President & CEO
Mr. Leistner has worked at Koenig Iron Works, Inc. since 1972, and has held the position of President since August 1979. He is a graduate of C.W. Post College where he earned a B.S. degree in science. Mr. Leistner has over 40 years of experience in all phases of construction, including an extensive background in the estimation, design, fabrication, and erection of structural and miscellaneous steel.
Mr. Leistner is an owner and managing member of several real estate development companies, and also serves on the Board of Directors of Nathan’s Famous Inc., a publicly held food service, real estate, and franchising company.
Mr. Guthertz has been employed as Chief Financial Officer for Koenig Iron Works, Inc. since September 1991. He graduated from the State University of New York at Binghamton in 1977 with a B.S. degree in science, and is a New York State Certified Public Accountant and member of the New York State Society of CPA’s since 1979. Mr. Guthertz has over 35 years of financial and accounting experience. He has an extensive background in construction accounting procedures and policies, tax preparation and compliance, job costing, personnel management, union contracts, banking, computer operations, insurance, and risk management.