| IIINDUSTRIAL IRON WORKS, INC., dba ADAMS FERTILIZER EQUIPMENT | Dewitt | AR | 100–499 | ◐ LIKELY ACTIVE |
| IMIndustrial Maintenance and Welding | Chicago | IL | 100–499 | ◐ LIKELY ACTIVE |
| IMIndustrial Manufacturing Services | Lancaster | SC | 20–99 | ◐ LIKELY ACTIVE |
| IMIndustrial Metal Enterprises LLC | Blackfoot | ID | 20–99 | ◐ LIKELY ACTIVE |
| IMIndustrial Mold Manufacturer | Grafton | WI | 20–99 | ◐ LIKELY ACTIVE |
| IPIndustrial Products | Coon Rapids | MN | 20–99 | ◐ LIKELY ACTIVE |
| IPIndustrial Products and Sales, LLC | Portsmouth | VA | — | ◐ LIKELY ACTIVE |
| ISIndustrial Services and Technologies, Inc. | Sidney, OH | OH | 20–99 | ◐ LIKELY ACTIVE |
| ISIndustrial Stripping Services LLC | Grand Rapids | MI | 20–99 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG Bartell | Rome | NY | 100–499 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG CA Design Raleigh | Raleigh | NC | 20–99 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG Electric Eel | Springfield | OH | 20–99 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG Field Controls | Kinston | NC | 100–499 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG Insight Vision | Saukville, WI | WI | 1–19 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG Precision Engineering | Uxbridge | MA | 20–99 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG Spartan Tool | Niles | MI | 100–499 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG Versatile Mold and Design | Rutledge | GA | 20–99 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG WakefieldNashua | Nashua | NH | 100–499 | ◐ LIKELY ACTIVE |
| IVIndustrial Ventilation, Inc. - PA | Pasco | WA | 20–99 | ◐ LIKELY ACTIVE |
| IIndy | Indianapolis | IN | 1–19 | ◐ LIKELY ACTIVE |
| IIIN-FAB Inc. | Bedford | IN | 20–99 | ◐ LIKELY ACTIVE |
| IDInfastech, Decorah MFG (IND, EF) Emhart Tecknologies LLC | Decorah | IA | 100–499 | ◐ LIKELY ACTIVE |
| IDInfinity Drain LTD | Amityville | NY | 100–499 | ◐ LIKELY ACTIVE |
| IVInfluunt Vascular INC | Acton | MA | — | ◐ LIKELY ACTIVE |
| IRIngersoll Rand | Buffalo | NY | 100–499 | ◐ LIKELY ACTIVE |
| IIIngersoll-rand Industrial U.s., INC. | Davidson | NC | — | ◐ LIKELY ACTIVE |
| IMInland Midwest Corporation | Elmhurst | IL | 20–99 | ◐ LIKELY ACTIVE |
| ITInlet Tools, INC | Conneautville | PA | — | ◐ LIKELY ACTIVE |
| IFInline Filling Systems | Palmetto | FL | 20–99 | ◐ LIKELY ACTIVE |
| IBInner Banks Diesel, INC | Bath | NC | — | ◐ LIKELY ACTIVE |
| IWInnisfallen Works | Springfield | OH | 20–99 | ◐ LIKELY ACTIVE |
| ILInnova LLC | Grapevine | TX | — | ◐ LIKELY ACTIVE |
| IAInnovation and Technology Center | Brookpark | OH | 20–99 | ◐ LIKELY ACTIVE |
| IAInnovation Associates, INC. | Binghamton | NY | — | ◐ LIKELY ACTIVE |
| IFInnovation First Manufacturing, Inc. | Greenville | TX | 20–99 | ◐ LIKELY ACTIVE |
| IMInnovations Manufacturing INC | Redding | CA | — | ◐ LIKELY ACTIVE |
| IEInnovative Engineered Solutions | Wilmington | OH | 20–99 | ◐ LIKELY ACTIVE |
| IHInnovative Healthcare Solutions, LLC | Blue Ridge | GA | — | ◐ LIKELY ACTIVE |
| IMInnovative Machining Technology, Inc. Boyertown, PA | Boyertown | PA | 20–99 | ◐ LIKELY ACTIVE |
| IMInnovative Mechanical Solutions LLC- IMECH | Houston | TX | 20–99 | ◐ LIKELY ACTIVE |
| ICInnovex Corporate | Humble | TX | 100–499 | ◐ LIKELY ACTIVE |
| IEInnovex Eldridge | Houston | TX | 20–99 | ◐ LIKELY ACTIVE |
| ILInnovex Lucerne | Houston | TX | 100–499 | ◐ LIKELY ACTIVE |
| IMInnovex Midland OH | Midland | TX | 20–99 | ◐ LIKELY ACTIVE |
| IMInnovex Midland Production | Midland | TX | 20–99 | ◐ LIKELY ACTIVE |
| IMInnovex Mineral Wells | Mineral Wells | TX | 20–99 | ◐ LIKELY ACTIVE |
| IWInnovex World Houston | Houston | TX | 20–99 | ◐ LIKELY ACTIVE |
| IEInovaciones El Yunque INC | Ceiba | PR | — | ◐ LIKELY ACTIVE |
| IDInrock Drilling Systems | Houston | TX | 20–99 | ◐ LIKELY ACTIVE |
| ICInsingerMachine Company | Philadelphia | PA | 20–99 | ◐ LIKELY ACTIVE |