Please help us finding a better answer than the official statistics, go to Volkers site and add your input.
Statistics that seem to contradict each other make me curious. So let’s put an end to the discussion how many of the worlds largest corporations use Notes or Exchange.
Go to this wiki: http://dominoorexchange.pbwiki.com/, state your name and mail address and use the invite key „that is the question“.
Now you can look at the current list and add your own knowledge. We should be able to complete this list in less than a day.