M E Z Mariusz Grabysa

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

26.30.Z - Manufacture of (tele)communication equipment

43.21.Z - Installation of electrical systems

47.41.Z - Retail trade

47.42.Z - Retail trade

47.91.Z - Intermediary retail sale, non-specialized

58.29.Z - Publishing of other software

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

61.90.Z - Activities in other telecommunications fields

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

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

70.22.Z - Head office activities and management consultancy

74.90.Z - Other professional, scientific and technical activities, not elsewhere classified

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms

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