Wintersun aren't up to the rest of that lineup you mentioned.
If you need the last two tracks of the Sieges Even record uploaded I can give them to you. It's a shame to not listen to 'Straggler from Atlantis' as it is probably the most epic and emotional track on the record. Yes, epic, emotional technothrash. Worth it.
Cynic are widely celebrated for 'Focus', and I like it alright too. Perhaps you'd do well to check out their demos too.
Demilich are godly.
Atheist, especially 'Unquestionable Presence' rip.
Gorguts, be sure to withstand the weirdness of 'Obscura', it's worth it.