ANDRZEJ OLSZEWSKI TELECOM CONSULTING

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

62.02.Z - Computer consultancy activities

62.09.Z - Other information technology and computer service activities

63.11.Z - Data processing, hosting and related activities

64.99.Z - Other financial service activities, except insurance and pension funding not elsewhere classified

68.10.Z - Buying and selling of own real estate

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

68.31.Z - Real estate agencies

70.22.Z - Business and other management consultancy activities

71.20.B - Other technical testing and analysis

72.19.Z - Other research and experimental development on natural sciences and engineering

73.12.C - Intermediation in the sale of the place on advertising aims in electronic media (Internet)

73.20.Z - Market research and public opinion polling

77.11.Z - Rental and leasing of cars and light motor vehicles