| Name | Deductibility Code |
| 12-24 Club Inc. | -- |
| Adventures in Christian Kamping | -- |
| Alliance for Historic Wyoming | -- |
| Alzheimers Wyoming | -- |
| American Institute of Banking Casper Chapter | -- |
| American Legion Memorial Bldg Inc. | 6 |
| Arc of Wyoming | 1 |
| Area 76 Alcoholics Anonymous | -- |
| Athlete of the Year Award Inc. | -- |
| Bar Nunn Baseball Inc. | -- |
| Blue Envelope Health Fund Inc. | -- |
| Boys & Girls Clubs of Central Wyoming | -- |
| Boys and Girls Club of Central Wyoming Endowment Foundation Inc. | -- |
| Brain Injury Association of Wyoming | -- |
| Cadoma Foundation | -- |
| Calvary Baptist Church and Ministries | -- |
| Camp Hope Inc. | -- |
| Canoandes Inc. | -- |
| Casper Amateur Hockey Club Inc. | -- |
| Casper Amateur Radio Club | -- |
| Casper Area Transportation Coalition Inc. | -- |
| Casper Artists Guild Inc. | -- |
| Casper Chamber Music Society Inc. | -- |
| Casper Childrens Chorale Incorporated | -- |
| Casper Childrens Theatre Inc. | -- |
| Casper Civic Chorale Inc. | -- |
| Casper College Foundation | -- |
| Casper Community Church | -- |
| Casper Crushers Baseball | -- |
| Casper Family YMCA | -- |
| Casper Humane Society | -- |
| Casper Ice Arena Inc. | -- |
| Casper Legion Baseball Club Inc. | -- |
| Casper Midget Football Association Inc. | -- |
| Casper Mountain Pine Beetle Association | -- |
| Casper Mountain Racers | -- |
| Casper Renegades Baseball Club | -- |
| Casper Rotary Club Foundation Inc. | -- |
| Casper Soccer Club Inc. | -- |
| Casper Swim Club | -- |
| Casper World Series Association | -- |
| Casper World War II Commemorative Association | -- |
| Casper Youth Baseball Inc. | -- |
| Casper Youth Orchestra Inc. | -- |
| Center for Abilities | -- |
| Central Wyoming Astronomical Society | -- |
| Central Wyoming Chapter of the American Petroleum Institute | -- |
| Central Wyoming Counseling Center | -- |
| Central Wyoming Hospice Program | -- |
| Central Wyoming Model Railroad Association | -- |
| Central Wyoming Multi-Purpose Sports Facility Foundation | -- |
| Central Wyoming Rescue Mission | -- |
| Central Wyoming Rescue Mission Foundation | -- |
| Central Wyoming Senior Services Inc. | -- |
| Central Wyoming Spay & Neuter Foundation | -- |
| Centrum for Disability Service | -- |
| Child Development Center of Natrona County | -- |
| Child Development Center of Natrona County Foundation | -- |
| Child Development Center or Natrona County Inc. | -- |
| Children and Nutrition Services | -- |
| Childrens Advocacy Project Inc. | -- |
| Childrens Protection Fund Inc. | -- |
| Childrens Tomato-Tomate Jump Rope Club | -- |
| Christs First Baptist Church of Casper Wyoming | -- |
| Citizens for A Civic Auditorium | -- |
| Citizens United for the Rehabilitation of Errants Wyoming | -- |
| Community Health Center of Central Wyoming Inc. | -- |
| Community of Hope | -- |
| Community Recreation Foundation | -- |
| Conservancy of the Phoenix | -- |
| Constitution Schools Inc. | -- |
| Court-Appointed Special Advocate of Natrona County | -- |
| Cowboy State Games Inc. | -- |
| Crime Stoppers of Central Wyoming Inc. | -- |
| Crimson Dawn Association | -- |
| DAR E Natrona County | 4 |
| Dinamation International Society | -- |
| Don Jackson Ministries Inc. | -- |
| Donald & Nell Spiker Memorial Trust | -- |
| Dont Touch US Inc. | -- |
