| HCHi-shear Corporation | Torrance | CA | — | ● ACTIVE |
Hoefner Corporation | South El Monte | CA | — | ● ACTIVE |
Hogin Machine, INC | Santa Ana | CA | — | ● ACTIVE |
| HPHomeyer Precision Manufacturing CO. | Marthasville | MO | 20–99 | ● ACTIVE |
Honeycutt Manufacturing INC | Mukilteo | WA | — | ● ACTIVE |
Hoppe Technologies, INC | Chicopee | MA | 20–99 | ● ACTIVE |
Horizon Systems Machining INC | Kenosha | WI | 20–99 | ● ACTIVE |
Horizon Tech Industries, INC. | Fort Worth | TX | 20–99 | ● ACTIVE |
Horschel Brothers Precision LLC | Springville | NY | 100–499 | ● ACTIVE |
Howell Laboratories, INC. | Gorham | ME | 1–19 | ● ACTIVE |
| HGHowmet Global Fastening Systems INC | Fullerton | CA | 500+ | ● ACTIVE |
| HPH. P. Machine and Engineering, INC. | San Jose | CA | — | ● ACTIVE |
H & S Tool and Engineering, INC. | Fall River | MA | 20–99 | ● ACTIVE |
| HIHuck International, INC | Carson | CA | 100–499 | ● ACTIVE |
Huffman Welding & Machine, INC. | Fort Madison | IA | 20–99 | ● ACTIVE |
Hughes Machine Shop, INC | Bogalusa | LA | — | ● ACTIVE |
Husky Precision, INC. | Roseville | MI | — | ● ACTIVE |
| HLHy-production, LLC | Valley City | OH | 20–99 | ● ACTIVE |
| IMIcon Machine CO LLC | Irving | TX | 20–99 | ● ACTIVE |
I.m.t. Precision, INC. | Hayward | CA | — | ● ACTIVE |
Independence Precision Machining, LLC | Roseville | CA | — | ● ACTIVE |
Independence Tooling Solutions LLC | Troy | MI | — | ● ACTIVE |
| IAIndustrial Alloys INC | Indian Trail | NC | 20–99 | ● ACTIVE |
Industrial Automation INC | Seattle | WA | — | ● ACTIVE |
| IMIndustrial Maintenance Company, LLC | Gallatin | TN | 20–99 | ● ACTIVE |
Industrial Motions Engineering, INC. | Wilmington | MA | — | ● ACTIVE |
Industrial Screen & Maintenance, INC. | Casper | WY | — | ● ACTIVE |
Industrial Service and Installation, INC. | Emigsville | PA | — | ● ACTIVE |
Industrial Tool & Die CO INC | Troy | NY | — | ● ACTIVE |
Infinity Edm, LLC | Jackson | WI | 20–99 | ● ACTIVE |
Ingleside Machine Co., INC. | Farmington | NY | 20–99 | ● ACTIVE |
Innovative Machining, INC. | Forest Lake | MN | — | ● ACTIVE |
Innovative Manufacturing and Design, LLC | Greenville | SC | 20–99 | ● ACTIVE |
Insaco INC | Quakertown | PA | 20–99 | ● ACTIVE |
| IIIntellicut Incorporated | Middleton | MA | — | ● ACTIVE |
| ITIntelligent Tool CORP | Concord | NC | — | ● ACTIVE |
Intercontinental Engineering-manufacturing Corporation | Riverside | MO | — | ● ACTIVE |
Inter-power CORP | Almont | MI | — | ● ACTIVE |
Ipsen, INC | Cherry Valley | IL | — | ● ACTIVE |
Ital-tech Machined Products, LLC | Groveland | MA | — | ● ACTIVE |
Jacksonville Machine, INC | Jacksonville | IL | 20–99 | ● ACTIVE |
Jaco Engineering | Anaheim | CA | — | ● ACTIVE |
J A-co Machine Works, LLC | Scotts Valley | CA | — | ● ACTIVE |
Jaffa Precision Engineering, INC. | Riverside | CA | — | ● ACTIVE |
Jaguar Precision Machine LLC | Albuquerque | NM | — | ● ACTIVE |
J.b. Anderson & Son, INC | Irwin | PA | — | ● ACTIVE |
Jbc Machine, INC. | Hortonville | WI | 20–99 | ● ACTIVE |
| JMJd Machine CORP | Ogden | UT | 100–499 | ● ACTIVE |
Jeglinski Group INC | Meadville | PA | — | ● ACTIVE |
Jenkins Machine INC | Bethlehem | PA | 20–99 | ● ACTIVE |
J&e Precision Tool, LLC | Southampton | MA | — | ● ACTIVE |
Jerl Machine INC | Perrysburg | OH | 20–99 | ● ACTIVE |
Jet Helseth Manufacturing, INC. | Deland | FL | — | ● ACTIVE |
Jet Machined Products, LLC | East Bridgewater | MA | — | ● ACTIVE |
J'evac Machine, INC. | Magnolia | AR | — | ● ACTIVE |
| JLJh-precision LLC | Farmington | NH | — | ● ACTIVE |
| JJJ & J Machine, INC. | Elk River | MN | 100–499 | ● ACTIVE |
| JHJ.l. Haley Enterprises, INC. | Rancho Cordova | CA | 20–99 | ● ACTIVE |
| JLJ & L Precision Machine CO INC | Bethlehem | PA | 20–99 | ● ACTIVE |
Jmt INC. | Norwalk | CA | — | ● ACTIVE |
Jmt Machine Company | Huntingdon Valley | PA | — | ● ACTIVE |
| JNJ & N Metal Products, LLC | Brazil | IN | — | ● ACTIVE |
| JMJoels Machine Shop INC | El Monte | CA | — | ● ACTIVE |
John Bouchard & Sons CO. | Nashville | TN | — | ● ACTIVE |
| JCJohn Crane, INC | Morton Grove | IL | — | ● ACTIVE |
| JJJohn J. Steuby Company | Hazelwood | MO | 20–99 | ● ACTIVE |
John R. Bromiley Company INC. | Chalfont | PA | — | ● ACTIVE |
Johnson & Hilliard INC | Kingsport | TN | — | ● ACTIVE |
| JMJohnson Manufacturing, INC. | Huntington Beach | CA | — | ● ACTIVE |
Jordan Machine Company, INC. | Birmingham | AL | — | ● ACTIVE |
Jr Machining LLC | Rohnert Park | CA | — | ● ACTIVE |
Jr Metal Works LLC | Kewaunee | WI | 20–99 | ● ACTIVE |
J & R Tool INC | Loogootee | IN | — | ● ACTIVE |
| JEJsb Enterprises, INC | Palmetto | FL | — | ● ACTIVE |
| JSJ. Stadler Machine, INC | Oshkosh | WI | 20–99 | ● ACTIVE |
J. T. D. Stamping CO INC | West Babylon | NY | — | ● ACTIVE |
Just in Time Machine CORP | Middleton | WI | — | ● ACTIVE |
Jx Advanced Metals Usa, INC. | Chandler | AZ | 100–499 | ● ACTIVE |
Kalco Machine & Manufacturing Company | Wichita Falls | TX | 20–99 | ● ACTIVE |
| KTKame Tool CO LLC | Chicopee | MA | — | ● ACTIVE |
Kaskaskia Tool and Machine, INC | New Athens | IL | — | ● ACTIVE |
Kaydek Machining, INC. | San Jose | CA | — | ● ACTIVE |
Kcsp Machine, LLC | Kansas City | MO | — | ● ACTIVE |
Kd Precision Machining INC. | Corona | CA | — | ● ACTIVE |
Kenlee Precision Corporation | Baltimore | MD | 20–99 | ● ACTIVE |
Kenona Industries LLC | Grand Rapids | MI | 100–499 | ● ACTIVE |
Kentucky Machine & Tool CO | Louisville | KY | — | ● ACTIVE |
| KCKenwell Corporation | Fulton | NY | 20–99 | ● ACTIVE |
K & E Plastics, INC. | Bennington | VT | — | ● ACTIVE |
Keselowski Advanced Manufacturing LLC | Statesville | NC | — | ● ACTIVE |
| KIKetchie-houston, INC | Concord | NC | 20–99 | ● ACTIVE |
Keystone Precision & Engineering, LLC | Pepperell | MA | — | ● ACTIVE |
Kirby Precision Machine LLC | Pearland | TX | — | ● ACTIVE |
Kirsh Manufacturing INC | Tucson | AZ | — | ● ACTIVE |
Kiski Precision Industries, LLC | Leechburg | PA | 20–99 | ● ACTIVE |
Kiswel, INC. | Florence | KY | — | ● ACTIVE |
Kk Industries CORP | Tempe | AZ | — | ● ACTIVE |
| KPKksp Precision Machining LLC | Glendale Heights | IL | 20–99 | ● ACTIVE |
Klh Industries, INC. | Germantown | WI | — | ● ACTIVE |
Knighten Machine and Service INC | Odessa | TX | — | ● ACTIVE |