Craig Technologies INC | Seaford | 20–99 | ● ACTIVE |
| VSV & S Delaware Galvanizing LLC | New Castle | 20–99 | ● ACTIVE |
A&f Machine Development LLC | Newark | — | ● ACTIVE |
Apex Manufacturing Group INC | Newark | — | ● ACTIVE |
| CSCrystal Steel Fabricators INC | Delmar | — | ● ACTIVE |
| HIHirsh Industries INC | Dover | 100–499 | ● ACTIVE |
Polarstar Engineering & Machine, LLC | Newark | — | ● ACTIVE |
R. C. Fabricators, INC. | Wilmington | — | ● ACTIVE |
Aire Renaissance By Osa, LLC | Lewes | — | ● ACTIVE |
Allied Precision, INC. | Middletown | — | ● ACTIVE |
Building Concepts of America, INC. | Newark | — | ● ACTIVE |
Celsia INC | Georgetown | — | ● ACTIVE |
Chuck George INC | Wilmington | — | ● ACTIVE |
| CSCompass Systems & Sales LLC | Wilmington | — | ● ACTIVE |
Cowboy Painting Company LLC | Middletown | — | ● ACTIVE |
| DIDiamond Industrial INC | Wilmington | — | ● ACTIVE |
Fluxa Industrial Solutions LLC | Dover | — | ● ACTIVE |
Forcebeyond LLC | New Castle | — | ● ACTIVE |
Machinist Mate Services LLC | Newark | — | ● ACTIVE |
Miller Metal Fabrication INC | Bridgeville | — | ● ACTIVE |
Msi Fab LLC | Newark | — | ● ACTIVE |
Omni Services, INC. | New Castle | — | ● ACTIVE |
Strong Women Industrial Materials, LLC | Bear | — | ● ACTIVE |
Thermal Pipe Systems INC | Wilmington | — | ● ACTIVE |
Tuskegee Aeronautical Engineering INC | Wilmington | — | ● ACTIVE |
| MMMetal Masters Foodservice Equipment CO. | Clayton | — | ◐ LIKELY ACTIVE |
| CWColor Works Painting - Edwards Avenue | New Castle | — | ◇ UNVERIFIED |
| OSOwen Steel Company | Wilmington | — | ◇ UNVERIFIED |
| DTDuhadaway Tool & Die Shop INC | Newark | — | ◐ LIKELY ACTIVE |
| ICIndustraplate CORP | Wilmington | — | ◐ LIKELY ACTIVE |
| SASatys Aftermarket Delaware LLC | New Castle | — | ◐ LIKELY ACTIVE |
| SSSummit Steel, INC. | New Castle | — | ◐ LIKELY ACTIVE |
| ADAlderman Datsun | New Castle | — | ◇ UNVERIFIED |
| CDChrome Deposit Corporation | Newark | — | ◇ UNVERIFIED |
| CTCraig Technologies | Seaford | — | ◇ UNVERIFIED |
| HTHarper Thiel | Wilmington | — | ◇ UNVERIFIED |
| HDHomalite Div of Brandywine Inv Group | Wilmington | — | ◇ UNVERIFIED |
| IMInternational Mill Service | Claymont | — | ◇ UNVERIFIED |
| LCLaidlaw Corporation | New Castle | — | ◇ UNVERIFIED |
| PFPerma - Flex Rollers (closed) | Newark | — | ◇ UNVERIFIED |
| PPProcino Plating | Blades | — | ◇ UNVERIFIED |
| STStandard Technologies & Machine CO | Wilmington | — | ◇ UNVERIFIED |
| BIBrickner Industrial Ne INC | Claymont | — | ◐ LIKELY ACTIVE |
| HMHigh-tech Machine CO INC | Wilmington | — | ◐ LIKELY ACTIVE |
| MMMcCabe's Mechanical Service, Inc. | Georgetown | 20–99 | ◐ LIKELY ACTIVE |
| NHNew Hudson Facades - DE | New Castle | 1–19 | ◐ LIKELY ACTIVE |
| PAPrecise Alignment Machine Tool CO. | Newark | — | ◐ LIKELY ACTIVE |
| ATAlly Tactical Solutions LLC | Bear | — | ◐ LIKELY ACTIVE |
| AUAlutech United, INC. | Selbyville | — | ◇ UNVERIFIED |
| AEAnchor Enterprises | Blades | — | ◇ UNVERIFIED |