| Other organizations in Maryland |
| Id | Name | Address | State | Established | Total Income |
| 1 | Nternational Ministry Of Praise And Worship | 20300 Brookrun Pl, Germantown, MD 20876 | MD | 2012-09 | $0 |
| 2 | Nutribee National Nutrition Competition Inc | 198 Prince George Street, Annapolis, MD 21401 | MD | 2013-03 | $0 |
| 3 | Oak Hill Cemetary Trust | 32 Allegany St, Lonaconing, MD 21539 | MD | 2013-06 | $0 |
| 4 | Oakdale Hockey Club Inc | 7805 Lythan Pl, Ijamsville, MD 21754 | MD | 2011-09 | $0 |
| 5 | Ocean Ana Rising Incorporated | 3206 Dunwood Ridge Terrace, Bowie, MD 20712 | MD | 2006-11 | $0 |
| 6 | Ocean City Friends Of The Library Inc | 10003 Coastal Hwy, Ocean City, MD 21842 | MD | 1987-04 | $0 |
| 7 | Ocean City Waterfowl Inc | PO BOX 13, Ocean City, MD 21843 | MD | 2012-01 | $0 |
| 8 | Ocean Pines Childrens Theater | PO BOX 1566, Ocean Pines, MD 21811 | MD | 2000-04 | $0 |
| 9 | Ocy Inc | 1002 Scotts Hill Drive, Baltimore, MD 21208 | MD | 1989-09 | $0 |
| 10 | Off Street Sports Performance Inc | 709 Buckingham Circle, Salisbury, MD 21804 | MD | 2012-06 | $0 |
| 11 | Ogazi Peace Foundation | PO BOX 61332, Potomac, MD 20859 | MD | 2012-05 | $0 |
| 12 | Oguaa Akoto Association | Po Box 843, Lanham, MD 20703 | MD | 2013-04 | $0 |
| 13 | Okeer Gaa Community Support Inc | 5528 Tracey Bruce Dr, Adamstown, MD 21710-8914 | MD | 2011-10 | $0 |
| 14 | Old Harford Town Maritime Center Inc | 146 Cornfield Road, Pasadena, MD 21122 | MD | 1993-08 | $0 |
| 15 | Old Makeni Franciscans Association | 17015 Indian Grass Drive, Germantown, MD 20874 | MD | 2007-08 | $0 |
| 16 | Old Mill Youth Association Inc | 7670 Old Telegraph Road, Severn, MD 21144 | MD | 2012-04 | $0 |
| 17 | Old St Anns Cemetery Fund Inc | PO BOX 733, Grantsville, MD 21536 | MD | 1989-03 | $0 |
| 18 | Old-Growth Forest Network | 4701 Whitehaven Rd, Quantico, MD 21856-2129 | MD | 2013-01 | $74,411 |
| 19 | Oldtown Community Center Inc | Po Box 1, Oldtown, MD 21555 | MD | 2002-06 | $0 |
| 20 | Olive Tree Inc | 33 Hebb Road, Hagerstown, MD 21740 | MD | 2011-10 | $0 |
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