GRUPA TELEKOMUNIKACYJNA SYSTEL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

26.11.Z - Manufacture of electronic components

26.20.Z - Manufacture of computers and peripheral equipment

26.30.Z - Manufacture of (tele)communication equipment

26.40.Z - Manufacture of electronic consumer products

27.12.Z - Manufacture of electrical distribution and control apparatus

27.31.Z - Manufacture of optical fiber cables

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

35.11.Z - Generation of electricity from non-renewable sources

35.12.Z - Generation of electricity from renewable sources

35.13.Z - Transmission of electricity

35.14.Z - Distribution of electricity

38.12.Z - Collection of hazardous waste

38.22.Z - Energy recovery

38.31.Z - Waste incineration without energy recovery

42.21.Z - Works related to the construction of transmission pipelines and distribution networks

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

42.99.Z - Works related to the construction of other civil engineering and water engineering objects, not classified elsewhere

43.13.Z - Performing excavations and geological-engineering drilling

43.21.Z - Installation of electrical systems

43.29.Z - Specialized construction works

43.99.Z - Other specialized construction works, not classified elsewhere

46.51.Z - Wholesale trade

46.52.Z - Wholesale trade

47.41.Z - Retail trade

47.42.Z - Retail trade

49.41.Z - Road freight transport

58.29.Z - Publishing of other software

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

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

61.30.Z - 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

68.10.Z - Real estate activities on own account and development of building projects

68.20.Z - Rental and management of own or leased real estate

68.32.Z - Other real estate activities on behalf of third parties

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Inspection and issuing opinions on the technical condition of chimneys and ventilation ducts

72.19.Z - Scientific research and development activities

73.12.A - Advertising through mass media

73.12.B - Advertising through mass media

73.12.C - Advertising through mass media

73.12.D - Advertising through mass media

77.11.Z - Rental and leasing of passenger cars and light motor vehicles

77.29.Z - Rental and leasing

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

77.40.Z - Leasing of intellectual property and similar products, excluding works protected by copyright

78.20.Z - Temporary employment agencies and other services related to employee leasing

78.30.Z - Employment activities

80.20.Z - Detective and security activities

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

85.60.Z - Educational support activities

86.21.Z - General medical practice

86.22.Z - Specialist medical practice

45.11.Z

45.20.Z