IT sounds good Piotr Dankowski

62.20.B - IT consulting and IT equipment management activities

33.12.Z - Repair and maintenance of machinery

33.14.Z - Repair and maintenance of electrical devices

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

43.21.Z - Installation of electrical systems

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

47.54.Z - Retail sale of electrical household appliances

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

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

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

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

82.30.Z - Activities related to organizing fairs, exhibitions, and congresses

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

93.29.B - Other entertainment and recreational activities, not elsewhere classified

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

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