In 1993, Poroshenko, together with his father Oleksiy and colleagues from the Road Traffic Institute in Kiev, created the UkrPromInvest Ukrainian Industry and Investment Company, which specialised in confectionery (and later other agricultural processing industries) and the automotive industry.Poroshenko was director-general of the company from its founding until 1998, when in connection with his entry into parliament he handed the title over to his father, while retaining the title of honorary president.
Between 1996 and 1998, UkrPromInvest acquired control over several state-owned confectionery enterprises which were combined into the
Roshen group in 1996, creating the largest confectionery manufacturing operation in Ukraine. His business success in the confectionery industry earned him the nickname "Chocolate King".Poroshenko's business empire also includes several car and bus plants,
Leninska Kuznya shipyard, the
5 Kanal television channel,as well as other businesses.
In March 2012, Forbes placed him on the Forbes list of billionaires at 1,153rd place, with $1 billion.