| 1 | Great Hearts America-texas San Antonio | $137.6M | $137.4M | $354.5M |
| 2 | Parks and Wildlife Foundation of Texas INC Dallas | $73.5M | $19.9M | $91.2M |
| 3 | Alliance to End Plastic Waste INC Austin | $68.3M | $68.3M | $169.8M |
| 4 | Coastal Conservation Association Houston | $51.8M | $27.7M | $46.8M |
| 5 | Dallas Arboretum & Botanical Dallas | $40.0M | $32.2M | $124.3M |
| 6 | Big Country Electric Cooperative INC Roby | $38.9M | $38.6M | $130.4M |
| 7 | Buffalo Bayou Partnership Houston | $32.5M | $31.0M | $127.1M |
| 8 | International Sustainable Energy Foundation Austin | $30.1M | $30.1M | $48.2M |
| 9 | Texas Agricultural Land Trust San Antonio | $28.4M | $27.8M | $8.0M |
| 10 | Memorial Park Conservancy INC Houston | $26.0M | $18.9M | $46.1M |
| 11 | Hermann Park Conservancy Houston | $23.1M | $11.8M | $57.4M |
| 12 | Galveston Bay Foundation Kemah | $20.8M | $20.2M | $48.2M |
| 13 | Coastal Prairie Conservancy Houston | $20.4M | $19.9M | $46.6M |
| 14 | San Antonio Botanical Garden Society INC San Antonio | $17.8M | $15.2M | $47.4M |
| 15 | Moore-odom Wildlife Foundation INC Orange | $13.6M | $0 | $84.9M |
| 16 | Coastal Bend Bays & Estuaries Program Corp Christi | $13.3M | $13.3M | $38.0M |
| 17 | Hill Country Conservancy INC Austin | $13.3M | $12.8M | $37.4M |
| 18 | Visa Vel Foundation Frisco | $11.3M | $0 | $13.7M |
| 19 | Dallas Arboretum Foundation Dallas | $9.9M | $4.4M | $26.2M |
| 20 | Fossil Rim Wildlife Center INC Glen Rose | $9.4M | $8.7M | $24.9M |
| 21 | The Trail Conservancy Austin | $8.4M | $7.8M | $9.9M |
| 22 | Artist Boat INC Galveston | $8.3M | $8.2M | $25.6M |
| 23 | Armand Bayou Nature Center INC Houston | $7.8M | $7.8M | $8.9M |
| 24 | Houston Botanic Garden Houston | $7.8M | $7.6M | $31.9M |
| 25 | American Conservation Foundation INC Gatesville | $7.5M | $7.5M | $6.4M |
| 26 | Timberview Farmstead INC Fort Worth | $6.6M | $6.5M | $12.8M |
| 27 | Renewable Energy for Better Life Foundation Plano | $5.7M | $342K | $1.5M |
| 28 | Taking Care of Texas Austin | $5.1M | $5.0M | $5.7M |
| 29 | Friends of Cibolo Wilderness Boerne | $5.0M | $4.9M | $20.9M |
| 30 | Cca Texas Fund Houston | $4.7M | $3.1M | $20.7M |
| 31 | Friends of the Katy Trail INC Dallas | $4.7M | $4.4M | $5.2M |
| 32 | Southern Star Medical Research Institute Missouri City | $4.7M | $396K | $3.7M |
| 33 | Houston Arboretum & Nature Center Houston | $4.1M | $3.8M | $7.3M |
| 34 | National Network of Abortion Funds Austin | $3.8M | $3.0M | $8.1M |
| 35 | Air Alliance Houston Houston | $3.3M | $3.3M | $4.6M |
| 36 | National Network of Abortion Funds Austin | $3.3M | $2.7M | $6.8M |
| 37 | Urban Harvest INC Houston | $3.3M | $2.3M | $2.3M |
| 38 | Houston Audubon Society Houston | $3.1M | $2.4M | $14.1M |
| 39 | Consumer Energy Alliance INC Houston | $3.0M | $3.0M | $1.6M |
| 40 | Colorado River Land Trust INC Dripping Spgs | $2.9M | $2.9M | $4.6M |
| 41 | Bayou Bend Gardens Endowment Houston | $2.9M | $1.4M | $12.3M |
| 42 | Houston Regional Monitoring Corporation Baytown | $2.7M | $2.7M | $2.1M |
| 43 | Dsc Foundation INC Dallas | $2.6M | $1.9M | $2.7M |
| 44 | Switch Energy Alliance Austin | $2.6M | $2.6M | $3.7M |
| 45 | Pecan Street INC Austin | $2.6M | $2.5M | $2.7M |
| 46 | Texas Water Trade Austin | $2.5M | $2.5M | $3.4M |
| 47 | Blockchain for Energy INC Houston | $2.5M | $2.5M | $826K |
| 48 | San Antonio River Foundation San Antonio | $2.5M | $1.9M | $5.3M |
| 49 | Bayou Land Conservancy Spring | $2.3M | $2.3M | $4.2M |
| 50 | Womens Council Garden of the Dallas Arboretum & Botanical Society INC Dallas | $2.3M | $588K | $4.7M |