GRUPA HEJ SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

63.91.Z - Portal and search engine activities

58.11.Z - Publishing of books

58.19.Z - Other publishing activities, excluding software publishing

60.39.Z - Other content distribution activities

73.11.Z - Advertising agency activities

82.30.Z - Activities related to organizing fairs, exhibitions, and congresses

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

85.69.Z - Educational support activities, not classified elsewhere

86.93.Z - Psychology and psychotherapy activities, excluding medical activities