| Name | Deductibility Code |
| Albert & Rosemond A Moss Foundation | 4 |
| American Alliance of Jews and Christians Inc. | -- |
| Armenian Apostolic Church of Seattle | -- |
| Arts Circle | -- |
| Awamaki US | -- |
| Bezos Family Foundation | 4 |
| Bianco Foundation for Jewish Causes | 4 |
| Biblical Blueprint Institute | -- |
| Bogey Bear Foundation | -- |
| Bridges to Understanding | -- |
| Byron W and Alice L Lockwood Foundation | 4 |
| Carl & Norma Alt Foundation | 4 |
| Center for Natural Resource Policy | -- |
| Center for Researching Health Outcomes | -- |
| Check Your Boobies | -- |
| Childrens Institute for Learning Differences | -- |
| China Tomorrow Education Foundation | -- |
| Chinese Parents Service Organizations Inc. | -- |
| Chong Wa Education Society | -- |
| Congregation Shevet Achim | -- |
| Country Village Day School Inc. | -- |
| Covenant Shores | -- |
| Dana and Shane Kim Foundation | 4 |
| Daughters of Pioneers of Washington Seattle-1 | -- |
| Eastside Football Club | -- |
| Eastside Music Festival Foundation | -- |
| Educational Tutoring and Consulting Inc. | -- |
| Emmanuel Day School | -- |
| Ernest Becker Foundation | -- |
| Evening of Hope A Seattle Hotel Association Foundation | -- |
| Evergreen Water Polo Club | -- |
| Fine Arts Advisory Committee | -- |
| Flight Plan | -- |
| Foundation for International Health Care | -- |
| Foundation of Fbi Alumni | -- |
| Foundation of the Rotary Club of Mercer Island | -- |
| Frazier Family Foundation | 4 |
| Freedom Master Mission | 4 |
| French American School of Puget Sound | -- |
| Friends of Luther Burbank Park | -- |
| Friends of North of the Narrows Fire District | -- |
| Friends of the Mercer Island Library | -- |
| George A and Marion M Wilson Foundation | 4 |
| Harlowe Hardinge Foundation | 4 |
| Hawkanson Family Foundation | 4 |
| Hebrew Free Loan Association | -- |
| Hendricks-Felton Foundation | 4 |
| Herzl Memorial Park Cemetery Association | 6 |
| Herzl-Ner Tamid Conservative Congregation | -- |
| Herzl-Ner Tamid Endowment Foundation | -- |
| Higgins Family Foundation | 4 |
| Highreach Press | -- |
| Hill Family Foundation | 4 |
| His Foundation | 4 |
| Homes Without Boundaries | -- |
| Inner-City Vision Ministries | -- |
| Island Choral Experience | -- |
| Island Vision | -- |
| Islander Middle School Ptsa Mercer Island Council Z 9 37 | -- |
| Joint Heirs Ministry | 4 |
| Kolobok Arts Inspiration Assn | 4 |
| Krishna D Vara Memorial Fund | -- |
| Lee Family Foundation | 4 |
| Loquin | -- |
| Lovsted Family Charitable Foundation | 4 |
| Lutheran Womens Caucus | 1 |
| Madremonte Foundation | 4 |
| Maitreya Charity | -- |
| Marcia Paulsell Zech Foundation | 4 |
| Marsha S Glazer Fund | 4 |
| Medical Education Scholarship Aid | 4 |
| Mercer Island Baseball Booster Club | -- |
| Mercer Island Boys Basketball Booster Club | -- |
| Mercer Island Community Fund | -- |
| Mercer Island Girls Basketball Booster Club | -- |
| Mercer Island Lacrosse Club | -- |
| Mercer Island Play Center Parents | -- |
| Mercer Island Preschool Association | -- |
| Mercer Island Saferides | -- |
| Mercer Island Schools Foundation | -- |
| Mercer Island Sister City Association | -- |
| Mercer Island Visual Arts League | -- |
| Mercer Island Volunteer Firemens Association | 6 |
| Mercer Island Water Polo Club | -- |
| Mercer Island Womens Lacrosse Club | -- |
| Mercer Island Youth and Family Services Foundation | -- |
| Mercer Island Youth Soccer Club | -- |
| Mica Community Trust Fund for Affordable Housing | -- |
| Mujeres of the Northwest | -- |
| Mygirlsblood A Nonprofit Corporation | -- |
| National Charity League - Evergreen Chapter | -- |
| National Charity League - Lake Washington Chapter | -- |
| New Hope International Church | -- |
| New Seed International | -- |
| Newman Family Foundation | 4 |
| Noel-Shoemaker Family Foundation | 4 |
| North Star Council for Alcohol and Drug Education | 4 |
| Northwest Academy for Continuous Education | -- |
| One Step at A Time | -- |
| Our Lady of Mt. Carmel Center | -- |
| Pacific Northwest Electron Microscopy Society | -- |
| Pipe Organ Foundation | -- |
| Pixie Hill Preschool | -- |
| Privett Academy | -- |
| Puget Sound Anglers of Lake Washington | -- |
| Raman Family Foundation | 4 |
| Samuel & Althea Stroum Jewish Community Center | -- |
| Schulze Family Foundation | 4 |
| Seattle Gynecological Society | -- |
| Seattle Jazz Guitar Society | -- |
| Senior Foundation of Mercer Island | -- |
| Sepic Family Foundation | 4 |
| Simperman-Corette Foundation | 4 |
| Society for Pacific Coast Native Iris | -- |
| Spitzer Foundation | 4 |
| Spring Fam Trail Tr | -- |
| Summit Family Irrv Washington Foundation Trust | 4 |
| Sunnybeam School of Mercer Island | -- |
| The E-Boys Club | 4 |
| The Lairmont Piano Series | -- |
| The Lopus Foundation Charitable Trust | 4 |
| The Sanford Foundation | 4 |
| The Stone Flower Foundation | -- |
| The Vijay & Sita Vashee Foundation | 4 |
| Thrasher Koffey Foundation | 4 |
| Traditional Reform Synagogue of Greater Seattle Temple Bnai Torah | -- |
| Tusubira - We Have Hope Inc. | -- |
| Van Diest Ministries Incorporated | 4 |
| Vishal Himalaya Foundation | -- |
| Washington State Obstetrical Assn | -- |
| Washington Wines Festival | -- |
| Wayne Leeann Foundation | 4 |
| Wenaweser Foundation | 4 |
| Yeshivat or Hazafon Rabbinical College | -- |
| Yi Sport Youth Development Inc. | -- |
| Youth Theater Northwest | -- |