On page 1 (Company Information), the "Company Badge" tab and the fields it contains translate to "Unternehmenskennkarte". This is a bit strange, as "Company" is translated as "Mandant" throughout Business Central. Consequently, "Mandantenkennzeichen" would be the most logical translation.

I would not use "Kennkarte", but "Kennzeichen", since the word "Kennkarte" has not been used in the last 60 years and has a negative connotation (https://de.wikipedia.org/wiki/Kennkarte).