| Mitos Technology (Phoenixville, PA)
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| Montour Industrial Supply (Coraopolis, PA)
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| Moody Corp (Zelienople, PA)
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| Morningstar Corp (Washington Cross, PA)
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| Morse Fluid Technologies (Scarsdale, NY)
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| Motion Industries Inc (Piqua, OH)
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| Mo-Trim (Cambridge, OH)
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| Mueller Co Ltd (Decatur, IL)
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| N B N Hydraulics Co (Eastlake, OH)
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| Nailon Corp (Peoria, IL)
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| National Plumbing & Htg Supply (Beaver Falls, PA)
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| Need Oil Corp (Patterson, NY)
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| Neff Engineering of Wi Inc (Kaukauna, WI)
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| New Con Co (Hibbing, MN)
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| New Haven Mansfield (Mansfield, OH)
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| New York City Boiler Svc Inc (Ozone Park, NY)
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| Newburgh Winnelson Inc (Newburgh, NY)
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| Newman Green Inc (Addison, IL)
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| Nil-Cor (Alliance, OH)
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| Noland Co (Bowling Green, KY)
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| North American Mfg Co (Carmel, IN)
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| Northeast Energy Corp (West Babylon, NY)
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| Northeastern Supply (Hanover, PA)
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| Northrup Supply Corp (Auburn, NY)
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| Northrup Supply Corp (Ilion, NY)
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