- OSCAR SA DE CV
- -
Afghanistan
- ORIENTAL GROWTH LIMITED
- -
Hongkong
- OSMUNDSON MFG. CO.
- -
United States
- ORIENTAL FORCE DEVELOPMENT LTD
- -
Hongkong
- ORIENTAL GOOD CORP.
- -
United States
- OSAKA AVIATION CO., LTD.
- -
Japan
- OY HEDI AB
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Finland
- ORTOVOX VERTRIEBSGMBH
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Austria
- ORINX S.A.
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Belgium
- OY GOMEX FINLAND AB
- -
Finland
- OSBORN INTL.
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United States
- ORMEROD INTERNATIONAL LIMITED
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United Kingdom
- OSCHMANN GMBH
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Germany
- ORIENTAL METAL WORKS
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India
- ORENDA AEROSPACE CORPORATION
- -
Canada
- ORIENTAL ENGINEERING CORPORATION
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India
- ORIGINAL COMMUNICATION
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Paraguay
- OROKI TRADING COMPANY
- -
United Kingdom
- ORBIT IRRIGATION PRODUCTS
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United States