One Southern Indiana would like to thank the following members for renewing their membership during the month of May 2021.
| Quarter Century Club (25 Years or More) | Member Since |
| Aebersold Florist, Inc. | 1973 |
| Metro United Way | 1973 |
| Samtec, Inc. | 1977 |
| Better Business Bureau | 1985 |
| Kovert Hawkins Architects | 1988 |
| Young, Lind, Endres, & Kraft, LLC | 1988 |
| Silver Creek Water Corp. | 1989 |
| Christ Gospel Churches Intl., Inc. | 1990 |
| Dan Cristiani Excavating Co., Inc. | 1990 |
| Rasmussen Chiropractic LLC | 1990 |
| Kightlinger & Gray, LLP | 1991 |
| Koerber’s Fine Jewelry | 1991 |
| New Albany Floyd County Schools | 1991 |
| United Dynamics, Inc. | 1991 |
| MAC Construction & Excavating, Inc. | 1992 |
| AssuredPartners | 1993 |
| Caesars Southern Indiana | 1996 |
| Ten to 24 Years | |
| Idealogy Marketing + Design | 1997 |
| Kentucky Derby Festival, Inc. | 1997 |
| Davis Financial Services | 2005 |
| Ecotech Waste Logistics | 2007 |
| Hardin & Duncan Financial Group | 2007 |
| RKR Incorporated | 2008 |
| Sellersburg Metals & Welding Co., Inc. | 2008 |
| Town of Clarksville | 2009 |
| Coronado Stone, Inc. | 2010 |
| Superb IPC | 2011 |
| McAlister’s Deli | 2011 |
| Owings Patterns Inc. | 2011 |
| Five to Nine Years | |
| Jones, Nale & Mattingly PLC | 2012 |
| Office and Business Resources, LLC | 2012 |
| Autumn Woods Health Campus | 2013 |
| StageOne Family Theatre | 2013 |
| Ben Franklin Crafts | 2014 |
| Semonin Realtors | 2014 |
| The Spaghetti Junction | 2014 |
| Mightily | 2015 |
| Bennett & Bennett Financial | 2015 |
| Integrity Sign Solutions, Inc. | 2016 |
| Lenfert Properties, LLC | 2016 |
| Ford Motor Company | 2016 |
| Two to Four Years | |
| ProRehab Physical Therapy | 2017 |
| Little Caesars Pizza | 2017 |
| HoneyBaked Ham | 2018 |
| Storming Crab | 2018 |
| Shepherd Insurance | 2018 |
| arc | 2018 |
| Peggy’s Place | 2019 |
| Carr’s BBQ and Market, LLC | 2019 |
| River City Bank of Kentucky | 2019 |
| Maker 13 LLC | 2019 |