You did not list your country, budget, or anything, so do a web seach of your area providers, what you can get will vary greatly by where you are.
What exactly do you do to "need" such a huge internet speed? Nothing except a specially set up point to point connection will transfer at such speeds over a WAN (universities, research labs, etc..).
i'd talk to your isp (or any other isp in your area), but i imagine you're going to have a hard time finding someone able to give you such high speeds.