Gonna agree with Trance on this one.
Richie Hawtin, Plastikmen are up there. Check out Matthew Dear, Stryke, and John Aquaviva. All Tech-masters and they know how to work the dancefloor as well and just working with that heavy-energy. If you're referring to "Techno" as a general term for electronic music, then maybe you're looking for something a little more melodic and lush, lookup 'Digital Witchcraft'
web page Tune-in to
Proton Radio for constant new music in the EDM & IDM scene.
You can check some of my own stuff over at:
web page (Roger dP btw) Mainly downtempo, and IDM type stuff.
Hope this helped a bit, doesn't seem like you got a straight answer from the majority. ;-)