QuestMark, a division of CentiMark Corporation , is the nation's largest self performing flooring contractor and the leading provider of polished concrete, epoxy, urethane, and exterior coatings for pedestrian and vehicle spaces in the industrial, commercial, and retail markets. We have been consistently doing business during the Covid-19 pandemic, providing hazard pay and ensuring that the safety of our customers and crews is our highest priority. Both family and employee owned, Centimark has …