ROBERT OLEŃSKI

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

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

43.31.Z - Plastering

43.91.Z - Masonry works

56.30.Z - Beverage serving activities

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

70.22.Z - Head office activities and management consultancy

73.20.Z - Market research and public opinion polling

82.30.Z - Activities related to organizing fairs, exhibitions, and congresses