In addition to its classic Green River knives, Dexter-Russell has a line of poly-handled Sani-Safe knives meant for commercial use. Many of these mimic the classic patterns.
Dexter Russell 04113 Sani-Safe 12" Butcher Knife with High Carbon Steel Blade and White Polypropylene Handle
I believe these can be had in stainless, too, for those who are squeamish about the commercial use of carbon steel.
Yes, the Dexter-Russel "Beef Skinner" that I posted above is an NSF certified "Sani-Safe" knife with a white PP handle and stainless blade.