| TDTilley Distribution | Middle River, MD | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
| TLTruroots, LLC | Havre De Grace, MD | Food Manufacturing311411 | 20–99 | ◐ LIKELY ACTIVE |
 Vac Pac, INC. | Middle River, MD | Paper Manufacturing322121 | — | ◐ LIKELY ACTIVE |
| VTVibrantz Technologies | Curtis Bay, MD | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| WWaterloo | Jessup, MD | Food Manufacturing311942 | 100–499 | ◐ LIKELY ACTIVE |
| WRW R Grace and CO – Curtis Bay Works | Curtis Bay, MD | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
| BIBsc Ind | Baltimore, MD | Chemical Manufacturing325320 | — | ◐ LIKELY ACTIVE |
| GSGray & Son, INC. - Finksburg | Finksburg, MD | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| HMHeidelberg Materials US Cement LLC | Union Bridge, MD | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| KWKemira Water Solutions, INC. | Baltimore, MD | Chemical Manufacturing325180 | — | ◐ LIKELY ACTIVE |
| LBLafarge Building Material INC | Sparrows Point, MD | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| MAMaryland and Virginia Milk, Laurel LLC | Laurel, MD | Food Manufacturing311511 | — | ◐ LIKELY ACTIVE |
| NSNorthrop-grumman Systems CORP. - Atl | Linthicum, MD | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| NGNorthrop Grumman Systems CORP. - Bwi | Linthicum, MD | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| SCS&g Concrete Brooklyn Plant | Baltimore, MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| ACAai Corporation | Cockeysville, MD | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| BDBlack & Decker | Hampstead, MD | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| BABonsal American INC | White Marsh, MD | Petroleum and Coal Products Manufacturing324122 | — | ◇ UNVERIFIED |
| COChesapeake Optical Lab | Baltimore, MD | Miscellaneous Manufacturing339115 | — | ◇ UNVERIFIED |
| CBClendenin Brothers | Baltimore, MD | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| CPConcrete Pipe & Products | Jessup, MD | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| EAEastalco Aluminum Company | Baltimore, MD | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| EIEvapco Inc-taneytown | Taneytown, MD | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| GMGaf Materials Corporation | Highlandtown, MD | Petroleum and Coal Products Manufacturing324122 | — | ◇ UNVERIFIED |
| HSHarford Systems | Aberdeen, MD | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| MPMd Precision Spring | Essex, MD | Fabricated Metal Product Manufacturing332611 | — | ◇ UNVERIFIED |
| NCNoxell CORP | Hunt Valley, MD | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| PBPike Baltimore Terminals LLC - Baltimore Terminal | Baltimore, MD | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| PCPoly-seal CORP | Baltimore, MD | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| PMPrecoat Metals Division of Sequa Corporation | Elkridge, MD | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| SCSchuster Concrete Ready Mix, LLC | Owings Mills, MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SGS & G Concrete Company, Llc- Grantley Ave. Plant | Baltimore, MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| WMWard Machinery Company | Cockeysville, MD | Machinery Manufacturing333243 | — | ◇ UNVERIFIED |
 Aerolab LLC | Jessup, MD | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
 Armr Systems, INC. | Baltimore, MD | Miscellaneous Manufacturing339112 | — | ◐ LIKELY ACTIVE |
 Astek Diagnostics INC. | Halethorpe, MD | Chemical Manufacturing325413 | — | ◐ LIKELY ACTIVE |
 Capitol Carbonic CORP | Catonsville, MD | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| CPCartridge Plus, INC. | Annapolis, MD | Miscellaneous Manufacturing339940 | — | ◐ LIKELY ACTIVE |
 Certher Creek Integrated Services Limited Liability Company | Laurel, MD | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
 Chesapeake Systems International, LLC | Baltimore, MD | Computer and Electronic Product Manufacturing334112 | — | ◐ LIKELY ACTIVE |
| CCClipper City Brewing Company LP | Baltimore, MD | Beverage and Tobacco Product Manufacturing312120 | — | ◐ LIKELY ACTIVE |
 Diamond Enterprises INC | Pasadena, MD | Printing and Related Support Activities323113 | — | ◐ LIKELY ACTIVE |
| ESEastern Shore Enterprises, INC. | Grasonville, MD | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| ECEko Consulting Services LLC | Glen Burnie, MD | Furniture and Related Product Manufacturing337127 | — | ◐ LIKELY ACTIVE |
 Elta North America INC. | Annapolis Junction, MD | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
 Emily Rose Cooper | Severna Park, MD | Paper Manufacturing322230 | — | ◐ LIKELY ACTIVE |
| EFEnterprise Furniture Consultants, INC | Baltimore, MD | Furniture and Related Product Manufacturing337214 | — | ◐ LIKELY ACTIVE |
 Frontline Coins USA LLC | Owings Mills, MD | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
 Fse Diya INC | Elkridge, MD | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◐ LIKELY ACTIVE |
 Hogentogler & Co., INC. | Columbia, MD | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
