| 1981 | Yotta Technologies 53292173M | Active |
| 1982 | Yok Badok 53295201D | Active |
| 1983 | Yi Yong Pte. Ltd. 201015774W | Active |
| 1984 | Ywc Pte Ltd 199504548W | Active |
| 1985 | Ytl Hotels (cayman) Limited T09UF2718F | Active |
| 1986 | Yeap Technology Pte. Ltd. 200402510K | Active |
| 1987 | Young Style Pte. Ltd. 201538311N | Active |
| 1988 | Yew Heng Engineering Pte Ltd 199506320H | Active |
| 1989 | Young At Art 53320189J | Active |
| 1990 | Yaw Ngiap Pte. Ltd. 201538422M | Active |
| 1991 | Ye Sin Design & Build Pte. Ltd. 199506210C | Active |
| 1992 | Yel Electronics Pte Ltd 199506196N | Active |
| 1993 | Yellowbox Studios Pte Ltd 199507716R | Active |
| 1994 | Yenom Pte. Ltd. 199505946K | Active |
| 1995 | Yishun Street 21 Learning Centre 53320194B | Active |
| 1996 | Yinicin System Marketing Pte Ltd 199503035D | Active |
| 1997 | Ying Tai Enterprise Pte Ltd 199503308C | Active |
| 1998 | Ykl Design & Construction Pte Ltd 199506104W | Active |
| 1999 | Yong Kheng Trading 53291617D | Active |
| 2000 | Ytl Power Services Sdn Bhd T12UF0043B | Active |
| 2001 | Yantai Luye Biotech Co. Ltd T11UF3246F | Active |
| 2002 | Yise Pte Ltd 199501292D | Active |
| 2003 | Yick Hong Hardware Pte Ltd 199506370M | Active |
| 2004 | Ying Jye Pte Ltd 199508456Z | Active |
| 2005 | Yong Zeng Yuan Pte Ltd 199505538C | Active |
| 2006 | Yee Cheong Yuen Noodle Restaurant Pte Ltd 199505446W | Active |
| 2007 | Y C Lim Anaesthetic Practice Pte Ltd 199506973M | Active |
| 2008 | Yiow Hin Transport & Trading Services Pte Ltd 199605334M | Active |
| 2009 | Yac Systems Singapore Pte Ltd 199507170Z | Active |
| 2010 | Yong Seng Hua Industrial Pte Ltd 199606966R | Active |