Tomasz Pietrucha Group

71.20.B - Other technical testing and analysis

43.21.Z - Electrical installation

43.22.Z - Plumbing, heat and air-conditioning installation

43.29.Z - Other construction installation

43.39.Z - Other building completion and finishing

43.99.Z - Other specialised construction activities not elsewhere classified

47.52.Z - Retail sale of hardware, paints and glass in specialised stores

47.91.Z - Retail sale via mail order houses or via Internet

47.99.Z - Other retail sale not in stores, stalls or markets

68.31.Z - Real estate agencies

71.12.Z - Engineering activities and related technical consultancy

72.19.Z - Other research and experimental development on natural sciences and engineering

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

81.30.Z - Landscape service activities

85.59.B - Other out-of-school forms of education, not elsewhere classified