Sounds like you've looked into some already, but here's a site that may give you some you missed.
Select North Bay for the city, and change Step 3, service type, to whatever you want, or ALL...
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www.canadianisp.ca/cgi-b ··· rch&p=ONI would then suggest you go to the company's own websites; they cannot get ALL their options into the charts at canadianisp.ca, and some of that info could be out of date.