Necrophagist to be mentioned just because still relevant 20 years after. First fragment, Gorod, Inferi, Somnium, Stortregn, Solipsismo, Spawn of Possession just to name a few...
Origin, Soreption, Archspire for some groovy brutal-tech. Gorguts and Ulcerate for some disso/avant-tech and maybe mix it up with a little tech-grind with Discordance Axis and Gridlink.
Was technodeath a typo? Because mixing Death metal with some kind of techo / electronic genres is available within the death metal scene. But i guess we are all referring to tech(nical) death metal here.
Additions of some bands that i really like: Wormed, Septycal Gorge, Putridity, Defeated Sanity, Archspire.