Błażej Marciniak CERTUS CONSULTING

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

09.10.Z - Service activities incidental to petroleum and natural gas extraction

09.90.Z - Service activities incidental to other mining and quarrying

18.12.Z - Other printing

18.13.Z - Service activities related to printing preparation

18.20.Z - Reproduction of recorded media

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

43.21.Z - Installation of electrical systems

46.43.Z - Wholesale trade of electrical household goods

46.52.Z - Wholesale trade

46.66.Z - Wholesale trade

46.90.Z - Non-specialized wholesale trade

47.41.Z - Retail trade

47.43.Z - Retail trade

47.54.Z - Retail sale of electrical household appliances

47.63.Z - Retail sale of sports equipment

47.78.Z - Retail sale of other new products

47.79.Z - Retail sale of used products

47.81.Z - Retail sale of motor vehicles

47.91.Z - Intermediary retail sale, non-specialized

47.99.Z - Retail trade

49.41.Z - Road freight transport

52.10.B - Warehousing and storage of other goods

52.21.Z - Support activities for land transport

52.22.A - Support activities for maritime transport

52.22.B - Support activities for inland water transport

52.23.Z - Support activities for air transport

58.12.Z - Publishing of newspapers

58.21.Z - Publishing of computer games

58.29.Z - Publishing of other software

59.14.Z - Activities related to the projection of films

59.20.Z - Sound recording and music publishing activities

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

61.20.Z - Activities related to the resale of telecommunications services and telecommunications mediation

61.30.Z - Telecommunications

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

62.03.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

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

68.20.Z - Rental and management of own or leased real estate

68.32.Z - Other real estate activities on behalf of third parties

70.22.Z - Head office activities and management consultancy

71.12.Z - Engineering activities and related technical consultancy

72.19.Z - Scientific research and development activities

73.11.Z - Advertising agency activities

73.12.D - Advertising through mass media

73.20.Z - Market research and public opinion polling

74.10.Z - Specialized design activities

74.20.Z - Photographic activities

74.30.Z - Translation and interpretation activities

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

79.11.A - Travel agency activities

81.29.Z - Services related to maintaining buildings and landscaping

82.11.Z - Office administrative support activities and other business support services

82.20.Z - Call center activities

82.92.Z - Packaging activities

82.99.Z - Other business support activities, not elsewhere classified

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

85.60.Z - Educational support activities

95.11.Z - Repair and maintenance of computers, personal and household goods, and motor vehicles, including motorcycles

95.12.Z - Repair and maintenance of computers, personal and household goods, and motor vehicles, including motorcycles

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