Piotr Durlej

62.20.B - IT consulting and IT equipment management activities

59.20.Z - Sound recording and music publishing activities

60.10.Z - Broadcasting of radio programs and distribution of sound recordings

60.39.Z - Other content distribution activities

70.20.Z - Business and management consultancy activities

73.11.Z - Advertising agency activities

73.20.Z - Market research and public opinion polling

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms

85.69.Z - Educational support activities, not classified elsewhere