Piotr Siemiński

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

43.99.Z - Other specialised construction activities not elsewhere classified

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

81.21.Z - General cleaning of buildings

81.22.Z - Specialised building and industrial cleaning activities

81.29.Z - Other cleaning activities

81.30.Z - Landscape service activities

82.11.Z - Office administrative service activities

82.99.Z - Other business support service activities not elsewhere classified

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