Mateusz Kowalski Classical Guitarist

90.20.C - Activities related to the staging of artistic performances

47.69.A - Retail sale of musical instruments and sheet music

47.69.C - Retail sale of other cultural and recreational products, not elsewhere classified

47.92.Z - Intermediary retail sale, specialized

59.20.Z - Sound recording and music publishing activities

85.52.Z - Non-school forms of artistic education

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

85.59.D - Other non-school forms of education, not classified elsewhere

90.39.Z - Other activities supporting creative activities and activities related to staging artistic performances