| Bogus Basin Recreational Association Inc | 501(c)(3) | 2005 | $27.4 million | $60.9 million | 2025-05 |
| Wood River Community Young Mens Christian Association Inc | 501(c)(3) | 1995 | $15.3 million | $29.6 million | 2025-12 |
| Hillcrest Country Club Inc | 501(c)(7) | 1941 | $9 million | $11.4 million | 2024-12 |
| Bronco Athletic Association Inc | 501(c)(3) | 1968 | $5.3 million | $702,354 | 2025-06 |
| Western Association of Fish and Wildlife Agencies | 501(c)(4) | 2014 | $5 million | $3.3 million | 2025-06 |
| Idaho Youth Golf Association Inc | 501(c)(3) | 2005 | $2.8 million | $2.9 million | 2024-12 |
| Capitol Youth Sports Association in C | 501(c)(3) | 1993 | $1.7 million | $2.8 million | 2025-06 |
| Greater Boise Aquatics Foundation Inc | 501(c)(3) | 2021 | $1.4 million | $6.4 million | 2024-12 |
| Bogus Basin Sport Education Foundation Inc | 501(c)(3) | 1968 | $824,647 | $540,259 | 2025-07 |
| Meridian Youth Baseballsoftball Inc | 501(c)(3) | 2020 | $733,848 | $239,987 | 2025-09 |
| Idaho Ski Areas Association | 501(c)(6) | 2013 | $574,635 | $319,009 | 2025-06 |
| Idaho Trails Association | 501(c)(3) | 2011 | $485,987 | $427,521 | 2025-09 |
| Game Changers Idaho Inc | 501(c)(3) | 2018 | $373,152 | $128,385 | 2024-12 |
| Boise Youth Amatuer Hockey Association Inc | 501(c)(3) | 2004 | $356,789 | $236,995 | 2025-05 |
| Idaho Storm Football Club | 501(c)(3) | 2022 | $303,552 | $250,670 | 2024-12 |
| North Boise Futbol Club Inc | 501(c)(3) | 2025 | $291,768 | $2,927 | 2025-05 |
| East Boise Youth Baseball &SOFTBALL Inc | 501(c)(3) | 2006 | $232,594 | $150,577 | 2025-09 |
| Treasure Valley Figure Skating Association | 501(c)(3) | 2001 | $229,381 | $123,821 | 2026-03 |
| Southern Idaho Soccer League Inc | 501(c)(4) | 2008 | $195,046 | $600,618 | 2024-12 |
| Boise Curling Club Inc | 501(c)(3) | 2007 | $178,579 | $308,120 | 2026-06 |
| Boise Saddle and Jump Club | 501(c)(3) | 2018 | $176,876 | $54,367 | 2023-12 |
| Boise Developmental Cycling Club | 501(c)(3) | 2006 | $175,104 | $1,039 | 2025-12 |
| Idaho Strike Boys Volleyball Club | 501(c)(3) | 2014 | $169,056 | $11,670 | 2025-07 |
| The Knights of the Gridiron Inc | 501(c)(3) | 2025 | $126,647 | $34,025 | 2025-12 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $119,810 | $65,620 | 2025-09 |
| Borah Football Boosters | 501(c)(3) | 2019 | $109,022 | $77,304 | 2024-12 |
| Camp River Run Inc | 501(c)(3) | 2008 | $108,483 | $41,813 | 2025-12 |
| Boise Ranch Womens Association | 501(c)(7) | 2016 | $103,838 | $3,612 | 2025-12 |
| Timberline High School Athletic Booster Club Inc | 501(c)(3) | 2024 | $99,800 | $65,514 | 2024-06 |
| Porsche Club of America Silver Sage Region Inc | 501(c)(7) | 2022 | $92,909 | $22,209 | 2025-12 |
| Diamond Knights Inc | 501(c)(3) | 2003 | $83,397 | $113,246 | 2025-12 |
| Treasure Valley Youth Lacrosseleague | 501(c)(3) | 2016 | $83,211 | $69,851 | 2025-10 |
| Western Whitewater Association Inc | 501(c)(7) | 2008 | $79,796 | $342,886 | 2024-12 |
| Camping Network for Kiddos Inc | 501(c)(3) | 2000 | $76,032 | $45,917 | 2025-12 |
| Treasure Valley Roller Derby Inc | 501(c)(3) | 2015 | $73,665 | $66,364 | 2025-12 |
| Idaho Cheer University Booster Club Inc | 501(c)(3) | 2025 | $71,947 | $2,190 | 2026-06 |
| Rocky Canyon Sail Toads Inc Co | 501(c)(3) | 1995 | $68,619 | $20,495 | 2024-12 |
| Boise Gems Legion Baseball Inc | 501(c)(3) | 2025 | $68,032 | $7,444 | 2025-12 |
| Magic Valley Basketball Club Inc | 501(c)(3) | 2022 | $62,195 | $2,343 | 2025-12 |
| Ne Idaho Sports Inc | 501(c)(3) | 2022 | $60,777 | $1 | 2025-04 |
| Centennial Baseball Group Inc | 501(c)(3) | 2011 | $57,380 | $79,433 | 2024-09 |
| Idaho Soccer Referee Committee | 501(c)(3) | 2019 | $55,481 | $40,451 | 2024-12 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $49,926 | $103,660 | 2025-09 |
| Idaho State Snowmobile Association | 501(c)(3) | 1999 | $42,912 | $223,484 | 2024-12 |
| Southwest Idaho Mountain Biking Association Inc | 501(c)(3) | 2003 | $42,226 | $234,423 | 2025-12 |
| Bronco Hockey Boosters Inc | 501(c)(3) | 2024 | $30,202 | $43,804 | 2025-05 |
| Southern Idaho Sailing Outreach Corporation | 501(c)(3) | 2018 | $29,918 | $264,420 | 2025-12 |
