One Southern Indiana would like to thank the following members for renewing their membership during the month of June, 2021.
| Quarter Century Club (25 Years or More) | Member Since |
| Baptist Health Floyd | 1968 |
| Ivy Tech Community College | 1970 |
| New Hope Services, Inc. | 1989 |
| DKN Architects | 1994 |
| Pro Laminators | 1995 |
| Ten to 24 Years | |
| NYX New Albany | 2004 |
| Park Community Credit Union | 2006 |
| Jack Coffman, Commissioner | 2008 |
| Kentuckiana Wood Products, Inc. | 2011 |
| Strothman and Company | 2011 |
| Five to Nine Years | |
| AccessiCare Elder Home Care | 2012 |
| Advance Fabricators Inc. | 2013 |
| Elite Printing Resources, LLC | 2014 |
| Transamerica Agency Network – Warren Bottorff | 2014 |
| Two to Four Years | |
| Signature Countertops, Inc. | 2017 |
| Executive Elevator | 2018 |
| KY-IN Paralyzed Veterans of America | 2018 |
| New York Life – Danny Berry | 2018 |
| CoreLife Eatery | 2019 |
| Nicklies Development | 2019 |
| River City Clean Team | 2019 |