RETN
RETN Poland Sp. Z.o.o lett 02-255 Warsaw, PolandUl. Krakowiakow 48.
+44 20 7517 6400
United Telecom
United Telecom Zrt.
H-1037 Budapest, Zay utca 3. IV. em. 405.
+36 20 555 3055
Microsoft
Microsoft
H-1031 Budapest, Graphisoft park 3., Hungary
n.a.