Gregory was Field Service Manager for Schlumberger. Gregory Hallahan joined Prosep in 2014. Gregory served as Director of Proposals and Product Development at Prosep.
Gregory Hallahan is currently Chief Executive Officer at Prosep - View - Prosep org chart
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Gregory Hallahan graduated from University of Pennsylvania and from Cleveland State University.
They have also studied at University of Pennsylvania :
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They have also studied at Cleveland State University :
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