| Name | Address, Zip |
| 2nd Chance Inc | 11 West Main Street, 11901-2822 |
| 4 Petes Sake Inc | 81 Beach Rd, 11901-5818 |
| Meridian Triangle 71 | 146 Roanoke Avenue, 11901 |
| Bridge Improving Access To Health Care Inc | 448 Griffing Ave, 11901-3012 |
| New Horizons Affordable Housing Foundation Inc | Po Box 34, 11901-0011 |
| The African-american Educational And Cultural Festival Inc | Po Box 119, 11901-0101 |
| Aid To The Developmentally Disabled Inc | 901 E Main St Ste 508, 11901-2680 |
| Let There Be Aid Inc | 33 W 2nd St, 11901-2701 |
| Peconic River Community Development Alliance Inc | 108 Peconic Ave, 11901-3302 |
| Montauk Surfcasters Alliance Inc | 17 Sun Ct, 11901-5916 |
| Spay Alter Vaccinate Every Stray Inc | Po Box 1631, 11901-0604 |
| Riverhead Volunteer Ambulance Corps Inc | Po Box 924, 11901-0911 |
| Vets First America Inc | 165 Oliver St, 11901-6216 |
| Forget Me Not Of America Inc | 526 Sound Shore Rd, 11901-5312 |
| Housing America Foundation | 19 Seacove Ct, 11901-5939 |
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| Italian American Families And Sports Together Corporation | 406 Fishel Avenue Ext, 11901-4711 |
| Long Island Authors And Writers Society | 46 Riverside Dr, 11901-2415 |
| Community Center For Blind And Sighted | 126 Sunrise Ave, 11901-2351 |
| St Rita And Archangel Metatron Arts League Ltd | 1661 Old Country Rd Unit 307, 11901-4413 |
| Discoveries East End Learning And Mentorship Center | 608 Northville Tpke, 11901-4717 |
| Hope And Resilience Long Island Inc | Po Box 1185, 11901-0107 |
| Flanders Riverside And Northampton Community Association Inc | Po Box 602, 11901-0603 |
| United Pet And Scholarship Fund | Po Box 1448, 11901-0048 |
| Gertrude And Leonard Mccombe Foundaiton | 4414 Sound Ave, 11901-1207 |
| Riverhead Foundation For Marine Research And Preservation | 467 E Main St, 11901-2556 |
| Riverhead Faculty And Community Theatre Inc | Po Box 1871, 11901-0963 |
| Heidis Helping Angels | Po Box 911, 11901-0911 |
| Betty Ann Hartman Foundation Inc | Po Box 1687, 11901-0708 |
| Long Island Antique Power Association | Po Box 1134, 11901-0901 |
| Aram Square Club Inc | Po Box 857, 11901-0801 |
| Vision Ministries Open Arms Inc | 1661 Old Co Rd Unit 364, 11901 |
| Open Arms Care Center Inc | 1018 Northville Tpke, 11901-1719 |
| Student Government Assist Inc | 3803 Amen Cor, 11901-1944 |
| Long Island District Of New York State Assoc Of Fam & Consumer Scie | 2406 Cedar Path, 11901-7235 |
| Riverhead Business Improvement District Management Assoc Inc | 4 W 2nd St, 11901-2702 |
| East End Disability Associates Inc | 107 Roanoke Ave, 11901-2700 |
| Riverhead Volunteer Firefighters Association Inc | 540 Roanoke Ave, 11901-2726 |
| East End Counselors Association Inc | Po Box 1357, 11901-0951 |
| Riverhead Athletic Club Inc | Po Box 1916, 11901-0969 |
| Riverhead Community Awareness Program Inc | 518 E Main St Ste 106, 11901-2529 |
| Peconic Ballet Foundation Inc | 71 E Main St, 11901-2422 |
| Little League Baseball Inc | Po Box 743, 11901-0709 |
| Peconic Bay Health System Inc | 1300 Roanoke Ave, 11901-2031 |
| The Friends Of The Big Duck Inc | 75 Elm Ave, 11901-4051 |
| Bonafide Saints New York Law Enforcement Motorcycle Club | 117 Old Farm Rd, 11901-6613 |
| Born Free Pet Shelter Inc | 12 Tall Tree Cir, 11901-5630 |
| North Fork Breast Health Coalition Inc | 185 Old Country Rd Ste 6, 11901-2121 |
| Butterfly Effect Project Inc | 1146 Main Rd, 11901-5728 |
