Ernest Sadowski

62.10.B - Programming activities

58.11.Z - Publishing of books

58.29.Z - Publishing of other software

60.39.Z - Other content distribution activities

62.10.A - 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

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

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

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

72.10.Z - Scientific research and development in natural and technical sciences

73.11.Z - Advertising agency activities

74.12.Z - Graphic design and visual communication activities

74.14.Z - Other specialized design activities

74.91.Z - Patent attorney and marketing activities

77.33.Z - Rental and leasing of office machinery and equipment, including computers

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