| Name | Deductibility Code |
| 4-H Mountain Camp Inc. | -- |
| Advocacy & Resource Center | -- |
| Alternative Elder Living Inc. | -- |
| American Legion Baseball Incorporated | -- |
| Association for the Advancement of International Education | -- |
| Bf & Rose H Perkins Foundation | 4 |
| Big Horn Equestrian Center Inc. | -- |
| Bighorn Audubon Society | -- |
| Building Bridges Ministry | -- |
| C B S Kids Inc. | -- |
| Center for Dispute Solutions Inc. | -- |
| Center for Strength Based Practices | -- |
| Chandler H Kibbee and Mercedes K Kibbee Foundation for Children | -- |
| Child Advocacy Services of the Big Horns | -- |
| Child Development Center | -- |
| Children Horses & Adults in Partnership for Therapeutic Riding | -- |
| Childrens Center | -- |
| Christ Community Church | -- |
| Christian Life Church | -- |
| Civic Theatre Guild | -- |
| Cloud Peak Transitions Inc. | -- |
| Colorado Wyoming Association of Museums | -- |
| Cornerstone Community Church of Sheridan | -- |
| Dodd & Dorothy L Bryan Foundation | 4 |
| Dog & Cat Shelter Inc. | -- |
| Downtown Sheridan Association | -- |
| E C & Edith M Gwillim Memorial Fund | 4 |
| Earl and Bessie Whedon Cancer Detection Foundation | 3 |
| Edward J Redle Memorial Foundation | 4 |
| Energy Share of Wyoming Inc. | -- |
| Eyas Foundation | 4 |
| Family Planning of the Big Horns Inc. | -- |
| Fort Mackenzie High Schoolthe Wright Place Parents for Academic | -- |
| Fort Phil Kearney Bozeman Trail Association | -- |
| Free Clinic of Sheridan County Inc. | -- |
| Friends of the Sheridan County Public Library Inc. | -- |
| Frontier Heritage Alliance | -- |
| Gary & Wanda Walsh Private Foundation | 4 |
| Genesis Foundation | -- |
| George E Ewan Family Foundation Inc. | 4 |
| Gerald F & Rose M Kaul Foundation Inc. | 4 |
| Grateful Hearts Foundation | 4 |
| Harry and Thelma Surrena Memorial Fund | 4 |
| Herbert & Dorothy Zullig Foundation | 4 |
| Higgins Foundation | 4 |
| Holy Name School Foundation | 4 |
| Homer A Scott and Mildred S Scott Foundation | 4 |
| Homer A Scott Jr & Janet E Scott Family Foundation | 4 |
| International Association of Turtles | -- |
| Intertribal Addictions Recovery Organization Inc. | -- |
| Jodis Heart Inc. | -- |
| Joe and Arlene Watt Foundation Inc. | 4 |
| Joe F and Roberta H Napier Foundation | 4 |
| Joeys Foundation Inc. | -- |
| John & Helen Ilsley Family Foundation | 4 |
| John B & Dorothy D Duncan Music for Sheridan Foundation | 4 |
| Joy Junction Childrens Church Inc. | -- |
| Kelly Schreibeis Memorial Foundation | -- |
| Knights Foundation | 4 |
| Legacy Ministries | -- |
| Life Link of Sheridan County | -- |
| Like M A G I C | -- |
| Literacy Volunteers of Northern Wyoming Inc. | -- |
| Louis W Horvath Foundation Inc. | 4 |
| Lunch Together Soup Kitchen | -- |
| Marion Day Care Center | -- |
| Marna M Kuehne Foundation | -- |
| Meadowlark Foundation | 4 |
| Mercy and Grace Ministries Inc. | -- |
| Muriel and Seymour Thickman Family Charitable Foundation | 4 |
| National American Indian Alaskan and Hawaiian Educational Dev Ctr | -- |
| National Federation of the Blind of Wyoming | -- |
| National Society of the Colonial Dames of America State of Wyoming | -- |
| Noahs Ark Christian Preschool Inc. | -- |
| Normative Services Inc. | -- |
| North Eastern Wyomings Rehabilitation Foundation | -- |
