| Name | Deductibility Code |
| Alcohol and Drug Awareness Program of Weston Inc. Adap | -- |
| American Wanderer Foundation | -- |
| Boroughs Fam Foundation | 4 |
| Burry Fredrik Foundation Inc. | 4 |
| Capaba Educational Foundation Inc. | -- |
| Charles M and Lisa L Daugherty Charitable Foundation | 3 |
| Connecticut Consortium of Education Foundations Inc. | -- |
| Daniel E Offutt III Private Foundation Tr | 4 |
| Dekker Foundation | 4 |
| Donna and Stuart Farber Family Foundation Inc. | 4 |
| Fairfield County Basketball League Inc. | -- |
| Fairfield County Stars Bbc Inc. | -- |
| Financial Executives Networking Group Inc. | -- |
| Frank and Tracy Collins Charitable Foundation | 4 |
| Friends of the Weston Library Inc. | -- |
| Friendship Cup Inc. | 4 |
| Hang Your Hat Foundation | 4 |
| Hidden Hill Foundation | 4 |
| Honoring the Righteous Inc. | -- |
| Howard & Katherine Aibel Foundation Inc. | 4 |
| Hurlbutt Elementary School Pto | -- |
| Jeff Bernstein and Lisa Marrocchino Family Foundation Inc. | 4 |
| Joyce & Bernie Zimmerman Foundation | 4 |
| Jsp Foundation Inc. | -- |
| Kontogouris-Djokic Foundation | 4 |
| Leff Satinover Charitable Foundation Inc. | 4 |
| Morton Schindel Foundation Inc. | 4 |
| Nicki Meyer Educational Effort Inc. | 5 |
| Norfield Childrens Center Inc. | -- |
| R Hahn Foundation | 4 |
| Saugatuck Land Trust Company | 4 |
| Seth Gaynes Memorial Scholarship Fd | 4 |
| Sitver Foundation Inc. | 4 |
| Sloane Family Foundation Inc. | 4 |
| Starfish Childrens Fund Inc. | -- |
| Surviving Bullies Charity Inc. | -- |
| The Weston Womens League Incorporated | -- |
| Tsunami Mommies Inc. | -- |
| Turkel Family Foundation Inc. | 4 |
| Weston Babe Ruth Softball League | 4 |
| Weston Basketball Association Inc. | -- |
| Weston Community Park Organization Inc. | -- |
| Weston Diamond Club | -- |
| Weston Education Foundation Inc. | -- |
| Weston High School Boosters Club Inc. | -- |
| Weston High School Pto Inc. | -- |
| Weston Historical Society Inc. | -- |
| Weston Intermediate School Pto Inc. | -- |
| Weston Kiwanis Club Foundation Inc. | -- |
| Weston Lacrosse Club Inc. | -- |
| Weston Middle School Pto Inc. | -- |
| Weston Music Center & School of the Performing Arts Inc. | -- |
| Weston Soccer Club Inc. | -- |
| Weston Swimming Inc. | -- |
| Weston Volunteer Fire Dept Inc. | -- |
| Weston Warm-Up Fund Inc. | -- |
| Weston Woods Institute Inc. | -- |
| Westport Community Band Inc. | -- |
| Wildlife in Crisis Inc. | -- |