3i Jacek JANIK

71.12.B - Engineering activities and related technical consultancy

37.00.Z - Sewerage and waste water treatment

42.11.Z - Works related to the construction of roads and highways

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

42.91.Z - Works related to the construction of water engineering objects

43.11.Z - Demolition and destruction of buildings

43.12.Z - Site preparation for construction

43.13.Z - Performing excavations and geological-engineering drilling

43.21.Z - Installation of electrical systems

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

43.32.Z - Installation of building carpentry

43.34.Z - Painting and glazing

43.42.Z - Performing other specialized construction works related to the construction of buildings

43.50.Z - Specialized construction works in the field of civil and water engineering

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

46.83.Z - Wholesale trade of wood, construction materials, and sanitary equipment

46.84.Z - Wholesale trade of metal products and hydraulic and heating equipment and accessories

49.41.Z - Road freight transport

52.24.C - Cargo handling at other handling points

68.12.A - Development of residential building projects

68.12.B - Development of non-residential building projects

68.12.C - Development of building projects

71.11.Z - Architectural activities

71.12.A - Engineering activities and related technical consultancy

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