GIS Coder Grzegorz Olejarz

62.01.Z - Computer programming activities

58.29.Z - Other software publishing

62.02.Z - Computer consultancy activities

62.03.Z - Computer facilities management activities

62.09.Z - Other information technology and computer service activities

63.11.Z - Data processing, hosting and related activities

63.12.Z - Web portals

70.21.Z - Public relations and communication activities

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Other technical testing and analysis

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

85.59.B - Other out-of-school forms of education, not elsewhere classified