| Association for Enterprise OpportunityEIN 36-3834357 | Community Development | DC | $2,163,035Small | 92.20 |
| Association for India's DevelopmentEIN 04-3652609 | International | MD | $2,380,339Small | 100.00 |
| Association for the Colonial TheatreEIN 23-2846336 | Arts, Culture, Humanities | PA | $1,266,587Small | 90.34 |
| Association of Gospel Rescue Missions dba Citygate NetworkEIN 55-0479715 | Human Services | CO | $2,050,377Small | 90.53 |
| Association of Reproductive Health ProfessionalsEIN 52-1591381 | Health | DC | $1,538,776Small | 85.38 |
| Association of Waldorf Schools of North AmericaEIN 23-2083226 | Education | CO | $1,897,113Small | 83.06 |
| Association on American Indian AffairsEIN 13-1623902 | Human Services | MD | $488,251Small | 77.23 |
| Athol Area YMCAEIN 04-2103727 | Human Services | MA | $1,310,042Small | 81.56 |
| Atlanta Children's ShelterEIN 58-1675299 | Human Services | GA | $1,313,147Small | 84.73 |
| Atlantic City Rescue MissionEIN 22-6076337 | Human Services | NJ | $3,201,818Small | 71.26 |
| Attention HomesEIN 84-0571145 | Human Services | CO | $1,918,605Small | 84.84 |
| Audio Scripture MinistriesEIN 23-6296186 | Religion | MI | $1,253,635Small | 97.17 |
| Audubon Canyon RanchEIN 94-6069140 | Environment | CA | $3,214,289Small | 86.74 |
| Audubon Naturalist SocietyEIN 53-0233715 | Environment | MD | $3,487,149Small | 90.15 |
| Audubon Society of Rhode IslandEIN 05-0265675 | Environment | RI | $2,711,731Small | 83.06 |
| Audubon Society of Western PennsylvaniaEIN 25-1324559 | Environment | PA | $1,541,453Small | 92.20 |
| Austin Humane SocietyEIN 74-6013665 | Animals | TX | $3,317,649Small | 78.80 |
| Austin YMBL Sunshine CampsEIN 74-6023176 | Human Services | TX | $1,174,474Small | 92.18 |
| Autism Research InstituteEIN 95-2548452 | Health | CA | $1,172,369Small | 92.92 |
| Autism Society of AmericaEIN 52-1020149 | Health | MD | $2,487,881Small | 75.84 |
| Autism Spectrum Disorder FoundationEIN 20-8820570 | Health | IN | $2,739,355Small | 23.84 |
| Ave Maria RadioEIN 38-3263675 | Religion | MI | $2,276,370Small | 88.98 |
| Avenues for Homeless YouthEIN 41-1765140 | Human Services | MN | $2,332,809Small | 91.12 |
| Avenues for JusticeEIN 13-3267496 | Human Services | NY | $1,525,572Small | 94.68 |
| Back to the Bible FoundationEIN 47-6022615 | Religion | NE | $699,991Small | 72.38 |
| Bainbridge Schools FoundationEIN 91-1427019 | Education | WA | $1,004,781Small | 74.56 |
| Bald Head Island ConservancyEIN 58-1574496 | Environment | NC | $1,355,042Small | 79.38 |
| Ballet Tech FoundationEIN 13-2773475 | Arts, Culture, Humanities | NY | $3,421,242Small | 92.52 |
| Baltimore ClayworksEIN 52-1409133 | Education | MD | $1,100,010Small | 75.88 |
| Baltimore Humane SocietyEIN 52-0623165 | Animals | MD | $1,610,383Small | 85.88 |
| Bang on a CanEIN 13-3392963 | Arts, Culture, Humanities | NY | $2,167,366Small | 81.29 |
| Bangor Humane SocietyEIN 01-0215910 | Animals | ME | $1,221,051Small | 81.96 |
| Barnabas AidEIN 16-1711227 | Religion | VA | $3,052,367Small | 83.84 |
| Barnabas CenterEIN 59-2920275 | Human Services | FL | $3,364,655Small | 98.23 |
| Bartlesville Regional United WayEIN 23-7041295 | Community Development | OK | $2,299,800Small | 84.95 |
| Basic GospelEIN 75-1564364 | Religion | TX | $1,089,851Small | 84.29 |
| Basic Rights Education FundEIN 93-1266613 | Human and Civil Rights | OR | $912,691Small | 83.70 |
| Bay Area Cancer ConnectionsEIN 77-0417605 | Health | CA | $1,621,165Small | 91.48 |
| Bay Chamber ConcertsEIN 01-6023519 | Arts, Culture, Humanities | ME | $993,149Small | 76.75 |
| Bay Cliff Health CampEIN 38-6000167 | Health | MI | $2,035,747Small | 76.91 |
| Beacon AcademyEIN 73-1710051 | Education | MA | $1,710,486Small | 92.17 |
| Bean's CafeEIN 92-0072522 | Human Services | AK | $2,577,325Small | 87.89 |
| Bear Necessities Pediatric Cancer FoundationEIN 36-3874655 | Health | IL | $1,914,328Small | 81.66 |
| Bemis Center for Contemporary ArtsEIN 47-0653927 | Arts, Culture, Humanities | NE | $1,699,910Small | 77.37 |
| Bend the Arc: A Jewish Partnership for JusticeEIN 52-1332694 | Human and Civil Rights | NY | $3,103,664Small | 77.70 |
| Berkeley Public Library FoundationEIN 94-3280180 | Arts, Culture, Humanities | CA | $341,709Small | 84.26 |
| Berkeley Symphony OrchestraEIN 23-7219508 | Arts, Culture, Humanities | CA | $1,202,472Small | 75.81 |
| Berkshire Humane SocietyEIN 04-3148018 | Animals | MA | $1,460,649Small | 86.63 |
| Berkshire MuseumEIN 04-2103878 | Arts, Culture, Humanities | MA | $3,117,319Small | 86.85 |
| Berkshire United WayEIN 04-2104841 | Community Development | MA | $2,754,541Small | 83.91 |
| Bernheim Arboretum and Research ForestEIN 61-0444651 | Environment | KY | $3,094,982Small | 87.30 |
| BestPrepEIN 41-1265355 | Education | MN | $1,538,322Small | 87.56 |
| Bethel Bible VillageEIN 62-6019872 | Human Services | TN | $2,186,364Small | 92.20 |
| Bethesda-Chevy Chase Rescue SquadEIN 52-0583872 | Human Services | MD | $1,992,723Small | 90.71 |
| Better BasicsEIN 63-1106040 | Education | AL | $1,385,218Small | 91.36 |
| Better Government AssociationEIN 36-0802950 | Human and Civil Rights | IL | $3,079,240Small | 96.89 |
| Beverly BootstrapEIN 04-3254507 | Human Services | MA | $2,781,956Small | 88.49 |
| Beyond BordersEIN 23-2713126 | International | DC | $1,960,030Small | 92.90 |
| Beyond CeliacEIN 90-0108854 | Health | PA | $1,403,993Small | 92.38 |
| Beyond PesticidesEIN 52-1360541 | Environment | DC | $1,025,719Small | 90.35 |