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| 422 | Yeo Teck Seng (S) Pte Ltd
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| 423 | Ych Holdings (pte) Ltd 198402213Z | Active |
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| 425 | Ytl Starhill Global Property Management Pte. Ltd. 200203473N | Active |
| 426 | Yuquan Preschool 53029839B | Active |
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| 428 | Ykk Ap S'pore Pte Ltd
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| 429 | Yishun Towing Pte Ltd 200106908W | Active |
| 430 | Yong Huat Industries 07590200A | Active |
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| 444 | Yap Christine Dr
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| 445 | Yee Cheong Plastic Manufacturers (pte) Ltd 197101447W | Active |
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| 447 | Y&t Aircon Engineering Pte Ltd 199800579M | Active |
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