usługi inżynieryjne Michał Siebert

70.22.Z - Business and other management consultancy activities

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

58.19.Z - Other publishing activities

63.99.Z - Other information service activities not elsewhere classified

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Other technical testing and analysis

74.10.Z - Specialised design activities

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

77.40.Z - Leasing of intellectual property and similar products, except copyrighted works

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