Marcin Cieślak System Business Consulting

62.09.Z - Other information technology and computer service activities

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

58.11.Z - Book publishing

58.13.Z - Publishing of newspapers

58.14.Z - Publishing of journals and periodicals

58.19.Z - Other publishing activities

58.29.Z - Other software publishing

59.11.Z - Motion picture, video and television programme production activities

59.12.Z - Motion picture, video and television programme post-production activities

59.13.Z - Motion picture, video and television programme distribution activities

59.14.Z - Motion picture projection activities

59.20.Z - Sound recording and music publishing activities

60.20.Z - Public and licence television programmes broadcasting

61.10.Z - Wired telecommunications activities

61.90.Z - Other telecommunications activities

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy activities

62.03.Z - Computer facilities management activities

63.11.Z - Data processing, hosting and related activities

63.12.Z - Web portals

70.21.Z - Public relations and communication activities

70.22.Z - Business and other management consultancy activities

72.20.Z - Research and experimental development on social sciences and humanities

85.60.Z - Educational support activities