Ivor Mack List of directors and agents named Ivor Mack. Found 2 results. IVOR MACK Registered Address: 7905 PLUM CREEK DR GAITHERSBURG MD 20879 Appointed in one company. Go To Profile IVOR MACK Registered Address: 7905 PLUM CREEK ROAD GAITHERSBURG MD 20879 Appointed in one company. Go To Profile