 From 2005 to 2006, he was the Country Manager and General Manager at DHL Express Singapore.Teo was recognised as a "Young Global Leader" by the World Economic Forum in 2007 for his contributions to the business and community services sectors.Teo was first elected to Parliament at the 2006 general election as a member of the PAP's six-member team in the Pasir Ris-Punggol Group Representation Constituency (GRC).