Competent authorities In Warsaw Below you will find a full list of offices under which our Virtual Office in Warsaw falls. First and Third Tax Office Warsaw-Śródmieście 02-013 Warszawa, ul. Williama Heerleina Lindleya 14 XII Economic Department of the National Court Register ul. Czerniakowska 100, 00 - 454 Warszawa Contact us Conversation and trust are the basis of successful cooperation If you have any concerns or questions about Virtual Office, we are here to help. Contact form tel: 784-477-512 wibiurowarszawa@gmail.com