Oueneau Paul E.
Outokumpa Oyj
Outokumpu Engineering Contractors Oy
Outokumpu Harjavelta Metals Oy
Outokumpu Research Oy
Outokumpu Technology Oy
Outotec Oyi
Overdeck John M.
Overdeck John S.
Overdeck John S.
Overländer Jörg
Owego Heat Treat, Inc.
Owsiany Michael
Oxy-Arc International Inc.
Oxy-Tuben AB
Oxytechnik
Ozaki G. T.