Planet Panel accepts members world wide. They send about one survey per month.
You earn lottery points (which is for prize drawings) for every survey. I have done a few surveys for them, but never win anything, but I was paid by them once ($5 Amazon gift certificate) for referring friends. So basically if you don’t mind not getting paid but just for sweepstakes, you can try this site.
Please note: due to low survey invites and reward options, I am not listing this site on my paid survey lists.