Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Ocean Exploration Trust IncNew London | Form 990 | $19,281,365FY2024 |
| Inclusive Prosperity Capital IncHartford | Form 990 | $10,811,577FY2024 |
| Save the Sound IncNew Haven | Form 990 | $9,940,222FY2025 |
| Northwest Connecticut Land Conservancy IncKent | Form 990 | $9,554,105FY2024 |
| The Connecticut Audubon Society IncorporatedFairfield | Form 990 | $8,368,989FY2025 |
| Keep America Beautiful IncStamford | Form 990 | $7,716,814FY2024 |
| Garden Conservancy IncGreenwich | Form 990 | $7,707,472FY2025 |
| Steep Rock Association IncWashington Depot | Form 990 | $4,555,125FY2025 |
| Connecticut Citizen Research Group IncHartford | Form 990 | $4,287,222FY2024 |
| Earthplace the Nature Discovery Center IncWestport | Form 990 | $4,054,582FY2025 |
| Connecticut Land Conservation Council IncMiddletown | Form 990 | $3,672,440FY2024 |
| CT Energy Efficiency Finance CompanyWallingford | Form 990 | $3,551,308FY2025 |
| Sound Waters IncStamford | Form 990 | $3,250,088FY2025 |
| Sharon Land Trust IncSharon | Form 990 | $3,043,538FY2024 |
| Aspetuck Land Trust IncFairfield | Form 990 | $2,801,096FY2024 |
| Land Trust of Darien IncDarien | Form 990 | $2,779,293FY2025 |
| Winchester Land Trust IncWinchester Center | Form 990 | $2,680,479FY2025 |
| Wyndham Land Trust IncPomfret Center | Form 990 | $2,376,094FY2025 |
| New Canaan Nature Center Association IncNew Canaan | Form 990 | $2,345,072FY2025 |
| Housatonic Valley Association IncCornwall Bridge | Form 990 | $2,266,388FY2025 |
| Wholesome Wave IncBridgeport | Form 990 | $2,117,782FY2024 |
| Bridgewater Land Trust IncBridgewater | Form 990 | $2,001,600FY2025 |
| Roxbury Land Trust IncRoxbury | Form 990 | $1,874,806FY2025 |
| Flanders Nature Center Inc Van Vleck FarmWoodbury | Form 990 | $1,705,867FY2024 |
| Connecticut Resource Conservation and Development Area IncHaddam | Form 990 | $1,657,842FY2025 |
| Holcomb Farm IncWest Granby | Form 990 | $1,635,506FY2025 |
| Climate Change for All Educators IncNew Canaan | Form 990 | $1,513,342FY2024 |
| Avalonia Land Conservancy IncLedyard | Form 990 | $1,439,445FY2024 |
| Denison Pequotsepos Nature Center IncMystic | Form 990 | $1,420,663FY2025 |
| Greater Bridgeport Communityenterprises Inc - GbceBridgeport | Form 990 | $1,367,047FY2024 |
| Bartlett Arboretum Association IncStamford | Form 990 | $1,340,654FY2025 |
| New Pond Farm Education Center IncWest Redding | Form 990 | $1,305,162FY2025 |
| White Memorial Conservation Center IncLitchfield | Form 990 | $1,296,549FY2025 |
| Environmental Learning Centers of Connecticut IncBristol | Form 990 | $1,224,758FY2025 |
| Lyme Land Conservation Trust IncOld Lyme | Form 990 | $1,208,276FY2025 |
| Darien Nature Center IncDarien | Form 990 | $1,175,322FY2024 |
| North Central Conservation District IncVernon | Form 990 | $1,125,655FY2025 |
| The Greenwich Land Trust IncGreenwich | Form 990 | $1,015,748FY2024 |
| The Last Green Valley IncDanielson | Form 990 | $1,007,043FY2025 |
| Litchfield Land Trust IncLitchfield | Form 990 | $999,355FY2024 |
| East Haddam Land Trust IncEast Haddam | Form 990 | $972,192FY2024 |
| Reforest the Tropics IncMystic | Form 990 | $964,842FY2024 |
| Colebrook Land Conservancy IncColebrook | Form 990 | $930,467FY2025 |
| Essex Land Trust IncEssex | Form 990 | $911,371FY2024 |
| Madison Land Conservation Trust IncMadison | Form 990 | $866,125FY2024 |
| Greenwich Botanical Center IncCos Cob | Form 990 | $820,650FY2025 |
| Pratt Nature Center IncNew Milford | Form 990 | $814,239FY2024 |
| Gather New HavenNew Haven | Form 990 | $800,527FY2024 |
| Woodcock Nature Center IncWilton | Form 990 | $771,667FY2024 |
| Global 2050 IncOld Lyme | Form 990 | $746,290FY2025 |
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