Uncategorized Christopher Ader Joins PENTA Building Group By CREConfidential - August 27, 2012 0 992 PENTA Building Group named Christopher Ader as project engineer. He will work on the North Las Vegas Readiness project. Ader most recently served as a consultant to Marnell Companies after joining the company in 2007 as a project engineer. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related