O. And K. Orenstein And Koppel Ag
O. And K. Orenstein And Koppel Aktiengesellschaft
O. B. Andrews Company
O. J. Pipelines Canada
O. J. Pipelines Canada An Alberta Limited Partnership
O. Lindemann And Co.
O. T. V. D. (omnium de Traitement Et de Valorisation Des Dechets
O. Tray Corporation
O.c.c. Company Limited
O.c.m. Valma S.p.a.
O.c.s. Officine Costruzioni Speciali S.p.a.
O.e.m. Project Management Limited
O.e.m. Technical Sales Inc.
O.g.e.c.
O.j. Pipelines Corp.
O.k. Laboratories Co. Ltd.
O.m.c.s.a. Officine Meccaniche Cigardi S.p.a.
O.m.g. Di Giorgio Pessina E. Aldo Perobelli S.n.c.
O.m.g. Officina Macchine Grafiche Di Pessina E. Perobelli
O.m.s.o. S.p.a.