| Name | Deductibility Code |
| Adams Street Ministries Inc. | -- |
| Argos Community Schools Building Corporation | 6 |
| Boys and Girls Club of Marshall County Inc. | -- |
| Cancer Assoc of Marshall County Inc. | -- |
| Care & Share of Marshall County Inc. | -- |
| Casa of Marshall County Inc. | -- |
| Christs Church at Plymouth Inc. | -- |
| Church Encouragement Services Inc. | -- |
| Collegiate Bass Anglers Association Inc. | -- |
| Community Resource Center of Marshall County Inc. | -- |
| Council of Churches of Marshall County | -- |
| Earthworks Inc. | -- |
| Fairfield Garden Court Inc. | -- |
| Fearless Charities Inc. | -- |
| Flynn Family Foundation | 4 |
| Friends of the Plymouth Public Library | -- |
| Garden Court Downtown Inc. | -- |
| Garden Court Inc. | -- |
| Gibson Foundation Inc. | 4 |
| Grace International Ministries Inc. | 1 |
| Heart and Hands Inc. | -- |
| Hurford House Inc. | -- |
| Joann and Leonard Isban Charitable Foundation | 4 |
| Johnny Whitt Evangelistical Corporation | -- |
| Lapaz Garden Court Inc. | -- |
| Lifeplex Institute for Health and Wellness Inc. | -- |
| Marshall County Community | -- |
| Marshall County Council on Aging Inc. | -- |
| Marshall County Historical Society Inc. | -- |
| Marshall County Humane Society Incorporated | -- |
| Marshall County Junior Football League | -- |
| Marshall County Lln Inc. | -- |
| Marshall County Neighborhood | -- |
| Marshall County Sheriffs Reserve Inc. | -- |
| Marshall-Starke Development Center Inc. | -- |
| Masons Helping Kids Inc. | -- |
| Mentone Garden Court Inc. | -- |
| Neidlinger Garden Court Inc. | -- |
| Northern Indiana Riding for the Handicaped Association Inc. | 4 |
| Plymouth Building Trades Corporation | -- |
| Plymouth Community Music Boosters Inc. | -- |
| Plymouth Fine Arts Commission | -- |
| Plymouth High School Building Corp | 6 |
| Plymouth Junior League Inc. | -- |
| Plymouth Multischool Building Corporation | 6 |
| Plymouth Public Library Leasing Corporation | 6 |
| Plymouth School Building Corporation | 6 |
| Plymouth Soccer Club Inc. | -- |
| Plymouth Youth Softball League | -- |
| Rachels Home Inc. | -- |
| Ray L Price Foundation Inc. | 3 |
| Rebuilding Together of Marshall County Inc. | -- |
| Saint Josephs Hospital of Marshall County Inc. Auxiliary | -- |
| Songbirds of Northern Indiana Inc. | -- |
| Stephen F Patrick Evangelistic Association Inc. | -- |
| Sunrise Chapel Inc. | -- |
| Towers for Jesus Inc. | -- |
| Turning Point Housing Inc. | -- |
| Tyner Cemetery Assn Inc. | 6 |
| United Way of Marshall County Inc. | -- |
| Wizawzibek Native American Cultural Center Inc. | 4 |
| Wythougan Valley Preservation Council Inc. | -- |
| Yellow River Community Cafe Inc. | -- |