Mark Seim

Mark Seim is an accomplished engineering and project management professional with extensive experience in overseeing large facility projects in the energy sector. Currently serving as a Manager at Williams since August 2018, Mark is responsible for managing all large onshore facility projects in the West and USGC for Williams Engineering & Construction. In addition to this role, Mark has been a Staff Project Manager and Engineering Project Director at Arkema since July 2016, where coordination of communication between senior management, business units, and project sponsors is a key responsibility. Previous positions include Manager of Projects for NGL & Petchem Facilities at Williams Midstream, Director of Process & Plant Engineering at Linde Process Plants, Director of Operations at Stellar Energy Systems, and Project Engineer/Construction Manager at Toromont Energy Systems. Mark holds a Bachelor's degree in Mechanical Engineering from Kansas State University, earned between 1991 and 1995.