| 1981 | Omni Marketing Group,asia Pte Ltd
198700136C | 有効 |
| 1982 | Oceangrand Chartering (singapore) Pte. Ltd.
200903296H | 有効 |
| 1983 | Open D Group International Limited
T11UF3585C | 有効 |
| 1984 | Openschoolbag Pte. Ltd.
201316495W | 有効 |
| 1985 | Oris Singapore Pte. Ltd.
199006219C | 有効 |
| 1986 | Oudi Box
53325388L | 有効 |
| 1987 | Ogura Construction (singapore) Pte Ltd
198701399R | 有効 |
| 1988 | Oriental Great Dragon Investment & Development Pte Ltd
199303006H | 有効 |
| 1989 | Octoshape Aps
T11UF5032F | 有効 |
| 1990 | Ohm Overseas Projects Pte Ltd
198702453K | 有効 |
| 1991 | Oregan Networks Pte. Ltd.
201303857Z | 有効 |
| 1992 | Oji Interpack Singapore Pte. Ltd.
198704014E | 有効 |
| 1993 | Osl Shipping Limited
T12UF0005G | 有効 |
| 1994 | One97 Communications Ltd
T11UF2075H | 有効 |
| 1995 | Omya Holding Ag
T11UF4844F | 有効 |
| 1996 | Oil Marketing & Trading International
T11UF3991K | 有効 |
| 1997 | Orion Engineered Carbons International Gmbh
T11UF3985L | 有効 |
| 1998 | Oh Hup Huat Sesame Oil
37774700M | 有効 |
| 1999 | Orix Holdings Limited
T11UF2099B | 有効 |
| 2000 | Oman Trading International Ltd.
T11UF0684C | 有効 |
| 2001 | Olfi Lux Holdings Sarl
T11UF5054H | 有効 |
| 2002 | Ovd Kinegram Ag
T12UF0006C | 有効 |
| 2003 | Oak Unipro Solutions Pte. Ltd.
201313649W | 有効 |
| 2004 | Orbit Peripherals Pte Ltd
199004577G | 有効 |
| 2005 | Osf Transport Services
53232543E | 有効 |
| 2006 | On The Ball Consulting
53136115B | 有効 |
| 2007 | Ohana Holdings Pte. Ltd.
200201159W | 有効 |
| 2008 | Orchard Maharajah Restaurant Pte Ltd
199003148E | 有効 |
| 2009 | Orient Bio Tech Pte Ltd
199001664G | 有効 |
| 2010 | Optimus Consulting Pte. Ltd.
201109415Z | 有効 |