| 1 | Day Kimball Healthcare INC | Health Care | $133.7M | $75.0M |
| 2 | Day Kimball Medical Group INC | Health Care | $19.2M | $2.7M |
| 3 | Matulaitis Nursing Home INC | Unclassified | $12.2M | $7.1M |
| 4 | Day Kimball Healthcare Foundation INC | Health Care | $1.9M | $6.8M |
| 5 | Putnam-pomfret Ambulance INC | Public Safety, Disaster Preparedness & Relief | $1.3M | $256K |
| 6 | Putnam Baptist Homes INC | Unclassified | $932K | $2.8M |
| 7 | Theatre of Northeastern Connecticut INC | Arts, Culture & Humanities | $501K | $390K |
| 8 | Benevolent & Protective Order of Elks of the USA | Mutual & Membership Benefit | $469K | $422K |
| 9 | Putnam Bank Foundation | Philanthropy, Voluntarism & Grantmaking | $332K | $2.4M |
| 10 | Putnam Cemetery Association | Unclassified | $311K | $834K |
| 11 | Northeast Oportunities for Wellness INC | Recreation & Sports | $279K | $103K |
| 12 | Albert J Breault Post No 1523 Veter Ans of Foreign Wars | Public & Societal Benefit | $271K | $26K |
| 13 | Lithuanian Catholic Academy of Sciences INC | Religion-Related | $270K | $1.9M |
| 14 | Paws Cat Shelter INC | Animal-Related | $261K | $372K |
| 15 | Interfaith Human Services of Putnam INC | Food, Agriculture & Nutrition | $243K | $406K |
| 16 | Mitchell D Phaiah Foundation INC | Philanthropy, Voluntarism & Grantmaking | $229K | $3.1M |
| 17 | Putnam Business Association INC | Community Improvement & Capacity Building | $172K | $29K |
| 18 | P B H Housing of Plainfield INC | Housing & Shelter | $171K | $1.5M |
| 19 | Wptp Youth Football & Cheer INC | Recreation & Sports | $151K | $33K |
| 20 | Rotary International | Unclassified | $127K | $84K |
| 21 | Womans Board Day Kimball Hospital | Health Care | $122K | $147K |
| 22 | Free & Accepted Masons of Rhode Island & Providence Plantations | Unclassified | $110K | $121K |
| 23 | Aspinock Historical Society of Putnam INC | Arts, Culture & Humanities | $80K | $41K |
| 24 | Brotherhood of Railroad Signalmen | Unclassified | $66K | $52K |
| 25 | Little League Baseball INC | Unclassified | $60K | $30K |
| 26 | American Legion | Public & Societal Benefit | $57K | $197K |
| 27 | Rawson Fam Foundation Tr | Philanthropy, Voluntarism & Grantmaking | $41K | $41K |
| 28 | Association of Retired Combat Communicators | Public & Societal Benefit | $0 | $0 |
| 29 | Living Messages | Unclassified | $0 | $0 |
| 30 | Daughters of the Holy Spirit Administrative Offices | Unclassified | $0 | $0 |
| 31 | Sisters of the Immaculate Conception INC | Unclassified | $0 | $0 |
| 32 | Putnam Baptist Church | Unclassified | $0 | $0 |
| 33 | Supreme Emblem Club of the United States of America INC | Unclassified | $0 | $0 |
| 34 | Annhurst College Alumni Assn INC | Education | $0 | $0 |
| 35 | International Association of Lions Clubs | Unclassified | $0 | $0 |
| 36 | Hope Community Church | Unclassified | $0 | $0 |
| 37 | Eastern Connecticut Soccer Officials Association INC | Unclassified | $0 | $0 |
| 38 | Holy Spirit Health Care Center INC | Unclassified | $0 | $0 |
| 39 | United Nurses and Allied Professionals | Unclassified | $0 | $0 |
| 40 | East Putnam Community Church INC | Unclassified | $0 | $0 |
| 41 | Emblem Club of the United States of America INC | Unclassified | $0 | $0 |
| 42 | New Beginnings Ministries | Religion-Related | $0 | $0 |
| 43 | United States Australian Shepherd Foundation | Animal-Related | $0 | $0 |
| 44 | Town of Putnam Special Service District Fire Dept Assoc | Education | $0 | $0 |
| 45 | Connecticut Education Association | Unclassified | $0 | $0 |
| 46 | Knights of Columbus | Unclassified | $0 | $0 |
| 47 | Daughters of Isabella | Unclassified | $0 | $0 |
| 48 | Daughters of Isabella | Unclassified | $0 | $0 |
| 49 | Knights of Columbus | Unclassified | $0 | $0 |
| 50 | Vasa Order of America | Unclassified | $0 | $0 |
| 51 | Sisters of St. Martha | Unclassified | $0 | $0 |
| 52 | Friends of the Putnam Public Library INC | Education | $0 | $0 |
| 53 | VFW Auxiliary Department of Connecticut INC | Public & Societal Benefit | $0 | $0 |
| 54 | Salon National Laboutique des Huit Chapeaux Et Quarante Femmes | Unclassified | $0 | $0 |
| 55 | Connecticut Federation of School Administrators | Employment | $0 | $0 |
| 56 | Putnam Middle School Parent Teacher Organization INC | Education | $0 | $0 |
| 57 | Putnam Communities | Housing & Shelter | $0 | $0 |
| 58 | Putnam Lions Club Foundation INC | Education | $0 | $0 |
| 59 | Parent Booster USA INC | Education | $0 | $0 |
| 60 | St. James School PTO | Education | $0 | $0 |
| 61 | Quiet Corner Reads | Education | $0 | $0 |
| 62 | Quinebaug Valley Velo Club INC | Recreation & Sports | $0 | $0 |
| 63 | Green Valley Crossing INC | Religion-Related | $0 | $0 |
| 64 | American Legion Auxiliary | Unclassified | $0 | $0 |
| 65 | Putnam Elementery School Parent Teacher Organization | Philanthropy, Voluntarism & Grantmaking | $0 | $0 |
| 66 | Putnam High School Wall of Honor | Education | $0 | $0 |
| 67 | Quiet Corner Robotics Incorporated | Education | $0 | $0 |
| 68 | Cargill Falls Community Development Incorporated | Housing & Shelter | $0 | $10.0M |
| 69 | Quiet Corner Cares | Health Care | $0 | $0 |
| 70 | Widows Sons INC | Human Services | $0 | $0 |
| 71 | Putnam Veterans Advisory Committee | Public & Societal Benefit | $0 | $0 |
| 72 | Custom Supports INC | Education | $0 | $0 |
| 73 | Immaculate Conception Center INC | Unclassified | $0 | $0 |
| 74 | Audio Nerd Book Club INC | Arts, Culture & Humanities | $0 | $0 |
| 75 | Rally for Charity INC | Recreation & Sports | $0 | $0 |
| 76 | Safe Haven Rescue INC | Animal-Related | $0 | $0 |