| HMHightech Machining INC. | Pacoima | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| HEHillside Engineering, INC. | Danvers | MA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| HHitchdoc | Jackson | MN | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| HMHi-tek Manufacturing INC | Mason | OH | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| HIHolan, INC | Irwin | PA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| HLHollis Line Machine Co., INC. | Milford | NH | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| HRHorspool & Romine Mfg CO INC | Oakland | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| HRH & R Mfg. and Supply, INC. | Willis | TX | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| HTHubbard Tool & Die CORP. | Rome | NY | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| HMHudson Machine and Tool | Hammond | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| HMHunter Machine INC. | Victor | NY | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| HWH & W Manufacturing | Spring | TX | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| HWH W Nicholson Welding & Manufacturing INC | Apollo | PA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| HUHypertech Usa, INC. | Ventura | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| HTHytech Tool & Design CO. | Edinboro | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| IBICT Billet LLC | Wichita | KS | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| IPIllinois Pulley & Gear INC | Schaumburg | IL | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
Imperial Machine & Tool CO | Blairstown | NJ | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| ICIncoe Corporation | Auburn Hills | MI | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
Industrial Automation LLC | Rochester Hills | MI | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| IMIndustrial Machine Works, Incorporated | Waynesboro | VA | Fabricated Metal Product Manufacturing332313 | — | ◐ LIKELY ACTIVE |
| IMIndustrial Manufacturing Inc. | Albany | GA | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| IMIndustrial Marine, INC. | Jacksonville | FL | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IPIndustrial Parts Specialties, LLC | Port Allen | LA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| IWIndustrial Weldors & Machinists, Inc | Duluth | MN | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| ISInfinity Systems, INC. | Yorba Linda | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IMInnovated Machine & Tool Co., INC. | Newport News | VA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| IPInstant Precision LLC | Grass Lake | MI | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IFIntegrated Fabrication & Machine, Inc. | Greenville | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| IIIntegrity Industrial Group LLC | Waukesha | WI | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IMIntrepid Machine, INC | Brooksville | FL | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IMIn-x Machine INC | Arvada | CO | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JAJamco Aerospace, INC. | Deer Park | NY | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JAJ and K Manufacturing INC | Paramount | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JIJay Industrial Repair, INC. | Baldwin | FL | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JMJc Machine & Mfg, CORP. | Santa Ana | CA | Leather and Allied Product Manufacturing316110 | — | ◐ LIKELY ACTIVE |
| JCJemco Components & Fabrication, INC. | Kirkland | WA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JPJ&e Precision Machining, INC. | San Jose | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JLJeskey, LLC | North Haven | CT | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| JFJ. F. Burns Machine Co., INC. | Export | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| JJJ J Engineering INC | Los Alamitos | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JEJk Engineering Aerospace & Defense | Yorba Linda | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JMJNB Machinery LLC | Fowlerville | MI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| JMJohnson Machine INC | Owasso | OK | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| JCJoonsoo CORP | San Jose | CA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
J & T Investments LLC | Lees Summit | MO | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| JMJwh Machining & Fab LLC | Jackson | MS | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| KPKajan Perfection INC. | Houma | LA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| KMKerkau Manufacturing | Bay City | MI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| KMKin-tech Mfg INC | Irwin | PA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |