Paweł Żelazo Hacking&Cracking

62.01.Z - Computer programming activities

33.20.Z - Installation of industrial machinery and equipment and outfit

43.21.Z - Electrical installation

43.22.Z - Plumbing, heat and air-conditioning installation

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

61.10.Z - Wired telecommunications activities

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

61.30.Z - Satellite telecommunications activities

61.90.Z - Other telecommunications 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

63.91.Z - News agency activities

63.99.Z - Other information service activities not elsewhere classified

80.20.Z - Security systems service activities

80.30.Z - Investigation activities