| HMHampstead MFG (T&O, TOOLS) | Hampstead | MD | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
| HPHarmonious Plumbing LLC | New Market | MD | Fabricated Metal Product Manufacturing332913 | — | ◐ LIKELY ACTIVE |
Hercules Custom Iron, LLC | Frederick | MD | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| HBHohmann & Barnard (Maryland) | Columbia | MD | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| HLHonest Logistics LLC | Joppa | MD | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| HAHVAC and Plumbing Fab Shop | Baltimore | MD | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| IFImperial Fabrication LLC | Elkton | MD | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| IMIncremental Machine LLC | Baltimore | MD | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IQInternational Quality Advantage LLC | Windsor Mill | MD | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JWJames Walker Holding Company | Pikesville | MD | Fabricated Metal Product Manufacturing332618 | — | ▲ REPORTED CLOSED |
Jamison Door Company | Hagerstown | MD | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| KWKenwood Welding & Metalizing CO INC | Rosedale | MD | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| LPLab Products, LLC | Havre De Grace | MD | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| LSLaser Specialties, LLC | Westminster | MD | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| LSLee Spring Company MD | Rosedale | MD | Fabricated Metal Product Manufacturing332613 | 1-19 | ◐ LIKELY ACTIVE |
| LCLindstrom Corporation | Hyattsville | MD | Fabricated Metal Product Manufacturing332321 | 20-99 | ◐ LIKELY ACTIVE |
| MIMaccaferri, INC. | Hagerstown | MD | Fabricated Metal Product Manufacturing332618 | — | ◐ LIKELY ACTIVE |
| MSMaryland Spring | Baltimore | MD | Fabricated Metal Product Manufacturing332613 | 20-99 | ◐ LIKELY ACTIVE |
| MLMazzella Lifting Technologies (Baltimore) | Baltimore | MD | Fabricated Metal Product Manufacturing332618 | 20-99 | ◐ LIKELY ACTIVE |
| M9Miner 9574 Deereco (HQ) | Lutherville Timonium | MD | Fabricated Metal Product Manufacturing332321 | 1-19 | ◐ LIKELY ACTIVE |
| MBMiner - Baltimore | Essex | MD | Fabricated Metal Product Manufacturing332321 | 20-99 | ◐ LIKELY ACTIVE |
| MMMitzel Machine LLC | Westminster | MD | Fabricated Metal Product Manufacturing332710 | — | ▲ REPORTED CLOSED |
| PLPoolesville Lawn Equipment INC | Poolesville | MD | Fabricated Metal Product Manufacturing332510 | — | ◐ LIKELY ACTIVE |
| PMProgressive Machine, LLC | Beltsville | MD | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| PSProtechnology Solutions LLC | Elkridge | MD | Fabricated Metal Product Manufacturing332410 | — | ◐ LIKELY ACTIVE |
| RCR.l. Collinson, INC | Crofton | MD | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| RWRoyal Worldwide LLC | Odenton | MD | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| SRSchuster Refab LLC | Baltimore | MD | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| SWSonco Worldwide INC | Capitol Heights | MD | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| SCSparks Custom Metal Works LLC | California | MD | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| SEStanley engineering co | Glenn Burnie | MD | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| SMStauffer's Machine Shop, INC. | Mechanicsville | MD | Fabricated Metal Product Manufacturing332721 | — | ◐ LIKELY ACTIVE |
| SPSteel Pro INC | Columbia | MD | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| SMStromberg Metal Works INC | Beltsville | MD | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| SSSurvivability Systems, LLC | Bethesda | MD | Fabricated Metal Product Manufacturing332311 | — | ◐ LIKELY ACTIVE |
| TGThe G-s Company | Dundalk | MD | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| TMT & M Machine Shop INC | Beltsville | MD | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| TLTurnbull LLC | Baltimore | MD | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| VFValmet Flow Control Inc - Linthicum | Linthicum | MD | Fabricated Metal Product Manufacturing332911 | 1-19 | ◐ LIKELY ACTIVE |
| VPVerb Precision, LLC | Severn | MD | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| WMWilliamsport Manufacturing Plant | Williamsport | MD | Fabricated Metal Product Manufacturing332912 | 20-99 | ◐ LIKELY ACTIVE |
| WIWinkler's INC | Baltimore | MD | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
Xometry, INC | North Bethesda | MD | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
Xometry, INC. | Gaithersburg | MD | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| ZCZap Construction LLC | Germantown | MD | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| BLBasw LLC | Prince Frederick | MD | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| FWForestville Welding and Iron Works, INC | Upper Marlboro | MD | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HCHub City Sprinklers, INC. | Hagerstown | MD | Fabricated Metal Product Manufacturing332996 | — | ◐ LIKELY ACTIVE |
Experimental Machine, INC. | Hunt Valley | MD | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| 2W2 Wheel Fabrication LLC | Jessup | MD | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |