A river running through a deep pine forest valley
Foundation Lookup

Cause EnvironmentState Connecticut305 funders

Foundations that fund environment in Connecticut

305 private foundations based in Connecticut with a return in the last two years gave $14.9 million to environment organizations in 775 grants. The median grant was $3,000, and 57 of these foundations accept applications.

See which foundations fund work like yours Matching by cause, place and grant size

Foundations with a return in the last two years, each by its latest return (tax years 2024 to 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

Ranked by giving to environment

Top 50

Grants in each foundation’s latest return to organizations whose IRS category is environment.

  1. Dalio Foundation IncWestport, CT · tax year 2024 12 grants Preselected only $1,685,000 to environment
  2. Westwind FoundationNorwalk, CT · tax year 2024 33 grants Preselected only $1,180,100 to environment
  3. The Tow Foundation IncNew Canaan, CT · tax year 2025 6 grants Preselected only $994,500 to environment
  4. Leon Lowenstein Foundation IncMadison, CT · tax year 2025 7 grants Preselected only $860,000 to environment
  5. The Brewer Family Foundation IncRowayton, CT · tax year 2025 6 grants Preselected only $785,000 to environment
  6. McChord FoundationNorwalk, CT · tax year 2024 2 grants Preselected only $575,000 to environment
  7. The Common Sense Fund IncGreenwich, CT · tax year 2024 6 grants Preselected only $405,000 to environment
  8. The Hayes FoundationNew Haven, CT · tax year 2025 8 grants Preselected only $380,000 to environment
  9. Steven & Alexandra Cohen Foundation IncStamford, CT · tax year 2024 4 grants Preselected only $361,000 to environment
  10. The Melville Charitable Trust IncNew Haven, CT · tax year 2024 2 grants Accepts applications $340,000 to environment
  11. Jeniam FoundationNewtown, CT · tax year 2024 13 grants Accepts applications $303,500 to environment
  12. The Summer Hill FoundationMadison, CT · tax year 2025 4 grants Accepts applications $265,000 to environment
  13. The Rein Family Foundation IncNew Canaan, CT · tax year 2025 3 grants Preselected only $263,000 to environment
  14. William & Lynda Steere FoundationWestport, CT · tax year 2025 1 grant Preselected only $250,000 to environment
  15. The Betsy and Jesse Fink Family FoundationFairfield, CT · tax year 2024 5 grants Preselected only $237,500 to environment
  16. Synchrony FoundationStamford, CT · tax year 2025 5 grants Preselected only $226,000 to environment
  17. Tauck Family FoundationWilton, CT · tax year 2025 7 grants Accepts applications $213,264 to environment
  18. Alexander Host FoundationGreenwich, CT · tax year 2025 19 grants Accepts applications $195,000 to environment
  19. Anne and Rollin Bates Foundation IncHartford, CT · tax year 2025 2 grants Accepts applications $180,000 to environment
  20. Royce Family Fund IncGreenwich, CT · tax year 2024 4 grants Preselected only $171,700 to environment
  21. MLE Foundation IncNew Canaan, CT · tax year 2025 9 grants Preselected only $160,000 to environment
  22. Chilton Trust FoundationStamford, CT · tax year 2025 3 grants Preselected only $148,765 to environment
  23. Pepper Whiston FoundationWest Hartford, CT · tax year 2025 1 grant Preselected only $130,000 to environment
  24. The Vervane Foundation IncCos Cob, CT · tax year 2024 3 grants Preselected only $129,303 to environment
  25. The Bok Family FoundationCanaan, CT · tax year 2024 2 grants Preselected only $125,000 to environment
  26. The Meier and Linnartz Family FoundationNew Canaan, CT · tax year 2024 5 grants Preselected only $117,543 to environment
  27. James and Chantal Sheridan FoundationCos Cob, CT · tax year 2024 1 grant Preselected only $115,000 to environment
  28. The Oaklawn FoundationincWilton, CT · tax year 2025 7 grants Preselected only $105,500 to environment
  29. Silver Family FoundationDarien, CT · tax year 2024 2 grants Accepts applications $100,000 to environment
  30. Avangrid Foundation IncOrange, CT · tax year 2025 1 grant Accepts applications $100,000 to environment
  31. Geh FoundationMadison, CT · tax year 2025 1 grant Accepts applications $100,000 to environment
  32. The William and Mary Greve Foundation IncNorfolk, CT · tax year 2024 5 grants Preselected only $90,000 to environment
  33. The Martha and Hunter Grubb Foundation IncWest Hartford, CT · tax year 2024 4 grants Preselected only $90,000 to environment
  34. The Goldstone Family FoundationRidgefield, CT · tax year 2024 3 grants Preselected only $85,500 to environment
  35. The Hall Charitable TrustWilton, CT · tax year 2024 5 grants Preselected only $83,500 to environment
  36. Seedlings FoundationBranford, CT · tax year 2025 1 grant Preselected only $80,000 to environment
  37. Crow Hill FoundationRiverside, CT · tax year 2025 1 grant Preselected only $75,000 to environment
  38. The Wild Gifting ProjectMiddletown, CT · tax year 2024 1 grant Preselected only $75,000 to environment
  39. The Fiona and Rick True Charitable Trust (fka the Tony McLellan Charitable Trust)Stamford, CT · tax year 2024 1 grant Preselected only $73,653 to environment
  40. The Pamela Howard Family Foundation IncOld Greenwich, CT · tax year 2025 6 grants Preselected only $68,000 to environment
  41. Thomas & Carolyn Witt Foundation IncDarien, CT · tax year 2024 1 grant Preselected only $65,000 to environment
  42. The Gere FoundationNew Canaan, CT · tax year 2024 1 grant Preselected only $65,000 to environment
  43. The Werth Family Foundation IncWoodbridge, CT · tax year 2024 5 grants Preselected only $63,600 to environment
  44. The Tresemer Foundation IncGuilford, CT · tax year 2024 1 grant Preselected only $62,000 to environment
  45. Pritchard FoundationNew Canaan, CT · tax year 2025 3 grants Preselected only $60,000 to environment
  46. Bermel Family FoundationSimsbury, CT · tax year 2024 2 grants Preselected only $55,000 to environment
  47. The Edward and Mary Lord FoundationNorth Franklin, CT · tax year 2024 1 grant Preselected only $54,000 to environment
  48. Johnson-Stillman Family FoundationGreenwich, CT · tax year 2024 3 grants Preselected only $52,500 to environment
  49. The Kestrel FoundationWashington, CT · tax year 2024 5 grants Preselected only $51,000 to environment
  50. Keefe Family FoundationGreenwich, CT · tax year 2025 1 grant Preselected only $50,000 to environment

