KRZYSZTOF KOWALCZYK OUTSOURCE

70.20.Z - Business and management consultancy activities

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

43.21.Z - Installation of electrical systems

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

43.24.Z - Installation of other building systems

47.79.C - Retail sale of other used products

47.91.Z - Intermediary retail sale, non-specialized

47.92.Z - Intermediary retail sale, specialized

52.26.Z - Other support activities for transport

52.32.Z - Passenger transport brokerage

55.40.Z - Accommodation services intermediary

55.90.Z - Other accommodation services

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

61.90.A - Activities in other telecommunications fields

61.90.B - Activities in other telecommunications fields

62.20.B - IT consulting and IT equipment management activities

63.92.Z - Other information-related services

71.12.B - Engineering activities and related technical consultancy

74.14.Z - Other specialized design activities

74.20.Z - Photographic activities

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

78.10.Z - Employment placement and recruitment services

79.12.Z - Tour operator activities

79.90.Z - Other reservation services and related activities (tourism sector)

82.30.Z - Activities related to organizing fairs, exhibitions, and congresses

82.40.Z - Intermediary activities in business support services, not elsewhere classified

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

93.29.B - Other entertainment and recreational activities, not elsewhere classified