JAN KIERSZNIOWSKI OPTYK KIERSZNIOWSKI

70.22.Z - Business and other management consultancy activities

25.62.Z - Mechanical working of metal elements

33.13.Z - Repair and maintenance of electronic and optical equipment

62.09.Z - Other information technology and computer service activities

63.11.Z - Data processing, hosting and related activities

77.21.Z - Rental and leasing of recreational and sports goods

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

86.90.E - Other human health activities notelsewhere classified