| John E Martin Co (Wichita Falls, TX)
|
| John L Lutz Welding & Fab Inc (Frenchtown, NJ)
|
| Kam thermal Equipment Ltd (Hauppauge, NY)
|
| Ken-Weld Co (Worcester, MA)
|
| Kitcor Corp (Sun Valley, CA)
|
| Kopetz Manufacturing Inc (Decatur, IL)
|
| La Bco of Palmyra Inc (Palmyra, NY)
|
| Lange's Special Machining (Harrison Townshi, MI)
|
| Lu-Sheba Contracting (Brooklyn, NY)
|
| Mangum Oil & Gas (Mangum, OK)
|
| Manhattan Welding Co (Hillside, NJ)
|
| Manning & Lewis Engineering Co (Union, NJ)
|
| Mark Millwright & Rigging (Emigsville, PA)
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| Marx Pump Svc Inc (Taylor, TX)
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| Max's Concrete Inc (Mecosta, MI)
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| Mc Starlite Co (Harbor City, CA)
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| Mesco Inc (Milford, CT)
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| Meta Tec Development (Varna, IL)
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| Metalforms Inc (Beaumont, TX)
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| Missouri Equipment Co (Saint Louis, MO)
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| Mitternight Boiler Works Inc (Satsuma, AL)
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| Modern Welding Co of Tx Inc (Rhome, TX)
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| Modern Welding of Owensboro (Owensboro, KY)
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| Morrell's Metal Finishing (Compton, CA)
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| Munroe Inc (Pittsburgh, PA)
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