| Name | Deductibility Code |
| A Better Chance of Wilton Inc. | -- |
| Adat Torah Conservative Congregation Inc. | -- |
| Advocates for Aviation Safety Foundation Inc. | 4 |
| Alexander Hamilton Institute for the Studyof Western Civilizati | -- |
| Alexander Hamilton Institute Ft Study of Western Civilization Inc. | -- |
| Animals in Distress Inc. | -- |
| Apple Blossom School and Family Center | -- |
| Arthur J Wall Jr Scholarship Fund Inc. | -- |
| Bauer Foundation Inc. | 4 |
| Blue Buffalo Foundation for Cancer Research Inc. | 4 |
| Candlelight Concert Series Corporation | -- |
| Cat Rescue Inc. | -- |
| Childrens Day School of Wilton | -- |
| Circle of Care for Families With Cancer | -- |
| Citizens for Balanced Environment & Transportation Foundation Inc. | -- |
| Colley Family Foundation Tr | 4 |
| Common Fund for Non-Profit Organizations | -- |
| Community Nursery School of Wilton Inc. | -- |
| Connecticut Appleseed Center for Law and Justice Inc. | -- |
| Connecticut Friends School Corporation | -- |
| Connecticut League of Victims Inc. | -- |
| Cyrus M Quigley Foundation Incorporated | 4 |
| Davatzes Family Foundation Inc. | 4 |
| Deloitte Foundation | 4 |
| Dispute Settlement Center Inc. | -- |
| Elizabeth Raymond Ambler Tr | 4 |
| Fairfield County Symphony Society Inc. | -- |
| First Step Christian Education Inc. | -- |
| Flotilla 72 Corporation | -- |
| Friends of Ambler Farm Inc. | -- |
| Game of Life Foundation-Golf-Inc | -- |
| Grumman Hill Montessori Association | -- |
| Gunnar Johnson Ogden Fund Inc. | -- |
| Hoe Ministries Inc. | -- |
| Hope Evangelical Free Church Incorporated | -- |
| Hurl Butt Street School House Inc. | -- |
| I Have A Dream of Norwalk Inc. | -- |
| James and Lisa Lillie Charitable Foundation | 4 |
| James T Reedy Sr Future Teachers Scholarship Fund | -- |
| John E Donaldson & Dennis J Perkins Foundation Inc. | 4 |
| Kanfei Nesharim Foundation | 4 |
| Kick for Nick Foundation Inc. | -- |
| Kingdom Way International | -- |
| Knudson Churchill Scholarship Trust | -- |
| Krasnow Family Foundation | 4 |
| Lemko Research Foundation Inc. | -- |
| Lockhart Family Charitable Trust | 4 |
| Lt John G Corr Memorial Award Fund Inc. | -- |
| Maharlika Fil-Am Association | -- |
| Marilyn W Dugan Foundation Inc. | 3 |
| Meals on Wheels of Wilton Inc. | -- |
| Nathan J & Helen Goldrich Foundation Inc. | 4 |
| National Research Fund for Tick Borne Diseases Inc. | -- |
| Obey Foundation Inc. | -- |
| Open the World Incorporated | 4 |
| Oranges and Lemmons Co | -- |
| People With Disabilities Broadcasting Corporation | -- |
| Perakis Foundation | 4 |
| Rebecca and Arthur Samberg Foundation Inc. | 4 |
| Rewards for Justice Fund | -- |
| Ridgefield Alcohol and Drug Awareness Committee Inc. | -- |
| Rising Stars Foundation Llc | -- |
| Sand Dollar Foundation Inc. | 4 |
| School Smarts A Ca Nonprofit Org | -- |
| Seifert Family Foundation | 4 |
| Shakespeare Oxford Society | -- |
| Shames Family Foundation | 4 |
| Smart Family Foundation Inc. | 4 |
| Source Charitable Tr | -- |
| Sped Net Special Education Network of Wilton Ltd. | -- |
| Steven P Evans German Scholarship Trust Fund | 4 |
| Teen Center of Wilton Inc. | -- |
| The Craig & Vicki Brown Family Foundation Inc. | 4 |
| The Luke Obrien Foundation | 4 |
| The Matthew Miles Shaw Scholarship Foundation Inc. | -- |
| The Peter Dartley Charitable Trust | 4 |
| The Tow Foundation Inc. | 4 |
| The Walter Schalk Scholarship Fund for the Performing Arts Inc. | -- |
| The Westport Madrigal Singers C/O Irene R Tyrrell | -- |
| The Wilton Young Mens Christian Association Inc. | -- |
| Theater Arts Patron Society Ic | 4 |
| Tow Foundation Inc. | 4 |
| Town & Country Montessori School Inc. | -- |
| Turnover Shop of Wilton Inc. | -- |
| Valerie Ann Luff Foundation | 4 |
| Van Raalte Family Foundation Inc. | 4 |
| Webster Family Foundation Tr | 4 |
| Weir Farm Art Center Inc. | -- |
| Whitney Sherman Memorial Foundation | -- |
| William & Karen Tell Foundation | 4 |
| Wilton Arts Council Inc. | -- |
| Wilton Baseball & Softball Association Inc. | -- |
| Wilton Basketball Association Inc. | -- |
| Wilton Childrens Center Inc. | -- |
| Wilton Childrens Theater Inc. | -- |
| Wilton Commons Inc. | -- |
| Wilton Education Foundation Inc. | -- |
| Wilton Field Hockey Association Inc. | -- |
| Wilton Historical Society Incorporated | -- |
| Wilton Hockey Booster Association Inc. | -- |
| Wilton Interfaith Council Inc. | -- |
| Wilton Jewish Center-Nefesh Yehudi | -- |
| Wilton Kiwanis Foundation Inc. | -- |
| Wilton Lacrosse Association Ltd. | -- |
| Wilton Land Conservation Trust | -- |
| Wilton Library Association Incorporated | -- |
| Wilton Little League Inc. | -- |
| Wilton Playshop Inc. | -- |
| Wilton Police Fund | -- |
| Wilton Rotary Tr Fund | -- |
| Wilton Singers Incorporated | -- |
| Wilton Soccer Association Inc. | -- |
| Wilton Student Financial Aid Committee Inc. | -- |
| Wilton Track Association Inc. | -- |
| Wilton Volunteer Ambulance Corps Inc. | -- |
| Wilton Womens Club Inc. | -- |
| Wilton Youth Council Inc. | -- |
| Wilton-Weston Advanced Life Support Association Inc. | -- |
| Woodcock Nature Center Inc. | -- |
| Zions Hill Cemetery Association | 6 |
| Zions Hill Preschool Program | -- |