One Southern Indiana would like to thank the following businesses for renewing their membership during the month of December 2020.
| Quarter Century Club (25 Years or More) | Member Since |
| Indiana-American Water Company | 1967 |
| Ivy Tech Community College | 1970 |
| PC Home Center | 1978 |
| Libs Paving Co., Inc. | 1990 |
| L & D Mail Masters, Inc. | 1992 |
| USI Insurance Services, LLC | 1994 |
| Ten to 24 Years | |
| Hope Southern Indiana, Inc. | 1998 |
| Wiggam Lumber, Inc. | 1999 |
| Kentucky Financial Group | 2002 |
| One Vision Credit Union | 2002 |
| Silver Creek Leather Co., LLC | 2003 |
| LL&A Interior Design | 2005 |
| Storage Express | 2007 |
| CASI Community Action of Southern Indiana, Inc. | 2007 |
| Peyton’s Barricade & Sign Co. | 2008 |
| Clark and Riggs | 2011 |
| Five to Nine Years | |
| Weatherall Co., Inc. | 2012 |
| Schimpff’s Confectionery | 2014 |
| Personalized Merchant Services, LLC. | 2014 |
| Expedia Cruises, New Albany | 2015 |
| Winston Industries | 2016 |
| Two to Four Years | |
| King’s-Quality Restoration Services LLC | 2017 |
| The Breakwater | 2017 |
| Tree of Life Family Birth Center | 2018 |
| Red Roof Inn – Georgetown | 2018 |
| A Class Act DJ’s | 2018 |
| Heine Brothers’ Coffee | 2019 |
| The Refinery | 2019 |
| American Health Network | 2019 |
| Blacksmith Iron Works | 2019 |
| Sprechers Automotive | 2019 |
| Chicken Salad Chick | 2019 |
| One Year | |
| Fibrenew Southern Indiana | 2020 |
| Excel Excavating, Incorporated | 2020 |