What is NIP?
At a exhibition a polish left me their information, as follows, “PPHU ZAKŁAD MURARSKO-KAMIENIARSKI DĘBIŃSKI SŁAWOMIR，NIP 577-141-78-06”but I do not know Polish, could somebody tell me what NIP is, and how to find their company's website or Email？

Question

Answer

As Mrs. Joanna wrote is Tax Identification Number. In the past, every person had to use it, nowadays only firms and institutions has to have it.

Answer

You can find them easily in the google browser. It seems they don't have a website.
The link to information and address:
http://pphu-zaklad-murarsko-kamieniarski-debinski-slawomir.opiniafirmy.pl/

NIP it is Tax Identification Number

Pozdrowienia
Joanna