Habco Tool & Development CO INC | Mentor | OH | 20–99 | ● ACTIVE |
| HMHafendorfer Machine INC | Louisville | KY | 20–99 | ● ACTIVE |
| HFHaiss Fabripart LLC | Alliance | OH | — | ● ACTIVE |
Halfab, INC | Livermore | CA | — | ● ACTIVE |
| HIHall Industries INC | Ellwood City | PA | 20–99 | ● ACTIVE |
Halo Metal Prep INC | Cleveland | OH | — | ● ACTIVE |
Hamill Manufacturing Company | Trafford | PA | 100–499 | ● ACTIVE |
Hand Industries INC | Warsaw | IN | — | ● ACTIVE |
Hansen Engineering CO. | Harbor City | CA | — | ● ACTIVE |
Hanset Stainless INC | Portland | OR | — | ● ACTIVE |
| HAHantal Alabama Corporation | Cusseta | AL | 20–99 | ● ACTIVE |
Han-tek INC | Honeoye Falls | NY | 20–99 | ● ACTIVE |
Hanwha Cimarron LLC | Huntsville | AL | — | ● ACTIVE |
| HSHarbor Steel INC | New Castle | PA | — | ● ACTIVE |
Hards Fabrication & Welding, INC. | Seneca | PA | 20–99 | ● ACTIVE |
| HEHardy Engineering & Manufacturing, INC. | Auburn | WA | — | ● ACTIVE |
| HIHarken INC | Pewaukee | WI | 100–499 | ● ACTIVE |
Harper Industries, INC | Harper | KS | 100–499 | ● ACTIVE |
Harris Welding and Machine Company | Ashland | OH | — | ● ACTIVE |
Harsh International INC | Eaton | CO | 20–99 | ● ACTIVE |
Hartmann's, INC. | Abilene | TX | — | ● ACTIVE |
Harvey Vogel Manufacturing CO | Saint Paul | MN | — | ● ACTIVE |
Hastreiter Industries CORP. | Marshfield | WI | 20–99 | ● ACTIVE |
Haversat Holdings LLC | Naugatuck | CT | — | ● ACTIVE |
Hawkeye Steel Products, INC | Houghton | IA | — | ● ACTIVE |
Hayden CORP | West Springfield | MA | — | ● ACTIVE |
H.b. Fuller Company | Troy | MI | — | ● ACTIVE |
H. C. Davis Sons' Manufacturing Co., INC | Bonner Springs | KS | — | ● ACTIVE |
| HFHeartland Fabrication LLC | Brownsville | PA | 100–499 | ● ACTIVE |
| HSHeat Sensor Technologie LLC | Lebanon | OH | 20–99 | ● ACTIVE |
Heavy Materials LLC | Saint Thomas | VI | — | ● ACTIVE |
| HTHeckel Tool & Manufacturing CORP | Eagle | WI | — | ● ACTIVE |
Helander Metal Spinning CO | Lombard | IL | — | ● ACTIVE |
| HTHelicopter Technology CORP | Los Angeles | CA | — | ● ACTIVE |
Helix Linear Technologies, INC. | Beachwood | OH | 20–99 | ● ACTIVE |
Henderson Machine, INC | Deerfield Beach | FL | — | ● ACTIVE |
| HMHenry's Metal Polishing, INC | S El Monte | CA | — | ● ACTIVE |
Henry Technologies, INC. | Chatham | IL | — | ● ACTIVE |
Hercules Custom Iron, LLC | Walkersville | MD | 20–99 | ● ACTIVE |
| HFHeritage Fabrication INC | Sedalia | MO | 1–19 | ● ACTIVE |
Herker Industries INC | Menomonee Falls | WI | — | ● ACTIVE |
| HSHibshman Screw Machine Products, INC. | Union | MI | 20–99 | ● ACTIVE |
| HDHighlands Diversified Services, INC. | London | KY | 100–499 | ● ACTIVE |
| HTHighland Tank, LLC (Stoystown, PA) | Stoystown | PA | 100–499 | ● ACTIVE |
High Precision Grinding & Machining, INC. | El Cajon | CA | — | ● 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 |
