| Richmond Ballet, The State Ballet of VirginiaEIN 54-6049848 | Arts, Culture, Humanities | VA | $7,064,503Mid-sized | 90.94 |
| Richmond SPCAEIN 54-0506328 | Animals | VA | $6,971,781Mid-sized | 91.87 |
| Richmond SymphonyEIN 54-6024033 | Arts, Culture, Humanities | VA | $5,127,052Mid-sized | 78.97 |
| Rising Tide CapitalEIN 11-3720098 | Human Services | NJ | $4,068,979Mid-sized | 95.65 |
| RiverkeeperEIN 13-3204621 | Environment | NY | $4,274,476Mid-sized | 93.25 |
| Riverside Park ConservancyEIN 13-3443825 | Environment | NY | $4,726,703Mid-sized | 88.60 |
| Robert E. Lee Memorial AssociationEIN 54-0536105 | Arts, Culture, Humanities | VA | $3,723,205Mid-sized | 85.47 |
| Robert F. Kennedy Human RightsEIN 13-2522784 | Research and Public Policy | DC | $7,359,062Mid-sized | 83.70 |
| Robert Toigo FoundationEIN 13-3565420 | Education | CA | $3,531,060Mid-sized | 94.48 |
| RocaEIN 22-3223641 | Human Services | MA | $11,234,089Mid-sized | 94.28 |
| Rochester Museum and Science CenterEIN 16-0794131 | Arts, Culture, Humanities | NY | $7,541,594Mid-sized | 89.52 |
| Rochester Philharmonic OrchestraEIN 16-0765613 | Arts, Culture, Humanities | NY | $11,226,107Mid-sized | 82.52 |
| Rock the VoteEIN 02-0767157 | Human and Civil Rights | DC | $6,204,786Mid-sized | 85.55 |
| Rockford Rescue MissionEIN 36-6132381 | Human Services | IL | $5,700,304Mid-sized | 90.10 |
| Rockport MusicEIN 22-2479696 | Arts, Culture, Humanities | MA | $4,168,139Mid-sized | 86.33 |
| Rofeh Cholim Cancer SocietyEIN 11-3355081 | Health | NY | $6,260,818Mid-sized | 80.01 |
| Roger Baldwin Foundation of ACLUEIN 36-2682569 | Human and Civil Rights | IL | $4,101,273Mid-sized | 92.22 |
| Rolling Hills ZooEIN 30-0180215 | Animals | KS | $4,148,136Mid-sized | 79.63 |
| Ron Hutchcraft MinistriesEIN 22-3134995 | Religion | AR | $3,661,779Mid-sized | 87.02 |
| Ronald McDonald House Charities Bay AreaEIN 94-2538615 | Health | CA | $5,897,955Mid-sized | 90.60 |
| Ronald McDonald House Charities of Central OhioEIN 31-0890152 | Health | OH | $4,182,872Mid-sized | 89.91 |
| Ronald McDonald House Charities of Chicagoland and Northwest IndianaEIN 36-3532553 | Health | IL | $9,572,947Mid-sized | 85.23 |
| Ronald McDonald House Charities of DenverEIN 84-0728926 | Health | CO | $3,629,604Mid-sized | 96.53 |
| Ronald McDonald House Charities of Greater CincinnatiEIN 31-0965333 | Health | OH | $4,698,361Mid-sized | 92.80 |
| Ronald McDonald House Charities of Kansas CityEIN 43-1190760 | Health | MO | $4,464,880Mid-sized | 94.66 |
| Ronald McDonald House Charities of Oregon and Southwest WashingtonEIN 93-0806912 | Health | OR | $3,559,731Mid-sized | 89.93 |
| Ronald McDonald House Charities of Southern CaliforniaEIN 95-3167869 | Health | CA | $12,073,962Mid-sized | 86.91 |
| Ronald McDonald House Charities of St. LouisEIN 43-1160478 | Health | MO | $4,156,934Mid-sized | 90.61 |
| Ronald McDonald House Charities of the Upper MidwestEIN 41-1313107 | Health | MN | $5,009,431Mid-sized | 91.52 |
