| Jewish Federation of Greater New HavenEIN 06-0647025 | Community Development | CT | $7,808,961Mid-sized | 77.04 |
| Jewish Federation of Greater OrlandoEIN 59-0946923 | Community Development | FL | $1,769,704Small | 77.83 |
| John Wayne Cancer InstituteEIN 95-4291515 | Health | CA | $15,682,579Large | 71.34 |
| Jones Valley Teaching FarmEIN 52-2359003 | Education | AL | $1,191,879Small | 78.74 |
| Jubilee Leadership AcademyEIN 51-0505773 | Human Services | WA | $1,958,361Small | 71.48 |
| Judicial WatchEIN 52-1885088 | Human and Civil Rights | DC | $32,128,134Large | 76.96 |
| Juma VenturesEIN 94-3203203 | Human Services | CA | $6,818,582Mid-sized | 78.56 |
| Jungle Friends Primate SanctuaryEIN 86-0859789 | Animals | FL | $756,871Small | 79.64 |
| Junior Achievement ChinaEIN 56-1860018 | Education | NC | $1,728,982Small | 74.33 |
| Junior Achievement of Central CarolinasEIN 56-0672085 | Education | NC | $1,646,125Small | 77.13 |
| Katonah Museum of ArtEIN 13-6161548 | Arts, Culture, Humanities | NY | $1,716,906Small | 76.43 |
| KCETLinkEIN 95-2211661 | Arts, Culture, Humanities | CA | $28,403,983Large | 77.03 |
| Keystone Policy CenterEIN 84-0688506 | Research and Public Policy | CO | $3,705,939Mid-sized | 78.10 |
| KIK Kentfield Schools FoundationEIN 94-2665683 | Education | CA | $1,406,607Small | 73.26 |
| Kilo Diabetes & Vascular Research FoundationEIN 23-7152540 | Health | MO | $332,850Small | 74.65 |
| Kingsway CharitiesEIN 54-1668650 | International | VA | $67,067,697Large | 71.53 |
| Knoxville Opera CompanyEIN 62-1015262 | Arts, Culture, Humanities | TN | $1,564,890Small | 73.58 |
| Koinonia HouseEIN 23-7292636 | Religion | ID | $2,106,344Small | 71.76 |
| KSMQEIN 68-0599645 | Arts, Culture, Humanities | MN | $1,940,862Small | 78.12 |
| La Leche League InternationalEIN 36-2514518 | Human Services | NC | $938,688Small | 72.36 |
| Laguna Art MuseumEIN 33-0717157 | Arts, Culture, Humanities | CA | $2,339,192Small | 73.10 |
| Lake Area United WayEIN 23-7170019 | Community Development | IN | $3,382,305Small | 75.74 |
| LancasterHistory.orgEIN 23-1365154 | Arts, Culture, Humanities | PA | $2,255,715Small | 76.17 |
| Lantern HouseEIN 87-0368808 | Human Services | UT | $2,766,907Small | 76.66 |
| Laumeier Sculpture ParkEIN 43-1131429 | Arts, Culture, Humanities | MO | $1,879,075Small | 73.48 |
| Lausanne Committee for World EvangelizationEIN 33-0901290 | Religion | FL | $1,298,608Small | 73.46 |
| League of Women Voters Education FundEIN 53-0239013 | Human and Civil Rights | DC | $2,592,235Small | 74.42 |
| Learning LeadersEIN 13-2658549 | Education | NY | $2,267,777Small | 75.59 |
| Legal Aid Justice CenterEIN 54-0884513 | Human and Civil Rights | VA | $4,804,687Mid-sized | 76.65 |
| Legal MomentumEIN 23-7085442 | Human and Civil Rights | NY | $2,191,015Small | 78.25 |
| Level Playing Field InstituteEIN 91-2088635 | Education | CA | $5,201,047Mid-sized | 79.21 |
| Lexington InstituteEIN 54-1880642 | Research and Public Policy | VA | $2,015,906Small | 70.79 |
| Lexington Rescue MissionEIN 61-1387338 | Human Services | KY | $1,484,168Small | 79.19 |
| Life InternationalEIN 38-3625693 | Religion | MI | $1,654,401Small | 79.73 |
| Life is Good Kids FoundationEIN 20-5524270 | Human Services | MA | $1,888,936Small | 72.19 |
| Life Issues InstituteEIN 31-0814275 | Human and Civil Rights | OH | $666,850Small | 74.67 |
| Life NetworkEIN 84-0970592 | Health | CO | $1,490,345Small | 77.24 |
| Lifesavers Wild Horse RescueEIN 95-4631906 | Animals | CA | $2,016,560Small | 78.85 |
| Lifeword Media MinistriesEIN 71-0394665 | Religion | AR | $1,317,048Small | 74.57 |
| LIFTEIN 52-2168409 | Human Services | DC | $5,586,830Mid-sized | 79.56 |
| Light Bearers MinistryEIN 91-1320416 | Religion | OR | $2,143,996Small | 78.76 |
| Lighthouse Children's HomeEIN 59-1725801 | Human Services | FL | $1,736,706Small | 72.86 |
| Little Sisters of the Poor at St. Martin's BaltimoreEIN 52-0715244 | Human Services | MD | $7,179,367Mid-sized | 77.26 |
| Little Sisters of the Poor of IndianapolisEIN 35-1007734 | Human Services | IN | $6,639,356Mid-sized | 77.89 |
| LitWorldEIN 13-4367685 | Education | NY | $1,372,881Small | 79.95 |
| Live ActionEIN 42-1764425 | Human and Civil Rights | VA | $3,359,488Small | 71.34 |
| Lives Under Construction Boys RanchEIN 46-0368556 | Human Services | MO | $1,358,480Small | 78.47 |
| Logan Square Neighborhood AssociationEIN 36-2638491 | Community Development | IL | $2,108,665Small | 74.95 |
| LOGOIEIN 59-1209720 | Religion | FL | $675,621Small | 71.41 |
| Long Beach OperaEIN 95-3387074 | Arts, Culture, Humanities | CA | $2,078,167Small | 70.99 |
| Los Angeles BalletEIN 20-1819852 | Arts, Culture, Humanities | CA | $2,925,423Small | 76.38 |
| Los Angeles MissionEIN 95-3134049 | Human Services | CA | $13,882,445Large | 75.03 |
| Louisiana Baptist Children's Home & Family MinistriesEIN 72-6000696 | Human Services | LA | $6,616,544Mid-sized | 73.05 |
| Louisiana Resource Center for EducatorsEIN 58-1704372 | Education | LA | $1,493,374Small | 71.54 |
| Louisiana Symphony AssociationEIN 72-6001959 | Arts, Culture, Humanities | LA | $2,049,050Small | 72.62 |
| Love Worth FindingEIN 58-1730035 | Religion | TN | $5,564,717Mid-sized | 79.58 |
| Lovelane Special Needs Horseback Riding ProgramEIN 04-3139666 | Health | MA | $1,169,575Small | 78.97 |
| Lupus Foundation of AmericaEIN 43-1131436 | Health | DC | $13,256,140Mid-sized | 72.88 |
| Lutheran Music ProgramEIN 47-0638445 | Arts, Culture, Humanities | MN | $1,097,899Small | 79.63 |
| Lymphoma Research FoundationEIN 95-4335088 | Health | NY | $8,784,268Mid-sized | 79.06 |