| POU-JAC, INC.Port Charlotte, FL · Active | Port Charlotte, FL | Corporation | Dec 18, 2002 | Active |
| JACOBSEN FAMILY HOLDINGS, L.L.C.Safety Harbor, FL · Active | Safety Harbor, FL | LLC | Mar 4, 2020 | Active |
| LAKELAND FLYING SERVICE, LLCSafety Harbor, FL · Active | Safety Harbor, FL | LLC | Oct 14, 2013 | Active |
| MARLINDARLIN II, LLCSafety Harbor, FL · Active | Safety Harbor, FL | LLC | Jul 25, 2012 | Active |
| B C & B FINANCE CO., INC.Safety Harbor, FL · Active | Safety Harbor, FL | Corporation | Jun 3, 2009 | Active |
| MARLIN DARLIN AIR, LLCSafety Harbor, FL · Active | Safety Harbor, FL | LLC | Oct 24, 2005 | Active |
| SR 544, LLCSafety Harbor, FL · Active | Safety Harbor, FL | LLC | May 3, 2005 | Active |
| W.C.J. SALES, INC.Safety Harbor, FL · Active | Safety Harbor, FL | Corporation | Mar 24, 2005 | Active |
| SILVER DOLLAR TRAP CLUB, INC.Safety Harbor, FL · Active | Safety Harbor, FL | Corporation | Dec 28, 1970 | Active |
| CURLEW MOBILE HOME ESTATES MANAGEMENT COMPANYSafety Harbor, FL · Inactive | Safety Harbor, FL | Corporation | Oct 18, 1976 | Inactive |
| JACOBSEN MANUFACTURING, INC.Safety Harbor, FL · Active | Safety Harbor, FL | Corporation | Oct 1, 1977 | Active |
| CURLEW DEVELOPMENT, INC.Palm Harbor, FL · Inactive | Palm Harbor, FL | Corporation | Dec 23, 1977 | Inactive |
| WILLIAM R. JACOBSEN FAMILY LIMITED PARTNERSHIP, L.L.L.P.Safety Harbor, FL · Inactive | Safety Harbor, FL | Partnership | Jun 6, 2018 | Inactive |
| C'MON BACK CLUB, INC.Clearwater, FL · Inactive | Clearwater, FL | Corporation | Apr 12, 1982 | Inactive |
| B. J. RANCH, INC.Safety Harbor, FL · Inactive | Safety Harbor, FL | Corporation | Aug 25, 1982 | Inactive |
| J. L. HOMES, INC.Clearwater, FL · Inactive | Clearwater, FL | Corporation | Feb 16, 1984 | Inactive |
| THE FALLS OPERATING COMPANY, INC.Ormond Bch, FL · Inactive | Ormond Bch, FL | Corporation | Oct 11, 1984 | Inactive |
| ADJ, INC.Safety Harbor, FL · Inactive | Safety Harbor, FL | Corporation | Feb 28, 1985 | Inactive |
| RIDGEMOOR ACRES, LLCSafety Harbor, FL · Inactive | Safety Harbor, FL | LLC | Dec 23, 2011 | Inactive |
| JLW PROPERTIES, L.L.C.Safety Harbor, FL · Inactive | Safety Harbor, FL | LLC | Oct 4, 2012 | Inactive |
| WRJ SALES, L.L.C.Safety Harbor, FL · Inactive | Safety Harbor, FL | LLC | Nov 5, 2012 | Inactive |
| 171 PALMETTO DRIVE LLCSafety Harbor, FL · Inactive | Safety Harbor, FL | LLC | Sep 15, 2017 | Inactive |
| 9 LESLIE CIRCLE LLCSafety Harbor, FL · Inactive | Safety Harbor, FL | LLC | Mar 23, 2018 | Inactive |
| MILLARD FAMILY INVESTMENTS LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Apr 22, 2021 | Inactive |
| 1320 GOLF VIEW, LLC.Safety Harbor, FL · Active | Safety Harbor, FL | LLC | Jul 16, 2026 | Active |
| WRJ ADVERTISING AGENCY, INC.Safety Harbor, FL · Active | Safety Harbor, FL | Corporation | Jun 30, 1988 | Active |
| ALL FLORIDA HOUSING OUTLET, INC.Safety Harbor, FL · Inactive | Safety Harbor, FL | Corporation | Aug 16, 2000 | Inactive |
| WILLIAM R. JACOBSEN JR. INC.North Port, FL · Inactive | North Port, FL | Corporation | Apr 5, 2004 | Inactive |