| Northern Wyoming Community College Foundation | -- |
| Northern Wyoming Mental Health Center Community Foundation Inc. | -- |
| One 4 Him Ministries | -- |
| Our Camp Inc. | -- |
| Parenteen | -- |
| Pass Creek Foundation | -- |
| Payee Assistance Management Inc. | -- |
| Pearson Ministries Incorporated | -- |
| Powder River Basin Resource Council | -- |
| Rain Kids Inc. | 4 |
| Raising Readers in Wyoming | -- |
| Raising Readers in Wyoming | -- |
| Rebuilding Together Sheridan County | -- |
| Rehabilitation Enterprises of North Eastern Wyoming | -- |
| Ride for Him Ministries | -- |
| Riehm Family Foundation Inc. | 4 |
| Robert and Eleanor Demple Family Foundation | 4 |
| Sagebrush Cowboyography Association Inc. | -- |
| Schuchert Foundation | 4 |
| Senior Citizens Council | -- |
| Seven Pillars Foundation | 4 |
| Sheridan Area Search and Rescue of Sheridan County Wyoming Inc. | -- |
| Sheridan Artists Guild Et Al | -- |
| Sheridan Arts Council | -- |
| Sheridan Church of Christ | -- |
| Sheridan Cloud Peak Ranch Foundation | 4 |
| Sheridan Community Education Foundation Inc. | -- |
| Sheridan Community Land Trust | -- |
| Sheridan Community Tennis Association | -- |
| Sheridan County Babe Ruth Baseball | -- |
| Sheridan County Chamber of Commerce Foundation | -- |
| Sheridan County Christian School | -- |
| Sheridan County Extension Homemakers Council Inc. | -- |
| Sheridan County Fairgrounds Foundation | -- |
| Sheridan County Genealogical Society Inc. | -- |
| Sheridan County Library Foundation Inc. | -- |
| Sheridan County Master Gardiners Association | -- |
| Sheridan County Memorial Hospital Foundation | -- |
| Sheridan County Soccer Association | -- |
| Sheridan Heritage Center | -- |
| Sheridan High Booster Club | -- |
| Sheridan Housing Action Committee | -- |
| Sheridan Johnson County Opportunity Project for Education | -- |
| Sheridan Medical Foundation | 4 |
| Sheridan on Skates | -- |
| Sheridan Post 7 Baseball Boosters Inc. | -- |
| Sheridan Quality Child Care Initative | -- |
| Sheridan Rotary Foundation Inc. | -- |
| Sheridan Scuba Search and Recovery | -- |
| Sheridan Stadium Foundation Inc. | -- |
| Sheridan USA Boxing Association | 4 |
| Soka Piiwa Foundation | 4 |
| Tandem Productions | -- |
| The Christine Gempp Love Foundation | 4 |
| The Roberts Family Foundation | 4 |
| The William F Welch and Lorene W Welch Foundation | 4 |
| Thorne-Rider Foundation | 4 |
| Toms Payee Service Inc. | -- |
| Trail End Guilds Inc. | -- |
| Transportation Alternatives Coalition | -- |
| Vernon S and Rowena W Griffith Foundation | 4 |
| Veterans of Foreign Wars Department of Wyoming | 2,6 |
| Vision Beyond Borders Inc. | -- |
| Walt & Olga Pilch Foundation | 4 |
| Wars Voices | -- |
| Wellness Council of Sheridan County Inc. | -- |
| Whitney Benefits Inc. | 4 |
| Witzel Family Foundation | 4 |
| Wyo Theatre Inc. | -- |
| Wyoming All-Star Soccer Program | -- |
| Wyoming Association for Career and Technical Education Inc. | -- |
| Wyoming Homemakers | -- |
| Wyoming Inmate Ministries | -- |
| Wyoming Substance Abuse Treatment and Recovery Center | -- |
| Wyoming Western Film Festival | 4 |
| Wyoming Wild Horses Society | -- |
| Wyoming Wilderness Association | -- |
| Young Mens Christian Association Sheridan County | -- |
| Youth Incorporated | 4 |