Hamilton Oshawa Port Authority, Hamilton, ON
Heddle Shipyards Inc., Hamilton, ON
Herbert F. Darling Inc., Tonawanda, NY
Hercules Industries Inc., Gladstone, MI
Heritage Marine, Two Harbors, MN
Honey Harbour Barging, Honey Harbour, ON
Hotte Marine Contracting Ltd., Windsor, ON
Huffman Equipment Rental & Contracting Inc., Eastlake, OH
Huron District Contracting Ltd., Goderich, ON