Isomet has considerable experience in the growth of PbMoO4 and TeO2, and we are currently growing 1"-diameter poled LiNbO3. We have a large number of crystal growth stations: 17 PbMoO4, 4 TeO2, and 1 LiNbO3. PbMoO4 growth stations can be easily converted to the growth of LiNbO3, if required to meet high volume production requirements. PbMoO4 is not a well-known birefringent material, we have prepared a PbMoO4 datasheet. Our TeO2 datasheet is available here.