SDR(Software Defined Radio)
Analog Device : Analog Device is not providing the Off-the-shelf hardware for SDR, but the company produces the most widely used RF transciever chipset AD9361 AD9464, AD9371, AD9375 ,ADRV9009. As far as I know, most of the popular comercial SDR hardware in the market are built around this chipset.
EPIC Solutions : As far as I know of, this company provides the most diverse SDR hardware ultilizing almost all Analog Device chipsets. See here.
Ettus Releaserch / National Instrument : See here
Lime Microsystems : See here.