5R Enterprises
Morris, Illinois
Al Warren Oil
Hammond, Indiana
Anchor QEA
Madison, Wisconsin
Ballard Marine Construction
Washougal, Washington
Barr Engineering
Ann Arbor, Michigan
Burns & McDonnell
Duluth, Minnesota
Chicago Propeller Club
Chicago, Illinois
Donjon Shipyard
Erie, Pennsylvania
Edgewater Resources
Madison, Wisconsin
Evans Transportation Services
Delafield, Wisconsin
Fincantieri Marine Group
Wisconsin
Forvis
Erie, Pennsylvania
Foth Infrastructure and Environment
Franklin, Wisconsin
Gateway Trade Center / Port of Buffalo
Buffalo, New York
Great Lakes Maritime Academy
Traverse City, Michigan
Innovative Signal Analysis
Richardson, Texas
J.F. Brennan Company
La Crosse, Wisconsin
JD Fields & Company
Oak Brook, Illinois
Kokosing Industrial, Durocher Marine Division
Cheboygan, Michigan
KS Associates
Elyria, Ohio
Nicholson Terminals
Ecorse, Michigan
Ogdensburg Bridge & Port Authority
Ogdensburg, New York
PND Engineering
Houston, Texas
Prime Focus LLC
DePere, Wisconsin
Ramboll
Milwaukee, Wisconsin
Ryba Marine
Cheboygan, Michigan
Tata Steel
Schaumburg, Illinois
VAA Engineering
Plymouth, Minnesota
Verplank Dock Company
Ferrysburg, Michigan
Via Rail Engineering, Inc.
Maribel, Wisconsin
Warner Petroleum
Detroit, Michigan