| National Institute on Money in State PoliticsEIN 81-0526651 | Research and Public Policy | MT | $1,891,674Small | 94.78 |
| National Kidney Foundation of FloridaEIN 59-2190073 | Health | FL | $1,108,519Small | 90.41 |
| National Kidney Foundation of IllinoisEIN 36-6009226 | Health | IL | $1,622,137Small | 91.20 |
| National Kidney Foundation of MichiganEIN 38-1559941 | Health | MI | $6,685,661Mid-sized | 95.85 |
| National Low Income Housing CoalitionEIN 52-1089824 | Human and Civil Rights | DC | $3,160,313Small | 91.78 |
| National Math + Science InitiativeEIN 11-3769438 | Education | TX | $41,053,204Large | 92.02 |
| National Mill Dog RescueEIN 26-0574783 | Animals | CO | $1,522,010Small | 95.99 |
| National Minority AIDS CouncilEIN 52-1578289 | Health | DC | $5,714,211Mid-sized | 90.86 |
| National MPS SocietyEIN 11-2734849 | Health | NC | $2,012,286Small | 96.89 |
| National Network to End Domestic ViolenceEIN 52-1973408 | Human Services | DC | $4,157,632Mid-sized | 92.24 |
| National Organization for Rare DisordersEIN 13-3223946 | Health | CT | $32,990,742Large | 98.21 |
| National Park FoundationEIN 52-1086761 | Environment | DC | $70,306,163Large | 91.50 |
| National Pediatric Cancer FoundationEIN 59-3097333 | Health | FL | $3,129,381Small | 100.00 |
| National Psoriasis FoundationEIN 93-0571472 | Health | OR | $12,666,372Mid-sized | 91.32 |
| National Review InstituteEIN 13-3649537 | Arts, Culture, Humanities | NY | $5,238,791Mid-sized | 92.21 |
| National Sports Center for the DisabledEIN 84-0738419 | Human Services | CO | $3,250,946Small | 94.61 |
| National Tropical Botanical GardenEIN 52-6057064 | Environment | HI | $11,377,135Mid-sized | 92.74 |
| National Veterans FoundationEIN 95-3994750 | Human Services | CA | $1,016,799Small | 92.20 |
| National Women's Law CenterEIN 52-1213010 | Human and Civil Rights | DC | $10,596,393Mid-sized | 92.29 |
| Nativity Academy at Saint BonifaceEIN 51-0450314 | Education | KY | $1,419,132Small | 92.40 |
| Natural Resources Defense CouncilEIN 13-2654926 | Environment | NY | $128,772,908Large | 93.49 |
| Nature and Culture InternationalEIN 33-0773524 | Environment | CA | $6,361,508Mid-sized | 93.91 |
| Naval Aviation Museum FoundationEIN 59-6178237 | Arts, Culture, Humanities | FL | $9,371,160Mid-sized | 96.46 |
| Naval War College FoundationEIN 23-7063084 | Education | RI | $2,670,184Small | 90.42 |
| Navy SEAL FoundationEIN 31-1728910 | Human Services | VA | $15,895,708Large | 100.00 |
| Nazarene Compassionate Ministries, Inc.EIN 43-1550318 | International | KS | $3,518,777Mid-sized | 90.71 |
| NDI New MexicoEIN 85-0431846 | Education | NM | $6,160,996Mid-sized | 91.71 |
| NEADS Inc.EIN 23-7281887 | Animals | MA | $2,572,503Small | 94.27 |
| Near East FoundationEIN 13-1624114 | International | NY | $14,619,159Large | 91.16 |
| Nebraska Children and Families FoundationEIN 91-1829974 | Human Services | NE | $15,375,397Large | 91.65 |
| Nebraska Humane SocietyEIN 47-0378997 | Animals | NE | $12,005,552Mid-sized | 92.07 |
| Nebraska Humanities CouncilEIN 23-7359778 | Arts, Culture, Humanities | NE | $1,688,771Small | 90.32 |
| Nebraska Lutheran Outdoor MinistriesEIN 47-0488319 | Religion | NE | $3,093,769Small | 91.52 |
| Neighbor to NeighborEIN 06-6071605 | Human Services | CT | $1,911,914Small | 94.44 |
| Neighborhood ClubEIN 38-1387143 | Human Services | MI | $3,098,949Small | 90.58 |
| Neighborhood Health ClinicEIN 59-3546884 | Health | FL | $3,284,533Small | 96.79 |
| Neighborhood House, LouisvilleEIN 61-0445842 | Human Services | KY | $1,886,954Small | 92.17 |
| Neighborhood House, St. PaulEIN 41-0693916 | Human Services | MN | $6,187,531Mid-sized | 91.02 |
| NeighborsEIN 41-1360294 | Human Services | MN | $4,081,697Mid-sized | 90.63 |
| NEO PhilanthropyEIN 13-3191113 | Research and Public Policy | NY | $45,086,138Large | 92.16 |
| Nepal Youth FoundationEIN 68-0224596 | International | CA | $4,075,868Mid-sized | 96.32 |
| Netherland-America FoundationEIN 13-2989216 | International | NY | $4,436,195Mid-sized | 95.05 |
| NETWORK of Community MinistriesEIN 75-2060900 | Human Services | TX | $2,248,455Small | 90.68 |
| Neuroendocrine Tumor Research FoundationEIN 20-1945347 | Health | MA | $6,307,127Mid-sized | 97.17 |
| Nevada Childhood Cancer FoundationEIN 88-0302673 | Health | NV | $1,705,987Small | 90.00 |
| Nevada Humane SocietyEIN 88-0072720 | Animals | NV | $4,939,271Mid-sized | 100.00 |
| NeverthirstEIN 45-0594639 | International | AL | $2,251,684Small | 92.24 |
| New 42nd StreetEIN 13-3584032 | Arts, Culture, Humanities | NY | $18,222,151Large | 91.30 |
| New AmericaEIN 52-2096845 | Research and Public Policy | DC | $37,245,071Large | 95.23 |
| New Conservatory Theatre CenterEIN 94-2778856 | Arts, Culture, Humanities | CA | $1,798,286Small | 91.82 |
| New England Anti-Vivisection SocietyEIN 04-2104756 | Animals | MA | $1,211,547Small | 96.33 |
| New England Foundation for the ArtsEIN 04-2593591 | Arts, Culture, Humanities | MA | $7,833,787Mid-sized | 95.04 |
| New England Wildlife CenterEIN 04-2907561 | Animals | MA | $1,566,100Small | 91.78 |
| New Friends New LifeEIN 75-2820473 | Human Services | TX | $1,907,300Small | 90.54 |
| New Hampshire SPCAEIN 02-6000614 | Animals | NH | $2,369,266Small | 90.02 |
| New Hope MinistriesEIN 23-2223120 | Human Services | PA | $7,322,156Mid-sized | 95.87 |
| New Jersey Audubon SocietyEIN 22-1539642 | Environment | NJ | $6,683,422Mid-sized | 94.64 |
| New Jersey FutureEIN 22-2879323 | Community Development | NJ | $1,734,749Small | 92.21 |
| New Jersey Performing Arts CenterEIN 22-2889703 | Arts, Culture, Humanities | NJ | $46,323,832Large | 95.24 |
| New Jersey SEEDSEIN 22-3181507 | Education | NJ | $4,309,922Mid-sized | 90.42 |