| CJCadmus Journal Services | Easton | MD | Printing and Related Support Activities323117 | — | ◇ UNVERIFIED |
| CCCaitec CORP. | Baltimore | MD | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| CPCapricorn Pharma | Frederick | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| CPCavanaugh Press | Rosedale | MD | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CICcl Insertco, LLC | Baltimore | MD | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CCCentral Chemical CORP | Elkton | MD | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| CCCentral Chemical (hagerstown) | Hagerstown | MD | Chemical Manufacturing325312 | — | ◇ UNVERIFIED |
| CRCentral Ready Mix Cambridge Plant | Cambridge | MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CEChaney Enterprises | Upper Marlboro | MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CIChaney Industries | Annapolis | MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CIChc Industries Cleaners Hanger Company | Baltimore | MD | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| CCCianbro Corporation Baltimore Facility | Curtis Bay | MD | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| CMC.j. Miller, LLC - Westminster | Westminster | MD | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CAClark Automatic | Rosedale | MD | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| CNClayburn - New Savage Works | Grantsville | MD | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CMClorox Manufacturing Company | Aberdeen | MD | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| CECoca-cola Enterprises | Hanover | MD | Beverage and Tobacco Product Manufacturing312111 | — | ◇ UNVERIFIED |
| CUComposites USA INC | Bay View | MD | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| CPConcrete Pipe and Precast, LLC | Jessup | MD | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
 Conestoga Wood Specialties | Darlington | MD | Furniture and Related Product Manufacturing337211 | — | ◇ UNVERIFIED |
| CPContinental Plastic Containers | Baltimore | MD | Plastics and Rubber Products Manufacturing326160 | — | ◇ UNVERIFIED |
| CPCorporate Press - Brightseat Road | Landover | MD | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CPCraftsman Press | Cheverly | MD | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CBCrispy Bagel Company | Baltimore | MD | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| CCCrouse Construction CO INC | Aberdeen | MD | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CCCrown Cork & Seal | Fruitland | MD | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| CFCrown Food Packaging, USA | Baltimore | MD | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| DBDa Bosley LLC Dba Milton W Bosley CO | Glen Burnie | MD | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| DLDelmarva Lumber | Willards | MD | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| DYDettling Yacht CO | Denton | MD | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| DLDistrict Lithograph | Forestville | MD | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| DIDresser INC. Wayne Div. | Salisbury | MD | Machinery Manufacturing333913 | — | ◇ UNVERIFIED |
| DSDrs-signal Solutions INC | Gaithersburg | MD | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| DCDuvinge Corporation | Hagerstown | MD | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| DWD & W Rebuilders | Baltimore | MD | Transportation Equipment Manufacturing336340 | — | ◇ UNVERIFIED |
| EAEastalco Aluminum CO | Frederick | MD | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| EOEastern Organ Pipes INC | Hagerstown | MD | Miscellaneous Manufacturing339992 | — | ◇ UNVERIFIED |
 Eastern Plating CO. | Baltimore | MD | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| ECEaton Corp/mission Systems | Westminster | MD | Transportation Equipment Manufacturing336413 | — | ◇ UNVERIFIED |
| EPEditors Press | Hyattsville | MD | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| EIEisai, INC | Baltimore | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| EIEisai, INC. | Baltimore | MD | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| EAElf Atochem North America, INC | Baltimore | MD | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| EIEliquitech, INC | Eldersburg | MD | Food Manufacturing311942 | — | ◇ UNVERIFIED |
| EFElkton Farm Firehole | Elkton | MD | Chemical Manufacturing325920 | — | ◇ UNVERIFIED |
| ESEnvironmental Sign Systems | Queenstown | MD | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| ECEquality Concrete - Seat Pleasant | Seat Pleasant | MD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| EIEvapco, INC. - York St. | Taneytown | MD | Leather and Allied Product Manufacturing316211 | — | ◇ UNVERIFIED |
| ERExcalibur Realty Company | Beltsville | MD | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| FDFabrication Designs, INC. | Hyattsville | MD | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
