| 1 | National Charitable Endowment INC | Philanthropy, Voluntarism & Grantmaking | $69.3M | $175.9M |
| 2 | Wee Burn Country Club INC | Unclassified | $23.6M | $28.7M |
| 3 | Woodway Country Club Incorporated | Unclassified | $22.8M | $36.0M |
| 4 | Country Club of Darien | Unclassified | $18.7M | $39.5M |
| 5 | Person to Person INC | Philanthropy, Voluntarism & Grantmaking | $17.8M | $8.4M |
| 6 | Darien Community Young Mens Christian Association INC | Human Services | $13.0M | $23.2M |
| 7 | Meredith and Whitney George Family Foundation INC | Human Services | $8.4M | $48.1M |
| 8 | 522 Foundation INC | Philanthropy, Voluntarism & Grantmaking | $8.3M | $18.0M |
| 9 | The Horrigan Family Foundation | Philanthropy, Voluntarism & Grantmaking | $7.7M | $11.3M |
| 10 | Darien Library INC | Education | $7.1M | $29.5M |
| 11 | Goodnow Fund | Unclassified | $6.8M | $21.1M |
| 12 | Tokeneke Club Incorporated | Unclassified | $6.3M | $20.5M |
| 13 | American Friends of the Episcopal Diocese of Jerusalem | Human Services | $6.3M | $2.8M |
| 14 | Meyer Family Charitable Tr | Philanthropy, Voluntarism & Grantmaking | $6.1M | $10.5M |
| 15 | Friends of Animals INC | Animal-Related | $5.9M | $15.6M |
| 16 | Pieter and Yyvette Eenkema van Dijk Foundation | Philanthropy, Voluntarism & Grantmaking | $5.8M | $10.1M |
| 17 | The Curetivity Foundation | Medical Research | $5.1M | $1.0M |
| 18 | Imus Ranch INC | Recreation & Sports | $4.7M | $10.8M |
| 19 | Zelnick-belzberg Charitable Tr Ua | Unclassified | $4.5M | $1.5M |
| 20 | Darien Youth Hockey Assoc INC | Recreation & Sports | $3.2M | $2.8M |
| 21 | Orenstein Family Foundation | Philanthropy, Voluntarism & Grantmaking | $3.1M | $1.4M |
| 22 | Janet a Carrington Foundation 06241998 | Philanthropy, Voluntarism & Grantmaking | $2.7M | $11.1M |
| 23 | David & Tricia Rogers Foundation | Philanthropy, Voluntarism & Grantmaking | $2.5M | $19.6M |
| 24 | Ox Ridge Riding & Racquet Club INC | Unclassified | $2.1M | $11.0M |
| 25 | Theodore a Rapp Foundation | Philanthropy, Voluntarism & Grantmaking | $2.1M | $3.9M |
| 26 | Darien Fire Dept INC | Unclassified | $1.9M | $3.1M |
| 27 | The Darien Foundation INC | Education | $1.8M | $3.2M |
| 28 | Daniel P and Grace I Tully Charitable Trust | Unclassified | $1.8M | $3.6M |
| 29 | Carey Family Foundation | Philanthropy, Voluntarism & Grantmaking | $1.8M | $40.8M |
| 30 | Middlesex Club INC | Unclassified | $1.8M | $1.6M |
| 31 | Edward E Stone Foundation | Philanthropy, Voluntarism & Grantmaking | $1.7M | $3.7M |
| 32 | Darien Community Association INC | Community Improvement & Capacity Building | $1.7M | $2.9M |
| 33 | Christian Mission to Gaza | Human Services | $1.7M | $1.4M |
| 34 | Darien EMS Post 53 INC | Health Care | $1.5M | $11.2M |
| 35 | The Community Fund of Darien | Philanthropy, Voluntarism & Grantmaking | $1.4M | $3.3M |
| 36 | Louis F Bantle and Virginia C Bantle Charitable Foundation INC | Unclassified | $1.4M | $4.5M |
| 37 | Darien Nature Center INC | Environment | $1.3M | $2.8M |
| 38 | Friends of Post 53 INC | Unclassified | $1.2M | $10.0M |
| 39 | Robert and Diana Borman Family Foundation | Philanthropy, Voluntarism & Grantmaking | $1.1M | $7.6M |
| 40 | The Shenandoah Foundation C/o Arthur G Potts Jr | Unclassified | $1.1M | $4.0M |
| 41 | Darien Soccer Association | Youth Development | $1.1M | $868K |
| 42 | Methodist Fam Center Preschool INC | Human Services | $1.1M | $893K |
| 43 | Gerard H Davis and Roberta Davis Charitable Foundation | Philanthropy, Voluntarism & Grantmaking | $1.0M | $2.8M |
| 44 | Spring Grove Cemetery Association | Unclassified | $1.0M | $7.1M |
| 45 | The Alexander Rothschild Family Foundation | Human Services | $1.0M | $952K |
| 46 | Ce12 Foundation | Community Improvement & Capacity Building | $986K | $1.0M |
| 47 | Education and Hope | Philanthropy, Voluntarism & Grantmaking | $943K | $880K |
| 48 | Hastings Foundation INC | Philanthropy, Voluntarism & Grantmaking | $943K | $4.0M |
| 49 | Riley Family Foundation | Philanthropy, Voluntarism & Grantmaking | $940K | $775K |
