| Name | Deductibility Code |
| A Better Chance in Ridgefield Inc. | -- |
| Adesso Choral Society | -- |
| Almira Family Foundation | 4 |
| American School of Kosova Inc. | -- |
| Angel Foundation | 4 |
| Boehringer Ingelheim Cares Foundation Inc. | 4 |
| Bossidy Foundation | 4 |
| Branchville Fresh Air Assoc | 4 |
| Bridge Church | -- |
| Community Scholarship Group Inc. | -- |
| Connecticut Olmsted Heritage Alliance Inc. | -- |
| Connecticut Spectrum Management Association Inc. | -- |
| Connecticut Yankees Huskies Hockey Inc. | -- |
| Couri Foundation Inc. | 3 |
| Creative Connections Inc. | -- |
| Dads for Kids Inc. | -- |
| Danford Foundation Inc. | 4 |
| Diebold Institue for Public Policy Studies Inc. | 3 |
| Discovery Center at Ridgefield Inc. | -- |
| Edward John Noble Foundation Inc. | 4 |
| Fighting for Philly Kids | -- |
| Findlay Family Foundation | 4 |
| Fish of Ridgefield | -- |
| Fishers Island Conservancy Inc. | -- |
| Founders Hall Foundation Inc. | -- |
| Friends of Bennetts Pond Inc. | -- |
| Friends of Ridgefield Community Programs Inc. | -- |
| Friends of Ridgefield Parks and Recreation Commission Inc. | -- |
| Friends of Ridgefield Youth Commision Inc. | -- |
| Friends of the Ridgefield Library and Historical Association Inc. | -- |
| From Builders for Rebuilders Inc. | -- |
| Garden & Conservation Trust | -- |
| Healtheclinic Incorporated | -- |
| Irving E Cohen Journey Foundation for Lung Cancer Research Inc. | -- |
| John B and Edith D Carroll Family Charitable Foundation Trust | 4 |
| Keeler Tavern Preservation Society Inc. | -- |
| Keren Foundation for Children Inc. | -- |
| Kidzaid | -- |
| Land Conservancy of Ridgefield Inc. | -- |
| Lawrie Family Foundation | 4 |
| Leonard and Mildred Igstaedter Foundation Inc. | 4 |
| Links for Life Inc. | -- |
| Mamanasco Lake Improvement Fund Inc. | -- |
| Maurice Sendak Foundation Inc. | 4 |
| Meals on Wheels of Ridgefield | -- |
| Molly Ann Tango Memorial Foundation Inc. | -- |
| Monaghan Pipe Band Inc. | -- |
| National Charity League Inc. | -- |
| National Charity League-Nutmeg Chapter | -- |
| Necessities Inc. | -- |
| Nutmeg Book Award Foundation Inc. | -- |
| Nutmeg Quilters Guild | -- |
| Organization of Credit Cardholders Inc. | -- |
| Perry and Basha Lewis Foundation | 4 |
| Philip H and Christine Lodewick Foundation Inc. | 4 |
| Princess Ball | -- |
| Production for Young People Inc. | -- |
| Professional Institute for Advanced Wound Recovery Inc. | -- |
| Randy Cappiello Foundation Inc. | -- |
| Ridgefield Academy Inc. | -- |
| Ridgefield Amatheur Hockey Assciation Inc. | -- |
| Ridgefield Basketball Association Inc. | -- |
| Ridgefield Boys Club | -- |
| Ridgefield Chamber Foundation Inc. | -- |
| Ridgefield Chorale | -- |
| Ridgefield Community Foundation Inc. | -- |
| Ridgefield Community Kindergarten Inc. | -- |
| Ridgefield Cross Country Track and Field Foundation Tr | 4 |
| Ridgefield Fund Incorporated | -- |
| Ridgefield Garden Club Inc. | -- |
| Ridgefield Guild of Artists | -- |
| Ridgefield High School Athletic Advisory Council Inc. | -- |
| Ridgefield Historical Society | -- |
| Ridgefield Lacrosse Inc. | -- |
| Ridgefield Library Association Inc. | -- |
| Ridgefield Music and Arts Center Incorporation | -- |
| Ridgefield Opera Company | 4 |
| Ridgefield Operation for Animal | -- |
| Ridgefield Orchestra Foundation Inc. | -- |
| Ridgefield Playhouse for Movies and the Performing Arts Inc. | -- |
| Ridgefield Post 78 American Legion Baseball | -- |
| Ridgefield Rebels | -- |
| Ridgefield Regional Aquatic Club Inc. | -- |
| Ridgefield Rotary Club Foundation Inc. | 3 |
| Ridgefield Scholarship Group Inc. | -- |
| Ridgefield Sunrise Cottage Foundation Inc. | -- |
| Ridgefield Symphony Orchestra Inc. | -- |
| Ridgefield Thrift Shop Inc. | -- |
| Ridgefield Veterans Memorial Community Association Inc. | -- |
| Ridgefield Womans Club | 6 |
| Ridgefield Workshop for the Performing Arts Inc. | -- |
| Ridgefield Youth Service Bureau Inc. | -- |
| Ritter Family Foundation | 4 |
| Robert J and Pamela F Morganti Foundation Inc. | 4 |
| Sadow Family Foundation Inc. | 4 |
| Saint Joseph Parenting Center | -- |
| Schneider Family Foundation Inc. | 4 |
| Servant Hands Inc. | -- |
| Soccer Club of Ridgefield Conn Inc. | -- |
| Sphere Inc. | -- |
| Susan & George Craig Family Foundation | 4 |
| Taylor-Zemo Foundation Inc. | 4 |
| Temple Shearith Israel | -- |
| The Aldrich Contemporary Art Museum Inc. | -- |
| The Ridgefield Foundation for Public Education Inc. | -- |
| The Ruscitti Family Foundation Inc. | 4 |
| Thomas W Peterson Melanoma Research Foundation Inc. | 4 |
| Tiger Hollow Inc. | -- |
| Tombros Foundation | 4 |
| Tyler Ugolyn Foundation | -- |
| Visiting Nurse Association of Ridgefield Inc. | -- |
| We Will Ride Therapeutic Riding Inc. | -- |
| Western Connecticut Youth Orchestra Inc. | -- |
| Wethe Connecticut Project for the Constitution Inc. | -- |
| Wildshare Inc. | 4 |