| Idaho Gem Club Inc | 501(c)(3) | 2000 | $28,869 | $98,683 | 2025-12 |
| Boise Valley Fly Fishermen Inc | 501(c)(3) | 2006 | $27,573 | $87,823 | 2026-06 |
| Yoga Tree of Boise Foundation Inc | 501(c)(3) | 2022 | $16,564 | $33,745 | 2024-12 |
| Conjure Sports Inc | 501(c)(3) | 2024 | $4,647 | $2 | 2024-12 |
| 208 Baseball & Softball | 501(c)(3) | 2026 | | | |
| Amateur Athletic Union of the United States | 501(c)(3) | 1966 | $0 | $0 | 2024-08 |
| Anitque and Classic Boat Society Payette Lakes Chapter Inc | 501(c)(7) | 2019 | $0 | $0 | 2024-12 |
| Athletes Closet Foundation Inc | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Bda Company Support Squad | 501(c)(3) | 2026 | | | |
| Bogus Basin Mountain Hosts | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Boise Area Pickleball Association | 501(c)(3) | 2018 | $0 | $0 | 2025-09 |
| Boise Atv Trail Riders Inc | 501(c)(7) | 2011 | $0 | $0 | 2025-03 |
| Boise Blast Amateur Softball Assoc Inc | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Boise Bombers Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Boise Capitals Baseball Inc | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Boise Climbing Association Inc | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Boise Crush Baseball Club | 501(c)(3) | 2025 | | | |
| Boise Halloween Parade Association | 501(c)(3) | 2025 | | | |
| Boise High School Lacrosse Club Inc | 501(c)(3) | 2009 | $0 | $0 | 2023-12 |
| Boise Pickleball Club | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Boise Rage Youth Softball | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Boise Ranch Golf Course Mens Association | 501(c)(7) | 2015 | $0 | $0 | 2025-12 |
| Boise Rugby | 501(c)(3) | 2023 | | $11,414 | 2024-12 |
| Boise Skateboard Association | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Boise State University Mens Lacrosse Club Booster Association | 501(c)(3) | 2025 | | | |
| Boise Ultimate | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Boise Valley Cycling Association | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Borah Mountain Bike Team Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Borah Softball Boosters Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Brayge Sports Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| CNC Users Group | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Cleats for Feet Foundation | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Coeur United Inc | 501(c)(3) | 2026 | | | |
| Eagle Mustang | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Elevated Plus Inc | 501(c)(3) | 2024 | | | |
| Firecrackers of Idaho Inc | 501(c)(3) | 2026 | | | |
| Fly Fishers of Idaho Incorporated | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Foster Athletics Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| GSG Sports Academy Corp | 501(c)(3) | 2024 | $0 | $0 | 2023-12 |
| Gametime Baseball Club Inc | 501(c)(3) | 2026 | | | |
| Gem State Sports Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Hawgs Baseball - Class of 2033 | 501(c)(3) | 2025 | | | |
| Hawgs Baseball Club | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Heat Softball | 501(c)(3) | 2024 | | | |
| Holiday Parade Association Inc | 501(c)(4) | 2011 | $0 | $0 | 2026-01 |
| Home Together Inc | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Husky Swimming Foundation | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| Icfl Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Idaho Coaches and Officials of Stun T Association | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Idaho District 2 Little League Inc | 501(c)(3) | 2018 | $0 | $0 | 2025-09 |
| Idaho Iron Warriors Motorcycle Club Inc | 501(c)(7) | 2010 | $0 | $0 | 2026-04 |
| Idaho Motorcycle Rodeo Association | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Idaho Snow Riders | 501(c)(4) | 2009 | $0 | $0 | 2025-12 |
| Idaho Sportsmen Access & Opportunity Inc | 501(c)(4) | 2025 | $0 | $0 | 2025-12 |
| Idaho State Bowhunters Inc | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Idaho Steelheads Booster Club | 501(c)(7) | 2013 | $0 | $0 | 2025-09 |
