atern source Arkadiusz Sztern

63.12.Z - Web portals

43.32.Z - Joinery installation

43.34.Z - Painting and glazing

43.99.Z - Other specialised construction activities not elsewhere classified

46.19.Z - Agents involved in the sale of a variety of goods

63.11.Z - Data processing, hosting and related activities

63.99.Z - Other information service activities not elsewhere classified

72.20.Z - Research and experimental development on social sciences and humanities

73.11.Z - Advertising agencies activities

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

81.22.Z - Specialised building and industrial cleaning activities

82.11.Z - Office administrative service activities