| MARK'S REPAIRS LLCMayo, FL · Active | Mayo, FL | LLC | Apr 3, 2017 | Active |
| SPECTRACOM LABS INC.Live Oak, FL · Active | Live Oak, FL | Corporation | Jun 7, 2019 | Active |
| MY HEALTHY SOAP LLCMayo, FL · Active | Mayo, FL | LLC | Feb 27, 2023 | Active |
| MK DESIGNS CO. OF FLORIDA, LLCMayo, FL · Active | Mayo, FL | LLC | May 25, 2022 | Active |
| NSM IMPORT EXPORT INCMayo, FL · Active | Mayo, FL | Corporation | Sep 9, 2022 | Active |
| BIT CATTLE AND HORSES, INC.Mayo, FL · Active | Mayo, FL | Corporation | Apr 4, 2017 | Active |
| SKYWALKER REALTY, LLCLive Oak, FL · Active | Live Oak, FL | LLC | Jan 4, 2006 | Active |
| WORLD MINDSET ORGANIZATION INCMayo, FL · Active | Mayo, FL | Nonprofit | Jun 15, 2022 | Active |
| GABRIELA ENGELS INC.Mayo, FL · Active | Mayo, FL | Corporation | May 6, 2008 | Active |
| DH WELLNESS GROUP LLCMayo, FL · Active | Mayo, FL | LLC | May 18, 2020 | Active |
| MIRACLE RANCH "LLC"Mayo, FL · Active | Mayo, FL | LLC | Jul 6, 2021 | Active |
| ALLIGATOR BIGHT STRATEGIES, LLCMayo, FL · Active | Mayo, FL | LLC | May 5, 2023 | Active |
| MSB CUSTOM HOLSTERS LLCMayo, FL · Inactive | Mayo, FL | LLC | Sep 8, 2023 | Inactive |
| RYAN PERRY INCMayo, FL · Active | Mayo, FL | Corporation | Apr 24, 2009 | Active |
| MACK'S WHACKY MUGS, LLCMayo, FL · Active | Mayo, FL | LLC | Feb 6, 2024 | Active |
| 206 TRUCK & EQUIP SALES INC.St. Augustine, FL · Inactive | St. Augustine, FL | Corporation | Feb 4, 2025 | Inactive |
| LAFAYETTE STATE BANKMayo, FL · Active | Mayo, FL | Corporation | Nov 6, 1945 | Active |
| MAYO TIMBER COMPANY INCLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Aug 24, 1956 | Inactive |
| MUTUAL LAND COMPANY INCMayo, FL · Inactive | Mayo, FL | Corporation | Nov 30, 1962 | Inactive |
| SALTO BUILDING CORPMayo, FL · Inactive | Mayo, FL | Corporation | Feb 24, 1966 | Inactive |
| B & H COMPANY INCLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 29, 1966 | Inactive |
| MAYO HARDWARE, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Dec 21, 1966 | Inactive |
| LAFAYETTE COUNTY ABSTRACT AND REALTY CO., INCLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jan 17, 1968 | Inactive |
| SUWANNEE VALLEY MEAT PRODUCTS, CO.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Feb 15, 1968 | Inactive |
| LAFAYETTE PRODUCTS INCLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 21, 1969 | Inactive |
| ROYAL BLUE SPRINGS, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Jul 10, 1969 | Inactive |
| HARLIE LYNCH CONSTRUCTION CO., INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jul 2, 1970 | Inactive |
| LAWSON CONSTRUCTION COMPANY, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Dec 11, 1970 | Inactive |
| EDWARDS FARMS, INC.Mayo, FL · Active | Mayo, FL | Corporation | Oct 7, 1971 | Active |
| H.& L. HOMEBUILDERS, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Apr 18, 1972 | Inactive |
| THE MAYO FREE PRESS, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Dec 28, 1972 | Inactive |
| FRP INDUSTRIES, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Dec 5, 1973 | Inactive |
| W.R. WILLIAMS DISTRIBUTOR, INC.Mayo, FL · Active | Mayo, FL | Corporation | May 31, 1974 | Active |
| MAYO SALES, INC.Mayo, FL · Active | Mayo, FL | Corporation | Jun 20, 1974 | Active |
| HARLIE LYNCH CONSTRUCTION CO., INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Jun 17, 1975 | Inactive |
| MAYO LIME PRODUCTS, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Jul 31, 1975 | Inactive |
| CARLTON'S JEWELERS, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Aug 28, 1975 | Inactive |
| SUWANNEE RIVER PINESTRAW, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Sep 22, 1975 | Inactive |
| R.P. WILLIAMS, OIL CO., INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Apr 29, 1977 | Inactive |
| PUTNAL FARMS, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | May 19, 1977 | Inactive |
| PEARSON AND HOOPER DAIRY, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Nov 18, 1977 | Inactive |
| KOON AND SESSIONS, INCORPORATEDMayo, FL · Inactive | Mayo, FL | Corporation | Jan 26, 1978 | Inactive |
| LANDSON, INCORPORATEDMayo, FL · Inactive | Mayo, FL | Corporation | May 9, 1978 | Inactive |
| ALTON DAIRY, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Aug 2, 1978 | Inactive |
| OZARK LOG HOMES OF FLORIDA, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Dec 5, 1978 | Inactive |
| LAND BROTHER'S DAIRY, INCORPORATEDMayo, FL · Inactive | Mayo, FL | Corporation | Dec 22, 1978 | Inactive |
| ROBERT E. RIGSBY, M.D., P.A.Mayo, FL · Inactive | Mayo, FL | Corporation | Mar 31, 1971 | Inactive |
| MAYO PROPERTIES, INC.Mayo, FL · Inactive | Mayo, FL | Corporation | Jan 16, 1979 | Inactive |
| H & D OF MAYO, INCORPORATEDMayo, FL · Inactive | Mayo, FL | Corporation | Jan 23, 1979 | Inactive |
| CABIN LOG COMPANY OF LAFAYETTE COUNTY, INCORPORATEDMayo, FL · Inactive | Mayo, FL | Corporation | Jan 23, 1979 | Inactive |