 1700 4th St Se, 50401-4409 |
| North Iowa Community Action Organization | Po Box 1627, 50402-1627 |
| Community Policing Advisory Board | 78 S Georgia Ave, 50401-3928 |
| Elderbridge Agency On Aging | 1190 Briarstone Dr Ste 3, 50401-4690 |
| Aging Services Coalition Of North Iowa | 103 E State St Ste 800, 50401-3334 |
| Agva Foundation | 2009 4th St Sw Ste 1, 50401-4636 |
| North Iowa Mutual Aid | Po Box 892, 50402-0892 |
| Airborne Search And Rescue | 4 Woodshire Ln Ne, 50401-1460 |
| Al Yad | 715 6th St Sw, 50401-4903 |
| Alano Society Inc Of Mason City Iowa | 207 8th Pl Se, 50401-5801 |
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| E R Keig And Alice Keig Scholarship Trust | Po Box 1567, 50402-1567 |
| North Iowa Alliance For The Mentally Ill | Po Box 85, 50402-0085 |
| Elderbridge Alliance | 22 N Georgia Ave Ste 216, 50401-3435 |
| Northern Lights Alliance For The Homeless Inc | 307 N Monroe Ave, 50401-3023 |
| National Alliance On Mental Illness Of North Iowa | Po Box 1486, 50402-1486 |
| Society For Preservation & Encrgmnt Of Barbershop Quartet Singing Amer | 141 25th St Sw, 50401-6609 |
| American Womens Self Defense Association | Po Box 1533, 50402-1533 |
| National Society Of The Daughters Of The American Revolution | 1510 S Kentucky Ave, 50401-6953 |
| Parents Families And Friends Of Lesbians And Gays North Iowa | Po Box 301, 50402-0301 |
| Iowa Odd Fellows And Orphans Home | 1037 19th St Sw, 50401-6436 |
| Arc Of Iowa | Po Box 168, 50402-0168 |
| Macnider Art Museum Foundation | 303 2nd St Se, 50401-3925 |
| North Iowa Fair Association | 3700 4th St Sw, 50401-1590 |
| Young Mens Christian Association | 1840 S Monroe Ave, 50401-5681 |
| Mason City Youth Hockey Association Inc | Po Box 311, 50402-0311 |
| North Iowa Volleyball Association | 930 N Jefferson Ave, 50401-2030 |
| Down Syndrome Association Of North Central Iowa | Po Box 4, 50402-0004 |
| Mason City Veterans Memorial Association | 539 8th St Se, 50401-5162 |
| Mason City Youth Football Association | 73 N Yorktown Pike, 50401-4512 |
| Charles B & Vivian Kelly Charitable Tr | 100 E State St, 50401-3306 |
| North Iowa Band Festival Foundation | 9 N Federal Ave, 50401-3250 |
| Hawkeye Harvest Food Bank Corporation | Po Box 1565, 50402-1565 |
| Beasley Family Foundation Inc | 2265 Timber Creek Ct, 50401-8923 |
| Donald J Beck Trust | 2601 4th St Sw, 50401-4650 |
| Bella Center | 1050 Fair Meadow Dr, 50401-7128 |
| Bertha Stebens Childrens Theatre Foundation | 616 N Delaware Ave, 50401-7014 |
| Beth E Reinhart Charitable Trust | Po Box 894, 50402-0894 |
| Rudd Community Betterment Corporation | Po Box 1567, 50402-1567 |
| North East Iowa Local Workforce Development Board | 600 S Pierce Ave, 50401-4836 |
| Mason City Mohawk Booster Club | 200 N Adams Ave, 50401-3120 |
| Mason City Schools Instrumental Music Boosters Foundation | Po Box 111, 50402-0111 |
| United States Bowling Congress Inc | Po Box 450, 50402-0450 |
| Charlie Brown Community Day Care Center | 1780 S Monroe Ave, 50401-5674 |
| M C C Health Education | 250 S Crescent Dr, 50401-2926 |
| Camp Tanglefoot Inc | 301 Willowbrook Dr, 50401-1724 |
| Stomping Out Childhood Cancer | 742 15th St Ne, 50401-1369 |
| Cerro Gordo County Free Health Care Clinic Inc | Po Box 1261, 50402-1261 |
