KRZYSZTOF MATYJASZCZYK

61.10.B - Activities in the field of wired, wireless, and satellite telecommunications

18.12.Z - Other printing

26.20.Z - Manufacture of computers and peripheral equipment

26.30.Z - Manufacture of (tele)communication equipment

26.40.Z - Manufacture of electronic consumer products

33.13.Z - Repair and maintenance of electronic and optical devices

33.14.Z - Repair and maintenance of electrical devices

33.20.Z - Installation of industrial machinery, equipment, and devices

42.11.Z - Works related to the construction of roads and highways

42.22.Z - Works related to the construction of telecommunications and electrical lines

43.21.Z - Installation of electrical systems

43.23.Z - Installation of insulation

43.24.Z - Installation of other building systems

46.18.Z - Activity of agents involved in wholesale trade of other specified goods

46.43.Z - Wholesale trade of electrical household goods

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

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

47.78.Z - Retail sale of other new products

47.91.Z - Intermediary retail sale, non-specialized

47.92.Z - Intermediary retail sale, specialized

58.11.Z - Publishing of books

58.12.Z - Publishing of newspapers

58.19.Z - Other publishing activities, excluding software publishing

58.21.Z - Publishing of computer games

58.29.Z - Publishing of other software

59.11.Z - Activities related to the production of films, video recordings, and television programs

59.12.Z - Post-production activities related to films, video recordings, and television programs

59.13.Z - Activities related to the distribution of films and video recordings

60.31.Z - News agency activities

60.39.Z - Other content distribution activities

61.10.A - Activities in the field of wired, wireless, and satellite telecommunications

61.20.Z - Activities related to the resale of telecommunications services and telecommunications mediation

61.90.A - Activities in other telecommunications fields

61.90.B - Activities in other telecommunications fields

62.10.A - Programming 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

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

73.11.Z - Advertising agency activities

74.12.Z - Graphic design and visual communication activities

74.20.Z - Photographic activities

77.32.Z - Rental and leasing of construction machinery and equipment

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

77.39.Z - Rental and leasing of other machinery, equipment, and tangible assets, not elsewhere classified

81.30.Z - Landscaping services

82.20.Z - Call center activities

85.52.Z - Non-school forms of artistic education

90.12.Z - Creative activities in visual arts

90.20.C - Activities related to the staging of artistic performances

90.39.Z - Other activities supporting creative activities and activities related to staging artistic performances

91.21.B - Art gallery activities

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

95.21.Z - Repair and maintenance of electronic equipment for general use