| Cobb Futbol Club | 501(c)(3) | 1997 | $6.7 million | $6.1 million | 2025-06 |
| Tsunami Volleyball Inc | 501(c)(3) | 2006 | $6.2 million | $1 million | 2025-06 |
| Next Play 360 | 501(c)(3) | 2019 | $1 million | $521,673 | 2024-12 |
| Georgia Tennis Foundation Inc | 501(c)(3) | 1986 | $545,173 | $975,732 | 2024-12 |
| Cobb Gymnastic Center Parents Club Inc | 501(c)(3) | 1990 | $412,751 | $48,220 | 2026-06 |
| West Cobb Girls Softball Inc | 501(c)(3) | 2024 | $290,471 | $200,236 | 2022-12 |
| East Cobb Fastpitch Inc | 501(c)(3) | 2002 | $227,705 | $384,194 | 2023-12 |
| Walton Raider Dugout Club Inc | 501(c)(3) | 2009 | $213,390 | $212,190 | 2025-06 |
| Sprayberry Touchdown Club Inc | 501(c)(3) | 2005 | $211,694 | $182,644 | 2024-12 |
| Atlanta Figure Skating Club Inc | 501(c)(3) | 1981 | $205,811 | $280,354 | 2025-06 |
| Walton Soccer Booster Club Inc | 501(c)(3) | 2004 | $151,301 | $99,803 | 2026-06 |
| Little League Baseball Inc | 501(c)(3) | 1967 | $144,087 | $137,107 | 2025-09 |
| Weatherstone Swim & Racquet Club Inc | 501(c)(7) | 2012 | $140,909 | $438,914 | 2026-02 |
| Trojan Cheer Booster Club Inc | 501(c)(3) | 2014 | $126,813 | $50,945 | 2025-03 |
| 6-4-3 Foundation Inc | 501(c)(3) | 2014 | $126,662 | $296,512 | 2025-12 |
| Evergreen Society | 501(c)(7) | 2013 | $122,912 | $99,809 | 2024-12 |
| Walton Junior Lacrosse Association Inc | 501(c)(3) | 2010 | $119,076 | $47,923 | 2024-12 |
| Lassiter Junior Booster Club Inc | 501(c)(3) | 2022 | $113,559 | $44,797 | 2024-12 |
| Hoya Youth Football and Cheer Association | 501(c)(3) | 2006 | $110,448 | $20,733 | 2024-12 |
| Walton Youth Running Club | 501(c)(3) | 2024 | $107,622 | $75,528 | 2026-06 |
| Walton Volleyball Booster Club | 501(c)(3) | 2017 | $81,524 | $78,658 | 2025-12 |
| Marietta Cheer Association | 501(c)(3) | 2020 | $78,580 | $1 | 2025-03 |
| North Atlanta Mens Club | 501(c)(7) | 2011 | $67,611 | $73,222 | 2025-09 |
| Cobb Summer Swim League | 501(c)(3) | 2013 | $67,178 | $10,430 | 2025-12 |
| Marietta Athletic Club Inc | 501(c)(3) | 2014 | $66,546 | $18,363 | 2025-12 |
| Walton Swim and Dive Booster Club | 501(c)(3) | 2013 | $55,899 | $67,618 | 2025-08 |
| Sprayberry HS Soccer Booster Club Inc | 501(c)(3) | 2020 | $54,465 | $12,693 | 2025-06 |
| Thunderlax | 501(c)(3) | 2012 | $42,649 | $43,024 | 2025-12 |
| Kell Longhorn Lacrosse Booster Club Inc | 501(c)(3) | 2014 | $29,134 | $14,145 | 2025-05 |
| Wheeler Junior Lacrosse Association Inc | 501(c)(3) | 2020 | $22,195 | $18,587 | 2023-12 |
| Sprabyerry High School Flag Football | 501(c)(3) | 2024 | $19,526 | $47,162 | 2025-06 |
| Sprayberry High School Girls Flag F Ootball Inc | 501(c)(3) | 2025 | $13,715 | $6,899 | 2025-12 |
| Kemotrail Corps Inc | 501(c)(3) | 2006 | $1,733 | $16,512 | 2025-12 |
| Marietta Athletic Foundation Inc | 501(c)(3) | 2016 | $600 | $282 | 2025-12 |
| A2z Foundation Inc | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| American Croatian Baseball Development Association | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Asian American Racquet Sports Assoc Iation | 501(c)(3) | 2026 | | | |
| Atlanta Petanque League Inc | 501(c)(3) | 2019 | | $4,363 | 2024-12 |
| Atlanta Womens Inter Club Golf Association | 501(c)(7) | 2021 | $0 | $0 | 2025-12 |
