62.09.Z - Other information technology and computer service activities
63.12.Z - Web portals
63.99.Z - Other information service activities not elsewhere classified
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
JANUSZ SIERDZIŃSKI was established on 2022-01-27 and is currently located at UL. FILIPINY PŁASKOWICKIEJ 442, PL-02-778, WARSZAWA. The main activity of the company is data processing and hosting services. Other activities carried out by the company include software publishing services, software services, various information services, various professional activities, wholesale brokerage services. As per the latest entry in the Central Register and Information on Economic Activity, the current management board of the company comprises 1 individual(s).