1) LABORATORIUM ANALIZ TOKSYKOLOGICZNYCH I BIOCHEMICZNYCH PIOTR POLAK; 2) DORADZTWO PRAWNE I DIAGNOSTYCZNO-LABOLATORYJNE PIOTR POLAK; 3) INSTYTUT DORADZTWA PRAWNEGO I DIAGNOSTYCZNO-LABOLATORYJNEGO PIOTR POLAK

72.11.Z - Research and experimental development on biotechnology

69.10.Z - Legal activities

70.22.Z - Business and other management consultancy activities

71.11.Z - Architectural activities

71.12.Z - Engineering activities and related technical consultancy

71.20.A - Food quality testing and analysis

71.20.B - Other technical testing and analysis

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

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

85.60.Z - Educational support activities

86.90.E - Other human health activities notelsewhere classified