| Education Service Center Region II of Texas | 501(c)(3) | 1974 | $24.8 million | $32.9 million | 2025-08 |
| Texas A & M University-Corpus Christi Foundation Inc | 501(c)(3) | 2002 | $8 million | $62 million | 2025-03 |
| Communities in Schools of the Coastal Bend | 501(c)(3) | 1987 | $5.6 million | $3.7 million | 2025-08 |
| Island Foundation Inc | 501(c)(3) | 1995 | $5.3 million | $10.4 million | 2025-08 |
| Buccaneer Commission Inc Memorial Coliseum | 501(c)(3) | 2017 | $5.2 million | $3.8 million | 2025-07 |
| Contractors Safety Council of the Coastal Bend Inc | 501(c)(3) | 1993 | $4.7 million | $24.7 million | 2024-12 |
| Christian Education Activities Corp | 501(c)(3) | 1980 | $3 million | $6.4 million | 2025-06 |
| Citizens for Educational Excellence Inc | 501(c)(3) | 2004 | $2.2 million | $1.8 million | 2025-12 |
| Montessori Association of South Texas | 501(c)(3) | 1987 | $1.9 million | $1.2 million | 2025-08 |
| Montessori School of Corpus Christi | 501(c)(3) | 2011 | $935,876 | $1.1 million | 2025-07 |
| Rise School of Corpus Christi Inc | 501(c)(3) | 2007 | $786,916 | $426,517 | 2025-07 |
| River Hills Christian Academy | 501(c)(3) | 2015 | $714,868 | $31,140 | 2023-06 |
| Hand and Dove Legacy Foundation | 501(c)(3) | 2017 | $429,400 | $4.4 million | 2025-06 |
| Charity League | 501(c)(3) | 1999 | $372,393 | $178,582 | 2025-05 |
| Flour Bluff Athletic Booster Club | 501(c)(3) | 2008 | $324,567 | $107,620 | 2025-06 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $309,163 | $180,828 | 2025-06 |
| American Stem Alliance | 501(c)(3) | 2011 | $238,521 | $224,926 | 2024-12 |
| Corpus Christi Tennis Association | 501(c)(3) | 1960 | $220,834 | $185,809 | 2024-12 |
| Island University Foundation Texas A&M University-Corpus Christ | 501(c)(3) | 2003 | $218,458 | $58,968 | 2025-08 |
| Raps and Apps Inc | 501(c)(3) | 2024 | $199,105 | $22,552 | 2025-12 |
| London Parent-Teacher Organization | 501(c)(3) | 1999 | $186,745 | $116,814 | 2025-06 |
| Calallen Educational Foundation | 501(c)(3) | 2009 | $174,114 | $169,337 | 2025-08 |
| Veterans Memorial HS Screaming Eagles Band Booster | 501(c)(3) | 2015 | $157,481 | $42,315 | 2026-06 |
| West Oso Isd Education Foundation | 501(c)(3) | 2024 | $156,265 | $87,267 | 2025-08 |
| Tuloso-Midway Isd Education Foundation Inc | 501(c)(3) | 2023 | $145,733 | $445,816 | 2024-12 |
| Lead First Foundation of Corpus Christi Texas | 501(c)(3) | 2007 | $136,539 | $71,753 | 2024-12 |
| Calallen Band Boosters | 501(c)(3) | 2008 | $125,785 | $100,665 | 2024-06 |
| Joe A Gonzalez-Jag-Education Is Our Freedom Ged Scholarship Program | 501(c)(3) | 2013 | $114,096 | $57,453 | 2025-12 |
| Homeschool Organization of South Texas | 501(c)(3) | 2012 | $101,008 | $57,419 | 2025-06 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $95,936 | $84,493 | 2024-08 |
| Lulac Council 1 | 501(c)(3) | 2022 | $94,850 | $23,030 | 2024-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $82,200 | $61,440 | 2024-06 |
| Educating Childrens Future Community Center | 501(c)(3) | 2019 | $81,869 | $21,188 | 2024-12 |
| London Independent School District Education Foundation | 501(c)(3) | 2022 | $77,658 | $48,581 | 2025-12 |
| Dr A Martinez Bilingual Academy Inc | 501(c)(3) | 2023 | $50,151 | $20,897 | 2024-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $43,942 | $44,413 | 2025-07 |
| Texas Business and Professional Womens Foundation Inc | 501(c)(3) | 1991 | $33,388 | $617,431 | 2025-06 |
| Carroll High School Athletic Hall of Fame | 501(c)(3) | 2024 | $25,251 | $22,535 | 2025-12 |
| Corpus Christi Montessori School Parent Teacher Organization Inc | 501(c)(3) | 2019 | $17,071 | $17,724 | 2026-06 |
| Veterans Memorial Lady Eagles Booster Club | 501(c)(3) | 2024 | $14,531 | $1 | 2024-12 |
| John Paul Barta Memorial Fund | 501(c)(3) | 2012 | $8,992 | $10,139 | 2025-12 |
| Nueces County A & M Club | 501(c)(3) | 1998 | $8,969 | $34,319 | 2024-12 |
| Alpha Sigma Phi Fraternity Inc | 501(c)(7) | 1941 | $0 | $0 | 2025-06 |
| American Association of University Women Inc | 501(c)(4) | 2010 | $0 | $0 | 2024-06 |
| American Gi Forum of South Texas | 501(c)(3) | 2018 | $0 | $0 | 2025-05 |
| Angel Bright Memorial Foundation | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Arturo Vasquez Cpa Memorial Foundation Inc | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Bap America | 501(c)(3) | 2024 | | | |
| Buccaneer Commission Foundation | 501(c)(3) | 2006 | $0 | $156,541 | 2025-07 |
| CC Lady Tiger Lady Basketball Boost Er Club | 501(c)(3) | 2025 | $0 | $0 | 2026-06 |
| CHS Swimming & Diving Booster Club | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Calallen Wildcat Cheerleader Booster Club | 501(c)(3) | 2011 | $0 | $0 | 2025-04 |
| Carroll Softball Booster Club | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Catalyst Achievement Center | 501(c)(3) | 2026 | | | |
| Coastal Area Users Group Inc | 501(c)(3) | 2000 | $0 | $0 | 2024-12 |
| Coastal Bend Association for Bilingual Education Inc | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Coastal Bend Beekeepers Association | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Dennis Henneke Memorial Scholarship Fund | 501(c)(3) | 2016 | | $828,621 | 2024-12 |
