PS SYSTEM Piotr Szklennik

62.10.B - Programming activities

60.39.Z - Other content distribution activities

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

63.91.Z - Portal and search engine activities

63.92.Z - Other information-related services

68.20.Z - Rental and management of own or leased real estate

73.11.Z - Advertising agency activities

73.12.Z - Advertising through mass media

74.12.Z - Graphic design and visual communication activities

74.14.Z - Other specialized design activities

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

77.40.A - Leasing of intellectual property and similar products, excluding works protected by copyright

77.40.B - Leasing of intellectual property and similar products, excluding works protected by copyright

85.51.Z - Non-school forms of sports education and recreational and sports activities

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

86.96.Z - Traditional, complementary, and alternative medicine activities

86.99.D - Other healthcare services

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

95.29.Z - Repair and maintenance of personal and household goods, not elsewhere classified