All Duluth Business University support phone numbers are listed below, including support phone number(s), support phone number(s), support phone number(s), etc. You can also get Duluth Business University support via email, social networks, help center, or directly check all the customer service contacts of Duluth Business University.
| Support phone number | +1 218 722 4000 |
| Support phone number | +1 800 777 8406 |