[disposedtrolley]

IBM's last corporate typeface was a slightly modified version of Helvetica, which wasn't particularly distinctive and didn't see much adoption internally.

Plex was introduced a few weeks ago internally with considerable uptake. Intranet articles and corporate comms look much nicer now :P

IBM also produced the Carbon Design System which influences most of their product offerings (most notably on IBM Cloud/Bluemix) http://carbondesignsystem.com/