SIERRA CONSULTING MAREK STASZEWSKI

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

26.11.Z - Manufacture of electronic components

26.12.Z - Manufacture of electronic printed circuits

26.20.Z - Manufacture of computers and peripheral equipment

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

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

46.18.Z - Activity of agents involved in wholesale trade of other specified goods

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

46.90.Z - Non-specialized wholesale trade

47.91.Z - Intermediary retail sale, non-specialized

47.99.Z - Retail trade

49.39.Z - Other land passenger transport, not elsewhere classified

49.41.Z - Road freight transport

56.10.A - Food service activities

56.10.B - Food service activities

56.21.Z - Occasional preparation and delivery of food for external clients (occasional catering)

56.30.Z - Beverage serving activities

58.11.Z - Publishing of books

58.19.Z - Other publishing activities, excluding software publishing

58.21.Z - Publishing of computer games

58.29.Z - Publishing of other software

59.11.Z - Activities related to the production of films, video recordings, and television programs

59.12.Z - Post-production activities related to films, video recordings, and television programs

59.13.Z - Activities related to the distribution of films and video recordings

59.20.Z - Sound recording and music publishing activities

60.10.Z - Broadcasting of radio programs and distribution of sound recordings

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

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

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

68.31.Z - Real estate brokerage

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

73.11.Z - Advertising agency activities

73.12.A - Advertising through mass media

73.12.B - Advertising through mass media

73.12.C - Advertising through mass media

73.12.D - Advertising through mass media

74.10.Z - Specialized design activities

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

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

81.10.Z - Auxiliary activities related to maintaining buildings