JULIA ŻARCZYŃSKA BIURO NAUKOWO-TECHNICZNE SIGMA

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

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

47.91.Z - Intermediary retail sale, non-specialized

58.29.Z - Publishing of other software

62.01.Z - Activities related to programming, IT consulting, and related activities

63.11.Z - Services related to computing infrastructure, data processing, website management (hosting), and other information services

70.22.Z - Head office activities and management consultancy

71.12.Z - Engineering activities and related technical consultancy

71.20.A - Food quality testing and analysis

71.20.B - Inspection and issuing opinions on the technical condition of chimneys and ventilation ducts

73.11.Z - Advertising agency activities

73.12.C - Advertising through mass media

74.10.Z - Specialized design activities

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

77.33.Z - Rental and leasing of office machinery and equipment, including computers

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

85.60.Z - Educational support activities