Expert System Group KRZYSZTOF JESZKE

43.21.Z - Installation of electrical systems

02.20.Z - Logging

02.30.Z - Collection of wild products from forests, excluding timber

33.20.Z - Installation of industrial machinery, equipment, and devices

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

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

43.29.Z - Specialized construction works

43.39.Z - Specialized construction works

43.91.Z - Masonry works

43.99.Z - Other specialized construction works, not classified elsewhere

46.19.Z - Activity of agents involved in wholesale trade of non-specialized goods

47.74.Z - Retail sale of medical and orthopedic products

47.99.Z - Retail trade

66.19.Z - Other activities supporting financial services, excluding insurance and pension funds

66.29.Z - Activities supporting insurance and pension funds, not elsewhere classified

68.10.Z - Real estate activities on own account and development of building projects

68.31.Z - Real estate brokerage

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

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms

85.60.Z - Educational support activities

86.90.A - Healthcare

86.90.E - Healthcare