tj - komputer Marcin Wróbel

61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities

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

43.21.Z - Electrical installation

47.42.Z - Retail sale of telecommunications equipment in specialised stores

47.91.Z - Retail sale via mail order houses or via Internet

61.10.Z - Wired telecommunications activities

61.30.Z - Satellite telecommunications activities

61.90.Z - Other telecommunications activities

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service activities

63.11.Z - Data processing, hosting and related activities

63.12.Z - Web portals

80.20.Z - Security systems service activities