| Idaho Surf Association | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Idaho Whitewater Association Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Idaho Womens Challenge Cup Team | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Ikl Inc | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Includeability | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Intermountain Jet Boat Association Inc | 501(c)(4) | 2011 | $0 | $0 | 2025-12 |
| Intermountain Judo Yudanshakai Inc | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Italian American Club of Boise | 501(c)(7) | 2020 | $0 | $0 | 2025-12 |
| Kathleen Sheppard Foundation Inc | 501(c)(3) | 2012 | $0 | $0 | 2024-12 |
| King Mountain Glider Park Foundation Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Legacy Park Riders Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Legacy Park Trust Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Lions Youth Wrestling LLC | 501(c)(3) | 2024 | | | |
| Live for 227 | 501(c)(3) | 2026 | $0 | $0 | 2025-10 |
| Master Lee S Taekwondo School Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Miami-Dade Scholastic Hockey Association Inc | 501(c)(3) | 2019 | $0 | $0 | 2025-07 |
| Milsim Airsoft Group | 501(c)(7) | 2025 | | | |
| Mini Champs Tennis | 501(c)(3) | 2026 | | | |
| Mountain West Outdoor Club Inc | 501(c)(7) | 2016 | $0 | $0 | 2025-12 |
| North Boise Boltz | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Owyhee Cycling Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Plantation Mens Golf Association | 501(c)(7) | 2017 | $0 | $0 | 2024-12 |
| Play On Recreation Fund | 501(c)(3) | 2026 | | | |
| Quail Hollow Mens Association | 501(c)(3) | 2022 | | $8,946 | 2025-07 |
| Real Soccer Club Rec Inc | 501(c)(3) | 2023 | | $1 | 2023-12 |
| River Club Ladies Association | 501(c)(7) | 2013 | $0 | $0 | 2025-12 |
| Running for the High of It Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Salle of Boise Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Sawtooth Masters Swimming | 501(c)(3) | 2025 | | | |
| Skate Revival | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Snake River Aquarium Society | 501(c)(7) | 2026 | | | |
| Snake River Studebaker Club | 501(c)(7) | 2013 | $0 | $0 | 2024-12 |
| Sole Kids Inc | 501(c)(3) | 2017 | $0 | $0 | 2023-12 |
| Southwest Idaho Cycling Association | 501(c)(3) | 2007 | $0 | $0 | 2024-12 |
| Splash Swim Clinic | 501(c)(3) | 2023 | $0 | $0 | 2023-07 |
| Stanley Sawtooth Festival Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Stanley Winterfest Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Summerwind Skippers Inc | 501(c)(3) | 2003 | $0 | $0 | 2026-08 |
| Swa Athletics Inc | 501(c)(3) | 2024 | | | |
| Swa Hawgs Baseball Idaho | 501(c)(3) | 2024 | | | |
| Swahawgsballclub | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Team Byrds | 501(c)(3) | 2026 | | | |
| Team Tumble Time Co | 501(c)(3) | 2025 | | | |
| Theta Psi House Corporation | 501(c)(7) | 2015 | $0 | $0 | 2025-12 |
| Timberline Boys Lacrosse Club | 501(c)(3) | 2020 | $0 | $0 | 2026-06 |
| Timberline Mountain Bike Team Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Treasure Valley Beekeepers Club | 501(c)(7) | 2013 | $0 | $0 | 2025-12 |
| Treasure Valley Chapter of the Model A Ford Club of America | 501(c)(7) | 2013 | $0 | $0 | 2025-12 |
| Treasure Valley Judo Club Limited | 501(c)(3) | 2016 | $0 | $0 | 2023-12 |
| Treasure Valley Mustang and Ford Club | 501(c)(7) | 2020 | $0 | $0 | 2024-12 |
| Treasure Valley Pirates Baseball CL Ub Corp | 501(c)(3) | 2026 | | | |
| Treasure Valley Psa Inc | 501(c)(7) | 2024 | $0 | $0 | 2025-06 |
| Treasure Valley Sports Leagues | 501(c)(3) | 2026 | | | |
| Treasure Valley Tennis Association | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| Treasure Valley Wine Society Inc | 501(c)(7) | 2019 | $0 | $0 | 2025-12 |
| Tree City Tournaments | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Tree City Track Club Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Tree Town Tennis Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Vets That Ride Idaho | 501(c)(3) | 2025 | | | |
| Vogel Gurkha Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |