| CICrystal Industries Incorporated | Elkhart | IN | — | ◇ UNVERIFIED |
| CSCrystal Steel | Gallaway | TN | — | ◇ UNVERIFIED |
| CSCrystal Steel Fabricators, LLC - Memphis Division | Gallaway | TN | — | ◇ UNVERIFIED |
| CCCs Consulting Services, CORP. | Deer Park | TX | — | ◇ UNVERIFIED |
| CEC&s Engineering, INC. | Meriden | CT | — | ◇ UNVERIFIED |
| CICsi Industries, INC. | Fairview | PA | — | ◇ UNVERIFIED |
 Csi Manufacturing, INC. | Cambridge | IL | — | ◇ UNVERIFIED |
| CMCs Manufacturing | Cedar Springs | MI | — | ◇ UNVERIFIED |
| CSC S Mfg INC | Cedar Springs | MI | — | ◇ UNVERIFIED |
| CPC&s Plastics | Winter Haven | FL | — | ◇ UNVERIFIED |
| CSC & S Prototyping, LLC | Columbus | IN | — | ◇ UNVERIFIED |
| CPCtc Plastics | Dayton | OH | — | ◇ UNVERIFIED |
| CDCt Distribution, LLC Dba Ctr Cooling Tower Resources, INC. | Chickasha | OK | — | ◇ UNVERIFIED |
| CICtec INC. | Sacramento | CA | — | ◇ UNVERIFIED |
| CCCtp Carrera, INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| CECue Energy Products | Dallas | TX | — | ◇ UNVERIFIED |
| CECulver Enterprises INC | Grants Pass | OR | — | ◇ UNVERIFIED |
| CTCulver Tool & Die, INC. | Lewisberry | PA | — | ◇ UNVERIFIED |
| CICumberland Ironworks, INC. | Durham | ME | — | ◇ UNVERIFIED |
| CPCumberland Plastic Systems, L.l.c. | Auburn | AL | — | ◇ UNVERIFIED |
| CSCundiff Steel Fab & Erecting | Orange | CA | — | ◇ UNVERIFIED |
| CSCundiff Steel Fabricating & Erecting INC | Orange | CA | — | ◇ UNVERIFIED |
| CPCurbs Plus INC | Ringgold | GA | — | ◇ UNVERIFIED |
| CPCurbs Plus, INC | Glendale | AZ | — | ◇ UNVERIFIED |
 Curd Enterprises INC Multiplastics | Mount Pleasant | SC | — | ◇ UNVERIFIED |
| CACustom Air Ducts By Rick LLC | Saint Louis Park | MN | — | ◇ UNVERIFIED |
| CMCustom-bilt Metals | Mcclellan | CA | — | ◇ UNVERIFIED |
| CBCustom Building Components INC | Medford | MN | — | ◇ UNVERIFIED |
| CCCustom Composites, LLC | Shoemakersville | PA | — | ◇ UNVERIFIED |
| CCCustom Concepts Miami Inc | Miami | FL | — | ◇ UNVERIFIED |
| CCCustom Copper Designs | Edmond | OK | — | ◇ UNVERIFIED |
| CCCustom Corrugated & Supply, LLC | Gray | LA | — | ◇ UNVERIFIED |
 Custom Design & Manufacturing | Carrollton | MI | — | ◇ UNVERIFIED |
| CECustomed Engineered Wheels, INC. | Tupelo | MS | — | ◇ UNVERIFIED |
| CECustom Engineered Wheels INC. | Warsaw | IN | — | ◇ UNVERIFIED |
| CFCustom Fabricated Metals, LLC | Perris | CA | — | ◇ UNVERIFIED |
| CFCustom Fiberglass Works, INC. | Red Bluff | CA | — | ◇ UNVERIFIED |
| CHCustom Hardwoods INC. | Summerfield | OH | — | ◇ UNVERIFIED |
 Custom Iron Works | Lodi | CA | — | ◇ UNVERIFIED |
| Custom Iron Works, INC. | South Beloit | IL | — | ◇ UNVERIFIED |
| CLCustom Land Holding Company LLC | LaBelle | FL | — | ◇ UNVERIFIED |
| CMCustom Manufacturing and Engineering INC | Lino Lakes | MN | — | ◇ UNVERIFIED |
| CMCustom Marble Solutions (1409001189) | West Chester Twp. | OH | — | ◇ UNVERIFIED |
| CMCustom Metal Products, INC. | Los Angeles (chatsworth Area) | CA | — | ◇ UNVERIFIED |
| CMCustom Metal Roofing, INC. | Murrayville | GA | — | ◇ UNVERIFIED |
| CMCustom Metals | Little Rock | AR | — | ◇ UNVERIFIED |
| CMCustom Metal & Siding | Leesville | LA | — | ◇ UNVERIFIED |
| CPCustom Packline Engineering | Visalia | CA | — | ◇ UNVERIFIED |
 Custom Products Group, INC. | Melbourne | FL | — | ◇ UNVERIFIED |
