Johnson Contracting CO INC | East Moline | IL | 20–99 | ● ACTIVE |
Johnson & Hilliard INC | Kingsport | TN | — | ● ACTIVE |
Jones Metal, INC. | Mankato | MN | 20–99 | ● ACTIVE |
| JCJ.r. Custom Metal Products, LLC | Wichita | KS | 100–499 | ● ACTIVE |
Jr Metal Works LLC | Kewaunee | WI | 20–99 | ● ACTIVE |
Kaddas Enterprises INC | Salt Lake City | UT | — | ● ACTIVE |
Kaman Composites - Vermont, INC. | Bennington | VT | — | ● ACTIVE |
Kansas City Structural Steel, INC | Kansas City | MO | — | ● ACTIVE |
Kaso Plastics, INC | Vancouver | WA | 20–99 | ● ACTIVE |
| KIKat Industries INC | Oklahoma City | OK | 20–99 | ● ACTIVE |
Kayden Manufacturing INC | Paterson | NJ | — | ● ACTIVE |
| KSKb Sheetmetal Fabrication, INC. | Fountain Valley | CA | — | ● ACTIVE |
Kemco Industries, LLC | Sanford | FL | — | ● ACTIVE |
K & E Plastics, INC. | Bennington | VT | — | ● ACTIVE |
| KCKer Custom Molders INC | Birdsboro | PA | — | ● ACTIVE |
Keystone Machine & Fab, INC | Grafton | OH | — | ● ACTIVE |
| KMKings Mountain International, INC. | Kings Mountain | NC | 20–99 | ● ACTIVE |
| KIKingspan Insulated Panels INC. | Deland | FL | 100–499 | ● ACTIVE |
King Steel, INC. | Lawrenceville | GA | — | ● ACTIVE |
Kinross Fab & Machine INC | Kincheloe | MI | — | ● ACTIVE |
Kituwah Manufacturing LLC | Wylliesburg | VA | 20–99 | ● ACTIVE |
Kleeberg Sheet Metal, INC | Ludlow | MA | — | ● ACTIVE |
Klune Industries, INC. | Spanish Fork | UT | — | ● ACTIVE |
Knight Boat Docks, INC. | Deer Park | WA | 1–19 | ● ACTIVE |
Konrady Plastics, INC. | Portage | IN | 20–99 | ● ACTIVE |
Koroseal Interior Products LLC | Medina | OH | 20–99 | ● ACTIVE |
Kriewall Enterprises INC | Romeo | MI | — | ● ACTIVE |
Kryton Engineered Metals, INC | Cedar Falls | IA | — | ● ACTIVE |
K.s. of West Virginia CO. LTD. | Ravenswood | WV | — | ● ACTIVE |
Lab Crafters, INC. | Ronkonkoma | NY | 100–499 | ● ACTIVE |
La Follette Machine & Tool Company, INC. | La Follette | TN | — | ● ACTIVE |
Lake Air Products, LLC | Minneapolis | MN | — | ● ACTIVE |
Lakeshore Cutting Solutions, INC. | Zeeland | MI | — | ● ACTIVE |
Landing Products, INC | Woodland | CA | — | ● ACTIVE |
Lane CO | Minneapolis | MN | — | ● ACTIVE |
| LILanzen INC | Mancelona | MI | 20–99 | ● ACTIVE |
Lasasco INC | Boise | ID | — | ● ACTIVE |
Laser Craft Technologies, INC. | Gainesville | GA | 100–499 | ● ACTIVE |
Laser Cutting CO | Harrison Township | MI | — | ● ACTIVE |
Laserform LLC | De Pere | WI | — | ● ACTIVE |
Laser North, INC | Baraga | MI | 20–99 | ● ACTIVE |
| LCL C Metals INC | Austell | GA | — | ● ACTIVE |
Ldi Industries, INC. | Manitowoc | WI | — | ● ACTIVE |
Ldj Manufacturing, INC. | Pella | IA | — | ● ACTIVE |
Legacy Building Solutions, LLC | Saint Augusta | MN | — | ● ACTIVE |
Lehvoss North America INC. | Pawcatuck | CT | 20–99 | ● ACTIVE |
Lenco Industries, INC. | Pittsfield | MA | — | ● ACTIVE |
Leonard Aluminum Utility Buildings, LLC | Mount Airy | NC | 100–499 | ● ACTIVE |
Letourneau Plastics, INC. | Oconto | WI | 20–99 | ● ACTIVE |
| LSLiberty Steel Fabrication INC | Fyffe | AL | 20–99 | ● ACTIVE |
