Do you know of any Mississauga/Brampton area scrap buyer?

I am collecting all types of scrap.
I see there are lots of buyers in the Mississauga/Brampton area, but what are your experiences with the ones you have dealt with? Remember to give their company name pls.
Are there some better suited for certain scrap types? (ie: e-waste) ...because of better price or in the way they grade what they buy?

Please do not mention company names. Those posts will get deleted as advertising and/or reviews. If you want reviews of buyers, that is what the Buyers and Sellers section is for.