| POPort of Leonardtown Winery | Leonardtown, MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RHRunning Hare Vineyard | Prince Frederick, MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SISeakeeper, INC. | California, MD | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| SDSigma Defense Systems LLC | Lexington Park, MD | Computer and Electronic Product Manufacturing334290 | — | ◐ LIKELY ACTIVE |
| SISolomon's Island | Patuxent River, MD | Transportation Equipment Manufacturing336413 | 100–499 | ◐ LIKELY ACTIVE |
| SISolomons Island Winery | Hollywood, MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| STSouthern Trail Distillery | Mechanicsville, MD | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| SCSparks Custom Metal Works LLC | California, MD | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| SBStauffers Butcher Barn LLC | Mechanicsville, MD | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SMStauffer's Machine Shop, INC. | Mechanicsville, MD | Fabricated Metal Product Manufacturing332721 | — | ◐ LIKELY ACTIVE |
| SCStill Creek Vineyards | Avenue, MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TSThe Sanchez Group of Companies, LLC | Callaway, MD | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| VHVu Holdings, LLC | Hollywood, MD | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| WFWest Forty Market, LLC | Mechanicsville, MD | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| WSWhistle Stop Winery, LLC | Dunkirk, MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| XWXella Winery and Vineyard | Mechanicsville, MD | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| BLBasw LLC | Prince Frederick, MD | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| ASAviation Systems Technologies, LLC | Hollywood, MD | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| BIBardon, INC. Dba Aggregate Industries - Hollywood Asphalt | Hollywood, MD | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CSChoice Stairways INC | Prince Frederick, MD | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| CCCommunications Construction Group LLC | Chesapeake Beach, MD | Electrical Equipment, Appliance & Component Manufacturing335929 | — | ◇ UNVERIFIED |
| HCHowlin Concrete, INC. | Owings, MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JTJ.f. Taylor, INC | Lexington Park, MD | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| JTJf Taylor Inc, (fif Building) | Lexington Park, MD | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| MBMully's Brewery, LLC | Prince Frederick, MD | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
National Ink and Stitch LLC | Dunkirk, MD | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| NLNovores, LLC | Huntingtown, MD | Miscellaneous Manufacturing339930 | — | ◇ UNVERIFIED |
| PAPlatform Aerospace Hollywood | Hollywood, MD | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| RFR&R Fabrication Enterprises, LLC | Prince Frederick, MD | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| RFR&r Fabrication, INC. | Prince Frederick, MD | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| SSSailing Specialty Partners, INC. | Hollywood, MD | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| TWThe Wekend LLC | Leonardtown, MD | Food Manufacturing311351 | — | ◇ UNVERIFIED |
| TSTivrant Shifting Dynamics | Sunderland, MD | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| USUltimate Steel & Fabrication LLC | Mechanicsville, MD | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| UEUS Epa - Southern Maryland Wood Treat | Hollywood, MD | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| VWVeteran Wood Creations Inc. | Owings, MD | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| WHWilliams & Heintz Map Corporation | Prince Frederick, MD | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |