Hards Fabrication & Welding, INC. | Seneca | PA | 20–99 | ● ACTIVE |
| HEHardy Engineering & Manufacturing, INC. | Auburn | WA | — | ● ACTIVE |
| HIHarken INC | Pewaukee | WI | 100–499 | ● ACTIVE |
Harsh International INC | Eaton | CO | 20–99 | ● ACTIVE |
Hartmann's, INC. | Abilene | TX | — | ● ACTIVE |
| HIHaskel International, LLC | Burbank | CA | 100–499 | ● ACTIVE |
Hastreiter Industries CORP. | Marshfield | WI | 20–99 | ● ACTIVE |
Hdms LLC | Gainesville | GA | — | ● ACTIVE |
Heartland Auto Electric, INC | Princeton | MN | — | ● ACTIVE |
| HFHeartland Fabrication LLC | Brownsville | PA | 100–499 | ● ACTIVE |
| HTHeckel Tool & Manufacturing CORP | Eagle | WI | — | ● ACTIVE |
Heinlein Commercial Investments, INC. | Cincinnati | OH | — | ● ACTIVE |
Henderson Machine, INC | Deerfield Beach | FL | — | ● ACTIVE |
Hercules Custom Iron, LLC | Walkersville | MD | 20–99 | ● ACTIVE |
| HFHeritage Fabrication INC | Sedalia | MO | 1–19 | ● ACTIVE |
| HTHighland Tank, LLC (Stoystown, PA) | Stoystown | PA | 100–499 | ● ACTIVE |
High Precision Grinding & Machining, INC. | El Cajon | CA | — | ● ACTIVE |
Highres Biosolutions, INC. | Beverly | MA | — | ● ACTIVE |
High Speed Cnc | Santa Clara | CA | — | ● ACTIVE |
High Tech Machine Ii CO Limited | Houston | TX | 20–99 | ● ACTIVE |
| HTHigh Temperature Superconductors, INC. | Santa Barbara | CA | — | ● ACTIVE |
Highway Machine Co., INC. | Princeton | IN | — | ● ACTIVE |
Hilltop Technology Laboratory, INC. | Irvine | CA | — | ● ACTIVE |
Hirsh Precision Products, INC | Frederick | CO | — | ● ACTIVE |
Hmdmd INC | Solana Beach | CA | — | ● ACTIVE |
Hoefner Corporation | South El Monte | CA | — | ● ACTIVE |
Hogin Machine, INC | Santa Ana | CA | — | ● ACTIVE |
Hollaender Manufacturing CO | Cincinnati | OH | 20–99 | ● 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 |
Hot Metal Fab LLC | Loomis | CA | — | ● ACTIVE |
Howell Laboratories, INC. | Gorham | ME | 1–19 | ● ACTIVE |
| HPH. P. Machine and Engineering, INC. | San Jose | CA | — | ● ACTIVE |
Hps Fabrications INC | Wyandotte | MI | — | ● ACTIVE |
H & S Tool and Engineering, INC. | Fall River | MA | 20–99 | ● ACTIVE |
Hudson Scenic Studio INC. | Yonkers | NY | — | ● ACTIVE |
Huffman Welding & Machine, INC. | Fort Madison | IA | 20–99 | ● ACTIVE |
Hughes Machine Shop, INC | Bogalusa | LA | — | ● ACTIVE |
Hughes Ventures, INC | Garland | TX | — | ● ACTIVE |
Humble Brands, INC. | Taos | NM | 20–99 | ● ACTIVE |
| HIHummel Innovations LLC | North Royalton | OH | — | ● ACTIVE |
Husky Precision, INC. | Roseville | MI | — | ● ACTIVE |
Hydrafab Northwest, INC | Spokane Valley | WA | 20–99 | ● ACTIVE |
Hydro-pac INC | Fairview | PA | 20–99 | ● ACTIVE |
Hydrotech Systems, LTD. | Cohoes | NY | — | ● ACTIVE |
| HLHy-production, LLC | Valley City | OH | 20–99 | ● ACTIVE |
| IMIcon Machine CO LLC | Irving | TX | 20–99 | ● ACTIVE |
Ideal Fabricators INC | Livonia | MI | 20–99 | ● ACTIVE |
| ITIep Technologies, LLC | Marlborough | MA | 100–499 | ● ACTIVE |
| ISImperial Systems, INC | Mercer | PA | 100–499 | ● 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 |
| IDIndustrial Door Contractors, INC. | Columbia | TN | — | ● ACTIVE |
Industrial Fabrication & Testing, INC. | Chehalis | WA | — | ● ACTIVE |
Industrial Filter Manufacturers INC | Evansville | IN | 20–99 | ● ACTIVE |
| IMIndustrial Maintenance Company, LLC | Gallatin | TN | 20–99 | ● ACTIVE |
Industrial Metal Fabrication, INC | Newton | KS | 20–99 | ● ACTIVE |
Industrial Motions Engineering, INC. | Wilmington | MA | — | ● ACTIVE |
Industrial Screen & Maintenance, INC. | Casper | WY | — | ● ACTIVE |
Industrial Tool & Die CO INC | Troy | NY | — | ● ACTIVE |
Infinity Edm, LLC | Jackson | WI | 20–99 | ● ACTIVE |
Infonet Corporation | Altoona | IA | 20–99 | ● ACTIVE |
Ingleside Machine Co., INC. | Farmington | NY | 20–99 | ● ACTIVE |
Inland Marine Industries INC | Hayward | CA | 100–499 | ● ACTIVE |
Innomed INC | Savannah | GA | — | ● ACTIVE |
Innovative Machining, INC. | Forest Lake | MN | — | ● ACTIVE |
Innovative Manufacturing and Design, LLC | Greenville | SC | 20–99 | ● ACTIVE |
| IMInnovative Metal Products, INC | Des Moines | IA | — | ● ACTIVE |
Insaco INC | Quakertown | PA | 20–99 | ● ACTIVE |
| IMIntegrated Metal Components, INC | Tualatin | OR | 20–99 | ● ACTIVE |
| IIIntellicut Incorporated | Middleton | MA | — | ● ACTIVE |
| ITIntelligent Tool CORP | Concord | NC | — | ● ACTIVE |
Intellimetal INC | Rochester | NY | — | ● ACTIVE |
Interamerica Stage, INC. | Sanford | FL | 100–499 | ● ACTIVE |
Intercontinental Engineering-manufacturing Corporation | Riverside | MO | — | ● ACTIVE |
International Computer Appliances CORP | Maple Grove | MN | — | ● ACTIVE |
Intex United INC | Richmond | TX | — | ● ACTIVE |
| IIIronwood Industries INC | Libertyville | IL | 20–99 | ● ACTIVE |
Island Tarp & Containment, LLC | Poulsbo | WA | — | ● 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 |
Jacquart Fabric Products, INC | Ironwood | MI | — | ● ACTIVE |
Jaffa Precision Engineering, INC. | Riverside | CA | — | ● ACTIVE |
Jaguar Precision Machine LLC | Albuquerque | NM | — | ● ACTIVE |
Jamison Door Company | Hagerstown | MD | — | ● ACTIVE |
Janak & Scurfield INC | Sacramento | CA | — | ● ACTIVE |
J.b. Anderson & Son, INC | Irwin | PA | — | ● ACTIVE |
Jbc Machine, INC. | Hortonville | WI | 20–99 | ● ACTIVE |
Jbm Sherman Carmel INC | Bennington | VT | — | ● ACTIVE |
| JMJd Machine CORP | Ogden | UT | 100–499 | ● ACTIVE |
Jedcor Development/fabrication, INC. | South Salt Lake | UT | — | ● ACTIVE |