I don't see either Zenith Capital in the Federal Incorporation database.  So I'm assuming they are both provincially incorporated. 

https://www.ic.gc.ca/app/scr/cc/CorporationsCanada/fdrlCrpSrch.html?locale=en_CA

Can Two Businesses Have the Same Name in Canada?

"....When you incorporate your business provincially, that business name is reserved for your use in that province. Note, though, that someone in another province (or elsewhere) could still register and use your business name if they wished...."

https://www.thebalancesmb.com/business-name-protection-2948599

A Federal incorporation gives more protection.  Trademarking a name would be even better.