One Southern Indiana would like to thank the following businesses for renewing their membership during the month of November 2020.
| Quarter Century Club (25 Years or More) | Member Since |
| paco manufacturing | 1976 |
| Westminster Village Kentuckiana & Health Care Center | 1976 |
| John-Kenyon Eye Center | 1983 |
| Star Electric | 1984 |
| Ten to 24 Years | |
| Kentuckiana Regional Planning & Development Agency (KIPDA) | 1997 |
| Combs Heating & Air Conditioning LLC | 1998 |
| Heartland, A Global Payments Company | 2004 |
| PuroClean of Southern Indiana | 2009 |
| Sapp Tax and Financial Services | 2008 |
| Suburban Extended Stay Hotel | 2008 |
| Five to Nine Years | |
| Gotta Go Surplus | 2013 |
| Schuler Bauer Real Estate Services – Cory Williams | 2014 |
| SK Sign & Banner | 2014 |
| Form G Companies, LLC | 2015 |
| Two to Four Years | |
| Big Brothers Big Sisters of Kentuckiana | 2016 |
| Bluegrass Technologies Corp. | 2016 |
| Charles Schwab – Michael E. Johnson | 2016 |
| Civilcon, Inc. | 2016 |
| Down Syndrome of Louisville Indiana Campus | 2016 |
| Ford Motor Company | 2016 |
| Integrity Sign Solutions, Inc. | 2016 |
| Kaiser Home Support Services, Inc. | 2016 |
| Mathes Pharmacy & Homecare | 2016 |
| BJB Inc. | 2017 |
| American Shooters Indoor Gun Range | 2018 |
| Gaylor Electric | 2018 |
| GoBo’s | 2018 |
| Louisville Regional Airport Authority | 2018 |
| Park National Bank | 2018 |
| Rapid Industries Inc. | 2018 |
| TFS The Foundation Specialists | 2018 |
| One Year | |
| Bill Cline Allstate Agency | 2019 |
| Creation Creek | 2019 |
| Guardian Inspections | 2019 |
| Hagerman Inc. | 2019 |
| Heritage Ford | 2019 |
| Jubilee of Wellness | 2019 |
| New Albany Broadcasting WMYO-TV and WKYI-TV | 2019 |
| Spencer Machine & Tool Co., Inc. | 2019 |
| The Refinery | 2019 |