Fanuc and Siemens Sinumerik are the two dominant high-end CNC control families. Fanuc dominates in Asia and North America with unmatched ubiquity, reliability and service depth. Siemens Sinumerik is strong in Europe and on complex multi-axis and mill-turn machines, valued for its powerful high-end features and open, PC-based architecture.
For most general work either is excellent; the edge often comes down to what your people know and what your machines run. On complex 5-axis and mill-turn, Sinumerik is a common choice. See CNC control and value machines at The Machine Blue Book.
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