Piotr Steć

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

43.21.Z - Installation of electrical systems

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

43.31.Z - Plastering

43.32.Z - Installation of building carpentry

43.33.Z - Flooring, wallpapering, and cladding of walls

43.34.Z - Painting and glazing

43.39.Z - Specialized construction works

47.91.Z - Intermediary retail sale, non-specialized

53.10.Z - Postal activities subject to the universal service obligation (public operator)

53.20.Z - Other postal and courier activities

56.10.B - Food service activities

63.12.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

66.19.Z - Other activities supporting financial services, excluding insurance and pension funds

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

68.31.Z - Real estate brokerage

73.11.Z - Advertising agency activities

73.12.C - Advertising through mass media

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

77.12.Z - Rental and leasing of trucks

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

81.10.Z - Auxiliary activities related to maintaining buildings

81.21.Z - General cleaning of buildings

81.22.Z - Other cleaning of buildings and industrial premises

81.29.Z - Services related to maintaining buildings and landscaping

85.59.A - Foreign language education

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

96.01.Z - Individual service activities