| Earnest L & Barbara L Wheeler Foundation Inc. | 4 |
| Educational Foundation of Natrona | -- |
| Equality State Policy Center | -- |
| Faith Bible Chapel of Casper | -- |
| Faith Bible Chapel of Casper | -- |
| Family of God Church Inc. | -- |
| Family Promise of Casper Inc. | -- |
| Family Wholeness | -- |
| Fort Caspar Museum Association | -- |
| Foundation for the Episcopal Diocese of Wyoming | -- |
| Foundation of St. Marks Episcopal Church Casper Wy Inc. | -- |
| Frances Feris Memorial Foundation | -- |
| Friends of Natrona County Library | -- |
| Frontier Certified Development Co | -- |
| Ft Caspar Parent-Teacher Organization | -- |
| Gertrude Kamps Memorial Foundation | 4 |
| Girl Scout Council of Wyoming | -- |
| Goodstein Foundation | 4 |
| Grace Chapel African Methodist Episcopal Church | -- |
| Harvest Fields Ministries | -- |
| Harvestime Ministries | -- |
| High Plains Ussa | -- |
| Historic Trails Resource Conservation & Development Area | -- |
| Holy Cross Center Inc. | -- |
| Hope for the Philippines | -- |
| Housing Alternatives Inc. | -- |
| Human Dignity International | -- |
| I-Reach 2 | -- |
| Imitate the Image Ministries | -- |
| Interfaith of Natrona County Inc. | -- |
| Jasons Friends Foundation Inc. | -- |
| Jewish Community Association of Casper | -- |
| Jim and Audrey Bailey Foundation | 4 |
| John P Ellbogen Foundation | 4 |
| Joshuas Storehouse & Distribution Center | -- |
| K I M - Perry Inc. | -- |
| Kelly Walsh Foundation Inc. | 4 |
| Kelly Walsh Quarterback Club | -- |
| Kinskey Mini Mart Foundation | 4 |
| Kiwanis Club of Casper Foundation | -- |
| Laura Law Memorial Fund | -- |
| Learning Junction Childrens Center Inc. | -- |
| Liberty Baptist Church | -- |
| Life Steps Campus Foundation | -- |
| Lions Club of Casper Wyoming | -- |
| Loaves & Fishes Soup Kitchen | -- |
| Loving Hands Foundation | 4 |
| M E Tate Royalty Trust | 4 |
| Make-A-Wish Foundation of Wyoming | -- |
| Martin and Zoe Rathvon Casper College Education Trust | -- |
| Masonic Museums of Wyoming | -- |
| Masterson Family Foundation | 4 |
| Matthew Shepard Foundation | -- |
| McMurry Foundation | 4 |
| Meals on Wheels Foundation | -- |
| Mercer House Inc. | -- |
| Michael Alan Rosen Foundation | 4 |
| Montessori School of Casper | -- |
| Mountain View Organization for Children | -- |
| Murie Audubon Society | -- |
| Nami Wyoming | -- |
| Nami-Casper | -- |
| National Historic Trails Center Foundation Inc. | -- |
| Natrona County 4-H Council | -- |
| Natrona County 4-H Foundation | -- |
| Natrona County Child Protection Team | -- |
| Natrona County Childrens Heart Fund | -- |
| Natrona County Master Gardeners | -- |
| Natrona County Meals on Wheels | -- |
| Natrona County Peace Officers Association Inc. | -- |
| Natrona County Public Library Foundation | -- |
| Natrona County Sheriff Law Enforcement Explorer Post 1 | -- |
| Natrona County Tree Foundation | -- |
| Nchs Millennium Fund | -- |
| Newell B Sargent Foundation | 4 |
| Nicolaysen Art Museum | -- |
| Nutrition & Child Development Inc. | -- |
| Our Fathers House Ministries | -- |
| Our Own Home Ministries International | -- |
| Painted Past Enterprises | -- |
| Paladin Associates Inc. | 4 |
| Peak Scholarship Fund | 4 |
| Pet Ring Foundation | -- |
| Platte River Parkway Trust | -- |
| Powder River Veterans Club Inc. | 6 |
| Rainbow Rescues | 3 |
| Rainbow Rescues | 3 |
