Those are the biggest breeders, but there are dozens of private breeders like myself, but I am in Kamloops BC.
Be advised that it is very, very unwise to buy any animals under 6 months old online.
There are always threads 'Is this boy a girl?' and then it's a huge cost and hassle to get the animal replaced so if you can, buy a young adult or one you can see pics of before they ship it to confirm it's a male.
If you can, buy locally. Put an ad on your local kijiji.ca and craigslist.ca there are LOTS of private breeders out in Ontario.
I don't know how close Ottawa is to Stratford,Drew from Chameleon Nation is located there he is probably the largest breeder in Canada.There are others all you have to do is search for their web pages online.Any breeder worth their salt will be able to accuarately sex a panther chameleon at 3 months of age.I have both purchased and sold them at that age without any issues.