| Liberty Science CenterEIN 22-2302253 | Arts, Culture, Humanities | NJ | $27,635,857Large | 91.45 |
| Liberty USOEIN 23-1426011 | Human Services | PA | $2,249,799Small | 85.99 |
| Liberty Youth RanchEIN 38-3674666 | Human Services | FL | $879,430Small | 81.32 |
| Library Company of PhiladelphiaEIN 23-1370444 | Arts, Culture, Humanities | PA | $3,452,930Small | 86.21 |
| Library Foundation of Los AngelesEIN 95-4368250 | Arts, Culture, Humanities | CA | $6,805,193Mid-sized | 94.18 |
| Life Action MinistriesEIN 38-2157686 | Religion | MI | $14,962,778Large | 87.94 |
| Life CentersEIN 31-1059740 | Human Services | IN | $1,470,473Small | 80.66 |
| Life Choices of MemphisEIN 62-1281799 | Health | TN | $1,061,899Small | 83.38 |
| Life for Relief and DevelopmentEIN 95-4402149 | International | MI | $10,068,604Mid-sized | 87.25 |
| Life In Abundance InternationalEIN 02-0587875 | International | KY | $2,751,356Small | 92.37 |
| 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 Legal Defense FoundationEIN 68-0191488 | Human and Civil Rights | CA | $2,096,898Small | 93.76 |
| Life NetworkEIN 84-0970592 | Health | CO | $1,490,345Small | 77.24 |
| Life Without LimbsEIN 37-1511251 | Religion | CA | $1,671,772Small | 68.82 |
| Life-Study FellowshipEIN 06-1035622 | Religion | CT | $1,472,033Small | 59.37 |
| LifeFlight FoundationEIN 52-2377085 | Health | ME | $1,785,307Small | 83.37 |
| LifeLight CommunicationsEIN 46-0460742 | Religion | SD | $1,347,099Small | 67.10 |
| Lifeline Christian MissionEIN 31-0999791 | Religion | OH | $8,238,442Mid-sized | 87.05 |
| LifeMovesEIN 77-0160469 | Human Services | CA | $21,083,252Large | 90.87 |
| LifeNet4Families | Cooperative Feeding ProgramEIN 59-2696451 | Human Services | FL | $2,405,002Small | 91.16 |
| Lifesavers Wild Horse RescueEIN 95-4631906 | Animals | CA | $2,016,560Small | 78.85 |
| Lifesong for OrphansEIN 35-1902841 | Human Services | IL | $16,275,470Large | 100.00 |
| Lifewater InternationalEIN 95-3987142 | International | CA | $4,367,208Mid-sized | 92.49 |
| LifeWireEIN 91-1190193 | Human Services | WA | $3,673,126Mid-sized | 91.39 |
| Lifeword Media MinistriesEIN 71-0394665 | Religion | AR | $1,317,048Small | 74.57 |
| LIFTEIN 52-2168409 | Human Services | DC | $5,586,830Mid-sized | 79.56 |
| LiftFundEIN 74-2712770 | Community Development | TX | $16,726,193Large | 91.10 |
| Lifting GenerationsEIN 80-0001164 | International | UT | $1,750,813Small | 81.62 |
| Light Bearers MinistryEIN 91-1320416 | Religion | OR | $2,143,996Small | 78.76 |
| Light of Life Rescue MissionEIN 25-1056389 | Human Services | PA | $6,393,424Mid-sized | 90.12 |
| LightHawkEIN 84-0852104 | Environment | CO | $1,589,618Small | 85.34 |
| Lighthouse Children's HomeEIN 59-1725801 | Human Services | FL | $1,736,706Small | 72.86 |
| Lighthouse Family RetreatEIN 58-2509728 | Health | GA | $2,313,452Small | 83.31 |
| LightHouse for the Blind and Visually ImpairedEIN 94-1415317 | Human Services | CA | $12,324,154Mid-sized | 95.17 |
| Lighthouse Ministries, FloridaEIN 59-1722768 | Human Services | FL | $3,656,333Mid-sized | 85.85 |
| Lighthouse of Broward CountyEIN 59-1650909 | Human Services | FL | $1,874,571Small | 96.22 |
| Ligonier MinistriesEIN 25-1298611 | Religion | FL | $21,587,586Large | 89.44 |
| Lincoln Center for the Performing ArtsEIN 13-1847137 | Arts, Culture, Humanities | NY | $171,260,689Large | 90.26 |
| Lincoln Center TheaterEIN 13-3004747 | Arts, Culture, Humanities | NY | $44,380,044Large | 91.88 |
| Lincoln Children's MuseumEIN 47-0716636 | Arts, Culture, Humanities | NE | $1,529,973Small | 86.62 |
| Lincoln Park ZooEIN 36-2512404 | Animals | IL | $43,412,852Large | 85.43 |
| Lindsay Wildlife MuseumEIN 94-6104179 | Arts, Culture, Humanities | CA | $2,679,461Small | 87.12 |
| LINK Unlimited ScholarsEIN 23-7386928 | Education | IL | $2,710,923Small | 83.38 |
| Linn Benton Food ShareEIN 93-1099406 | Human Services | OR | $8,991,492Mid-sized | 93.49 |
| Lions Clubs International FoundationEIN 23-7030455 | Human Services | IL | $58,459,538Large | 90.69 |
| LISTEN Community ServicesEIN 23-7225952 | Human Services | NH | $2,434,586Small | 91.15 |
| Literacy ActionEIN 58-1053728 | Education | GA | $1,905,616Small | 90.52 |
| Literacy Assistance CenterEIN 13-3179618 | Education | NY | $1,917,881Small | 86.84 |
| Literacy Coalition of Palm Beach CountyEIN 65-0169781 | Education | FL | $4,764,772Mid-sized | 91.91 |
| Literacy PartnersEIN 51-0180665 | Education | NY | $2,411,788Small | 87.70 |
| Literacy, Inc.EIN 13-3911331 | Education | NY | $2,604,693Small | 89.64 |
| Literary ArtsEIN 93-0909494 | Education | OR | $2,167,145Small | 85.87 |
| Little Bit Therapeutic Riding Center EIN 91-1012131 | Health | WA | $2,283,394Small | 84.02 |
| Little Kids RockEIN 94-3396568 | Education | NJ | $5,555,404Mid-sized | 89.88 |
| Little League BaseballEIN 23-1688231 | Human Services | PA | $29,597,459Large | 86.96 |
| Little Light HouseEIN 73-0939422 | Education | OK | $2,305,990Small | 99.32 |
| Little Red Door Cancer AgencyEIN 35-0914096 | Health | IN | $1,916,196Small | 86.46 |
| Little Sisters of the Assumption Family Health ServiceEIN 13-2867881 | Human Services | NY | $4,959,509Mid-sized | 86.04 |