| 50 | Darien Arts Center INC | Arts, Culture & Humanities | $810K | $1.3M |
| 51 | Brightwater Fund | Philanthropy, Voluntarism & Grantmaking | $808K | $2.3M |
| 52 | Council of Darien School Parents | Unclassified | $805K | $1.1M |
| 53 | Tiny Miracles Foundation | Health Care | $757K | $1.1M |
| 54 | Weatherstone Family Foundation INC | Philanthropy, Voluntarism & Grantmaking | $754K | $1.6M |
| 55 | Life-study Fellowship Foundation INC | Religion-Related | $696K | $35K |
| 56 | Simplifyct INC | Public & Societal Benefit | $663K | $437K |
| 57 | Little League Baseball INC | Unclassified | $593K | $576K |
| 58 | High Pines Foundation | Philanthropy, Voluntarism & Grantmaking | $546K | $780K |
| 59 | Land Trust of Darien INC | Environment | $538K | $35.4M |
| 60 | Friends of the Garvan Institute of Medical Research | Medical Research | $501K | $6K |
| 61 | Darien Boat Club INC | Unclassified | $496K | $358K |
| 62 | Darien Police Association | Unclassified | $468K | $338K |
| 63 | Noroton Heights Depot INC | Youth Development | $463K | $1.1M |
| 64 | Ct Premier Water Polo Club | Youth Development | $453K | $21K |
| 65 | Andrew Shaw Memorial Trust | Youth Development | $442K | $3.1M |
| 66 | Darien Youth Lacrosse INC | Recreation & Sports | $436K | $307K |
| 67 | YWCA of Darien Norwalk INC | Human Services | $435K | $761K |
| 68 | Mark W Blackman and Deborah H Blackman Family Foundation | Philanthropy, Voluntarism & Grantmaking | $432K | $1.9M |
| 69 | Bassler Family Foundation INC | Philanthropy, Voluntarism & Grantmaking | $368K | $566K |
| 70 | The Noroton Fire Department Incorporated | Unclassified | $367K | $2.2M |
| 71 | Darien Historical Society INC | Arts, Culture & Humanities | $367K | $2.2M |
| 72 | Northeast Wisdom INC | Religion-Related | $359K | $533K |
| 73 | Darien Police Assoc INC Voluntary Employees Beneficiary Assoc Tr | Mutual & Membership Benefit | $318K | $1.9M |
| 74 | McIntyre Family Foundation INC | Arts, Culture & Humanities | $297K | $660K |
| 75 | Chuza Foundation | Philanthropy, Voluntarism & Grantmaking | $273K | $210K |
| 76 | At Home in Darien INC | Human Services | $271K | $592K |
| 77 | Thomas and Carolyn Witt Foundation INC | Philanthropy, Voluntarism & Grantmaking | $266K | $2.1M |
| 78 | Piedmont Associates INC | Unclassified | $263K | $433K |
| 79 | ABC in Darien INC | Unclassified | $260K | $2.2M |
| 80 | Ht40 Foundation INC | Youth Development | $255K | $388K |
| 81 | Darien Junior Football League INC | Recreation & Sports | $248K | $221K |
| 82 | Kestrel Tr | Medical Research | $241K | $241K |
| 83 | Noroton Heights Fire Department Incorporated | Health Care | $241K | $418K |
| 84 | Bruce and Janet Sargent Foundation | Philanthropy, Voluntarism & Grantmaking | $225K | $188K |
| 85 | Darien Junior Field Hockey INC | Recreation & Sports | $213K | $169K |
| 86 | Darien Athletic Foundation INC | Recreation & Sports | $209K | $1.0M |
| 87 | Dave Hokin Foundation | Unclassified | $209K | $668K |
| 88 | Darien Babe Ruth League | Recreation & Sports | $204K | $94K |
| 89 | Wave Strong Foundation INC | Mental Health & Crisis Intervention | $190K | $1 |
| 90 | Masonic Club of the Town of Darien INC | Human Services | $174K | $1.2M |
| 91 | Hannah Storm Foundation | Philanthropy, Voluntarism & Grantmaking | $160K | $365K |
| 92 | Fredericks Family Foundation | Philanthropy, Voluntarism & Grantmaking | $159K | $1.4M |
| 93 | Remote Ecologist INC | Science & Technology | $150K | $42K |
| 94 | Blue Wave Pride Club | Education | $148K | $21K |
| 95 | Darien Chamber of Commerce INC | Unclassified | $147K | $285K |
| 96 | Sound Cyclists Bicycle Club INC | Recreation & Sports | $130K | $127K |
| 97 | Darien Board of Realtors INC | Unclassified | $128K | $81K |
| 98 | Victor and Elise Micati Foundation | Philanthropy, Voluntarism & Grantmaking | $126K | $1.4M |
| 99 | Fracture Service Fund INC | Unclassified | $122K | $786K |
| 100 | Pinnacle Ski & Sport Club INC | Unclassified | $114K | $35K |