| Caring Pregnancy Center | 830 15th St Sw Ste 1, 50401-5611 |
| Mamas En Catacamas | 206 S Tennessee Pl, 50401-4309 |
| Newman Catholic School System | 2445 19th St Sw, 50401-6234 |
| North Iowa Transition Center Inc | 408 1st St Nw, 50401-3004 |
| Mercy Medical Center Foundation North Iowa | 1000 4th St Sw, 50401-2800 |
| Senior Citizens Center | 326 4th Street Ne, 50401-3572 |
| Good Shepherd Geriatric Center Inc | Po Box 1707, 50402-1707 |
| Niad Center For Human Development | Po Box 656, 50402-0656 |
| North Central Iowa Genealogical Society | Po Box 237, 50402-0237 |
| United Way Of North Central Iowa | 520 S Pierce Ave Ste 204, 50401-2751 |
| Crime Stoppers Of Cerro Gordo County | Po Box 911, 50402-0911 |
| Cerro Gordo Trails Inc | 2130 Country Club Dr, 50401-7322 |
| Cft Foundation | 5 Arrowwood, 50401-2524 |
| North Star Charitable Tr | 1306 N Hampshire Pl, 50401-1343 |
| Heft Education Fund Charitable Trust | 2135 Augusta Dr, 50401-7329 |
| Stuart D Nevermann Charitable Trust | 2601 4th St Sw, 50401-4650 |
| First Citizens Charitable Foundation Inc | Po Box 1708, 50402-1708 |
| David & Phyllis Murphy Charitable Foundation | 103 E State St Ste 800, 50401-3334 |
| Laverna M Smedley Charitable Foundation | 2601 4th St Sw, 50401-4650 |
| Christmas Cheer Fund Inc | Po Box 271, 50402-0271 |
| Choral Music Guild Inc | 1700 4th St Se, 50401-4409 |
| The Christian Fellowship | 1181 15th St Sw, 50401-5647 |
| Epiphany Parish Mason City Iowa | 302 5th St Se, 50401-4005 |
| River City Sculptures On Parade Inc | 9 N Federal Ave, 50401-3250 |
| Mason City Public Library Foundation Inc | 225 2nd St Se, 50401-3900 |
| Mason City Soccer Club | 211 N Delaware Ave, 50401-3323 |
| Friends Of The Library Mason City | 225 2nd St Se, 50401-3900 |
| Meals On Wheels Of Mason City Inc | 606 N Monroe Ave, 50401-1936 |
| Education Foundation Of The Mason City Public Schools | 1700 4th St Se, 50401-4409 |
| Mohawk Danzers Mason City | 20614 265th St, 50401-9086 |
| Mason City Foundation | 308 S Pennsylvania Ave, 50401-3913 |
| River City Society For Historic Preservation | Po Box 565, 50402-0565 |
| North Iowa Figure Skating Club | 100 S Federal Southbridge Mall, 50401 |
| Riverhawk Wrestling Club | 1014 N Jackson Ave, 50401-1934 |
| Collaborative Summer Library Program | 953 6th Pl Se, 50401-5261 |
| North Iowa Long Term Disaster Recovery Committee | 2716 S Federal Ave, 50401-6741 |
| Ventura Community School District Foundation | Po Box 1567, 50402-1567 |
| North Iowa Community Emergency Response Team Llc | 2716 S Federal Ave, 50401-6741 |
| Community Education Foundation | 13 N Federal Ave, 50401-3250 |
| Community Kitchen Of North Iowa | 606 N Monroe Ave, 50401-1936 |
| Harding Elementary Parent Teacher Organization | 1239 N Rhode Island Ave, 50401-1441 |
| Roosevelt Elementary School Parent Teacher Organization | 313 15th St Se, 50401-5927 |
| Lee Endowment Foundation | Po Box 1708, 50402-1708 |
| Farrer Endowment Foundation | Po Box 1567, 50402-1567 |
| Tomson Fam Foundation Tr | 2601 4th St Sw, 50401-4650 |
| Full Gospel Fellowship | Po Box 123, 50402-0123 |
| Field Memorial Scholarship Trust | 100 E State St, 50401-3306 |
| Teachers For Students | 510 9th St Se, 50401-5810 |
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