| Cornell Pump Co (Hastings, NE)
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| Dixon Pumps (Billings, MT)
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| Emergency Power Systems (Appleton, WI)
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| Fellegy Cabinet Shop Inc (Stillwater, MN)
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| Fill Rite Inc (Fox Lake, IL)
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| Flowserve Corp (Hastings, NE)
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| Flowserve Corp (West Chicago, IL)
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| Furmanite America Inc (Lombard, IL)
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| Geo-Loop Inc (Aurelia, IA)
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| Gibco Inc (Billings, MT)
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| Grand island Pump Co (Grand Island, NE)
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| Griffin Dewatering N Central (Omaha, NE)
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| Hutcheson Engineering Products (Omaha, NE)
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| Hydro Aire (Chicago, IL)
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| Hydro Inc (Chicago, IL)
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| Hy-Pac Hydraulics Inc (Racine, WI)
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| Hypro Corp (Saint Paul, MN)
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| Idex Inc (Columbia Falls, MT)
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| J & S Wastewater Systems Inc (Urbana, IL)
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| Jonas Martin Well Drilling Co (Oregon, IL)
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| Ken's Water Systems Inc (Beecher, IL)
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| Lmi-Liquid Metronics Inc (Madison, WI)
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| Mandus Group Ltd (Davenport, IA)
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| March Manufacturing Inc (Glenview, IL)
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| Mc Carthy Well Co (Shakopee, MN)
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