GRZEGORZ CZEREŚNIOWSKI

71.12.B - Engineering activities and related technical consultancy

43.21.Z - Installation of electrical systems

46.50.Z - Wholesale trade of information and communication technology devices

46.90.Z - Non-specialized wholesale trade

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

47.55.Z - Retail sale of furniture, lighting equipment, tableware, and other household articles

47.91.Z - Intermediary retail sale, non-specialized

47.92.Z - Intermediary retail sale, specialized

60.39.Z - Other content distribution activities

62.10.B - Programming activities

62.20.A - IT consulting and IT equipment management activities

62.20.B - IT consulting and IT equipment management activities

62.90.Z - Other IT and computer-related services

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

80.09.Z - Other security activities, not elsewhere classified

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

95.10.Z - Repair and maintenance of computers and telecommunications equipment

96.22.Z - Beauty care and other cosmetic services