| Latino Policy ForumEIN 36-3676873 | Human and Civil Rights | IL | $1,400,304Small | 82.88 |
| LatinoJustice PRLDEFEIN 13-2722664 | Human and Civil Rights | NY | $2,720,183Small | 85.76 |
| Laumeier Sculpture ParkEIN 43-1131429 | Arts, Culture, Humanities | MO | $1,879,075Small | 73.48 |
| Laura's HouseEIN 33-0621826 | Human Services | CA | $3,677,412Mid-sized | 91.77 |
| Lauritzen GardensEIN 47-0659701 | Environment | NE | $6,507,988Mid-sized | 84.42 |
| Lausanne Committee for World EvangelizationEIN 33-0901290 | Religion | FL | $1,298,608Small | 73.46 |
| Law Enforcement Education ProgramEIN 38-3385175 | Human Services | MI | $1,443,890Small | 24.35 |
| Law Enforcement Legal Defense FundEIN 52-1095066 | Human and Civil Rights | VA | $1,632,586Small | 87.54 |
| Lawrence Family Jewish Community Center, Jacobs Family CampusEIN 95-1985444 | Human Services | CA | $12,171,345Mid-sized | 90.46 |
| Lawyers Alliance for New YorkEIN 13-2666432 | Human and Civil Rights | NY | $3,003,462Small | 87.33 |
| Lawyers' Committee for Civil Rights Under LawEIN 52-0799246 | Human and Civil Rights | DC | $7,241,908Mid-sized | 87.31 |
| Lazarus HouseEIN 04-2755382 | Human Services | MA | $8,732,769Mid-sized | 88.94 |
| Leader Dogs for the BlindEIN 38-1366931 | Human Services | MI | $14,964,355Large | 85.08 |
| Leadership Conference Education FundEIN 23-7026895 | Human and Civil Rights | DC | $11,075,584Mid-sized | 90.72 |
| Leadership MemphisEIN 62-1043517 | Community Development | TN | $1,768,006Small | 92.02 |
| Leadership Resources InternationalEIN 36-2972097 | Religion | IL | $3,155,098Small | 81.87 |
| Leadership RoundtableEIN 54-2174467 | Religion | DC | $2,362,890Small | 80.46 |
| LEADership, Education and DevelopmentEIN 23-2139831 | Education | GA | $695,511Small | 52.72 |
| Leading The Way with Dr. Michael YoussefEIN 58-1816773 | Religion | GA | $17,173,030Large | 97.10 |
| League for Animal WelfareEIN 31-0818511 | Animals | OH | $1,511,108Small | 93.36 |
| League of American BicyclistsEIN 36-6206225 | Research and Public Policy | DC | $1,587,429Small | 81.45 |
| League of American OrchestrasEIN 23-7300636 | Arts, Culture, Humanities | NY | $7,061,267Mid-sized | 90.36 |
| League of Conservation Voters Education FundEIN 52-1379661 | Environment | DC | $18,493,698Large | 92.02 |
| League of Education Voters FoundationEIN 91-2141507 | Education | WA | $3,258,126Small | 87.56 |
| League of Women Voters Education FundEIN 53-0239013 | Human and Civil Rights | DC | $2,592,235Small | 74.42 |
| League to Save Lake TahoeEIN 94-6128680 | Environment | CA | $2,194,842Small | 85.65 |
| LEAPEIN 22-2906547 | Education | CT | $2,331,529Small | 91.45 |
| Learning AllyEIN 13-1659345 | Education | NJ | $17,323,663Large | 80.95 |
| Learning LeadersEIN 13-2658549 | Education | NY | $2,267,777Small | 75.59 |
| Leave No Trace Center for Outdoor EthicsEIN 84-1303335 | Environment | CO | $1,905,401Small | 91.90 |
| LeavenEIN 39-1572168 | Human Services | WI | $1,206,416Small | 90.50 |
| Lee Pesky Learning CenterEIN 13-3878574 | Education | ID | $1,453,064Small | 89.87 |
| Leg Up FarmEIN 23-2931834 | Health | PA | $2,724,018Small | 80.10 |
| Legacy Youth Tennis and EducationEIN 23-1747032 | Human Services | PA | $2,880,570Small | 83.24 |
| Legal Action Center of the City of New YorkEIN 13-2756320 | Human and Civil Rights | NY | $5,209,211Mid-sized | 86.67 |
| Legal Aid Justice CenterEIN 54-0884513 | Human and Civil Rights | VA | $4,804,687Mid-sized | 76.65 |
| Legal Aid of Western MissouriEIN 43-0824638 | Human and Civil Rights | MO | $8,725,119Mid-sized | 85.86 |
| Legal Aid Society of ClevelandEIN 34-0866026 | Human and Civil Rights | OH | $7,921,882Mid-sized | 94.05 |
| Legal Aid Society of San Mateo CountyEIN 94-1451894 | Human and Civil Rights | CA | $2,751,433Small | 89.37 |
| Legal Aid Society of the District of ColumbiaEIN 53-0196600 | Human and Civil Rights | DC | $5,594,783Mid-sized | 99.46 |
| Legal Information for Families Today (LIFT)EIN 13-3910567 | Human and Civil Rights | NY | $1,812,443Small | 86.20 |
| Legal MomentumEIN 23-7085442 | Human and Civil Rights | NY | $2,191,015Small | 78.25 |
| Legal OutreachEIN 13-3214627 | Education | NY | $2,609,785Small | 87.22 |
| Legal Services for ChildrenEIN 51-0169463 | Human and Civil Rights | CA | $2,541,488Small | 89.89 |
| Lensic Performing Arts CenterEIN 85-0448396 | Arts, Culture, Humanities | NM | $3,804,951Mid-sized | 90.46 |
| Les Turner ALS FoundationEIN 36-2916466 | Health | IL | $2,469,145Small | 85.71 |
| Lesbian, Gay, Bisexual & Transgender Community CenterEIN 13-3217805 | Human and Civil Rights | NY | $11,272,823Mid-sized | 90.68 |
| LeSea Global Feed the HungryEIN 32-0053249 | International | IN | $20,810,077Large | 91.36 |
| Let's Get ReadyEIN 31-1698832 | Education | NY | $3,468,417Small | 92.03 |
| Leukemia Research FoundationEIN 36-6102182 | Health | IL | $2,490,827Small | 91.93 |
| Level Playing Field InstituteEIN 91-2088635 | Education | CA | $5,201,047Mid-sized | 79.21 |
| Levine Museum of the New SouthEIN 56-1748648 | Arts, Culture, Humanities | NC | $2,311,042Small | 83.95 |
| Lewis Ginter Botanical GardenEIN 54-1273467 | Environment | VA | $8,265,053Mid-sized | 95.14 |
| Lewy Body Dementia AssociationEIN 05-0577683 | Health | GA | $1,151,496Small | 89.94 |
| Lexington Humane SocietyEIN 61-0444762 | Animals | KY | $3,623,048Mid-sized | 93.10 |
| 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 |
| LGBTQ Victory InstituteEIN 52-1835268 | Human and Civil Rights | DC | $2,665,828Small | 81.71 |
| Liberty Hill FoundationEIN 51-0181191 | Community Development | CA | $8,848,390Mid-sized | 92.75 |
| Liberty in North KoreaEIN 73-1710135 | International | CA | $2,117,955Small | 88.50 |