John Halm, based in Park Ridge, IL, US, is currently a Cost Estimator (Construction) at GSA. John Halm brings experience from previous roles at GSA PBS, Halm General and Electrical Contractors, Inc., Applied Environmental Services and ICF Kaiser Engineers. John Halm holds a 1999 - 2003 MBA - Finance in Finance 2003 @ DePaul University. John Halm has 2 emails and 1 mobile phone numbers on RocketReach.
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