| JUDCO LLCSt. Marks, FL · Active | St. Marks, FL | LLC | Jan 14, 2026 | Active |
| FORGOTTEN COAST FORESTRY AND LANDWORKS LLCSaint Marks, FL · Active | Saint Marks, FL | LLC | Feb 12, 2026 | Active |
| MBG INFINITY LLCSaint Marks, FL · Active | Saint Marks, FL | LLC | Mar 30, 2026 | Active |
| ROSS PLACE PARKING LLCSaint Marks, FL · Active | Saint Marks, FL | LLC | May 18, 2026 | Active |
| ST MARKS HOMES, LLCSt. Marks, FL · Active | St. Marks, FL | LLC | May 26, 2026 | Active |
| SOUTHERN MARSH BUILDERS LLCSt. Marks, FL · Active | St. Marks, FL | LLC | Jun 2, 2026 | Active |
| ST MARKS LLCSt. Marks, FL · Active | St. Marks, FL | LLC | Jun 19, 2026 | Active |
| COMMERCIAL MEDICAL AND PLUMBING SYSTEMS, LLCSt. Marks, FL · Active | St. Marks, FL | LLC | Aug 26, 2026 | Active |
| HANDY LAND MAN LLCSaint Marks, FL · Active | Saint Marks, FL | LLC | Sep 11, 2026 | Active |
| SMO BOAT AND RV STORAGE, LLCSaint Marks, FL · Active | Saint Marks, FL | LLC | Sep 23, 2026 | Active |
| SHELL ISLAND FISH CAMP AND MARINA, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Jun 30, 1988 | Inactive |
| CONSERVANCY OF NORTHWEST FLORIDA, INC.St. Marks, FL · Inactive | St. Marks, FL | Nonprofit | Feb 20, 2004 | Inactive |
| ST MARKS STONE CRAB FESTIVAL, INCSt. Marks, FL · Inactive | St. Marks, FL | Nonprofit | Apr 22, 2009 | Inactive |
| ST. MARKS WATERFRONTS FLORIDA PARTNERSHIP, INC.St. Marks, FL · Active | St. Marks, FL | Nonprofit | Mar 11, 2010 | Active |
| ST. MARKS SMALL CAT RESCUE INC.St. Marks, FL · Inactive | St. Marks, FL | Nonprofit | Sep 11, 2012 | Inactive |
| SAINT MARKS VOLUNTEER FIRE DEPARTMENT INCSt. Marks, FL · Inactive | St. Marks, FL | Nonprofit | Sep 5, 2013 | Inactive |
| WAKULLA COMMERCIAL FISHERMAN'S COOPERATIVE, INC.St. Marks, FL · Inactive | St. Marks, FL | Nonprofit | Apr 25, 2016 | Inactive |
| ST. MARKS REFUGE ASSOCIATION, INC.St. Marks, FL · Active | St. Marks, FL | Nonprofit | Apr 6, 1987 | Active |
| TRAILS END OF WAKULLA HOMEOWNERS' ASSOCIATION, INC.St. Marks, FL · Inactive | St. Marks, FL | Nonprofit | May 27, 2022 | Inactive |
| DISCOVER ST. MARKS, INC.St. Marks, FL · Inactive | St. Marks, FL | Nonprofit | Feb 16, 2023 | Inactive |
| COOPERATIVE FOR SPILLAGE CONTROL OF ST. MARKS, INC.St. Marks, FL · Active | St. Marks, FL | Nonprofit | Aug 13, 1996 | Active |
| WAKULLA'S CHARTER SCHOOL OF ARTS, SCIENCE AND TECHNOLOGY, INC.St. Marks, FL · Active | St. Marks, FL | Nonprofit | Oct 9, 1998 | Active |
| WAKULLA TRANSMISSIONS INCSt. Marks, FL · Inactive | St. Marks, FL | Corporation | Mar 1, 2000 | Inactive |
| POSEY'S ON THE RIVER, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Sep 5, 2000 | Inactive |
| WILKINSON ELECTRIC, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Feb 6, 2002 | Inactive |
| SIMS BROWN FAMILY, INC.Saint Marks, FL · Inactive | Saint Marks, FL | Corporation | Jan 16, 2003 | Inactive |
| WORLD PAYPHONE DISTRIBUTION, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Mar 10, 2003 | Inactive |
| COASTAL MARINE AND ASSOCIATES INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Mar 26, 2003 | Inactive |
| HANG GANG WALLPAPER CO.St. Marks, FL · Active | St. Marks, FL | Corporation | Oct 15, 2003 | Active |
| WILLIAM G. ADAMS FRAMING, INC.St. Mark, FL · Inactive | St. Mark, FL | Corporation | Oct 17, 2003 | Inactive |
| MICHAEL R. HOOVER, INC.Crawfordville, FL · Inactive | Crawfordville, FL | Corporation | Oct 24, 2003 | Inactive |
| DANIELS FLOOR COVERING INCSt. Marks, FL · Inactive | St. Marks, FL | Corporation | Nov 26, 2003 | Inactive |
| RENOVATION SPECIALIST OF ST. MARKS, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Jan 2, 2004 | Inactive |
| LYNDA WATERS INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | May 19, 2004 | Inactive |
| RECREATIONAL RENTALS, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Dec 1, 2004 | Inactive |
| RIVERSIDE CAFE ON THE RIVER, INC.St. Marks, FL · Active | St. Marks, FL | Corporation | Dec 1, 2004 | Active |
| FOURTH QUARTER AT ST. MARKS, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Jan 19, 2005 | Inactive |
| TWO-NICHOLS FAMILY RESTAURANT INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Jan 3, 2007 | Inactive |
| LYNN BROTHERS SEAFOOD V, INC.St. Marks, FL · Active | St. Marks, FL | Corporation | Sep 27, 2007 | Active |
| COURSON'S CLEANING SERVICES, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Apr 7, 2008 | Inactive |
| ST. MARKS SMOKEHOUSE AND OYSTER BAR, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Jan 28, 2010 | Inactive |
| HOBBSCO, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Jul 22, 2010 | Inactive |
| TWO RIVERS F & B, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Aug 19, 2010 | Inactive |
| ST MARKS GATOR COMPANYSt. Marks, FL · Inactive | St. Marks, FL | Corporation | Jun 21, 2011 | Inactive |
| INFORMATION SCIENCE SOLUTIONS INCSt. Marks, FL · Inactive | St. Marks, FL | Corporation | Jan 8, 2018 | Inactive |
| AMY BURNETT INCSt. Marks, FL · Inactive | St. Marks, FL | Corporation | May 14, 2019 | Inactive |
| PONDEROSA HOMES INC.St. Marks, FL · Active | St. Marks, FL | Corporation | Nov 10, 2021 | Active |
| PONDEROSA COMPLETE CONSTRUCTION INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Mar 25, 2022 | Inactive |
| SWEET MAGNOLIA INN, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Nov 27, 1995 | Inactive |
| WEST FLORIDA SPEEDWAY, INC.St. Marks, FL · Inactive | St. Marks, FL | Corporation | Jan 3, 1996 | Inactive |