GRZEGORZ GRABOWSKI

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

70.20.Z - Business and management consultancy activities

73.30.B - Other public relations and communications activities

74.91.Z - Patent attorney and marketing activities

74.99.Z - All other professional, scientific and technical activities, not elsewhere classified

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

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

93.29.B - Other entertainment and recreational activities, not elsewhere classified