TOMASZ WISZYŃSKI "TTNet"

47.41.Z - Retail sale of computers, peripheral units and software in specialised stores

33.12.Z - Repair and maintenance of machinery

46.51.Z - Wholesale of computers, peripheral equipment and software

47.42.Z - Retail sale of telecommunications equipment in specialised stores

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

62.01.Z - Computer programming activities

62.09.Z - Other information technology and computer service activities

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

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

95.11.Z - Repair and maintenance of computers and peripheral equipment

95.12.Z - Repair and maintenance of (tele)communication equipment

95.21.Z - Repair and maintenance of consumer electronics