Crook company Firmenauskunft P.U.R. GmbH. Never say "Yes" when it calls and immediately hang up, otherwiese on the next day you will receive contracts in horrible amounts.
They do not call themselves Firmenauskunft P.U.R. GmbH, they usually say, they are from Google, they try to talk to you just to achieve a certain length of conversation and number of "Yes" from you.
[Edited at 2021-04-04 03:16 GMT]
... but I suggest you would post it in one of the German threads, because that company acts in Germany only. If possible, please share their phone number or at least important parts of it, so that one will be warned when they call you with their caller ID visible.