Import/Export Services go Results Found: 3 Button group with nested dropdown U.S. Bank - AMFA AMFA U.S. Bank - AMFA 130 W Superior Street Duluth MN 55802 (218) 723-2816 Northland Small Business Development ... AMFA Northland Small Business Development Center 202 W Superior St Suite 800 Duluth MN 55802 (218) 740-7307 Duluth Seaway Port Authority AMFA Duluth Seaway Port Authority 802 Garfield Ave Duluth MN 55802 (218) 727-8525