| Smilow Foundation | | | Local | 1 | 2024 | $2,000,000 |
| Ernest and Joan Trefz Foundation | | Bridgeport, CT | Local | 7 | 2024 | $810,000 |
| Ambrose Monell Foundation | | New York, NY | National | 5 | 2024 | $700,000 |
| Foster-Davis Foundation Inc | | Wilmington, DE | Local | 5 | 2024 | $380,000 |
| Henry W Gregory Trust U Will 3202 City Trust Co | | Chicago, IL | Local | 7 | 2024 | $306,552 |
| The Nessel Family Foundation Inc | | Norwalk, CT | Local | 7 | 2024 | $235,000 |
| Fairfield Countys Community Foundation Inc | | Norwalk, CT | Local | 7 | 2024 | $224,952 |
| Glenn W Bailey Charitable Tr | | West Palm Bch, FL | National | 1 | 2024 | $200,000 |
| Walter & Marilyn Joy Samuels Charitable Fdtn Tr | | Wilmington, DE | National | 2 | 2024 | $150,000 |
| Robert and Diana Borman Family Foundation | | Darien, CT | Local | 5 | 2024 | $121,500 |
| Frederick Gardner Cottrell Foundation | | Tucson, AZ | Local | 5 | 2024 | $100,000 |
| Dalio Foundation Inc | | Westport, CT | National | 1 | 2024 | $100,000 |
| Andrew J Whittingham Family Foundation Inc | | Stamford, CT | Local | 2 | 2024 | $75,000 |
| Wescustogo Foundation | | Captiva, FL | Local | 3 | 2024 | $75,000 |
| Wiggins Foundation Inc | | Wilmington, DE | National | 6 | 2024 | $50,000 |
| Boucher Family Foundation | | West Hartford, CT | Local | 1 | 2024 | $50,000 |
| M L E Foundation Inc | | New Canaan, CT | National | 7 | 2024 | $40,000 |
| Craig B Tate Foundation | | Stamford, CT | Local | 8 | 2024 | $32,000 |
| The Richard and Barbara Whitcomb Foundation | | New Canaan, CT | Local | 1 | 2024 | $25,000 |
| The Per and Astrid Heidenreich Family Foundation | | Greenwich, CT | National | 1 | 2024 | $25,000 |
| Thornburgh Family Foundation | | Palm Beach, FL | National | 2 | 2024 | $20,000 |
| Robydodd Family Charitable Foundation | | Wilmington, DE | National | 2 | 2024 | $20,000 |
| Harmon Foundation | | New York, NY | Local | 2 | 2024 | $20,000 |
| Huisking Foundation Inc | | Raleigh, NC | National | 7 | 2024 | $19,000 |
| Maurice Goodman Foundation Inc Tr Tax 1a-4-078 | | Buffalo, NY | Local | 5 | 2024 | $17,500 |
| Kontulis Fund | | Detroit, MI | Local | 3 | 2024 | $15,000 |
| Inisfad Foundation Inc | | New York, NY | Local | 1 | 2024 | $10,000 |
| Crane Fund for Widows and Children | | Englewd Clfs, NJ | National | 1 | 2024 | $6,000 |
| The Great Foundation | | | Local | 1 | 2024 | $120 |
| The Spiros Segalas Charitable Trust | | | Local | 5 | 2023 | $3,111,000 |
| Meredith and Whitney George Family Foundation Inc | | Darien, CT | Local | 4 | 2023 | $600,000 |
| Causey Foundation Inc | | Islamorada, FL | Local | 5 | 2023 | $61,000 |
| Hillsdale Fund Inc | | Greensboro, NC | National | 1 | 2023 | $30,090 |
| Yhb Charitable Endowment Inc | | West Hartford, CT | National | 1 | 2023 | $25,000 |
| Sayles & Maddocks Family Foundation | | W Boothby Hbr, ME | Local | 1 | 2023 | $18,000 |
| Macinnis Family Foundation | | Westport, CT | National | 5 | 2023 | $7,500 |
| Draycott Family Foundation Inc | | New Canaan, CT | Local | 5 | 2023 | $4,300 |
| Jerrold and Sally Fine Foundation Inc | | Darien, CT | Local | 5 | 2023 | $3,000 |
| Howard & Katherine Aibel Foundation Inc | | Concord, MA | National | 6 | 2023 | $2,250 |
| Andreas Foundation | | Otsego, MI | National | 1 | 2023 | $400 |
| The Aiello Charitable Foundation Inc | | Bridgeport, CT | Local | 5 | 2022 | $545,500 |
| Cornelia T Bailey Charitable Trust | | | — | 3 | 2022 | $300,000 |
| The Whittingham Family Foundation Inc | | | — | 4 | 2022 | $125,000 |
| Shames Family Foundation | | Wilton, CT | Local | 4 | 2022 | $115,000 |
