| STAR APPLE FOUNDATION, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Nonprofit | Aug 11, 2023 | Inactive |
| MJOB GOLF, LLCNaples, FL · Active | Naples, FL | LLC | Oct 19, 2021 | Active |
| COMMUNITY PIANO OF CENTRAL FLORIDA, INC.South Daytona, FL · Active | South Daytona, FL | Corporation | Dec 8, 2016 | Active |
| THE M.B. O'BRIEN COMPANY, INC.Jacksonville, FL · Inactive | Jacksonville, FL | Corporation | Apr 16, 1974 | Inactive |
| REAL ESTATE CLASSIFIEDS, INC.Casselberry, FL · Inactive | Casselberry, FL | Corporation | Jun 15, 1977 | Inactive |
| KESSEL INTERNATIONAL CORPORATIONLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 29, 2007 | Inactive |
| BELLA BUILDERS, INC.Cape Coral, FL · Inactive | Cape Coral, FL | Corporation | Dec 8, 1980 | Inactive |
| BETTERPSYCH INC.West Palm Bch, FL · Inactive | West Palm Bch, FL | Corporation | Apr 8, 2022 | Inactive |
| AMI/AMERICAN MUSIC INTERNATIONAL LLCTrinity, FL · Inactive | Trinity, FL | LLC | Aug 15, 2000 | Inactive |
| SOM/SOUNDS OF MEDJUGORJE LLCTrinity, FL · Inactive | Trinity, FL | LLC | Aug 15, 2000 | Inactive |
| O'BRIEN TECHNOLOGY SERVICES, LLCTitusville, FL · Inactive | Titusville, FL | LLC | Jan 15, 2003 | Inactive |
| OBRIEN AND PARTNERS, LLC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | LLC | Apr 4, 2007 | Inactive |
| ALWAYS ON TARGET LLCOrlando, FL · Inactive | Orlando, FL | LLC | Jul 18, 2007 | Inactive |
| BELLA INVESTMENTS (1980) LLCCape Coral, FL · Inactive | Cape Coral, FL | LLC | Dec 22, 2008 | Inactive |
| SMK PROPERTIES OF FLORIDA, LLCSt. Petersburg, FL · Inactive | St. Petersburg, FL | LLC | Dec 9, 2009 | Inactive |
| APPOGRE LLCMelbourne Beach, FL · Inactive | Melbourne Beach, FL | LLC | Nov 3, 2011 | Inactive |
| BEYOND HORIZON PROFESSIONAL SERVICES, LLCSanford, FL · Inactive | Sanford, FL | LLC | May 2, 2012 | Inactive |
| FCHI, LLCBradenton, FL · Active | Bradenton, FL | LLC | Jul 26, 2013 | Active |
| O'BRIEN PARTS & EQUIPMENT, LLCOdessa, FL · Inactive | Odessa, FL | LLC | Nov 20, 2013 | Inactive |
| MOB CLEANING SERVICES, LLCSanford, FL · Inactive | Sanford, FL | LLC | Aug 16, 2016 | Inactive |
| MKOB DESIGN LLCHobe Sound, FL · Inactive | Hobe Sound, FL | LLC | Oct 20, 2017 | Inactive |
| IONCLASSIC LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jan 2, 2019 | Active |
| MIKE O'BRIEN CPA LLCGulf Breeze, FL · Inactive | Gulf Breeze, FL | LLC | Dec 15, 2023 | Inactive |
| HAYS 115 LLCSanford, FL · Inactive | Sanford, FL | LLC | Apr 3, 2024 | Inactive |
| MICHAEL O'BRIEN COMPANY, INC.Jacksonville, FL · Inactive | Jacksonville, FL | Corporation | Dec 12, 1989 | Inactive |
| RPM HOLDINGS GROUP, L.L.C.Location not reported, FL · Inactive | Location not reported, FL | LLC | Jan 10, 2005 | Inactive |
| ZONE SKIP LOGISTICS LLCEnglewood, FL · Inactive | Englewood, FL | LLC | Oct 13, 2022 | Inactive |
| OASIS HIGH SCHOOL BOOSTER CLUB, INC.Cape Coral, FL · Inactive | Cape Coral, FL | Nonprofit | Aug 11, 2016 | Inactive |
| NORTHWEST FLORIDA TRACK CLUB, INC.Shalimar, FL · Active | Shalimar, FL | Nonprofit | Jul 20, 1992 | Active |
| CARSTACK ENGINEERING, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Mar 30, 2001 | Inactive |
| O'BRIEN'S DESIGN, INC.Miramar, FL · Inactive | Miramar, FL | Corporation | Dec 10, 2002 | Inactive |
| O.B. SURVEYS, INCJupiter, FL · Inactive | Jupiter, FL | Corporation | Nov 12, 2004 | Inactive |
| TARGETED SOLUTIONS CONSULTANTS, INCRuskin, FL · Inactive | Ruskin, FL | Corporation | Jan 23, 2006 | Inactive |
| SALTY DOG PROPERTIES CO.Vero Beach, FL · Inactive | Vero Beach, FL | Corporation | Feb 19, 2007 | Inactive |
| MILITARY ADVISORY SERVICES, INC.Orange Park, FL · Inactive | Orange Park, FL | Corporation | Aug 10, 2007 | Inactive |
| BRIAN J. BRENNAN, INC.Miramar Beach, FL · Inactive | Miramar Beach, FL | Corporation | Dec 27, 2011 | Inactive |
| ELITE CHOICE HOMES INCCape Coral, FL · Inactive | Cape Coral, FL | Corporation | Apr 3, 2012 | Inactive |
| PARK BEVERAGES, INC.Merritt Island, FL · Inactive | Merritt Island, FL | Corporation | May 24, 2012 | Inactive |
| RATCHET MOTORSPORTS SERVICES INCRiverview, FL · Inactive | Riverview, FL | Corporation | Mar 16, 2016 | Inactive |
| AZTECH, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 13, 1993 | Inactive |
| MIKO GOLF, INC.Plantation, FL · Inactive | Plantation, FL | Corporation | Sep 13, 1996 | Inactive |
| SOUTHERN HAWKER AVIATION, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Jan 29, 1998 | Inactive |
| O'BRIEN'S TRACTOR SERVICE, INC.Malabar, FL · Inactive | Malabar, FL | Corporation | Jun 18, 1998 | Inactive |
| CRESTON AVIATION, INC.Fort Lauderdale, FL · Inactive | Fort Lauderdale, FL | Corporation | Nov 30, 1998 | Inactive |