Dennis is also a member of the Supervisory Board at [[DENIC]]<ref>[https://www.denic.de/en/whats-new/press-releases/article/denic-general-assembly-changes-to-the-supervisory-board-and-the-honorary-members-of-the-executive-b/ DENIC Press Release 28.04.2016]</ref>. | Dennis is also a member of the Supervisory Board at [[DENIC]]<ref>[https://www.denic.de/en/whats-new/press-releases/article/denic-general-assembly-changes-to-the-supervisory-board-and-the-honorary-members-of-the-executive-b/ DENIC Press Release 28.04.2016]</ref>. |