| Desi Foundation | 501(c)(3) | 2015 | $0 | $0 | 2023-12 |
| Drew M Bingham Foundation | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Election Integrity Project of Nueces County | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Empowered Fem | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Flour Bluff Elementary School Pto | 501(c)(3) | 2018 | $0 | $0 | 2026-07 |
| Flour Bluff High School Cheerleader Booster Club | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Foy H Moody Band Booster Club | 501(c)(3) | 2024 | $0 | $0 | 2026-05 |
| Grace and Faith Ministries | 501(c)(3) | 2004 | $0 | $0 | 2025-07 |
| Integrated Steam Coalition | 501(c)(3) | 2026 | | | |
| Its A Kidzz World | 501(c)(3) | 2026 | | | |
| Lady Eagles Soccer Booster Club | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Lulac Council 4444 | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Mary Carroll High School Band Boosters | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Mary Carroll High School Baseball Booster Club | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Music Teachers National Association Inc | 501(c)(3) | 1974 | $0 | $0 | 2025-05 |
| Mustang Softball Booster Club | 501(c)(3) | 2023 | $0 | $0 | 2025-09 |
| Nock Homeschool Collective | 501(c)(3) | 2026 | | | |
| Noor Academy of Corpus Christi | 501(c)(3) | 2025 | | | |
| Palacios Education Foundation | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2026-06 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2026-06 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2026-06 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2026-05 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-07 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-05 |
| Parent Boosters USA Inc | 501(c)(3) | 2005 | | | |
| Powerup | 501(c)(3) | 2016 | $0 | $0 | 2023-12 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2026-06 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2026-05 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2026-07 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2026-06 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2025-06 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2026-06 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2026-06 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2025-05 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2025-07 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2023-05 |
| Pta Texas Congress | 501(c)(3) | 1967 | $0 | $0 | 2026-07 |
| RMHS Buccaneer Cheer Program Booster Club | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Ray Texans Boys Soccer | 501(c)(3) | 2024 | | | |
| Ray Texans Swim & Dive Booster Club | 501(c)(3) | 2025 | $0 | $0 | 2025-05 |
| Richard King High School Band Booster Club | 501(c)(3) | 2018 | $0 | $0 | 2026-06 |
| Richard King High School Royalette Booster Club | 501(c)(3) | 2024 | | | |
| Richard King Soccer Booster Club | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Rma Public Schools Education Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Sembradores de Amistad of Corpus Christi Texas Inc | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Shields To Scholars Vicente Ortiz Jr Scholarship Fund | 501(c)(3) | 2025 | | | |
| Solid Rock Christian Academy | 501(c)(3) | 2015 | $0 | $0 | 2023-12 |
| South Central Federation of Mineral Soc Inc | 501(c)(3) | 2014 | $0 | $0 | 2024-12 |
| South Texas Emergency Wellness | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| South Texas Hamfest Association | 501(c)(3) | 2018 | $0 | $0 | 2025-01 |
| St James Episcopal School of Corpus Christi Inc | 501(c)(3) | 1940 | | | |
| Stephens Charitable Foundation | 501(c)(3) | 2010 | | $2 million | 2025-12 |
| Teen Bookfest By the Bay | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Texan Football Booster Club | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Traveling Library | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| VMHS CC Boys Basketball Booster Club | 501(c)(3) | 2024 | | $15,876 | 2025-12 |
| VMHS Eagle Cheer Booster Club | 501(c)(3) | 2024 | $0 | $0 | 2026-03 |
| VMHS Welding Booster Club | 501(c)(3) | 2024 | | | |
| VMHS Wrestling Booster Club | 501(c)(3) | 2024 | $0 | $0 | 2026-03 |
| Veterans Memorial Baseball | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Veterans Memorial Eagles Football Booster Club | 501(c)(3) | 2015 | $0 | $0 | 2026-05 |
| Veterans Memorial High School Swim Booster Club | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Veterans Memorial High School Volleyball Booster Club | 501(c)(3) | 2024 | | | |
| W B Ray High School Band Boosters Club Inc | 501(c)(3) | 2014 | $0 | $0 | 2023-12 |
| W B Ray Texan Tennis Booster Club | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| W B Ray Texann Booster Club | 501(c)(3) | 2026 | | | |
| Weldon Gibson Elementary Pta | 501(c)(3) | 1967 | $0 | $0 | 2026-07 |
| Yorktown Christian Academy Non Profit Corporation | 501(c)(3) | 2010 | | | |