| OHIO VALLEY RECYCLING, INCORPORATED | — | 0144132 | 1980-01-29 | Inactive | LAGRANGE |
| OLD ANITA SPRINGS HOMEOWNERS ASSOCIATION, INC. | — | 0768065 | 2010-07-28 | Active | LAGRANGE |
| OLD SOUTH PROFESSIONAL MARKETING COMPANY, INC. | — | 0267896 | 1990-01-16 | Inactive | LAGRANGE |
| OLDE TYME DUO, INC. | — | 0634716 | 2006-03-17 | Inactive | LAGRANGE |
| OLDHAM ADVISORS, LLC | — | 0719134 | 2009-01-26 | Active | LAGRANGE |
| OLDHAM AND DISTRICT PIPE BAND, INC. | — | 0872869 | 2013-11-22 | Inactive | LAGRANGE |
| OLDHAM BUSINESS SERVICES, INC. | — | 0172328 | 1982-11-22 | Inactive | LAGRANGE |
| OLDHAM CHIROPRACTIC & REHABILITATION, LLC | — | 0644055 | 2006-08-01 | Inactive | LAGRANGE |
| OLDHAM CIVIC DANCE THEATRE, INC. | — | 0162078 | 1981-11-30 | Inactive | LAGRANGE |
| OLDHAM CO. CUSTOM HOMES INC. | — | 0553327 | 2003-01-31 | Inactive | LAGRANGE |
| OLDHAM COUNTY AIRPORT BOARD INC. | — | 0675662 | 2007-10-12 | Inactive | LAGRANGE |
| OLDHAM COUNTY ARTS ASSOCIATION CORPORATION | — | 0455251 | 1998-04-17 | Active | LAGRANGE |
| OLDHAM COUNTY AUTO SALES, LLC | — | 0578417 | 2004-02-09 | Inactive | LAGRANGE |
| OLDHAM COUNTY AUTOMOTIVE CENTER-QUALITY USED CAR SALES, INC. | — | 0038876 | 1975-06-04 | Inactive | LAGRANGE |
| OLDHAM COUNTY BAND AIDS, INC. | — | 0038878 | 1972-04-28 | Inactive | LAGRANGE |
| OLDHAM COUNTY BEEF COMPANY, INC. | — | 0082563 | 1977-08-17 | Inactive | LAGRANGE |
| OLDHAM COUNTY C-B CLUB, INC. | — | 0071614 | 1976-06-23 | Inactive | LAGRANGE |
| OLDHAM COUNTY CAB COMPANY, INC. | — | 0282455 | 1991-02-06 | Inactive | LAGRANGE |
| OLDHAM COUNTY CABLE TELEVISION COMPANY, INC. | — | 0160775 | 1981-10-14 | Inactive | LAGRANGE |
| OLDHAM COUNTY CATTLEMEN'S ASSOCIATION, INC. | — | 0716153 | 2008-10-22 | Active | LAGRANGE |
| OLDHAM COUNTY CIVITAN CLUB INC. | — | 0291365 | 1991-09-30 | Inactive | LAGRANGE |
| OLDHAM COUNTY COMMUNITY BAND Inc. | — | 1534641 | 2026-01-20 | Active | Lagrange |
| OLDHAM COUNTY COUNTRY CLUB, INCORPORATED | — | 0038879 | 1958-11-03 | Active | LAGRANGE |
| OLDHAM COUNTY DANCERS COMPANY | — | 0845455 | 2012-12-21 | Inactive | LAGRANGE |
| OLDHAM COUNTY ECONOMIC DEVELOPMENT AUTHORITY, INC. | — | 0504333 | 2000-10-25 | Active | LAGRANGE |
| OLDHAM COUNTY ELITE SOFTBALL CLUB INC. | — | 1227355 | 2022-08-23 | Active | LaGrange |
| OLDHAM COUNTY EXTENSION FOUNDATION, INC. | — | 0798662 | 2011-08-23 | Active | LAGRANGE |
| OLDHAM COUNTY FAIR ASSOCIATION FOUNDATION, INC. | — | 0217445 | 1986-07-18 | Inactive | LAGRANGE |
| OLDHAM COUNTY FAIR ASSOCIATION, INC. | — | 0038883 | 1947-09-26 | Inactive | LAGRANGE |
| OLDHAM COUNTY FAIR ASSOCIATION, LLC | — | 0592051 | 2004-08-09 | Inactive | LAGRANGE |
| OLDHAM COUNTY FARM BUREAU OF OLDHAM COUNTY, KENTUCKY | — | 0038884 | 1964-07-06 | Active | LAGRANGE |
| OLDHAM COUNTY FIRE INSTRUCTORS ASSOCIATION, INC. | — | 0765283 | 2010-06-17 | Active | LAGRANGE |
| OLDHAM COUNTY FORD TRACTOR, INC. | — | 0241946 | 1988-03-30 | Inactive | LAGRANGE |
| OLDHAM COUNTY FUNERAL HOME, LLC | — | 0652472 | 2006-12-07 | Inactive | LAGRANGE |
| OLDHAM COUNTY HEALTHCARE CLINIC, LLC | — | 0618214 | 2005-07-26 | Inactive | LAGRANGE |
| OLDHAM COUNTY HIGH SCHOOL PTSA INC. | — | 0505415 | 2000-11-16 | Active | LAGRANGE |
| OLDHAM COUNTY HISTORICAL SOCIETY, INC. | — | 0038840 | 1975-04-15 | Active | LAGRANGE |
| OLDHAM COUNTY HOME IMPROVEMENT AND REMODELING, INC. | — | 0846637 | 2013-01-08 | Inactive | LAGRANGE |
| OLDHAM COUNTY INDUSTRIAL AND DEVELOPMENT FOUNDATION, INC. | — | 0200252 | 1985-04-09 | Inactive | LAGRANGE |
| OLDHAM COUNTY INVESTMENTS, INC. | — | 0290195 | 1991-08-28 | Active | LAGRANGE |
| OLDHAM COUNTY JUNIOR LEAGUE FOOTBALL, INC. | — | 0079958 | 1977-04-29 | Inactive | LAGRANGE |
| OLDHAM COUNTY LEGAL ARTS CENTER LLC | — | 0520387 | 2001-08-03 | Inactive | LAGRANGE |
| OLDHAM COUNTY MEMORIAL POST NO. 7891 VETERANS OF FOREIGN WARS OF THE UNITED STATES, INC. | — | 0227013 | 1987-03-19 | Inactive | LAGRANGE |
| OLDHAM COUNTY MIDDLE SCHOOL BASEBALL LLC | — | 1231408 | 2022-09-14 | Inactive | LaGrange |
| OLDHAM COUNTY MIDDLE SCHOOL LACROSSE CLUB INC. | — | 0858294 | 2013-05-22 | Inactive | LAGRANGE |
| OLDHAM COUNTY MIDDLE SCHOOL PTSA INC. | — | 0504151 | 2000-10-24 | Inactive | LAGRANGE |
| OLDHAM COUNTY MOTOR PARTS, INC. | — | 0038824 | 1975-07-01 | Inactive | LAGRANGE |
| OLDHAM COUNTY PARAMEDICS, INC. | — | 0207175 | 1985-10-16 | Inactive | LAGRANGE |
| OLDHAM COUNTY PARKS TRUST, INC. | — | 0489794 | 2000-02-21 | Inactive | LAGRANGE |
| OLDHAM COUNTY PEDIATRICS PLLC | — | 1258902 | 2023-02-08 | Pending | LaGrange |