DR/tiled on cloud render high res single images

[cdavis]

Hi,
Does anyone know of a online render farm that actually supports DR or tiling of a High Resolution single frame ( maya 2015/vray 3.0) i found one that says it does but they actually don't , which is a shame as their service & support is great & i have used them for animation . But I have 6 x 15k renders I need to get done over night.
On my small network of 6 PC's each image is taking around 6 hours using DR ( and has been optimized as much as possible )

I know there are tons of online render farms out there, so if anyone has used any successfully for the purposes mentioned above , if they could let me know that would be great.

Many Thanks
Chris

[Morbid Angel]

Company I worked for used render core, not sure how it would work for DR though, but their service is snappy you can at least email them and find out.