| Double C Family Foundation | 552 E Main St, 11901-2669 |
| Timothy Hill Christian Camp Inc | 298 Middle Rd, 11901-2034 |
| St Davids Child Care Center Inc | 573 Roanoke Ave, 11901-2760 |
| Child Development& Learning Center Inc | 1018 Northville Tpke, 11901-1719 |
| Family Community Life Center Inc | 1018 Northville Tpke, 11901-1719 |
| Central Suffolk Hospital Foundation | 1 Heroes Way, 11901-2054 |
| Rimantas Kaukenas Charitable Foundation Inc | Po Box 83, 11901-0012 |
| Ravenswood Charitable Foundation | 552 E Main St, 11901-2669 |
| Whr Charities Inc | Co 552 East Main Street, 11901 |
| Riverhead Rotary Charities Inc | Po Box 518, 11901-0503 |
| Timothy Hill Childrens Ranch Inc | 298 Middle Rd, 11901-2034 |
| New Hope Covenant Church Inc | 40 Peconic Ave Apt 414, 11901-3317 |
| Twin Forks Professional Womens Circle Inc | 209 W Main St 201, 11901-2828 |
| Riverhead Lacrosse Club Inc | Po Box 1393, 11901-0405 |
| Wildwood Warriors Triathlon Club | 32 Constable Dr, 11901-5200 |
| River Head Garden Club | Po Box 1664, 11901-0960 |
| Coastal Reserve Corp | 1212 Flanders Rd, 11901-3868 |
| Peconic United Methodist Housing Development Fund Company Inc | 1 Aldersgate, 11901-1819 |
| North Fork Contemporary Inc | 535 Manor Ln, 11901-5628 |
| Corey Foundation | 2 Waterview Ct, 11901-6312 |
| Cuttica Foundation Corp | 12 Whitebrook Dr, 11901-3922 |
| Voices For Veterans Corp | 52 Colonial Dr, 11901-5701 |
| Spirits Promise Equine Rescue Corp | 2746 Sound Ave, 11901-1113 |
| Suffolk County Historical Society | 300 W Main St, 11901-2804 |
| Iglesia Cristiana Emanuel Inc | 294 Rabbit Run, 11901-6602 |
| Dirt Dad Fund Inc | 59 Dune Dr, 11901-5642 |
| Robert David Lion Gardiner Foundation Inc | 30 W Main St Ste 309, 11901-2806 |
| Prosocial Design Network Inc | 118 Northern Pkwy, 11901-2651 |
| Fund For Reconciliation & Development | 64 Jean Ct, 11901-6304 |
| Friars Head Disaster Relief Fund | 3000 Sound Ave, 11901-1113 |
| Dms Dream Foundation | 80 West Main Street, 11901-2823 |
| Dr Lazarus Onwuka Medical Foundation Inc | 605 Roanoke Ave, 11901-2727 |
| I R I E Therapeutic Equestrian Program | Po Box 896, 11901-0896 |
| East End Womens Network Inc | Po Box 1227, 11901-0904 |
| Harvest East End Inc | Po Box 600, 11901-0600 |
| Indian Network Of Eastern Long Island Inc | 36 Osprey Avenue, 11901-7303 |
| National Institute For Special Education Inc | 6 Dolphin Way, 11901-6301 |
| Empire State Huskies Long Island Inc | 7 Pintail Ct, 11901-6343 |
| Imagine Special Equestrians Inc | 131 Ostrander Ave, 11901-4643 |
| Li Reapers Fastpitch Incorporated | 620 Duane St, 11901-2951 |
| Flanders Village Historical Society | Po Box 1968, 11901-0964 |
| Race For The Kids Foundation Inc | 96 Fox Run Ln, 11901-2355 |
| The Place For Learning Inc | 401 Tanger Mall Dr, 11901-6404 |
| Stars In The Forest Wildlife Rehabilitation Inc | 3980 Sound Ave, 11901-1223 |
| Gwen L Kosinski Foundation Inc | 318 Roanoke Ave, 11901-2723 |
| Roma M Karp Foundation Inc | 318 Roanoke Ave, 11901-2723 |
| Lt Michael P Murphy Usn Memorial Scholarship Foundation | 224 Griffen Ave, 11901 |
| Laurents Hatcher Foundation Inc | 552 E Main St, 11901-2669 |
| Friends Of The Riverhead Free Library Inc | Po Box 1341, 11901-0914 |
| Our Future Generation | Po Box 1751, 11901-0710 |
| Savant Garde Institute Ltd | Co Morpurgo 1145 Middle Road 4i, 11901 |
| Green Team | 333 Manor Ln, 11901-5607 |
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