Yeah, Tor Books publishes without DRM, and they seem to be one of the bigger SFF publishers these days. John Scalzi, George R.R. Martin (though not the ASoIaF books), Robert Jordan, Annalee Newitz, Charlie Jane Anders, and a bunch of other SFF authors I recognize. I'm sure there are others, but all the once I've noticed have been from Tor.

Indeed, and I love Tor for this. Brandon Sanderson has also come out against DRM. I already loved the man's books, now I love the man too