Founded in 1968 by Roger Minnich in a three-bay garage in Mansfield, Ohio, Minnich Manufacturing makes concrete dowel-pin drills, paving vibrators, and vibrator-monitoring systems. The private, family-run company grew from converting paving machines to hydraulic vibrators and built its first dowel-pin drill at a contractor’s request in 1985. Today, Minnich continues that family history with around-the-clock customer service and a manufacturing facility expanded in 2011.