Large-Scale NA-based CNC prototyping

Hi -
Looking for recommendations for a North America (USA preferably) based CNC machined prototype manufacturer. We need a large-scale capability - parts the size of washing machines - and urethane foams tend to provide an appropriate level of finish resolution for prototyping.
@case0823 earlier mentioned Designcraft… maybe this is an option?
Also looking into ARRK, in San Diego.
Thanks everyone.

I don’t have a direct lead, but when I took a MasterCAM training course (for tiny things like vac-form tools for snacks), the instructor had worked on gigantic-scale CNC machines, and other students were doing all sorts of things. Maybe reaching out to MasterCAM or posting in their forums could provide a lead to the kind of shop you need.