Dunder Mifflin Binghamton was a branch of Dunder Mifflin stationed in Binghamton, New York. It was closed down while Robert California was drunk in the episode "Turf War ". Andy Bernard described it as "a fine branch." Due to being drunk, Robert never figured out how to divide up the clients, leaving the Scranton branch and the Syracuse branch to fight over the clients.

It is unknown if it was reopened when David Wallace bought the company.

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