| CRCustom Roto-Mold Properties, LLC | Benson | MN | — | ◇ UNVERIFIED |
| CSCustom Sheet and Plate, LLC | Tarentum | PA | — | ◇ UNVERIFIED |
| CSCustom Sheet and Steel Fabrication INC. | Council Grove | KS | — | ◇ UNVERIFIED |
| CSCustom Sheet Metal, INC. | Gaithersburg | MD | — | ◇ UNVERIFIED |
| CSCustom Sheetmetal Services, INC. | Durham | NC | — | ◇ UNVERIFIED |
| CSCustom Sheet & Steel Fabricators | Council Grove | KS | — | ◇ UNVERIFIED |
| CSCustom Staffing, INC. | Bloomdale | OH | — | ◇ UNVERIFIED |
| CSCustom Stainless Steel Equipment Co. Inc. | LaBelle | FL | — | ◇ UNVERIFIED |
| CSCustom Stainless Steel INC | Shoreview | MN | — | ◇ UNVERIFIED |
| CSCustom Steel Manufacturing INC. | Belton | MO | — | ◇ UNVERIFIED |
| CSCustom Steel Service | Ames | IA | — | ◇ UNVERIFIED |
| CWCustom Welding INC. | Frenchtown | NJ | — | ◇ UNVERIFIED |
| CECutting Edge Fabrication, INC. | Gastonia | NC | — | ◇ UNVERIFIED |
| CECutting Edge Grinding, Inc. | Little Falls | MN | — | ◇ UNVERIFIED |
| CECutting Edge Modular INC. | Woodland | CA | — | ◇ UNVERIFIED |
| CLCW Laser and Fabrication LLC | Grandview | MO | — | ◇ UNVERIFIED |
| CPCw Precision Fabrication and Welding, INC. | Houston | TX | — | ◇ UNVERIFIED |
| CSCwp Sheet Metal, INC. | Geneva | FL | — | ◇ UNVERIFIED |
| CSCw Seahorn Enterprises LTD | Houston | TX | — | ◇ UNVERIFIED |
| CCws-sf | Miami | FL | — | ◇ UNVERIFIED |
| CMCygnet Manufacturing CO. INC | Oaks | PA | — | ◇ UNVERIFIED |
| CFCyncal Fabricators Inc | Bay Shore | NY | — | ◇ UNVERIFIED |
| CPCy Plastics Works INC. | Honeoye | NY | — | ◇ UNVERIFIED |
| CMCypress Manufacturing Company | Salinas | CA | — | ◇ UNVERIFIED |
 Dacobe Enterprises, LLC | Utica | NY | — | ◇ UNVERIFIED |
| DEDade Engineering Group LLC | Miami | FL | — | ◇ UNVERIFIED |
| DUDaeil USA Corporation | Valley | AL | — | ◇ UNVERIFIED |
| DID'agostino Iron Works | East Rochester | NY | — | ◇ UNVERIFIED |
| DMDaher-tli Manufacturing | Abingdon | VA | — | ◇ UNVERIFIED |
| DID.a. INC. | Santa Teresa | NM | — | ◇ UNVERIFIED |
| DWDakota Western Corporation | Sisseton | SD | — | ◇ UNVERIFIED |
| DIDaktronics INC | Redwood Falls | MN | — | ◇ UNVERIFIED |
| DIDalco Industries | Billings | MT | — | ◇ UNVERIFIED |
| DIDalco Industries, INC. | Denver | CO | — | ◇ UNVERIFIED |
| DJDale Jech Const LLC Dba Creative Modular Concepts | Kasson | MN | — | ◇ UNVERIFIED |
 Dallas Lighthouse for the Blind | Dallas | TX | — | ◇ UNVERIFIED |
| DIDalsin Industries INC | Bloomington | MN | — | ◇ UNVERIFIED |
| DMD&a Metal Fabrication INC | Van Nuys | CA | — | ◇ UNVERIFIED |
| DDDan Dee Air INC. | Hutchinson | KS | — | ◇ UNVERIFIED |
 Dane Manufacturing | Waunakee | WI | — | ◇ UNVERIFIED |
| DADaniel Alfred Candelaria, an Individual | Lathrop | CA | — | ◇ UNVERIFIED |
| DLDaniel Lang | Roseburg | OR | — | ◇ UNVERIFIED |
| DLDaniels' Louver & Sheet Metal Company, INC. | Mobile | AL | — | ◇ UNVERIFIED |
| DSDaniels Sheet Metal | Orange Beach | AL | — | ◇ UNVERIFIED |
| DCDan-Kar Corp. | Woburn | MA | — | ◇ UNVERIFIED |
| DCDan-Kar Corp. | Woburn | MA | — | ◇ UNVERIFIED |
| DMDanny Music Sheet Metal | Lilburn | GA | — | ◇ UNVERIFIED |
| DSDan's Steel Company | Salem | OR | — | ◇ UNVERIFIED |
| DSDan's Steel Company INC | Salem | OR | — | ◇ UNVERIFIED |
| DWDanvid Window | Carrollton | TX | — | ◇ UNVERIFIED |
| DPDAPA Products, Inc. | Jasper | AL | — | ◇ UNVERIFIED |
