Piotr Ziętara International Business

70.20.Z - Business and management consultancy activities

47.12.Z - Other non-specialized retail trade

47.40.Z - Retail sale of information and communication technology equipment

60.39.Z - Other content distribution activities

62.20.B - IT consulting and IT equipment management activities

62.90.Z - Other IT and computer-related services

63.10.D - Services related to computing infrastructure, data processing, website management (hosting), and related activities

71.11.Z - Architectural activities

77.21.Z - Rental and leasing of recreational and sports equipment

77.22.Z - Rental and leasing of other personal and household goods

78.10.Z - Employment placement and recruitment services

82.10.Z - Office administrative support activities, including related services

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