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| 422 | United Specialists Pte Ltd 199201023E | Active |
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| 426 | Utopia Aire Pte Ltd 198003050K | Active |
| 427 | U Point Construction & Engineering 52988521B | Active |
| 428 | United Bmec Pte Ltd 198803226R | Active |
| 429 | Ulite Air Con 49236000J | Active |
| 430 | Unifurn Decoration And Construction Pte Ltd 199602942C | Active |
| 431 | Ulidoor Pte. Ltd. 200804695H | Active |
| 432 | Ultimate Display System Pte Ltd 199206282C | Active |
| 433 | Unu Automation Engineering 52822726B | Active |
| 434 | U & U Engineering 53088790L | Active |
| 435 | Universal Steel Industries Pte. Ltd. 200602866K | Active |
| 436 | Universal Building Products Pte. Ltd. 200416008R | Active |
| 437 | Universal Displays Pte Ltd 199407101W | Active |
| 438 | United Team Interior Design Pte. Ltd. 200402993D | Active |
| 439 | Up Communications Pte Ltd 199800711W | Active |
| 440 | United Stone Pte Ltd 198002823E | Active |
| 441 | Utracon Structural Systems Pte. Ltd. 199800740E | Active |
| 442 | United Cement Pte Ltd 199302085D | Active |
| 443 | U.sage Contracts Pte Ltd 199601304H | Active |
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| 445 | Uems Solutions Pte. Ltd. 198803772H | Active |
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