Anthony Teasdale was, from 1991 to 1993, Adviser on European Affairs at Prima Europe, and, from 1993 to 1995, and again from 1997 to 2002, Head of the London Office of the European People's Party – European Democrats (EPP-ED) group. From 1999 to 2002, he was Secretary of the British Delegation of the EPP-ED group, and, from 2002 to 2006, Head of Policy Strategy and Legislative Planning for the EPP-ED Group in the European Parliament.