| Be More Initiative | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Blake Bondurant Youth Baseball Inc | 501(c)(3) | 2025 | | | |
| Blue Devil Soccer Goal Club Inc | 501(c)(3) | 2019 | $0 | $0 | 2025-05 |
| Cadence Development MTB Corp | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Carpenter Charities Inc | 501(c)(3) | 2024 | | | |
| Champion Sports Management LLC | 501(c)(3) | 2025 | | | |
| Chattahooche Plantation Womens Club | 501(c)(7) | 2012 | $0 | $0 | 2025-12 |
| Clan Graham Society Incorporated | 501(c)(3) | 2000 | $0 | $0 | 2025-06 |
| Clan NA Ngael Gaelic Football Club | 501(c)(3) | 2024 | | | |
| Classic Glass Corvette Club | 501(c)(7) | 2020 | $0 | $0 | 2025-12 |
| Cobb LHS Flag Football Corp | 501(c)(3) | 2025 | $0 | $0 | 2026-06 |
| Cobb Swim Coaches Association | 501(c)(3) | 2022 | $0 | $0 | 2026-03 |
| Cyclones Baseball Club | 501(c)(3) | 2026 | | | |
| East Cobb Cheetahs Track Club Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| East Cobb Storm Incorporated | 501(c)(3) | 2017 | $0 | $0 | 2025-07 |
| East Marietta Spikes Baseball Club Inc | 501(c)(3) | 2026 | $0 | $0 | 2021-12 |
| Falcon Woods Fins | 501(c)(3) | 2026 | $0 | $0 | 2025-07 |
| Falcon Woods Recreation & Homeowners Association | 501(c)(7) | 2010 | $0 | $0 | 2026-04 |
| Friends for the East Cobb Park Inc | 501(c)(3) | 2000 | $0 | $0 | 2024-12 |
| Friends of Mabry Park Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Georgia Gladiators Softball Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Georgia High School Water Polo Association Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Georgia Peanuts Baseball Association Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-07 |
| Georgia United Gymnastics Inc | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Giving Fitness | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Gold Mine Region-Marc | 501(c)(7) | 2009 | $0 | $0 | 2025-11 |
| Greyhound Track Field & XC Incorpor Ated | 501(c)(3) | 2026 | | | |
| Gulch Supporters Atl Inc | 501(c)(3) | 2025 | | $35,343 | 2025-01 |
| H A S Foundation | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Harrison High School Softball Booster Club Inc | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Highland Pointe Swim Team | 501(c)(3) | 2026 | | | |
| Hillgrove Youth Football and Cheer Association | 501(c)(3) | 2024 | $0 | $0 | 2026-01 |
| Hustle and Hearts Foundation Inc | 501(c)(3) | 2026 | | | |
| Independence Square Civic and Recreation Association Inc | 501(c)(7) | 2022 | $0 | $0 | 2025-03 |
| International Football Club Atlanta | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Joan of Arc Foundation Inc | 501(c)(3) | 2025 | | $1,811 | 2021-12 |
| Jr Hawks Running Booster Club | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| KNT Devo Inc | 501(c)(3) | 2026 | | | |
| Kell Cheerleading Booster Club | 501(c)(3) | 2023 | $0 | $0 | 2026-04 |
| Kell Swim & Dive Booster Club Org Inc | 501(c)(3) | 2023 | $0 | $0 | 2026-02 |
| Kell Volleyball Booster Club | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Khalil T Hardison Foundation | 501(c)(3) | 2025 | | | |
| Korean American Jiu Jitsu Coalition Inc | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Lady Jacket Booster Club | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Lassiter Striders Track Club Inc | 501(c)(3) | 1998 | $0 | $0 | 2025-06 |
