K & K ELEKTRONIK KRZYSZTOF KŁOSEK

26.20.Z - Manufacture of computers and peripheral equipment

26.12.Z - Manufacture of electronic printed circuits

26.30.Z - Manufacture of (tele)communication equipment

26.51.Z - Manufacture of measuring, controlling, and navigation instruments

27.12.Z - Manufacture of electrical distribution and control apparatus

27.90.Z - Manufacture of other electrical equipment

33.13.Z - Repair and maintenance of electronic and optical devices

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

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

46.50.Z - Wholesale trade of information and communication technology devices

46.64.Z - Wholesale trade of other machines and devices

47.12.Z - Other non-specialized retail trade

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

58.29.Z - Publishing of other software

62.10.B - Programming activities

62.20.B - IT consulting and IT equipment management activities

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

71.20.C - Other technical testing and analysis

72.10.Z - Scientific research and development in natural and technical sciences

77.21.Z - Rental and leasing of recreational and sports equipment

77.32.Z - Rental and leasing of construction machinery and equipment

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

80.09.Z - Other security activities, not elsewhere classified

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

85.59.D - Other non-school forms of education, not classified elsewhere

85.69.Z - Educational support activities, not classified elsewhere

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

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