Wiesław Błaszczyk

80.01.Z - Detective activities and personal security services

69.10.Z - Legal activities

80.09.Z - Other security activities, not elsewhere classified

82.91.Z - Activities of collection agencies and credit bureaus

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

85.59.D - Other non-school forms of education, not classified elsewhere

85.69.Z - Educational support activities, not classified elsewhere