Natural or legal persons having either their residence or their principal place of business in a contracting state to the EPC can undertake all procedural steps before the EPO themselves and are not obliged to appoint a representative. Other applicants are, however, required to be represented by a professional representative (Article 134(1) EPC) or a legal practitioner (Article 134(8) EPC) (except when filing an application or paying fees). An association of professional representatives can also be authorised according to Rule 152(11) EPC.
Even if you are not obliged to appoint a professional representative, it may still be helpful to consult one. To make it easier to find what you need, the EPO maintains an up-to-date (updated twice a month) database of professional representatives. All you have to do is enter a search term or terms in one or more of the search fields and click the "Go" button (see below).
This will generate a list of professional representatives who match your query. Click on a name to find details of the representative's full name, address, e-mail and website (where available). Click on the city or the country to view a list of all the professional representatives in that location.
Forms relating to the list of professional representatives before the EPO and to associations of professional representatives can be downloaded from the links below.