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| MOUNTAIN EXPRESS LLCHaines City, FL · Active | Haines City, FL | LLC | Oct 1, 2020 | Active |
| WELCOME! HAINES CITY, FLORIDA, INC.Haines City, FL · Active | Haines City, FL | Nonprofit | May 13, 2019 | Active |
| PALM SQUARE APARTMENTS, LLCHaines City, FL · Active | Haines City, FL | LLC | Jan 14, 2011 | Active |
| LAKE BUCKEYE APARTMENTS, LLCHaines City, FL · Active | Haines City, FL | LLC | Dec 28, 2010 | Active |
| BRADS DISCOUNT TIRE AND AUTO LLCHaines City, FL · Active | Haines City, FL | LLC | Aug 6, 2009 | Active |
| MASON PROPERTY MANAGEMENT, INC.Haines City, FL · Active | Haines City, FL | Corporation | Sep 11, 2006 | Active |
| MASON PROPERTIES, LLCHaines City, FL · Active | Haines City, FL | LLC | Jun 8, 2006 | Active |
| EIGHTH VENTURE, LLCHaines City, FL · Active | Haines City, FL | LLC | May 18, 2005 | Active |
| NINTH VENTURE, LLCHaines City, FL · Active | Haines City, FL | LLC | May 18, 2005 | Active |
| FIFTH VENTURE, LLCHaines City, FL · Active | Haines City, FL | LLC | May 6, 2004 | Active |
| FOURTH VENTURE, LLCHaines City, FL · Active | Haines City, FL | LLC | Apr 7, 2004 | Active |
| COMBINED BIOTECH HOLDINGS, LLCJacksonville, FL · Active | Jacksonville, FL | LLC | Jul 19, 2018 | Active |
| MASON INVESTMENT VENTURES, LLLPWinter Haven, FL · Active | Winter Haven, FL | Partnership | Dec 30, 2020 | Active |
| SEVENTH VENTURE, LLCWinter Haven, FL · Active | Winter Haven, FL | LLC | Jan 20, 2005 | Active |
| SECOND VENTURE, INC.Haines City, FL · Active | Haines City, FL | Corporation | Mar 12, 1976 | Active |
| GREENLEAF TRUCKING, LLC.Davenport, FL · Inactive | Davenport, FL | LLC | May 29, 2002 | Inactive |
| THIRD VENTURE, LLCHaines City, FL · Inactive | Haines City, FL | LLC | Feb 24, 2003 | Inactive |
| BCR HOLDINGS, LLCJacksonville, FL · Inactive | Jacksonville, FL | LLC | Apr 11, 2003 | Inactive |
| SIXTH VENTURE, LLCHaines City, FL · Inactive | Haines City, FL | LLC | Jan 20, 2005 | Inactive |
| BCR HOLDINGS SERIES B, LLCJacksonville, FL · Inactive | Jacksonville, FL | LLC | Jul 22, 2013 | Inactive |
| CHANGES IN ALTITUDE, LLC.Tampa, FL · Inactive | Tampa, FL | LLC | Sep 8, 2014 | Inactive |
| SHOULDER TREATMENT LLCHaines City, FL · Inactive | Haines City, FL | LLC | Sep 14, 2016 | Inactive |
| YOU CAN THANK ANNE HUFFMAN, LLCHaines City, FL · Inactive | Haines City, FL | LLC | Oct 25, 2017 | Inactive |
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| CONQUEST 2 AVIATION, LLCHaines City, FL · Active | Haines City, FL | LLC | Jun 20, 2024 | Active |
| HORNETS BOOSTER CLUB, INC.Haines City, FL · Inactive | Haines City, FL | Nonprofit | Mar 16, 2021 | Inactive |
| 19 CAFE, INC.Punta Gorda, FL · Inactive | Punta Gorda, FL | Corporation | Dec 8, 2003 | Inactive |
| GREENLEAF WOOD PRODUCTS, INC.Haines City, FL · Active | Haines City, FL | Corporation | Jul 22, 1996 | Active |
| MASON ENTERPRISES, INC.Clearwater, FL · Inactive | Clearwater, FL | Corporation | Nov 15, 1996 | Inactive |
| CHIPPING, INC.Fort Myers, FL · Inactive | Fort Myers, FL | Corporation | Aug 6, 1998 | Inactive |