| Other organizations in Ohio |
| Id | Name | Address | State | Established | Total Income |
| 1 | Ohio Womans Christian Temperance Union Clarksburg | 10261 Egypt Pike, Clarksburg, OH 43115-9711 | OH | 1966-01 | $0 |
| 2 | Ohio Womans Christian Temperance Union-Springfield | 4004 Sintz Rd, Springfield, OH 45504-3810 | OH | 1966-01 | $0 |
| 3 | Ohioans Helping Injured Ohioans | PO BOX 1729, Warren, OH 44482-1729 | OH | 1997-01 | $0 |
| 4 | Olde Southside Community Partnership | Po Box 07684, Columbus, OH 43207 | OH | 1995-04 | $0 |
| 5 | Omicron Delta Epsilon Intl Honor Society In Economics Inc | 930 College Mall Morgan Hall, Wooster, OH 44691 | OH | 1974-01 | $0 |
| 6 | On Angels Wings Riding Center | 710 St Rt 170, East Palestine, OH 44413 | OH | 2002-05 | $0 |
| 7 | Oncology Nursing Society, Oncology Nursing Society Toledo Area Chapter | 2264 Cedarwood Drive, Maumee, OH 43537 | OH | 1981-09 | $0 |
| 8 | One In Four Club | 5725 Glasgow Rd, Sylvania, OH 43560-1407 | OH | 1982-12 | $0 |
| 9 | One World Inc | 2344 Canal Rd, Cleveland, OH 44113-2535 | OH | 1999-01 | $0 |
| 10 | Open Bible Standard Churches, Way Of The Cross | 612 Beatrice Dr, Dayton, OH 45404-1411 | OH | 1971-09 | $0 |
| 11 | Open House Cincinnati | 3240 South Cove Court, Maineville, OH 45039 | OH | | $0 |
| 12 | Operation Hope Of Alliance | 730 Nome Avenue, Akron, OH 44320 | OH | 1997-03 | $0 |
| 13 | Opportunities For The Arts In Illinois Inc | PO BOX 2572, Columbus, OH 43216-2572 | OH | 1990-11 | $0 |
| 14 | Optimist International, 24185 Franklin Oh | 570 Alvin Ct, Franklin, OH 45005-2001 | OH | 1958-07 | $0 |
| 15 | Optimist International, Beavercreek-Fairborn Optimist Club # 24008 | 1825 Langview Drive, Fairborn, OH 45324 | OH | 1958-07 | $0 |
| 16 | Optimist International, Fostoria Area Optimist Club | Pobox 464, Fostoria, OH 44830 | OH | 1958-07 | $0 |
| 17 | Optimist International, New Carlisle Breakfast Optimist Club Inc | P O Box 162, New Carlisle, OH 45344 | OH | 1958-07 | $0 |
| 18 | Optimist International, Optimist Club Of Wilmington | PO BOX 453, Wilmington, OH 45177 | OH | 1958-07 | $0 |
| 19 | Order O Symposiarchs Of America- Marion | 704 Vernon Hts Blvd, Marion, OH 43302 | OH | 1982-05 | $0 |
| 20 | Order Of The Alhambra, Al Jana Caravan #159 | 2323 North Ave, Parma, OH 44134 | OH | 1972-09 | $0 |
Organization representatives - add corrected or new information about Open House Cincinnati »
Non-representatives - add comments about Open House Cincinnati»