| LPLights' Prosthetic Eyes, INC. | Peoria | IL | — | ● ACTIVE |
Lindsey Manufacturing CO | Azusa | CA | — | ● ACTIVE |
Linita Design & Mfg. CORP | Lackawanna | NY | 20–99 | ● ACTIVE |
Loc Industries INC | Warren | MI | — | ● ACTIVE |
Lockheed Martin Corporation | Pinellas Park | FL | — | ● ACTIVE |
Lodolce Machine Co, INC | Saugerties | NY | — | ● ACTIVE |
| LMLomont Molding Incorporated | Mount Pleasant | IA | 100–499 | ● ACTIVE |
Lyall Turbosonics, INC. | Lake Forest | CA | — | ● ACTIVE |
Mac Cal CO | San Jose | CA | — | ● ACTIVE |
Macias Sheet Metal | Los Angeles | CA | — | ● ACTIVE |
Magic Metals, INC. | Union Gap | WA | — | ● ACTIVE |
Mannon Metal Works LLC | Lebanon | MO | — | ● ACTIVE |
| MTMapp Technologies, L.l.c. | Joplin | MO | 100–499 | ● ACTIVE |
| MBMarks Brothers INC | Boring | OR | — | ● ACTIVE |
Marlon INC | Boise | ID | — | ● ACTIVE |
Mass Precision, INC. | San Jose | CA | — | ● ACTIVE |
Master Metal Products Company | San Jose | CA | — | ● ACTIVE |
Matrix Plastic Products INC | Wood Dale | IL | 100–499 | ● ACTIVE |
Maverick Aerospace LLC | City of Industry | CA | — | ● ACTIVE |
Maxsteel Fabrication, LLC | Paris | TN | 20–99 | ● ACTIVE |
| MCMbi Construction Services INC | Yakima | WA | — | ● ACTIVE |
Mcalpin Industries INC. | Rochester | NY | — | ● ACTIVE |
Mcclarin Plastics, LLC | Hanover | PA | — | ● ACTIVE |
Mcdonald Air & Sheet Metal INC. | Orlando | FL | 20–99 | ● ACTIVE |
Mcgill Airflow LLC | Fountain Inn | SC | 20–99 | ● ACTIVE |
Mct INC | Albuquerque | NM | — | ● ACTIVE |
Melco Steel INC | Azusa | CA | — | ● ACTIVE |
Mercury Aircraft INC | Hammondsport | NY | 100–499 | ● ACTIVE |
Merit3d, LLC | Price | UT | — | ● ACTIVE |
Merlin Mold & Manufacturing INC | Canastota | NY | — | ● ACTIVE |
Meta Fab, INC | Hillsboro | OR | — | ● ACTIVE |
Metalcrafters, INC. | Methuen | MA | 20–99 | ● ACTIVE |
| MOMetalcraft of Mayville INC | Mayville | WI | 100–499 | ● ACTIVE |
| MFMetal Fab South INC | Kenner | LA | — | ● ACTIVE |
Metallion Industries, INC. | Estacada | OR | — | ● ACTIVE |
Metal Roofing Systems INC | Stanley | NC | — | ● ACTIVE |
Metal Solutions Design & Fabrication LLC | Dayton | KY | — | ● ACTIVE |
| MIMetamora Industries, LLC | Metamora | IL | 20–99 | ● ACTIVE |
Met International Trading Company, INC. | Houston | TX | — | ● ACTIVE |
| MSMetro Steel & Pipe Supply, INC. | Tavares | FL | 20–99 | ● ACTIVE |
Meva Formwork Systems INC | Springfield | OH | — | ● ACTIVE |
| MPMicro-dimensional Products INC | Norristown | PA | — | ● ACTIVE |
| MPMicron Products INC | Fitchburg | MA | 20–99 | ● ACTIVE |
Mid-continent Engineering, LLC | Minneapolis | MN | — | ● ACTIVE |
Midgard INC | Green Lane | PA | — | ● ACTIVE |
Midwest Industrial Metal Fabrication, INC. | Huntington | IN | — | ● ACTIVE |
| MPMidwest Precision Molding, INC | Lake Geneva | WI | 20–99 | ● ACTIVE |
Mikron Manufacturing, INC. | Colorado Springs | CO | — | ● ACTIVE |
| MEMikros Engineering, INC | Brooklyn Park | MN | 100–499 | ● ACTIVE |
Mil-bar Plastics, INC. | Corona | CA | — | ● ACTIVE |