Theresa Kern has been President and sole shareholder of MA Rebar Services, Inc. since 1981, one of the area's largest woman-owned subcontracting firms specializing in all facets of reinforcing steel placement for the commercial, industrial, heavy and high-rise construction markets. Kern has supervised her company's participation on some of Chicago's largest construction projects including the McCormick Place Expansion, Millennium Park, Dan Ryan Reconstruction, and the Illinois Tollway Expansion. Kern currently serves on the Board of Women Construction Owners and Executives and American Subcontractors Association. She was also the first female to hold the position of President of the Associated Steel Erectors, Management Trustee of the Iron Workers Local #1 Health & Welfare Fund, a fund with more than 2,000 participants and assets in excess of $30 million, and Management Representative for the Collective Bargaining Agreement Negotiating Committee with the Structural Ironworkers Local #1. She is also a member of ISTHA Policy Committee and the IDOT industry Policy Committee.