Columbus’ North American revenues shot up 50.7 percent for the year ended December 31 with a healthy contribution from the purchase of First Tech Direct in March. The Danish Dynamics reseller reported North American EBITDA of just under $3 million, a 17.2-percent rise from 2011 while North American revenue hit about $183.3 million. In its 2012 annual report, Columbus was sparse on North American numbers commenting only that “a satisfactory organic growth has been realized in North America.”