Metadot is the company behind the brand Das Keyboard. They started 2005 with a keyboard without letters on the keys. It was specifically designed for nerds and geeks, you could promote your ability of typing without looking. Only a year later, a mechanical version, Das Keyboard II (DK2), was presented. In 2008 Metadot opened up to a broader potential target audience and finally put letters on their keycaps. Today, most of their keyboards are available in multiple configurations, so that you can decide whether your keyboard has letters or not. The mechanical keyboards from Metadot are loved for their focus on essentials and their build quality.
(c) Logo from Metadot