| Wadsworth AtheneumEIN 06-0653111 | Arts, Culture, Humanities | CT | $13,424,486Mid-sized | 92.19 |
| Wakeman Boys & Girls ClubEIN 06-0662198 | Human Services | CT | $2,794,192Small | 87.65 |
| Walden Woods ProjectEIN 95-4292658 | Environment | MA | $2,083,201Small | 94.47 |
| Walk Thru the BibleEIN 93-0669857 | Religion | GA | $3,715,197Mid-sized | 70.91 |
| Walker Art CenterEIN 41-0693929 | Arts, Culture, Humanities | MN | $31,054,064Large | 86.82 |
| Walking Mountains Science CenterEIN 84-1436731 | Education | CO | $3,079,751Small | 96.59 |
| Walkway Over the HudsonEIN 14-1753502 | Environment | NY | $1,129,219Small | 76.97 |
| WallbuildersEIN 75-1627779 | Human and Civil Rights | TX | $1,906,230Small | 60.90 |
| Wallis Annenberg Center for the Performing ArtsEIN 95-4467830 | Arts, Culture, Humanities | CA | $13,625,146Large | 87.23 |
| Walnut Hills High School Alumni FoundationEIN 31-1449932 | Education | OH | $1,589,994Small | 78.26 |
| Walter Hoving HomeEIN 13-2753267 | Health | NY | $3,054,325Small | 93.67 |
| WAMC/Northeast Public RadioEIN 22-2400593 | Arts, Culture, Humanities | NY | $6,962,673Mid-sized | 85.51 |
| WAND Education FundEIN 04-2751387 | Human and Civil Rights | DC | $882,097Small | 80.88 |
| Warner TheatreEIN 06-1048713 | Arts, Culture, Humanities | CT | $3,428,022Small | 83.44 |
| Warren Family MissionEIN 34-1919612 | Human Services | OH | $1,072,629Small | 53.56 |
| Warren VillageEIN 84-0644270 | Community Development | CO | $4,887,533Mid-sized | 91.46 |
| Warrior Canine ConnectionEIN 45-2981579 | Human Services | MD | $2,358,081Small | 92.22 |
| Warrior Foundation Freedom StationEIN 20-0067633 | Human Services | CA | $972,695Small | 96.66 |
| Warriors & Quiet Waters FoundationEIN 20-8837637 | Human Services | MT | $1,244,717Small | 91.61 |
| Washington Area Women's FoundationEIN 52-2028612 | Human and Civil Rights | DC | $2,904,418Small | 91.40 |
| Washington Business WeekEIN 91-1048245 | Education | WA | $1,085,341Small | 71.49 |
| Washington Environmental CouncilEIN 91-0839385 | Environment | WA | $2,813,289Small | 94.31 |
| Washington Legal FoundationEIN 52-1071570 | Human and Civil Rights | DC | $2,450,099Small | 75.08 |
| Washington Low Income Housing AllianceEIN 91-1599354 | Research and Public Policy | WA | $1,115,090Small | 76.62 |
| Washington Office on Latin AmericaEIN 52-1249353 | International | DC | $3,393,689Small | 94.00 |
| Washington Performing Arts SocietyEIN 52-6062439 | Arts, Culture, Humanities | DC | $7,236,213Mid-sized | 81.71 |
| Washington Policy CenterEIN 91-1752769 | Research and Public Policy | WA | $2,233,003Small | 82.76 |
| Washington Trails AssociationEIN 91-0900134 | Environment | WA | $4,256,309Mid-sized | 94.55 |
| Waste NotEIN 86-0650514 | Human Services | AZ | $6,247,728Mid-sized | 94.69 |
| Water Education FoundationEIN 94-2419885 | Environment | CA | $1,628,426Small | 86.08 |
| Water for GoodEIN 32-0112278 | International | IN | $2,081,524Small | 83.60 |
| Water For PeopleEIN 84-1166148 | International | CO | $19,670,868Large | 94.47 |
| Water for South SudanEIN 20-0291592 | International | NY | $812,042Small | 91.32 |
| Water MissionEIN 57-1116978 | International | SC | $17,801,554Large | 92.92 |
| Water Street MinistriesEIN 23-6004676 | Human Services | PA | $8,892,212Mid-sized | 87.22 |
| Water.orgEIN 58-2060131 | International | MO | $31,722,969Large | 95.99 |
| WaterAid AmericaEIN 30-0181674 | International | NY | $10,641,812Mid-sized | 87.71 |
| Waterfire ProvidenceEIN 22-2951612 | Arts, Culture, Humanities | RI | $2,509,312Small | 86.47 |
| Watoto Child Care Ministry, Inc.EIN 59-3445250 | International | FL | $6,902,949Mid-sized | 86.49 |
| Wave HillEIN 13-6178903 | Environment | NY | $7,249,821Mid-sized | 87.08 |
| WAY Media Inc.EIN 59-2659856 | Religion | CO | $13,639,913Large | 80.12 |
| Way to GrowEIN 71-0956749 | Education | MN | $2,482,645Small | 79.63 |
| Wayfinder Family Services dba Junior Blind EIN 95-1977659 | Human Services | CA | $27,208,764Large | 97.23 |
| Wayne Council of Parent Teacher OrganizationsEIN 22-3282304 | Education | NJ | $1,273,298Small | 63.96 |
| Wayside Christian MissionEIN 61-0667139 | Human Services | KY | $4,993,939Mid-sized | 84.83 |
| Wayside HouseEIN 59-1590644 | Health | FL | $2,998,710Small | 94.74 |
| WBGOEIN 22-2137728 | Arts, Culture, Humanities | NJ | $5,107,014Mid-sized | 85.32 |
| WCPEEIN 56-1061859 | Arts, Culture, Humanities | NC | $1,590,394Small | 62.65 |
| WE ACT for Environmental JusticeEIN 13-3800068 | Community Development | NY | $2,286,133Small | 97.44 |
| We Care ProgramEIN 63-0842141 | Religion | AL | $2,425,602Small | 72.40 |
| WE CharityEIN 16-1533544 | International | NY | $35,143,503Large | 94.74 |
| We Raise FoundationEIN 84-0404924 | Religion | IL | $3,253,785Small | 78.74 |
| Wears Valley RanchEIN 58-1933629 | Human Services | TN | $2,034,657Small | 88.23 |
| WEAVEEIN 94-2493158 | Human Services | CA | $6,294,326Mid-sized | 88.29 |
| Weingarten Children's CenterEIN 94-1706320 | Education | CA | $2,156,711Small | 73.61 |
| Weld Food BankEIN 74-2244826 | Human Services | CO | $21,709,830Large | 100.00 |
| Wellfleet Harbor Actors TheaterEIN 04-3491049 | Arts, Culture, Humanities | MA | $5,347,405Mid-sized | 74.26 |
| Wellspring Family ServicesEIN 91-0567261 | Human Services | WA | $15,734,040Large | 87.71 |
| Wellspring HouseEIN 04-2735048 | Human Services | MA | $2,248,487Small | 91.57 |
| Wellspring LivingEIN 58-2614182 | Human Services | GA | $3,256,039Small | 85.50 |