Found it. It's Iristel Inc., originating out of Oakville, ON. I would imagine they want you to sign up for something. They also own some iPhone apps, which is how they got my home phone number, I suppose.
http://www.iristel.ca/
They started off by saying it was a grocery survey but about 5 or 6 questions in it turned into a sales pitch for a grocer who claims to be local, natural grain fed, etc. I was actually kind of interested but out of the blue the caller sunddenly said that I didn;t sound interested and that she would put me on their Do No Call list (which I should already be on!) and then she hung up when I was asking for the name of the company.