YouExpert spółka cywilna K. Bat, D. Wrona

63.11.Z - Data processing, hosting and related activities

72.20.Z - Research and experimental development on social sciences and humanities

73.11.Z - Advertising agencies activities

73.20.Z - Market research and public opinion polling

74.90.Z - Other professional, scientific and technical activities not elsewhere classified

85.59.B - Other out-of-school forms of education, not elsewhere classified