| Reach 4a Star Riding Academy Inc. | -- |
| Realtors Housing Assistance Program | -- |
| Renewed Hope Foundation Inc. | -- |
| Rescue Rangers | -- |
| Restoration Ministries | -- |
| Restoration Ranch Retreat Center Inc. | -- |
| Rocky Mountain Assistance | -- |
| Rocky Mountain Men of Integrity | -- |
| Rocky Mountain School of Dance | -- |
| Rogue Valley Cup Soccer Association | -- |
| Ruth R Ellbogen Foundation | 4 |
| Sagewood Parent Teacher Association | -- |
| Sargent Foundation for Episcopal Ministries | -- |
| Serve Wyoming | -- |
| Shekinah Glory Charismatic Church and Teaching Center | -- |
| Shining Star | -- |
| Shrine Bowl of Wyoming Inc. | -- |
| Soldiers of the Light | -- |
| Special Olympics Wyoming Inc. | -- |
| Stacy Marie True Memorial Trust | 4 |
| Stage III Inc. | -- |
| Strong Tower Family Church | -- |
| Sunshine Corner Day Care Center | -- |
| Tate Charitable Foundation | 4 |
| Ted Taylor Foundation Inc. | -- |
| The Caring Center Inc. | -- |
| The Foundation for C A T C | -- |
| The Marriage and Family Resource Center Inc. | -- |
| The Martin Family Foundation | 4 |
| Three Trails Assessment and Resource Service Society Inc. | -- |
| Troopers Drum and Bugle Corps Inc. | -- |
| Troopers Foundation Inc. | 4 |
| True Foundation | 4 |
| Tw Foundation | 4 |
| Two Fly Foundation Inc. | -- |
| United Way of Natrona County Inc. | -- |
| Veterans of Foreign Wars of the United States Dept of Wyoming | 1,6 |
| Vision Therapy Project | -- |
| Vsa Arts of Wyoming | -- |
| Well-Being of Wyoming | -- |
| Wheeler Family Foundation | 4 |
| Wold Foundation | 4 |
| Womans Heart | -- |
| Womens Self-Help Center Inc. | -- |
| Word Christian Fellowship | -- |
| Wymedco Care Inc. | -- |
| Wyoming Aids Project | -- |
| Wyoming Business Coalition on Health Inc. | -- |
| Wyoming Cares | -- |
| Wyoming Childrens Water Festival | -- |
| Wyoming Congress of Parent and Teachers Association | 1 |
| Wyoming Conservation Voters Education Fund | -- |
| Wyoming Contractors Associaton Inc. & Wy St. Council of Carpenters | -- |
| Wyoming Counseling Association | -- |
| Wyoming Dementia Care | -- |
| Wyoming Early Childhood Association | -- |
| Wyoming Early Childhood Partnership | -- |
| Wyoming Fair Housing Inc. | -- |
| Wyoming Field Science Foundation | -- |
| Wyoming Fly Casters Foundation Inc. | -- |
| Wyoming Fosteradoptive Parents Association | 1 |
| Wyoming Geological Association | -- |
| Wyoming Gerontological Association | -- |
| Wyoming Health Fairs | -- |
| Wyoming Heritage Foundation | -- |
| Wyoming High School Activities Association | -- |
| Wyoming Housing Network Inc. | -- |
| Wyoming Independent Living Rehabilitation Incorporated | -- |
| Wyoming Joint Electrical Apprenticeship and Training Trust | -- |
| Wyoming Medical Center Foundation | -- |
| Wyoming Meth Project Imc | -- |
| Wyoming Multiple Schlerosis Institute Inc. | -- |
| Wyoming Partners in Homebuyers Education Inc. | -- |
| Wyoming Professional Assistance Program Inc. A Wyoming Nnprft Corp | -- |
| Wyoming Renal Foundation | -- |
| Wyoming Southern Baptist Convention | -- |
| Wyoming State Predatory Animal Board | -- |
| Wyoming Symphony Orchestra | -- |
| Wyoming Trucking Association Scholarship Trust | -- |
| Wyoming Youth Services Association | -- |
| Your Ride II Inc. | 4 |
| Youth Crisis Center Inc. | -- |
| Zimmerman Family Foundation | 4 |