The following companies have achieved a position on Vertical Systems Group's Mid-2013 Global Provider Ethernet Leaderboard (in rank order based on port share): BT Global Services (U.K.), Orange Business (France), Verizon (U.S.), Colt (U.K.), AT&T (U.S.), NTT (Japan) and Level 3 (U.S.). ...

The following companies have achieved a position on Vertical Systems Group's 2012 Global Provider Ethernet Leaderboard (in rank order based on port share): Orange Business, BT Global Services, Verizon, Colt, AT&T, NTT & Level 3. ...

The top Cable MSOs selling business Ethernet services in the U.S. are as follows (in rank order based on port share): Cox, Time Warner Cable, Charter, Lightpath (formerly Optimum Lightpath), and Comcast, according to Vertical Systems Group's latest research. ...