| Name | Deductibility Code |
| A Wish for Children Inc. | -- |
| Alder Brook Cemetery Association | 6 |
| Allasso Foundation Inc. | -- |
| Almazov Foundation of North America Inc. | -- |
| Beazley Co Charitable Foundation Inc. | -- |
| Brainrights for the Americas Incorporated | -- |
| Bread of Life-Full Gospel Church- guilford | -- |
| Bussmann Family Foundation Inc. | 4 |
| Carol L Sirot Foundation | 4 |
| Chabad-Lubavitch of the Shoreline Inc. | -- |
| Chestnut Hill Concerts Inc. | -- |
| Cindy Lynn Sherwin Memorial Foundation | -- |
| Committee to Save Guilford Shoreline Inc. | -- |
| Community Nursery School Inc. | -- |
| Connecticut Council for Humane | -- |
| Connecticut Council on Compulsive Gambling Inc. | 4 |
| Connecticut Girls Hockey League | -- |
| Connecticut Hairdressers and Cosmetologists Foundation Inc. | -- |
| Credit Counseling Solutions Inc. | -- |
| Dorothy Whitfield Historic Society Inc. | -- |
| Dudley Foundation Inc. | -- |
| First Baptist Church of Guilford | -- |
| Franciscan Family Apostolate Inc. | -- |
| George W Manstan Jr Scholarship Trust | -- |
| Guilford A Better Chance Inc. | -- |
| Guilford Babe Ruth Inc. | -- |
| Guilford Baseball Boosters | -- |
| Guilford Center for Children Inc. | -- |
| Guilford Community Fund | -- |
| Guilford Community Television Inc. | 4 |
| Guilford Foundation Inc. | -- |
| Guilford Free Public Library Asso Inc. | -- |
| Guilford Fund for Education Inc. | -- |
| Guilford Interfaith Housing Corp | -- |
| Guilford Jaycee Women Inc. 195 Church St. | -- |
| Guilford Keeping Society Inc. | -- |
| Guilford Land Conservation Trust Inc. | -- |
| Guilford Police Benevolent Association Inc. | -- |
| Guilford Rotary Club Memorial Education Fund Incorporated | -- |
| Guilford Rowing Inc. | -- |
| Guilford Scholarship Association Incorporated | -- |
| Guilford Youth Basketball League Inc. | -- |
| Guilford Youth Lacrosse Association | -- |
| Guilford Youth Mentoring Association Inc. | -- |
| Heart 2 Heart | -- |
| Helping Hands Foundation | 4 |
| Huisking Foundation Inc. | 4 |
| Insights for Rehabilitation Inc. | -- |
| Jaffe Foundation | 4 |
| Jane Marcher Foundation | 4 |
| Joann C Powers Memorial Golf Tournament | -- |
| Khodadoust Eye Foundation Inc. | 4 |
| Kindergarten Association of Connecticut Inc. | -- |
| L6 Foundation | 4 |
| Lifelinx Corporation | -- |
| Little Harbor Laboratory Inc. | 3 |
| Liz Baldino Memorial Fund | -- |
| Marietta Museum of Art & Whimsy Inc. | 3 |
| Menunkatuck Audubon Society Inc. | -- |
| Michael F Bower and Dorothy L Cochrane Foundation Inc. | 4 |
| New England Institute Medical Research | -- |
| North Guilford Nursery School Inc. | -- |
| Nut Plains Cemetery Association of Guilford | 6 |
| Nutmeg Players Inc. | -- |
| Pragst-Stoddard Foundation Trust | 4 |
| Rothberg Institute Inc. | 3 |
| Sarah Foundation Inc. | -- |
| Sarah Inc. | -- |
| Sarah Tuxis Residential Services Inc. | -- |
| Scholarships for Literacy Inc. | -- |
| Shoreline Arts Alliance Inc. | -- |
| Shoreline Outdoor Education Center | -- |
| Starfishgirl Anti-Stalking Campaign Inc. | -- |
| Starship Dance Theater and Company | -- |
| Stonebridge Foundation | 4 |
| The Guilford Art Center Inc. | -- |
| The Guilford Preservation Alliance Inc. | -- |
| The Soccer Club of Guilford Inc. | -- |
| Vineyard Christian Fellowship of | -- |
| Visiting Nurse Association Community Healthcare Inc. | -- |
| Wandering Star Project Inc. | -- |
| West Side Cemetery Association of Guilford | 6 |
| Wire Foundation Inc. | -- |
| Women and Family Life Center of Guilford Incorporated | -- |
| Yale Orthopedic Foundation Inc. | -- |