JULIUSZ KOSTRZEWSKI

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

43.21.Z - Installation of electrical systems

46.43.Z - Wholesale trade of electrical household goods

47.41.Z - Retail trade

47.42.Z - Retail trade

47.43.Z - Retail trade

47.54.Z - Retail sale of electrical household appliances

47.59.Z - Retail trade

47.78.Z - Retail sale of other new products

47.91.Z - Intermediary retail sale, non-specialized

47.99.Z - Retail trade

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

62.01.Z - Activities related to programming, IT consulting, and related activities

62.02.Z - Activities related to programming, IT consulting, and related activities

62.03.Z - Activities related to programming, IT consulting, and related activities

62.09.Z - Activities related to programming, IT consulting, and related activities

63.11.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

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

71.12.Z - Engineering activities and related technical consultancy

77.29.Z - Rental and leasing

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

80.20.Z - Detective and security activities

81.22.Z - Other cleaning of buildings and industrial premises

82.11.Z - Office administrative support activities and other business support services

82.92.Z - Packaging activities

95.11.Z - Repair and maintenance of computers, personal and household goods, and motor vehicles, including motorcycles

95.12.Z - Repair and maintenance of computers, personal and household goods, and motor vehicles, including motorcycles

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

45.32.Z