| 1981 | Omni Marketing Group,asia Pte Ltd
198700136C | 启用 |
| 1982 | Oceangrand Chartering (singapore) Pte. Ltd.
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| 1983 | Open D Group International Limited
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| 1984 | Openschoolbag Pte. Ltd.
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| 1985 | Oris Singapore Pte. Ltd.
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| 1986 | Oudi Box
53325388L | 启用 |
| 1987 | Ogura Construction (singapore) Pte Ltd
198701399R | 启用 |
| 1988 | Oriental Great Dragon Investment & Development Pte Ltd
199303006H | 启用 |
| 1989 | Octoshape Aps
T11UF5032F | 启用 |
| 1990 | Ohm Overseas Projects Pte Ltd
198702453K | 启用 |
| 1991 | Oregan Networks Pte. Ltd.
201303857Z | 启用 |
| 1992 | Oji Interpack Singapore Pte. Ltd.
198704014E | 启用 |
| 1993 | Osl Shipping Limited
T12UF0005G | 启用 |
| 1994 | One97 Communications Ltd
T11UF2075H | 启用 |
| 1995 | Omya Holding Ag
T11UF4844F | 启用 |
| 1996 | Oil Marketing & Trading International
T11UF3991K | 启用 |
| 1997 | Orion Engineered Carbons International Gmbh
T11UF3985L | 启用 |
| 1998 | Oh Hup Huat Sesame Oil
37774700M | 启用 |
| 1999 | Orix Holdings Limited
T11UF2099B | 启用 |
| 2000 | Oman Trading International Ltd.
T11UF0684C | 启用 |
| 2001 | Olfi Lux Holdings Sarl
T11UF5054H | 启用 |
| 2002 | Ovd Kinegram Ag
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| 2003 | Oak Unipro Solutions Pte. Ltd.
201313649W | 启用 |
| 2004 | Orbit Peripherals Pte Ltd
199004577G | 启用 |
| 2005 | Osf Transport Services
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| 2006 | On The Ball Consulting
53136115B | 启用 |
| 2007 | Ohana Holdings Pte. Ltd.
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| 2008 | Orchard Maharajah Restaurant Pte Ltd
199003148E | 启用 |
| 2009 | Orient Bio Tech Pte Ltd
199001664G | 启用 |
| 2010 | Optimus Consulting Pte. Ltd.
201109415Z | 启用 |