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Rudolph Libbe Group Sep 09, 2025
Mark Prenzlin has been appointed as Assistant Safety Director for Rudolph Libbe, Inc., President Jeffrey Schaller said.
RLI offers a complete range of project delivery methods including general contracting, Design-Build and construction management, as part of The Rudolph Libbe Group of Companies.
Prenzlin will assume the RLI Safety and Health Director’s role upon the retirement of the current safety and health director at the end of 2025. Prenzlin brings more than 25 years of construction safety and health expertise to RLI, Schaller said.
“Mark is a veteran construction health and safety expert who stays current with the latest advances in keeping workers, customers and the general public safe,” Schaller said. “We will leverage his knowledge and experience to add to our highly successful health and safety efforts.”
Prenzlin’s credentials include the Associate of Risk Management and Construction Health and Safety Technician certifications. He holds a bachelor’s degree in business administration and a master’s degree in safety management from Marshall University. He also taught a course in Construction Health and Safety at Bowling Green State University for many years.
Mark, his wife, Ronelle, and their daughter reside near Fremont, Ohio.
The AGC report recommends that prime contractors take the lead in instilling a safety culture among their...