I finally figured out that it's the Compliance Officer at my brokerage that I should be emailing to get the "Zenith Capital Corp." (Calgary) vs "Zenith Capital Corporation" (Vancouver) confusion fixed.

Anyhow, they are taking a serious look at it.  It appears to be an error in the info provided by one or more third party data vendors.  I'm optimistic that it will get fixed -- at least at my brokerage.  With some luck, perhaps the data vendor correction will spread to the other sites that have the two companies confused.