VISA & Invitation letter


VISA may be requested online or at the local/national Portuguese embassy or consulate.
For a complete list of countries whose citizens are required to obtain a Schengen visa in order to enter please click on list of countries.

Additional information available at the website of Schengen VISA information

Invitation Letter

A customised invitation letter for visa purposes is only available for delegates with a confirmed registration that has been paid in full. Please use the online registration form (available in December 2020) to request an invitation letter or write an email to

The letter is intended to help delegates obtain a visa but does not imply the ESB or organiser will provide financial support.

We urge all delegates to keep in mind that a visa application may take some time to be processed and should, therefore, be initiated early enough to ensure it is accepted before the Conference begins.

In case of a visa rejection, the organiser will refund the full registration fee only upon receipt of the official refusal document from the Embassy.

Important Dates

Start Online Registration
1 December 2020

Abstract Submission
Start: 1 December 2020

15 March 2021, 23:55:00 CET

ESB 2021
5–9 September 2021
Porto, Portugal





K.I.T. Group GmbH Dresden
Bautzner Str. 117-119
01099 Dresden, Germany