| CSCustom Sheet Metal, INC. | Gaithersburg | — | ◇ UNVERIFIED |
| DEDesign Enterprizes, LLC | Westminster | — | ◇ UNVERIFIED |
| DVDixon Valve & Coupler Company INC | Chestertown | — | ◇ UNVERIFIED |
| DMDrexel Metals, INC. | Elkridge | — | ◇ UNVERIFIED |
| DADrm Associates, INC. | Manchester | — | ◇ UNVERIFIED |
| DPD-s Pipe & Steel Supply, LLC | Baltimore | — | ◇ UNVERIFIED |
| ESEddy S Welding INC | Ellicott City | — | ◇ UNVERIFIED |
| EPEesco Pump - Valve | Baltimore | — | ◇ UNVERIFIED |
| ESEfs Structures | Linthicum | — | ◇ UNVERIFIED |
| ECElectromet Corporation- Machine Shop | Hagerstown | — | ◇ UNVERIFIED |
| EHEric Harvey | Easton | — | ◇ UNVERIFIED |
| FTFabro Technologies | Halethorpe | — | ◇ UNVERIFIED |
| FTFairlawn Tool, INC. | Hampstead | — | ◇ UNVERIFIED |
| FIFlowrox, INC. | Linthicum | — | ◇ UNVERIFIED |
| GMGeneral Machine Shop, INC. | Landover | — | ◇ UNVERIFIED |
| GMGischel Machine CO INC | Curtis Bay | — | ◇ UNVERIFIED |
| GMGross Mechanical Laboratories, INC. | Stevensville | — | ◇ UNVERIFIED |
| HEHalethorpe Extrusions INC | Baltimore | — | ◇ UNVERIFIED |
| HSHopewell Sheet Metal Manufacturing, LLC | Hagerstown | — | ◇ UNVERIFIED |
| HOHouse of Balance, INC | Elkridge | — | ◇ UNVERIFIED |
| IFIron Fabrication Services, INC. | Jessup | — | ◇ UNVERIFIED |
| IWIron Works, INC. | Denton | — | ◇ UNVERIFIED |
| IWIron World Manufacturing LLC | Laurel | — | ◇ UNVERIFIED |
| KMKarl Maniufacturing Company, INC. | Rosedale | — | ◇ UNVERIFIED |
| KCKawneer Company INC. | Hanover | — | ◇ UNVERIFIED |
| KIKeen Industries, INC. | Halethorpe | — | ◇ UNVERIFIED |
 Kinetic Systems, INC. | Frederick | — | ◇ UNVERIFIED |
| KMKnarr Metal Building Systems LLC | Sykesville | — | ◇ UNVERIFIED |
| KKKustom Kare Metal Finishing, LLC | Edgewood | — | ◇ UNVERIFIED |
| LMLf Machine Company | Frederick | — | ◇ UNVERIFIED |
| LMLinda M. Orr-ciccozzi | Beltsville | — | ◇ UNVERIFIED |
| LFLong Fence Company, INC. | Ijamsville | — | ◇ UNVERIFIED |
| LSL & S Machine Co., INC. | Halethorpe | — | ◇ UNVERIFIED |
| MIMarelco, INC. and Its Successors and Assigns | Beltsville | — | ◇ UNVERIFIED |
| MKMark Knoedler | Ijamsville | — | ◇ UNVERIFIED |
| MRMarshall Ruby INC | Frostburg | — | ◇ UNVERIFIED |
| MMMaryland Metals Processing, INC. | Sparrows Point | — | ◇ UNVERIFIED |
| MSMaryland Structural Fabricators INC | Millington | — | ◇ UNVERIFIED |
| MDM & D Machine Company | Linthicum | — | ◇ UNVERIFIED |
| MTMetro Test and Balance, INC. | Capitol Heights | — | ◇ UNVERIFIED |
| MWMontgomery Window Products Co. | Frederick | — | ◇ UNVERIFIED |
| NMNetzer Metalcraft,Inc. | Essex | — | ◇ UNVERIFIED |
| ODOverhead Door CO of Baltimore | Baltimore | — | ◇ UNVERIFIED |
| PCParagon CNC, LLC | Frederick | — | ◇ UNVERIFIED |
| PLPayback LLC | Laurel | — | ◇ UNVERIFIED |
| PAPlatform Aerospace Hollywood | Hollywood | — | ◇ UNVERIFIED |
| PEPowdercoat Express, LLC | Essex | — | ◇ UNVERIFIED |
| PCPowercon Corporation | Cumberland | — | ◇ UNVERIFIED |
| PPPrefab Plus LLC | Cockeysville | — | ◇ UNVERIFIED |
| QMQuality Machining, INC. | Accident | — | ◇ UNVERIFIED |
