| Other organizations in New York |
| Id | Name | Address | State | Established | Total Income |
| 1 | Nassau County Medical Center Auxiliary Inc | 2201 Hempstead Tpke, East Meadow, NY 11554-1859 | NY | 1966-05 | $148,683 |
| 2 | Nassau County Medical Society Alliance Inc | 1200 Stewart Ave, Garden City, NY 11530-4832 | NY | 1980-11 | $13 |
| 3 | Nassau County Medical Society Inc | 1200 Stewart Ave, Garden City, NY 11530-4832 | NY | 1936-06 | $327,960 |
| 4 | Nassau County Municipal Police Chiefs Assoc Inc | 349 Stewart Ave, Garden City, NY 11530-4529 | NY | 2001-12 | $37,048 |
| 5 | Nassau County Police Activity League Inc | 167 Broadway Route 107, Hicksville, NY 11801-4233 | NY | 1945-07 | $4,646,215 |
| 6 | Nassau County Police Reserve Association Scholarship Fund Inc | 398 Willis Ave, Mineola, NY 11501-1819 | NY | 1986-11 | $159,925 |
| 7 | Nassau County School Cooperative Workers Compensation Self Insrd Tr | 4 Tanager Ln, Northport, NY 11768-3338 | NY | 1990-01 | $5,911,712 |
| 8 | Nassau County Sherrifs Emerald Society Inc | PO BOX 2, East Meadow, NY 11554-0002 | NY | 2002-04 | $36,345 |
| 9 | Nassau County Society Of Pathologists Inc | 222 Station Plaza North Suite 620, Mineola, NY 11501 | NY | 1975-07 | $0 |
| 10 | Nassau County Society Prevention Of Cruelty To Animals Inc | PO BOX 436, Woodmere, NY 11598 | NY | 1974-03 | $0 |
| 11 | Nassau County Sports Commission | 1055 Stewart Ave, Bethpage, NY 11714-3596 | NY | 1993-07 | $62,830 |
| 12 | Nassau County Track Coaches Assoc Inc | 730 Boelsen Dr, Westbury, NY 11590-5941 | NY | 2006-12 | $96,946 |
| 13 | Nassau County Veterans Monument Fund Inc | PO BOX 7911, Hicksville, NY 11802-7911 | NY | 1992-09 | $54,379 |
| 14 | Nassau County Village Officials Association | PO BOX 484, New Hyde Park, NY 11040-0484 | NY | 1964-10 | $133,980 |
| 15 | Nassau Cultural Center Inc | 574 E Meadow Ave, East Meadow, NY 11554-5032 | NY | 1961-05 | $70,234 |
| 16 | Nassau Electric League Inc | 881 Prospect Ave, Westbury, NY 11590-3844 | NY | 1965-04 | $65,684 |
| 17 | Nassau Emerald Society Inc | PO BOX 7696, Hicksville, NY 11802-7696 | NY | 2001-11 | $69,883 |
| 18 | Nassau Free Library | PO BOX 436, Nassau, NY 12123-0436 | NY | 1973-01 | $122,604 |
| 19 | Nassau Land Trust Incorporated | 2417 Jericho Turnpike Box 280, Garden City Park, NY 11040-4710 | NY | 2002-06 | $102,078 |
| 20 | Nassau Lawyers Association Of Long Island | 100 Jericho Quad Ste 225, Jeriho, NY 11753-2702 | NY | 1971-02 | $75,329 |
| 21 | Nassau Library System | Trust And Agency Fund, Uniondale, NY 11553 | NY | 1978-11 | $6,233,722 |
| 22 | Nassau Life Underwriters Assoc Inc | 7 Merrick Rd # 337, Lynbrook, NY 11563-2713 | NY | 1973-04 | $161,029 |
| 23 | Nassau Music Educators Association | PO BOX 7689, Hicksville, NY 11802-7689 | NY | 1970-12 | $345,890 |
| 24 | Nassau Nursery Association Inc | 39 Celeste Dr, Rensselaer, NY 12144-4431 | NY | 1970-03 | $64,494 |
| 25 | Nassau Pediatric Society Inc | 1 Stonehenge Rd, Great Neck, NY 11023-1007 | NY | 1987-11 | $33,689 |
| 26 | Nassau Performing Arts Inc | 635 Southern Pkwy, Uniondale, NY 11553-2816 | NY | 2005-08 | $1,400 |
| 27 | Nassau Physicians Foundation Ltd | 325 Nerrick Ave, East Meadow, NY 11554 | NY | 2005-02 | $82,459 |
| 28 | Nassau Placement Network Inc | 50 Clinton St, Hempstead, NY 11550-4281 | NY | 1992-09 | $2,040 |
| 29 | Nassau Point Property Owners Asso Inc | PO BOX 346, Cutchogue, NY 11935-0346 | NY | 1955-10 | $35,014 |
| 30 | Nassau Police Conference Inc | PO BOX 490, Lynbrook, NY 11563-0490 | NY | 1959-05 | $429,486 |
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