Cogent , the american specialist of mini-modules boards in "credit card" form factor, based on high performance and low power RISC CPUs (MIPS, ARM, Intel XScale)
[See the products.]
MicroSys, a german company, is a specialist of high end and extended temperature range boards such as :
Mini-modules
PCI
CompactPCI
VME
PMC
Industry Pack
[See the products.]