Jennifer Reau named controller for GEM Inc.

Mark Prenzlin named Assistant Safety Director Rudolph Libbe Inc.

Mark Prenzlin has been appointed as Assistant Safety Director for Rudolph Libbe, Inc., President Jeffrey Schaller said.

Chris Passeri named Preconstruction Manager for The Rudolph Libbe Group

Chris Passeri has been named Preconstruction Manager for The Rudolph Libbe Group of Companies’ Southeast Michigan office.

Rudolph Libbe Group Tops Crain’s Annual NE Ohio Contractor List