| Delta Dental Endowment Association of New Jersey Inc | | Parsippany, NJ | Local | 3 | 2022 | $64,470 |
| Breast Cancer Alliance Inc | | Greenwich, CT | National | 3 | 2022 | $55,000 |
| Florence & Edgar Leslie Charitable Foundation | | Beacon Falls, CT | National | 4 | 2022 | $54,700 |
| Burlingame Foundation | | | — | 6 | 2022 | $54,000 |
| Perkin Fund | | S Hamilton, MA | National | 1 | 2022 | $50,000 |
| New Canaan Community Foundation Inc | | New Canaan, CT | Local | 2 | 2022 | $35,000 |
| Littler Mendelson Foundation Inc | | Kansas City, MO | National | 2 | 2022 | $2,500 |
| Bauer Foundation Inc | | New Canaan, CT | Local | 3 | 2021 | $2,105,000 |
| Hanau Family Foundation | | Stamford, CT | Local | 5 | 2021 | $126,000 |
| Newmans Own Foundation | | Westport, CT | National | 3 | 2021 | $41,000 |
| Madeleine and Mandell L Berman Foundation | | Novi, MI | Local | 2 | 2021 | $40,000 |
| The Arnold F Baggins Foundation Inc | | | — | 2 | 2021 | $24,000 |
| Seelert Foundation Inc | | New Canaan, CT | Local | 4 | 2021 | $17,000 |
| Elizabeth Raymond Ambler Tr | | Wilton, CT | Local | 1 | 2021 | $5,000 |
| F Irviug Hutchins Charitale Trust | | Chicago, IL | Local | 1 | 2021 | $5,000 |
| Berlind Foundation | | New York, NY | Local | 1 | 2021 | $5,000 |
| Jeniam Clarkson Foundation | | Newtown, CT | Local | 1 | 2021 | $5,000 |
| Richard and Patricia Jay Charitable Foundation | | Westport, CT | Local | 1 | 2021 | $2,500 |
| James and Mary Ellen Marpe Family Foundation | | Stamford, CT | Local | 1 | 2021 | $500 |
| Blavatnik Family Foundation | | New York, NY | Local | 1 | 2020 | $1,000,000 |
| Nancy Jones Beard Foundation | | New York, NY | Local | 3 | 2020 | $358,532 |
| The Probitas Foundation Ltd | | | — | 2 | 2020 | $170,000 |
| Fox Family Charitable Foundation Inc | | Westport, CT | — | 4 | 2020 | $60,000 |
| Anne S Richardson Fund T5874 | | Chicago, IL | Local | 3 | 2020 | $45,000 |
| Jane T Muhlethaler Foundation Inc | | Southport, CT | Local | 2 | 2020 | $35,000 |
| Nicholas and Anita Mercede Foundation Inc | | Stamford, CT | Local | 2 | 2020 | $20,000 |
| R Hahn Foundation | | Weston, CT | Local | 1 | 2020 | $15,000 |
| Davatzes Family Foundation Inc | | Wilton, CT | Local | 3 | 2020 | $14,000 |
| Leon N Lapine Charitable Residuary Trust Ua 6Th of Will 091585 | | Stamford, CT | Local | 1 | 2020 | $10,000 |
| The Lebovitz Fund | | | National | 1 | 2020 | $10,000 |
| Suez North America Foundation Inc | | | — | 1 | 2020 | $10,000 |
| Jim and Dede Bartlett Foundation | | Wilmington, DE | National | 1 | 2020 | $10,000 |
| Orenstein Family Foundation | | Darien, CT | National | 1 | 2020 | $3,500 |
| Holloway Family Foundation | | Vero Beach, FL | National | 2 | 2020 | $1,250 |
| Zissu Family Foundation | | Short Hills, NJ | National | 1 | 2020 | $1,000 |
| Krasnow Family Foundation | | | — | 1 | 2020 | $200 |
| The@David and Eunice Bigelow Foundation Inc | | Norwalk, CT | Local | 2 | 2019 | $20,000 |
| Robert P & Patricia J Bauman Family Foundation Inc | | Stuart, FL | National | 2 | 2019 | $10,000 |
| Obernier Fam Foundation | | Harrison, NY | — | 2 | 2019 | $9,000 |
| Alexander Family Foundation Inc | | South Norwalk, CT | National | 2 | 2019 | $150 |
| First Eagle Investment Management Foundation | | Wilmington, DE | Local | 1 | 2019 | $113 |
| Christian J and Eva W Trefz Family Foundation Inc | | Westport, CT | Local | 1 | 2018 | $580,502 |
| Marion Moore Foundation Inc | | Norwalk, CT | National | 1 | 2018 | $25,000 |
| The Stewart B Mckinney Foundation Inc | | | — | 1 | 2018 | $25,000 |