Rivington Biscuits, which makes Pink Panther wafers, suffered a “sustained deterioration” in its financial situation since the EU referendum.
Wigan voted overwhelmingly in favour of Leave (63.9% to 36.1%).
The company will lose 99 of its 123 staff but will “fulfil orders into the New Year”.
A spokeswoman for administrator FRP Advisory said such businesses had “experienced particularly challenging trading conditions” and been “left with no viable alternative other than to seek the protection of administration”.
She added: “The problems were compounded by the sharp decline in the value of the pound against the euro.”
Not everyone was distraught at the news.
It has rallied somewhat recently as inflation increases but is still far below pre-referendum levels.
As well as business, it has also had an effect on British holidaymakers.
Research by Travelzoo suggests the average vacation next year could be at least 10% more expensive with some operators predicting an increase as high as 20%.