| Ronald McDonald House Charities of Western Washington & AlaskaEIN 91-1061043 | Health | WA | $4,295,376Mid-sized | 92.56 |
| Ronald McDonald House HoustonEIN 74-1984499 | Health | TX | $4,489,475Mid-sized | 87.80 |
| Rose Brooks CenterEIN 51-0231573 | Human Services | MO | $6,361,265Mid-sized | 90.48 |
| Rose Foundation for Communities and the EnvironmentEIN 94-3179772 | Environment | CA | $7,448,602Mid-sized | 100.00 |
| Rosie's PlaceEIN 04-2582187 | Human Services | MA | $10,156,194Mid-sized | 91.81 |
| Rotary First HarvestEIN 91-1229941 | Human Services | WA | $11,173,328Mid-sized | 74.75 |
| Roundup River RanchEIN 20-4632248 | Health | CO | $4,409,947Mid-sized | 88.39 |
| Rowan Helping MinistriesEIN 56-1544532 | Human Services | NC | $3,942,429Mid-sized | 88.58 |
| Ruffed Grouse SocietyEIN 54-0846925 | Animals | PA | $5,496,791Mid-sized | 97.23 |
| Ruth & Norman Rales Jewish Family ServiceEIN 65-1115689 | Human Services | FL | $11,478,842Mid-sized | 95.05 |
| RWJ University Hospital FoundationEIN 22-2378007 | Health | NJ | $11,207,502Mid-sized | 85.31 |
| Sabin Vaccine InstituteEIN 06-1389829 | Health | DC | $10,566,671Mid-sized | 89.39 |
| Sacramento Habitat for HumanityEIN 68-0085804 | Community Development | CA | $3,599,686Mid-sized | 85.85 |
| Sacramento Loaves & FishesEIN 68-0189897 | Human Services | CA | $6,533,895Mid-sized | 96.86 |
| Sacramento SPCAEIN 94-1312343 | Animals | CA | $6,899,840Mid-sized | 87.77 |
| Sacramento ZooEIN 94-2861667 | Animals | CA | $7,227,802Mid-sized | 91.17 |
| Sacred Heart CenterEIN 46-0417196 | Human Services | SD | $4,556,342Mid-sized | 68.70 |
| Safari Club International Foundation EIN 86-0292099 | Animals | AZ | $5,600,170Mid-sized | 86.68 |
| Safe & SoundEIN 94-2455072 | Human Services | CA | $5,939,180Mid-sized | 94.17 |
| Safe Kids WorldwideEIN 52-1627574 | Research and Public Policy | DC | $11,486,479Mid-sized | 89.78 |
| Safe Nest: Temporary Assistance for Domestic CrisisEIN 94-2411883 | Human Services | NV | $5,347,813Mid-sized | 76.21 |
| Safe Water NetworkEIN 51-0570455 | International | NY | $4,401,103Mid-sized | 93.60 |
| SafeHaven of Tarrant CountyEIN 75-1670281 | Human Services | TX | $7,907,012Mid-sized | 92.70 |
| SAFEHOMEEIN 48-0917798 | Human Services | KS | $3,636,486Mid-sized | 96.19 |
| SAG-AFTRA FoundationEIN 95-3967876 | Arts, Culture, Humanities | CA | $7,330,396Mid-sized | 91.90 |
| SAGEEIN 13-2947657 | Human and Civil Rights | NY | $10,131,295Mid-sized | 89.23 |
| SAGE EldercareEIN 22-1657929 | Human Services | NJ | $3,605,635Mid-sized | 86.41 |
| Saint Paul Chamber OrchestraEIN 41-0829498 | Arts, Culture, Humanities | MN | $10,773,391Mid-sized | 88.65 |
| Salvador Dalí MuseumEIN 59-2015192 | Arts, Culture, Humanities | FL | $10,091,648Mid-sized | 86.60 |
| Salzburg Global SeminarEIN 04-2200147 | Research and Public Policy | DC | $8,340,061Mid-sized | 78.57 |
| Samaritan HouseEIN 23-7416272 | Human Services | CA | $10,205,305Mid-sized | 94.93 |