Hillco Technologies, INC | Nezperce | ID | — | ● ACTIVE |
Hilltop Technology Laboratory, INC. | Irvine | CA | — | ● ACTIVE |
Hilman, INC. | Marlboro | NJ | 20–99 | ● ACTIVE |
Hines Industries, INC. | Ann Arbor | MI | — | ● ACTIVE |
Hi Performance Machine & Metals, INC | Lakeside | CA | — | ● ACTIVE |
| HIHirsh Industries INC | Dover | DE | 100–499 | ● ACTIVE |
Hirsh Precision Products, INC | Frederick | CO | — | ● ACTIVE |
| HCHi-shear Corporation | Torrance | CA | — | ● ACTIVE |
Hi-tech Metals, INC. | Bellingham | MA | — | ● ACTIVE |
Hitemco LLC | Old Bethpage | NY | 100–499 | ● ACTIVE |
| HTHk Technologies INC | Salem | OH | 1–19 | ● ACTIVE |
Hme INC | Topeka | KS | — | ● ACTIVE |
Hoefner Corporation | South El Monte | CA | — | ● ACTIVE |
Hogin Machine, INC | Santa Ana | CA | — | ● ACTIVE |
Hogue, INC. | Paso Robles | CA | — | ● ACTIVE |
Hollaender Manufacturing CO | Cincinnati | OH | 20–99 | ● ACTIVE |
| HPHomeyer Precision Manufacturing CO. | Marthasville | MO | 20–99 | ● ACTIVE |
Honeycomb Products Services, LLC | Indianapolis | IN | — | ● ACTIVE |
Honeycutt Manufacturing INC | Mukilteo | WA | — | ● ACTIVE |
Honsa Ergonomic Technologies LLC | Milan | IL | — | ● ACTIVE |
Hoppe Technologies, INC | Chicopee | MA | 20–99 | ● ACTIVE |
Horizons Incorporated | Cleveland | OH | — | ● ACTIVE |
Horizon Systems Machining INC | Kenosha | WI | 20–99 | ● ACTIVE |
Horizon Tech Industries, INC. | Fort Worth | TX | 20–99 | ● ACTIVE |
Horn Machine Tools, INC. | Madera | CA | — | ● ACTIVE |
Horschel Brothers Precision LLC | Springville | NY | 100–499 | ● ACTIVE |
Hose Master, LLC | Euclid | OH | — | ● ACTIVE |
Hosokawa Micron International INC | Summit | NJ | — | ● ACTIVE |
Hot Metal Fab LLC | Loomis | CA | — | ● ACTIVE |
Hougen Manufacturing, INC | Swartz Creek | MI | — | ● 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 |
Hps Fabrications INC | Wyandotte | MI | — | ● ACTIVE |
H & S Tool and Engineering, INC. | Fall River | MA | 20–99 | ● ACTIVE |
Hta Los Angeles LLC | Santa Fe Springs | CA | — | ● ACTIVE |
Hts Coatings LLC | Madison | IL | — | ● ACTIVE |
Htt, INC. | Sheboygan | WI | — | ● ACTIVE |
| HIHuck International, INC | Carson | CA | 100–499 | ● ACTIVE |
Hudson Buyer, LLC | Ormond Beach | FL | 100–499 | ● ACTIVE |
Huffman Welding & Machine, INC. | Fort Madison | IA | 20–99 | ● ACTIVE |
Hughes Machine Shop, INC | Bogalusa | LA | — | ● ACTIVE |
Huron Tool & Engineering CO | Bad Axe | MI | — | ● ACTIVE |
Hurst Construction and Fabrication, LLC | Ponca City | OK | 20–99 | ● ACTIVE |
Husky Precision, INC. | Roseville | MI | — | ● ACTIVE |
Hydac Technology CORP | Bethlehem | PA | — | ● ACTIVE |
Hydrafab Northwest, INC | Spokane Valley | WA | 20–99 | ● ACTIVE |
Hydra-lock CORP | Mount Clemens | MI | — | ● ACTIVE |
Hydromat, INC | Maryland Heights | MO | — | ● ACTIVE |
Hydro-pac INC | Fairview | PA | 20–99 | ● ACTIVE |
Hydrotech Systems, LTD. | Cohoes | NY | — | ● ACTIVE |