What suppliers do you recommend for VCO/VCXOs?

ADI does not manufacture stand-alone VCO/VCXOs, however, we do utilize products from different manufacturers. We can not guarantee the operation or performance of any other manufacturers' parts, but we can provide a list of manufacturers of VCO/VCXOs with which we are familiar: Epson-Toyocom, Sirenza, Valpey-Fisher, Vectron, Zcomm. Keep in mind there are many others which may be considered.