| 841 | Yu Jia Ying Trading
52807075D | 有効 |
| 842 | Yankim Buylines International
52803687D | 有効 |
| 843 | Yue Fan
52808322L | 有効 |
| 844 | Yu Yuan Fang Pte. Ltd.
199706838H | 有効 |
| 845 | Yun Sheng Music & Drama Group
52880447B | 有効 |
| 846 | Yong Hup Huat Seafood Supply
52812821C | 有効 |
| 847 | Yong Hong Fish Merchant
52819884W | 有効 |
| 848 | Yong Kai Renovation & General Contractor
52798999A | 有効 |
| 849 | Yong Kiat Heng Engineering Construction
52685200C | 有効 |
| 850 | Yi Leather
53286514J | 有効 |
| 851 | Yio Chu Kang Zone `8' Residents' Committee
S83SS0046F | 有効 |
| 852 | Yio Chu Kang Zone `9' Residents' Committee
S83SS0045K | 有効 |
| 853 | Yama Medical Supplies
52870635K | 有効 |
| 854 | Yong Lee Huat Awning And Renovation
52512300L | 有効 |
| 855 | Y & T Air Conditioning Service
52801018B | 有効 |
| 856 | Yio Chu Kang Zone `4' Residents' Committee
S82SS0084G | 有効 |
| 857 | Yuan Meng Shih Temple
S97SS0138G | 有効 |
| 858 | Yio Chu Kang Constituency Citizens' Consultative Committee
S81SS0104H | 有効 |
| 859 | Yio Chu Kang Zone `7' Residents' Committee
S82SS0088B | 有効 |
| 860 | Yong Lee Engineering & Construction
52798851X | 有効 |
| 861 | Yong Marble General Contractor
52792600X | 有効 |
| 862 | Yong Ka Aluminium Renovation Works
52870205W | 有効 |
| 863 | Yellow Directory
52871079J | 有効 |
| 864 | Yeo Yee Chee Chinese Medical Hall
52812657A | 有効 |
| 865 | Yi Yi Bu She Boutique
52876551E | 有効 |
| 866 | Yiyi Traditional Treatment
52868934K | 有効 |
| 867 | Yen Nee Book Store
52800673L | 有効 |
| 868 | Yamasa Incorporation Pte Ltd
199802506D | 有効 |
| 869 | Yi May Hair & Beauty Saloon
52876501M | 有効 |
| 870 | Yong Sheng Food Catering
52880426W | 有効 |