| Name | Deductibility Code |
| Ahepa 250-Iii Inc. | -- |
| Animal Welfare League of New London County Incorporated | -- |
| Avery Memorial Association | -- |
| Avery-Copp Museum Inc. | -- |
| Big Red Memorial Fund Inc. | -- |
| Bill Memorial Library | -- |
| Boys & Girls Club of Southeastern Connecticut Inc. | -- |
| Catherine Kolnaski Magnet School Pto | -- |
| Chosen Generation Inc. | -- |
| Christian Counselling Center of Southeastern Connecticut Inc. | -- |
| Church of Christ in Groton | -- |
| Community Baptist Church of Groton Connecticut | -- |
| Community of Hope Inc. | -- |
| Consumerwiz of Connecticut Inc. | -- |
| Council for Christian Arts of New London County Incorporated | -- |
| Disabled Workers Committee Inc. | -- |
| Dolphin Sports & Recreation | -- |
| Electric Boat Employees Community Service Association | -- |
| Falcon Music Boosters Inc. | -- |
| Fellowship House Ministries Inc. | -- |
| Fhm Services Inc. | -- |
| Fitch Middle School Parent-Teacher Organization | -- |
| Fitch Senior High School Alumni Association Inc. | -- |
| Foundation for the Preservation of Historic First Church Groton Inc. | -- |
| Friends of Fitch Crew Inc. | -- |
| Friends of the Groton Public Library Inc. | -- |
| Gabrieles All Star Team | -- |
| Glory Church | -- |
| Groton Ambulance Assoc Inc. Rte 117 | -- |
| Groton Animal Foundation Inc. | -- |
| Groton Artwaves Inc. | -- |
| Groton Board of Education | -- |
| Groton Historical Society Inc. | -- |
| Groton Ledyard Rotary Community Awards Inc. | -- |
| Groton Mystic Falcons Youth Football League Inc. | 4 |
| Groton Open Space Association Inc. | -- |
| Groton Public Library Circle of Friends | -- |
| Groton Scholarship Fund Inc. | -- |
| Hearing Ear Dogs of New England Ltd. | -- |
| Inter District Committee for Project Oceanology | -- |
| L Y Spear Foundation | 4 |
| Long Island Sound Foundation Inc. | -- |
| Margaret Drakeley Memorial Scholarship Fund | 4 |
| Maritime Education Foundation of Connecticut Inc. | -- |
| Mary Morrisson Parent-Teacher Organization | -- |
| Merciful Redemption Church | -- |
| Missionary Church of Groton | -- |
| New London Art Students League | -- |
| Noank Fire Company No 1 Inc. | -- |
| Nutmeg Volunteer Jr Ancient Fife & Drum Corps Inc. | -- |
| Odd Fellows Faith Hope and Charity Fund Inc. | -- |
| Odd Fellows Healthcare Inc. | -- |
| Odd Fellows Home of Connecticut | -- |
| Outreach for the Unreached Soul Winning Ministry | -- |
| Phantasmos Inc. | 4 |
| Pleasant Valley Community of Prayer & Praise | -- |
| Polidori Family Charitable Foundation | 4 |
| Poquonnock Bridge Neighborhood Association Inc. | -- |
| Pregnancy Support Center Inc. | -- |
| Prodigal Fusion Productions Inc. | -- |
| Riverfront Childrens Center | -- |
| Rock of Salvation Christian Temple Inc. | -- |
| Seabird Enterprises Inc. | -- |
| Sent to Serve Inc. | -- |
| Southeastern New England Marine Educators | -- |
| St. Johns Christian Church | -- |
| Starr Burying Ground Association | 6 |
| Submarine Force Library & Museum Assoc | -- |
| Submarine Officers Spouses Association Charitable Association | -- |
| The Lions Club of Groton Inc. | -- |
| Trinity Bible Church Inc. | -- |
| Uss San Juan Family Support Group | -- |
| Victory Bible Baptist Church Inc. | -- |
| Vision for Missions Inc. | -- |