Leszek Szatkowski

28.29.Z - Manufacture of other general-purpose machinery not elsewhere classified

25.61.Z - Production of cutlery and knives

25.62.Z - Production of locks and hinges

33.11.Z - Repair and maintenance of metal products

43.34.Z - Painting and glazing

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

47.91.Z - Intermediary retail sale, non-specialized

71.11.Z - Architectural activities

71.12.Z - Engineering activities and related technical consultancy

73.11.Z - Advertising agency activities

73.20.Z - Market research and public opinion polling

77.39.Z - Rental and leasing of other machinery, equipment, and tangible assets, not elsewhere classified

77.40.Z - Leasing of intellectual property and similar products, excluding works protected by copyright

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