| Lassiter Tennis Booster Club Corporation | 501(c)(3) | 2017 | $0 | $0 | 2026-04 |
| Lassiter Wrestling Booster Club Corporation | 501(c)(3) | 2019 | $0 | $0 | 2025-03 |
| Legacy Foundation Georgia Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Longhorn Basketball Booster Club | 501(c)(3) | 2025 | | | |
| MHS Touchdown Club | 501(c)(3) | 2026 | | | |
| Marietta Tennis Association Incorporated | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| Mash Homebrew Club Inc | 501(c)(7) | 2024 | $0 | $0 | 2024-12 |
| Negus in Nature | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Next Level Football Scouts Inc | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| North Atlanta Road Club Inc | 501(c)(4) | 2012 | $0 | $0 | 2025-12 |
| Parkview 2002 Reunion | 501(c)(7) | 2023 | $0 | $0 | 2025-12 |
| Peach State Roller Derby Inc | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Pope Junior Greyhound Lacrosse Inc | 501(c)(3) | 2018 | | $20,408 | 2024-06 |
| Pope Swim and Dive Booster | 501(c)(3) | 2023 | $0 | $0 | 2025-05 |
| Pro Stock Baseball Foundation Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Prodigy Baseball Club Inc | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Road Runners Club of America | 501(c)(3) | 1976 | $0 | $0 | 2025-12 |
| Schnyder Charitable Foundation Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Southern Trail Association Inc | 501(c)(3) | 2025 | | | |
| Spikes Orange and Navy | 501(c)(3) | 2023 | | $2,200 | 2025-12 |
| Sprayberry High School Cheerleading Booster Club | 501(c)(3) | 2024 | | | |
| Sprayberry Tip Off Club | 501(c)(3) | 2026 | | $11,193 | 2026-05 |
| Sprayberry Track and Field Booster Club Inc | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Sprayberry Volleyball Booster Club | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Staf Athletics LLC | 501(c)(3) | 2019 | $0 | $0 | 2026-07 |
| Throw 1 Deep Club Incorporated | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Tomorrows Champions Inc | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Trojan MTB Corp | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Trojan Soccer Booster Club Inc | 501(c)(3) | 2019 | | $53,939 | 2025-06 |
| WGS30 Inc | 501(c)(3) | 2025 | | | |
| Walton Lady Raider Golf Booster Clu B Inc | 501(c)(3) | 2026 | | | |
| Walton Lady Raiders Tennis Booster Club Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Walton Precision Air Rifle Booster Club Inc | 501(c)(3) | 2018 | $0 | $0 | 2026-06 |
| Walton Raiders Tip-Off Club | 501(c)(3) | 2019 | | $85,647 | 2025-12 |
| West Cobb Cannons Baseball Club Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| Western Dressage Association of Georgia | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Wheeler Cheer Association | 501(c)(3) | 2014 | $0 | $0 | 2023-05 |
| Wheeler Junior Football Inc | 501(c)(3) | 2024 | | | |
| Wheeler Swim and Dive Booster Club | 501(c)(3) | 2015 | $0 | $0 | 2025-05 |
| Wild Ducs Inc | 501(c)(7) | 2014 | $0 | $0 | 2024-04 |
| Windsor Oaks Dolphins Swim Team | 501(c)(3) | 2018 | $0 | $0 | 2026-04 |
| Woodstream Blackjack Hills Homeowners Association Inc | 501(c)(7) | 2012 | $0 | $0 | 2025-12 |