MAREK KOŁODZIEJCZYK MKSERVICE

26.12.Z - Manufacture of electronic printed circuits

26.20.Z - Manufacture of computers and peripheral equipment

26.30.Z - Manufacture of (tele)communication equipment

26.40.Z - Manufacture of electronic consumer products

26.51.Z - Manufacture of measuring, controlling, and navigation instruments

26.52.Z - Manufacture of watches and clocks

27.90.Z - Manufacture of other electrical equipment

28.23.Z - Manufacture of office machinery and equipment, excluding computers and peripheral equipment

28.99.Z - Manufacture of other special-purpose machinery not elsewhere classified

31.00.Z - Manufacture of furniture

32.20.Z - Manufacture of musical instruments

33.12.Z - Repair and maintenance of machinery

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

33.19.Z - Repair and maintenance of other equipment and installations

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

42.22.Z - Works related to the construction of telecommunications and electrical lines

58.29.Z - Publishing of other software

61.10.B - Activities in the field of wired, wireless, and satellite telecommunications

61.90.B - Activities in other telecommunications fields

62.10.B - Programming activities

62.20.B - IT consulting and IT equipment management activities

62.90.Z - Other IT and computer-related services

63.92.Z - Other information-related services

71.11.Z - Architectural activities

71.12.B - Engineering activities and related technical consultancy

71.20.C - Other technical testing and analysis

72.10.Z - Scientific research and development in natural and technical sciences

74.11.Z - Industrial design and fashion design activities

74.12.Z - Graphic design and visual communication activities

74.14.Z - Other specialized design activities

74.91.Z - Patent attorney and marketing activities

74.99.Z - All other professional, scientific and technical activities, not elsewhere classified

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

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

77.40.B - 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

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

91.30.Z - Conservation and restoration activities and other supporting activities for cultural heritage

95.10.Z - Repair and maintenance of computers and telecommunications equipment

95.21.Z - Repair and maintenance of electronic equipment for general use

95.22.Z - Repair and maintenance of household appliances and equipment for household and gardening use