John Gefferth
Senior Mining Environmental Consultant at Barr Engineering Co.
Others working in Barr Engineering Co.
Ward Swanson
Chief Executive Officer - President at Barr Engineering Co.
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Dan Giedd
Chief Human Resources Officer at Barr Engineering Co.
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Pete Buongiorno
Owner at Barr Engineering Co.
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William Forsmark
Chief Marketing Officer at Barr Engineering Co.
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