[Simon Moon]

There are plenty of bands in the avant-garde prog-rock genre that use plenty of atonality (Henry Cow, Thinking Plague, Universe Zero, Motor Totemist Guild, etc), but not sure if there are any that use 12 tone.

Ron Jarzombek, an incredible guitarist, uses 12 tone with his technical metal band "Blotted Science".

But now you got me on a search for more!

 

[Simon Moon]

The Thinking Plague does use some 12-tone.

This article points out where they use it on their album "In Extremis"

https://malleusincus.wordpress.com/2010/08/31/genre-defying-bands-part-2-thinking-plague/

In a negative review of the album "A History of Madness", the reviewer has the following to say, "How many 12-tone wankfests can we get through in one album?". Oh well, one person's 'wankfest' is another's (mine) brilliance.

Vocalist, Deborah Perry, also bases some of her vocal lines on 12-tone.

Extreme metal band, Peculate, uses quite a bit of 12-tone in their compositions. Their Wiki page says the following:

"Peculate "combines metal, djent, jazz, contemporary classical, avant-garde, electronic, and experimental music together to create progressive music with punk sensibilities." Much of Peculate's music is composed using the 12-tone technique."

They use growling vocals, so YMMV, but there is also plenty of 12-tone.

https://www.youtube.com/user/PeculateMusic

 

[Simon Moon]

If you like that album, I'm sure you'll like all of them. There's been some changes in personnel over the years but the standard is constant. (Their "output" is very infrequent).

They are working on new material right now.