| 1 | Chantecaille Family Foundation Greenwich | $26.1M | $0 | $154.4M |
| 2 | Ocean Exploration Trust INC New London | $19.3M | $19.3M | $12.1M |
| 3 | The Connecticut Audubon Society Incorporated Fairfield | $14.1M | $8.4M | $71.9M |
| 4 | Save the Sound INC New Haven | $12.5M | $7.9M | $20.8M |
| 5 | Inclusive Prosperity Capital INC Hartford | $10.8M | $10.8M | $39.2M |
| 6 | Northwest Connecticut Land Conservancy INC Kent | $10.0M | $9.6M | $83.2M |
| 7 | Keep America Beautiful INC Stamford | $7.9M | $7.7M | $4.8M |
| 8 | Earthplace the Nature Discovery Center INC Westport | $5.2M | $5.2M | $7.7M |
| 9 | Connecticut Citizen Research Group INC Hartford | $4.3M | $4.3M | $4.1M |
| 10 | Steep Rock Association INC Washington Dt | $3.9M | $3.0M | $28.9M |
| 11 | Roxbury Land Trust INC Roxbury | $3.8M | $1.4M | $33.4M |
| 12 | Sound Waters INC Stamford | $3.8M | $3.3M | $17.8M |
| 13 | Connecticut Land Conservation Council INC Middletown | $3.7M | $3.7M | $4.4M |
| 14 | New Pond Farm Education Center INC West Redding | $3.6M | $913K | $9.7M |
| 15 | Ct Energy Efficiency Finance Company Wallingford | $3.6M | $3.6M | $40.8M |
| 16 | Stamford Land Conservation Trust INC Stamford | $3.3M | $3.3M | $60.9M |
| 17 | Sharon Land Trust INC Sharon | $3.0M | $3.0M | $21.9M |
| 18 | Aspetuck Land Trust INC Fairfield | $2.9M | $2.8M | $64.4M |
| 19 | New Canaan Nature Center Association INC New Canaan | $2.6M | $2.3M | $4.0M |
| 20 | Environmental Learning Centers of Connecticut INC Bristol | $2.6M | $2.3M | $16.1M |
| 21 | Madison Land Conservation Trust INC Madison | $2.3M | $866K | $793K |
| 22 | Wyndham Land Trust INC Pomfret Ctr | $2.3M | $2.1M | $20.2M |
| 23 | Wholesome Wave INC Bridgeport | $2.1M | $2.1M | $912K |
| 24 | Climate Change for All Educators INC New Canaan | $2.1M | $1.5M | $0 |
| 25 | Housatonic Valley Association INC Cornwall Brg | $1.8M | $1.7M | $1.8M |
| 26 | Flanders Nature Center INC van Vleck Farm Woodbury | $1.7M | $1.7M | $12.9M |
| 27 | The Greenwich Land Trust INC Greenwich | $1.7M | $1.0M | $115.0M |
| 28 | Connecticut Resource Conservation and Development Area INC Haddam | $1.7M | $1.7M | $1.3M |
| 29 | Denison Pequotsepos Nature Center INC Mystic | $1.6M | $1.5M | $10.7M |
| 30 | Lyme Land Conservation Trust INC Lyme | $1.6M | $1.2M | $13.0M |
| 31 | Conneticut Maritime Foundation INC Mystic | $1.6M | $0 | $331K |
| 32 | Avalonia Land Conservancy INC Ledyard | $1.4M | $1.4M | $25.3M |
| 33 | Newtown Forest Association INC Newtown | $1.4M | $1.4M | $8.8M |
| 34 | Greater Bridgeport Communityenterprises INC - Gbce Bridgeport | $1.4M | $1.4M | $1.2M |
| 35 | Darien Nature Center INC Darien | $1.3M | $1.2M | $2.8M |
| 36 | White Memorial Conservation Center INC Litchfield | $1.3M | $1.0M | $9.4M |
| 37 | Essex Land Trust INC Essex | $1.3M | $911K | $10.6M |
| 38 | Pratt Nature Center INC New Milford | $1.3M | $814K | $3.2M |
| 39 | Bartlett Arboretum Association INC Stamford | $1.2M | $974K | $2.4M |
| 40 | Granby Land Trust INC Granby | $1.0M | $1.0M | $15.0M |
| 41 | Renew Northeast INC Madison | $1.0M | $1.0M | $1.0M |
| 42 | East Haddam Land Trust INC East Haddam | $1.0M | $972K | $4.3M |
| 43 | Westport Womans Club INC Westport | $1.0M | $525K | $2.4M |
| 44 | The Last Green Valley INC Danielson | $1.0M | $1.0M | $1.3M |
| 45 | Litchfield Land Trust INC Litchfield | $1.0M | $999K | $12.9M |
| 46 | Old Stone Mill Foundation Trust Colchester | $1.0M | $0 | $3.2M |
| 47 | Reforest the Tropics INC Mystic | $965K | $965K | $1.5M |
| 48 | Wilton Land Conservation Trust Wilton | $872K | $309K | $3.3M |
| 49 | Gather New Haven New Haven | $822K | $801K | $1.8M |
| 50 | Woodcock Nature Center INC Wilton | $821K | $772K | $738K |