| Name | Deductibility Code |
| A New Day Adult Day Services Inc. | -- |
| All Star Soccer Academy Inc. | -- |
| Amelia M Frehse Charitable Tr | 3 |
| Auburn Arts Commission Inc. | -- |
| Auburn Automotive Heritage Inc. | -- |
| Auburn Church of Christ Inc. | -- |
| Auburn Community Band Inc. | -- |
| Auburn Improvement Association Inc. | -- |
| Auburn Presbyterian Church Foundation Inc. | -- |
| Auburn YMCA Foundation Inc. | -- |
| Calvary Chapel of Auburn Inc. | -- |
| Community of the Cross Corporation | -- |
| Cornerstone World Outreach Ministries Inc. | -- |
| De Kalb County Community Memorial Hospital Foundation Inc. | -- |
| Dean V Kruse Foundation Inc. | 3 |
| Dekalb Central Music Association Inc. | -- |
| Dekalb Central School Alumni Foundation Inc. | -- |
| Dekalb Community Impact Corporation Inc. | -- |
| Dekalb Council on Pregnancy Inc. | -- |
| Dekalb County Community Foundation Inc. | -- |
| Dekalb County Community Youth Center Inc. | -- |
| Dekalb County Council on Aging Inc. | -- |
| Dekalb County DAR E Program Inc. | -- |
| Dekalb County Economic Development Partnership Inc. | -- |
| Dekalb County Fair Association Inc. | -- |
| Dekalb County Fund of the Future Incorporated | -- |
| Dekalb County Indiana Genealogy Society | -- |
| Dekalb County Parent Group for Handicapped Children Inc. | -- |
| Dekalb County Police Athletic League Inc. | -- |
| Dekalb Heart Association Incorporated | -- |
| Dekalb Memorial Hospital Fund Raising Guild Inc. | -- |
| Dekalb Memorial Hospital Inc. | -- |
| Drug Free Dekalb County | -- |
| Eagles Quest Ministries Inc. | -- |
| Early Ford V-8 Foundation | -- |
| Evergreen Cemetery Association Incorporated | 6 |
| Foster Care Services Inc. | -- |
| Friends of the Eckhart Public Library Incorporated | -- |
| Hip on Hep C Inc. | -- |
| Hoosier Warbirds Inc. | -- |
| Hospital Aid Foundation Inc. | -- |
| Hunters Helping Hunters Inc. | -- |
| Jackson Volunteer Fire Corporation of Dekalb County | 6 |
| Mti Foundation Inc. | 4 |
| National Association of Automobile Museums Inc. | -- |
| National Automotive and Truck Museum of the United States Inc. | -- |
| Northeast Indiana Baseball Association | -- |
| Peoples Charitable Foundation Inc. | 4 |
| Preservation of Dekalb Heritage | -- |
| Roselawn Cemetery Inc. | 6 |
| Serenity House Inc. | -- |
| Shelter Ministries Inc. | -- |
| Sons of the Revolution in the State of Indiana Incorporated | -- |
| Steps of Care Inc. | -- |
| Summit Springs Inc. | -- |
| United Way of Dekalb County Inc. | -- |
| William E Willenar Genealogy Center Foundation Inc. | 4 |
| Woodlawn Cemetery Association | 6 |
| Young Mens Christian Assoc | -- |