| IMIndiana Model Company Incorporated - Plant 2 | Indianapolis | IN | — | ◇ UNVERIFIED |
| IRIndian River All-fab, INC. | Vero Beach | FL | — | ◇ UNVERIFIED |
| IDIndustrial Design & Fabrication INC | Mcewen | TN | — | ◇ UNVERIFIED |
| IFIndustrial Fabricators, INC. | Gastonia | NC | — | ◇ UNVERIFIED |
| IFIndustrial Fabricators, INC - Vc Plant | Gastonia | NC | — | ◇ UNVERIFIED |
| IGIndustrial Graphics Corporation | Chicago | IL | — | ◇ UNVERIFIED |
| IHIndustrial Hardfacing, Inc | Lamoni | IA | — | ◇ UNVERIFIED |
| IHIndustrial Holdings of Tampa LLC | Tampa | FL | — | ◇ UNVERIFIED |
| IMIndustrial Mechanical, INC. | Hartwell | GA | — | ◇ UNVERIFIED |
| IMIndustrial Metal Craft, INC. | Gastonia | NC | — | ◇ UNVERIFIED |
| IMIndustrial Metal Enterprises, LLC | Idaho Falls | ID | — | ◇ UNVERIFIED |
| IMIndustrial Metal Fabricators | Marine City | MI | — | ◇ UNVERIFIED |
| IMIndustrial Metal Products of Arberdeen, INC | Aberdeen | NC | — | ◇ UNVERIFIED |
| ISIndustrial Sales & Manufacturing | Erie | PA | — | ◇ UNVERIFIED |
| ISIndustrial Screen Process Services, INC. | Toledo | OH | — | ◇ UNVERIFIED |
| ISIndustrial Signs | Metairie | LA | — | ◇ UNVERIFIED |
| ISIndustrial Signs & Neon | Oklahoma City | OK | — | ◇ UNVERIFIED |
| ISIndustrial Splicing and Sling, L.l.c. | Tulsa | OK | — | ◇ UNVERIFIED |
| ITIndustrial Tool & Die INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| ITIndustrial Tube Corp | Hillsborough | NJ | — | ◇ UNVERIFIED |
| ISIndustry Signs | Shavano Park | TX | — | ◇ UNVERIFIED |
| IIInex Image LLC. | Gainesville | GA | — | ◇ UNVERIFIED |
| IAInfinite Ascent LLC | San Marcos | CA | — | ◇ UNVERIFIED |
| IMInfinity Manufactured Industries, INC. | Largo | FL | — | ◇ UNVERIFIED |
| IPIn-Flight Products, LLC | Stanton | CA | — | ◇ UNVERIFIED |
| IAInk and Press, LLC | Douglasville | GA | — | ◇ UNVERIFIED |
| IOInk Outside the Box Incorporated | Hampton | NH | — | ◇ UNVERIFIED |
| IGInkwell Graphix | Watertown | NY | — | ◇ UNVERIFIED |
| IGInnomark Group LLC | Toledo | OH | — | ◇ UNVERIFIED |
| IMInnovated Metal Fabrication Inc | Maplewood | MN | — | ◇ UNVERIFIED |
| IMInnovated Metal Fabrication Inc | Maplewood | MN | — | ◇ UNVERIFIED |
| IMInnovated Metal Fabrication INC | Blaine | MN | — | ◇ UNVERIFIED |
| ILInnovationsmith, LLC | Midlothian | TX | — | ◇ UNVERIFIED |
| IDInnovative Display & Design, Inc. | Milford | CT | — | ◇ UNVERIFIED |
| IEInnovative Emergency Equipment | Riverside | CA | — | ◇ UNVERIFIED |
| IEInnovative Exhaust Solutions, Inc | Lincoln | NE | — | ◇ UNVERIFIED |
| IMInnovative Materials Solutions, LLLP | Golden | CO | — | ◇ UNVERIFIED |
| IMInnovative Medical Device Solutions | Chandler | AZ | — | ◇ UNVERIFIED |
| IRInnovative Renovations Inc | Denver | CO | — | ◇ UNVERIFIED |
| ISInnovative Sheet Metals LLC | Bradenton | FL | — | ◇ UNVERIFIED |
 Innovative Signs, INC. | Caledonia | WI | — | ◇ UNVERIFIED |
| ILInnovision Led | Buffalo | NY | — | ◇ UNVERIFIED |
| IMInox Market America | Muncie | IN | — | ◇ UNVERIFIED |
| ICInpro Corporation-signscape Division | Muskego | WI | — | ◇ UNVERIFIED |
| ISInsignia Sign INC | Renton | WA | — | ◇ UNVERIFIED |
| IBInspired Bronze, INC. | Deland | FL | — | ◇ UNVERIFIED |
| IEIntegral Engineering & Fabrication INC | City of Industry | CA | — | ◇ UNVERIFIED |
| IPIntegral Properties LLC | Tumwater | WA | — | ◇ UNVERIFIED |
| IDIntegrated Dynamic Metals Corp | Marlborough | MA | — | ◇ UNVERIFIED |
| IHIntegrated Holdings, Inc. | Romeo | MI | — | ◇ UNVERIFIED |
