Where are the headquarters? by Christine Burgmer | Oct 20, 2017 | Allgemein | 0 comments The English word for ‘Hauptsitz’ is ‘headquarters‘ or ‘head office’. Believe me, the word ‘headquarter’ does not exist! Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of followup comments via e-mail. You can also subscribe without commenting.