DACs that upsample to DSD internally?

PS Audio makes the iconic and hugely popular DirectStream DAC. This DAC converts PCM TO DSD and outputs (as do all DACS) via analogue through your preamp. Spectacular results that produce analogue like results. I run Nodost cable from my DAC to my Krell Foundation and stream high res files from my music server, a Mac Mini. I use Pure Music software that attaches itself to iTunes and takes over as the music player. The music is, well, not only BETTER than analog but kind of like a musical heroin. :-). 

Thanks to everyone for your answers!

PS Audio Directstream, EMM Labs, dCS are ones I can think of.

These 3 companies are certainly recognised by audiophiles and audio journalists all over the world for making great sounding dac’s.
It matters not what chips they use or whether they convert PCM to DSD.
The proof as always, is in the listening.

Don't forget Playback Design, Andreas Koch who designed the EMM Labs Dacs and a few other before he went independent and started his own company.

The Esoteric K-01X does.  I have one and it is exceptional in both modes: PCM unfiltered and no upscaling and conversion of PCM to DSD.