| Other organizations in Louisiana |
| Id | Name | Address | State | Established | Total Income |
| 1 | Orion Education Corporation, Dba Orion College | PO BOX 1811, Mandeville, LA 70470-1811 | LA | 1998-01 | $1,435,478 |
| 2 | Orleans Club | 5005 Saint Charles Ave, New Orleans, LA 70115-4938 | LA | 1942-11 | $998,140 |
| 3 | Orleans Metropolitan Housing & Community Development Inc | 3313 S Saratoga St, New Orleans, LA 70115-5249 | LA | 1987-02 | $157,000 |
| 4 | Orleans Parish Medical Society | 1800 Canal St, New Orleans, LA 70112 | LA | 1958-02 | $109,246 |
| 5 | Orleans Parish Recovery Foundation | 1300 Perdido St Ste 8w03, New Orleans, LA 70112-2125 | LA | 2007-10 | $1,601,990 |
| 6 | Ormond Country Club | 10 Villere Dr, Destrehan, LA 70047-2503 | LA | 1978-11 | $970,778 |
| 7 | Orrin H Swayze Foundation For Advanced Finance Education Inc | 4229 Highland Rd, Baton Rouge, LA 70808-4541 | LA | 1994-05 | $51,101 |
| 8 | Oscar Lee Putnam Cultural Endowment | 701 Poydras St Ste 3640, New Orleans, LA 70139-7700 | LA | 1961-03 | $343,056 |
| 9 | Osprey Baseball Alumni Club | 13737 Earls Ct, Baton Rouge, LA 70810-3587 | LA | 1994-01 | $54,153 |
| 10 | Ouachita African-American Historical Society | PO BOX 9295, Monroe, LA 71211-9295 | LA | 1994-08 | $1,126,643 |
| 11 | Ouachita Christian Schools Inc | 7065 Highway 165 N, Monroe, LA 71203-9776 | LA | 1974-10 | $4,842,896 |
| 12 | Ouachita Community Enhancement Zone | 1811 Jackson St, Monroe, LA 71202-2529 | LA | 1997-06 | $3,940 |
| 13 | Ouachita Council On Aging | PO BOX 7418, Monroe, LA 71211-7418 | LA | 1970-04 | $1,705,647 |
| 14 | Ouachita Grand Plaza Inc | 300 Harrison St, Monroe, LA 71201-7441 | LA | 1985-07 | $715,864 |
| 15 | Ouachita High School Cheerleading Booster Club | 587 Mcgowen Rd, Monroe, LA 71203-9393 | LA | 1991-06 | $259,928 |
| 16 | Ouachita Medical Society | PO BOX 2884, Monroe, LA 71207-2884 | LA | | $76,217 |
| 17 | Ouachita Mountains Biological Station | PO BOX 5568, Shreveport, LA 71135-5568 | LA | 1999-07 | $37,214 |
| 18 | Ouachita Multi Purpose | 315 Plum St, Monroe, LA 71202-2605 | LA | 1967-03 | $8,475,618 |
| 19 | Ouachita Parish Farm Bureau | PO BOX 95004, Baton Rouge, LA 70895-9004 | LA | 1970-06 | $255,340 |
| 20 | Ouachita Parish High School Football Booster Club | 681 Highway 594, Monroe, LA 71203-8005 | LA | 2008-07 | $48,125 |
| 21 | Ouachita Parish School Dandylion Dance Drill Team Booster Club | 681 Highway 594, Monroe, LA 71203-8005 | LA | 2006-12 | $29,551 |
| 22 | Ouachita River Art Guild | 308 Trenton St, W Monroe, LA 71291 | LA | 1993-01 | $0 |
| 23 | Ouachita Valley Chapter Inc & Natl Electrical Contractors Assoc Inc | PO BOX 2333, Monroe, LA 71207-2333 | LA | 1965-11 | $155,087 |
| 24 | Ouachita Valley Dog Training Club | PO BOX 2432, W Monroe, LA 71294-2432 | LA | 1991-08 | $87,847 |
| 25 | Our Children Day Care And Learning Center | 1405 Copp St, Jeanerette, LA 70544-5507 | LA | 1999-10 | $65,630 |
| 26 | Our Courthouse Llc, Hudnall Debbie Mbr | PO BOX 599, Clinton, LA 70722-0599 | LA | 2008-02 | $91,816 |
| 27 | Our Daily Bread Of Tangipahoa | 509 S Chestnut St, Hammond, LA 70403-4301 | LA | 1999-08 | $309,884 |
| 28 | Our House Inc | PO BOX 7496, Monroe, LA 71211-7496 | LA | 1995-05 | $722,707 |
| 29 | Our Inheritance Ministries Inc | 1424 Magnolia Rdg, Bossier City, LA 71112-5042 | LA | 2006-04 | $51,671 |
| 30 | Our Lady Of Fatima School Foundation | 2315 Johnston St, Lafayette, LA 70503-2753 | LA | 1971-06 | $486,823 |
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