In 1875, he started his own company to produce playing cards and colored paper, close to the railway in Turnhout, with ten employees.

When one of the banks, where Biermans had lent money to fund his company, went bankrupt Fr.

Van Dooren and Georges Dupret provided him capital to continue his business and saved his company, AT.

In order to start the new factory, 40 families moved from Turnhout to France and settled near Lille.

In 1970 Biermans, together with Brepols and Van Genechten, founded Carta Mundi as a joint venture.