Open to applications

25 foundations

The return gives an application contact and does not check the preselected-only box.

  1. The Melville Charitable Trust IncNew Haven, CT · tax year 2024 2 grants Accepts applications $340,000 to environment
  2. Jeniam FoundationNewtown, CT · tax year 2024 13 grants Accepts applications $303,500 to environment
  3. The Summer Hill FoundationMadison, CT · tax year 2025 4 grants Accepts applications $265,000 to environment
  4. Tauck Family FoundationWilton, CT · tax year 2025 7 grants Accepts applications $213,264 to environment
  5. Alexander Host FoundationGreenwich, CT · tax year 2025 19 grants Accepts applications $195,000 to environment
  6. Anne and Rollin Bates Foundation IncHartford, CT · tax year 2025 2 grants Accepts applications $180,000 to environment
  7. Silver Family FoundationDarien, CT · tax year 2024 2 grants Accepts applications $100,000 to environment
  8. Avangrid Foundation IncOrange, CT · tax year 2025 1 grant Accepts applications $100,000 to environment
  9. Geh FoundationMadison, CT · tax year 2025 1 grant Accepts applications $100,000 to environment
  10. The Goodnow FundDarien, CT · tax year 2024 8 grants Accepts applications $41,000 to environment
  11. The Bondi FoundationGreenwich, CT · tax year 2025 1 grant Accepts applications $40,000 to environment
  12. Thomaston Savings Bank Foundation IncThomaston, CT · tax year 2025 6 grants Accepts applications $34,800 to environment
  13. GE Aerospace FoundationNorwalk, CT · tax year 2024 63 grants Accepts applications $29,738 to environment
  14. The Robert & Margaret Patricelli Family FoundationSimsbury, CT · tax year 2024 2 grants Accepts applications $25,250 to environment
  15. The FB Heron FoundationNew Haven, CT · tax year 2024 6 grants Accepts applications $23,200 to environment
  16. Katharine K McLane and Henry R McLaneHartford, CT · tax year 2025 2 grants Accepts applications $22,000 to environment
  17. Bonnell Cove FoundationGroton, CT · tax year 2025 6 grants Accepts applications $21,035 to environment
  18. Union Savings Bank Foundation IncDanbury, CT · tax year 2025 3 grants Accepts applications $20,150 to environment
  19. Spiralis Music Trust Uad 08-08-03Fairfield, CT · tax year 2025 1 grant Accepts applications $20,000 to environment
  20. The O'Herron Family FoundationStamford, CT · tax year 2024 4 grants Accepts applications $19,000 to environment
  21. Newalliance Foundation IncNew Haven, CT · tax year 2025 3 grants Accepts applications $15,500 to environment
  22. Olivieri Johnston Family FoundationWest Hartford, CT · tax year 2024 5 grants Accepts applications $14,000 to environment
  23. Northwest Community Bank Foundation IncWinsted, CT · tax year 2025 7 grants Accepts applications $12,040 to environment
  24. Ion Bank Foundation IncNaugatuck, CT · tax year 2025 4 grants Accepts applications $11,650 to environment
  25. The Robert and Judith Sturgis Family FoundationSimsbury, CT · tax year 2025 8 grants Accepts applications $10,100 to environment