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Hello James, Having a ccTLD definitely provides some ranking benefit in the target country. If the .ca domain is doing well for them I don't think I would consolidate it. Contrary to the other response, it is perfectly fine to have a separate ccTLD/domain for other countries. However you might want to look into geotargeting each domain in Webmaster Tools (setting the .com version to US geotargeting may take care of the 2nd place brand search issue). Of course this is just my opinion based on my own experiences. I will leave the question open for awhile so you can get more input from others.