| Gulf of Mexico AllianceOcean Springs | Form 990 | $5,320,625FY2025 |
| Delta Wildlife IncStoneville | Form 990 | $3,960,170FY2024 |
| Mississippi River TRStoneville | Form 990 | $3,219,737FY2024 |
| Land TR for the MS Coastal PlainBiloxi | Form 990 | $2,539,078FY2024 |
| Mississippi Land TrustStoneville | Form 990 | $1,068,501FY2024 |
| National Oceans and Applications Research CenterKiln | Form 990 | $842,944FY2024 |
| Mississippi Association of Conservation Districts IncJackson | Form 990 | $720,384FY2025 |
| People Against LitterMadison | Form 990 | $485,287FY2025 |
| Greater Eastover Foundation IncJackson | Form 990 | $404,732FY2024 |
| Education Economics Environmental & Health Organization EeechoGulfport | Form 990 | $353,515FY2025 |
| Trails of MississippiMadison | Form 990 | $243,608FY2024 |
| Clinton Community Nature Center Association IncClinton | Form 990-EZ | $170,262FY2025 |
| 2C Mississippi Towards Sustainable Educated & Empowered MisssissippiRidgeland | Form 990-EZ | $165,324FY2024 |
| Mississippi Urban Forest CouncilMadison | Form 990-EZ | $161,207FY2025 |
| Miss Gulf Fishing Banks IncBiloxi | Form 990-EZ | $159,574FY2025 |
| Clean Up Jackson IncJackson | Form 990-EZ | $147,049FY2025 |
| Lower Mississippi River Conservation CommitteeVicksburg | Form 990-EZ | $137,344FY2025 |
| Mississippis Lower Delta PartnershipRolling Fork | Form 990-EZ | $130,129FY2024 |
| Global ConcernBrandon | Form 990-EZ | $112,183FY2025 |
| Cherokee Concerned CitizensPascagoula | Form 990-EZ | $109,485FY2025 |
| Garden Club of Jackson IncJackson | Form 990-EZ | $100,527FY2025 |
| Garden Clubs of Miss IncMerigold | Form 990 | $86,470FY2026 |
| Mississippi Master Gardener Associ-Columbus | Form 990-EZ | $74,985FY2025 |
| Friends of Chakchiuma SwampGrenada | Form 990-EZ | $74,096FY2025 |
| North Central Mississippi Resource Conservation & Development Area inNew Albany | Form 990-EZ | $66,819FY2025 |
| Greenville Garden ClubGreenville | Form 990-N | No figure |
| Institute for Compatible DevelopmentMoss Point | Form 990 | $26,084FY2025 |
| Safety City IncPearl | Form 990-N | No figure |
| Keep Jackson BeautifulJackson | Form 990-N | No figure |
| Oktibbeha County Master Gardeners IncStarkville | Form 990-N | No figure |
| Feathers & FuturesNatchez | Form 990-N | No figure |
| Old Mountain Arboretum IncWinona | Form 990-N | No figure |
| Keep Pike County Beautiful IncMcComb | Form 990-N | No figure |
| Desoto County Master Gardeners AssoNesbit | Form 990-N | No figure |
| Long Beach Garden ClubLong Beach | Form 990-N | No figure |
| Park Acquisition CorporationWoodville | Form 990-N | No figure |
| North Gulfport Community Land Conservancy IncGulfport | Form 990-N | No figure |
| Deer Creek Watershed AssociatonArcola | Form 990-N | No figure |
| Laurel Garden Club IncLaurel | Form 990-N | No figure |
| Citizens for Economic Empowermentdevelopment and a Air Water and SoiJackson | Form 990-N | No figure |
| Friends of Legion State ParkLouisville | Form 990-N | No figure |
| For the ChildrenPhiladelphia | Form 990-N | No figure |
| International Cooperation of Environmental Youth IncCanton | Form 990-N | No figure |
| Gulf Coast Environmental Labor CoalitionVancleave | Form 990-N | No figure |
| Barnett Reservoir FoundationBrandon | Form 990-N | No figure |
| Keep the Reservoir BeautifulBrandon | Form 990-N | No figure |
| Memphis Town Community Action GroupColumbus | Form 990-N | No figure |
| Friends of the EnvironmentAlligator | Form 990-N | No figure |
| Friends of the Tishomingo State ParkBelmont | Form 990-N | No figure |
| Center for Environmental & Economic Justice IncBiloxi | Form 990-N | No figure |