Grzegorz Kaszyński Consulting

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

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

47.91.Z - Retail sale via mail order houses or via Internet

47.99.Z - Other retail sale not in stores, stalls or markets

62.01.Z - Computer programming activities

62.02.Z - Computer consultancy activities

70.22.Z - Business and other management consultancy activities

71.12.Z - Engineering activities and related technical consultancy

71.20.B - Other technical testing and analysis

73.11.Z - Advertising agencies activities