Hi-Klima Marek Szczęsny

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

41.10.Z - Construction work related to the construction of residential and non-residential buildings

43.21.Z - Installation of electrical systems

43.29.Z - Specialized construction works

43.39.Z - Specialized construction works

43.91.Z - Masonry works

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

47.19.Z - Retail trade

47.71.Z - Retail sale of clothing

47.99.Z - Retail trade

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

62.03.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

63.91.Z - Portal and search engine activities

70.22.Z - Head office activities and management consultancy

74.90.Z - Other professional, scientific and technical activities, not elsewhere classified