EU nationals do not require a visa to enter the Federal Republic of Germany
Generally speaking, all other foreigners require a visa for stays in Germany. A visa is not required for visits of up to 90 days in an 180‑day period for nationals of those countries for which the European Community has abolished the visa requirement.
You will find an overview on visa requirements here:
Information for Britons and their family members is provided on the Homepage of the German Missions in the United Kingdom:
For those who require a visa, please note that the conference organizers and committee have no control over the visa application process, nor the decision of the visa adjudicator in the embassy or consulate. The conference cannot be responsible for actual visa issuances. As the process length varies for individuals, you are strongly advised to start your application as soon as you can. Should your application be denied, we cannot change the decision of the Federal Foreign Office, nor will we engage in discussion or correspondence with the Federal Foreign Office or the Embassy on behalf of the applicant.