| "I Have a Dream" FoundationEIN 13-3355315 | Education | NY | $4,097,195Mid-sized | 83.32 |
| 'Aha Pūnana LeoEIN 99-0226111 | Education | HI | $5,768,885Mid-sized | 86.46 |
| 100 Black Men of AmericaEIN 58-1974429 | Human Services | GA | $3,866,490Mid-sized | 88.49 |
| 100 Club of ArizonaEIN 23-7172077 | Human Services | AZ | $1,389,812Small | 88.11 |
| 1000 Friends of FloridaEIN 59-2761163 | Environment | FL | $531,451Small | 88.13 |
| A Chance to Change FoundationEIN 73-1116884 | Health | OK | $1,714,992Small | 88.72 |
| A Child's PlaceEIN 58-1911741 | Education | NC | $1,398,461Small | 89.39 |
| A Jewish Voice for PeaceEIN 90-0018359 | International | CA | $3,532,356Mid-sized | 85.64 |
| AACA MuseumEIN 25-1716419 | Arts, Culture, Humanities | PA | $1,810,791Small | 89.60 |
| Abilities UnitedEIN 94-1546643 | Human Services | CA | $5,575,172Mid-sized | 80.55 |
| Abraham HouseEIN 13-3721924 | Human Services | NY | $998,412Small | 80.76 |
| Abused Deaf Women's Advocacy ServicesEIN 91-1339173 | Human Services | WA | $1,464,215Small | 88.57 |
| Academy of AchievementEIN 75-6042129 | Education | DC | $2,047,357Small | 83.43 |
| Academy of American PoetsEIN 13-1879953 | Arts, Culture, Humanities | NY | $1,830,939Small | 84.97 |
| Academy of Hope Adult Public Charter SchoolEIN 52-1730021 | Education | DC | $5,648,649Mid-sized | 84.67 |
| Academy of Vocal ArtsEIN 23-1352001 | Education | PA | $3,853,315Mid-sized | 86.47 |
| ACCESSEIN 34-1395246 | Human Services | OH | $1,295,114Small | 89.54 |
| Access FundEIN 94-3131165 | Environment | CO | $2,707,760Small | 87.80 |
| ACCION InternationalEIN 13-2535763 | International | MA | $30,276,113Large | 89.54 |
| Achievement Centers for Children & Families FoundationEIN 65-1023099 | Education | FL | $2,464,947Small | 88.42 |
| Achievement FirstEIN 65-1203744 | Education | CT | $44,360,810Large | 84.01 |
| AchieveMplsEIN 41-1425264 | Education | MN | $5,317,785Mid-sized | 88.22 |
| Achilles InternationalEIN 13-3318293 | Human Services | NY | $2,514,699Small | 89.04 |
| ACLU Foundation of MarylandEIN 23-7209538 | Human and Civil Rights | MD | $2,359,536Small | 88.18 |
| ACLU Foundation of Southern CaliforniaEIN 95-2673361 | Human and Civil Rights | CA | $15,441,711Large | 89.24 |
| ACLU Foundation of TexasEIN 76-0343171 | Human and Civil Rights | TX | $2,750,769Small | 85.90 |
| ACLU of Michigan FoundationEIN 23-7243421 | Human and Civil Rights | MI | $2,797,200Small | 84.51 |
| Act BeyondEIN 27-1928559 | Religion | TX | $5,132,312Mid-sized | 84.21 |
| Action in Community Through ServiceEIN 54-0897679 | Human Services | VA | $4,918,470Mid-sized | 87.44 |
| Action MinistriesEIN 58-2070427 | Human Services | GA | $8,390,890Mid-sized | 89.73 |
| Actors and Others for AnimalsEIN 95-2783139 | Animals | CA | $764,861Small | 85.26 |
| Actors Theatre of LouisvilleEIN 61-0645030 | Arts, Culture, Humanities | KY | $10,786,655Mid-sized | 89.80 |
| Adirondack Historical AssociationEIN 13-5635801 | Arts, Culture, Humanities | NY | $5,687,303Mid-sized | 89.15 |
| Adirondack Mountain ClubEIN 15-0586270 | Environment | NY | $4,222,811Mid-sized | 85.38 |
| Adler PlanetariumEIN 36-6210902 | Arts, Culture, Humanities | IL | $18,818,691Large | 84.58 |
| Administer JusticeEIN 36-4348917 | Human and Civil Rights | IL | $1,668,776Small | 86.67 |
| Adolescent Counseling ServicesEIN 51-0192551 | Human Services | CA | $1,506,807Small | 88.81 |
| AdoptAPlatoon Soldier Support EffortEIN 74-2918904 | Human Services | TX | $7,690,041Mid-sized | 87.30 |
| ADRA InternationalEIN 52-1314847 | International | MD | $58,086,587Large | 88.57 |
| Advance IllinoisEIN 26-2052733 | Education | IL | $2,382,775Small | 87.10 |
| Advancement ProjectEIN 95-4835230 | Human and Civil Rights | CA | $11,346,188Mid-sized | 88.06 |
| Advancing Native MissionsEIN 75-2402759 | Religion | VA | $10,313,690Mid-sized | 85.85 |
| Adventure UnlimitedEIN 43-0798771 | Human Services | CO | $5,023,780Mid-sized | 86.13 |
| AffirmationsEIN 38-2882823 | Human and Civil Rights | MI | $938,100Small | 84.31 |
| African Bible CollegesEIN 64-0592533 | Religion | MS | $3,549,476Mid-sized | 85.49 |
| African LeadershipEIN 31-1736706 | International | TN | $1,323,756Small | 81.90 |
| African Leadership and Reconciliation MinistriesEIN 31-1660877 | Religion | TX | $3,076,602Small | 85.23 |
| African Leadership FoundationEIN 83-0425133 | Education | NY | $4,352,790Mid-sized | 82.24 |
| AFS-USAEIN 39-1711417 | International | NY | $34,083,573Large | 82.12 |
| Aga Khan Foundation, USAEIN 52-1231983 | International | DC | $47,638,836Large | 86.72 |
| Agape VillagesEIN 68-0226944 | Human Services | CA | $2,614,012Small | 82.32 |
| Agudath Israel of AmericaEIN 13-5604164 | Religion | NY | $12,783,742Mid-sized | 80.88 |
| AID FOR AIDS InternationalEIN 13-3954568 | International | NY | $8,500,640Mid-sized | 80.96 |
| AIDS Action Committee of MassachusettsEIN 22-2707246 | Health | MA | $9,905,712Mid-sized | 85.38 |
| AIDS Foundation HoustonEIN 76-0073661 | Health | TX | $4,911,843Mid-sized | 87.43 |
| Air Force Enlisted VillageEIN 23-7078212 | Human Services | FL | $10,042,657Mid-sized | 86.42 |
| Akron Art MuseumEIN 34-0813426 | Arts, Culture, Humanities | OH | $4,777,487Mid-sized | 82.98 |
| Akron Community FoundationEIN 34-1087615 | Community Development | OH | $14,391,251Large | 89.24 |
| Alabama BalletEIN 63-0813626 | Arts, Culture, Humanities | AL | $1,838,104Small | 84.44 |
| Alabama Shakespeare FestivalEIN 63-0652734 | Arts, Culture, Humanities | AL | $8,281,994Mid-sized | 80.70 |