Contractors Government go Results Found: 2 Button group with nested dropdown CNS Y-12 LLC (Consolidated Nuclear Se... CNS Y-12 LLC (Consolidated Nuclear Security) PO Box 2009 Oak Ridge TN 37831 (865) 574-1640 UT-Battelle/ORNL UT-Battelle/ORNL One Bethel Valley Road Oak Ridge TN 37831 (865) 241-9309