| 601 | Kingston Enterprises Management Partners, Ltd. T15UF5684L | Active |
| 602 | Kc Techno 53327529J | Active |
| 603 | Kar Hin Timber Co (pte) Ltd 198004636N | Active |
| 604 | Karma Koma International Pte. Ltd. 201543462Z | Active |
| 605 | Ken Birch Company (pte) Ltd 197903650E | Active |
| 606 | Kids Fullstop Pte. Ltd. 201543399Z | Active |
| 607 | Karen's Hair Fashion & Beauty Salon 44231500K | Active |
| 608 | Koma Pte. Ltd. 201543525R | Active |
| 609 | Keystone Management Services 53327569E | Active |
| 610 | Khmn Transport 53327715M | Active |
| 611 | Keppel Infrastructure Services Pte. Ltd. 198102908M | Active |
| 612 | Kraft Kunststofftechnik Gmbh T15UF2557J | Active |
| 613 | Kyriacou Singapore Pte. Ltd. 201606379N | Active |
| 614 | Kadokawa Gempak Starz Sdn. Bhd T16UF0093C | Active |
| 615 | Kitano Seiki Co Ltd T15UF5630B | Active |
| 616 | K H Pang Services 21076800B | Active |
| 617 | Kim Chuan Mui Trading Enterprise 38781800J | Active |
| 618 | Kosmix Corporation Limited T15UF5749F | Active |
| 619 | Ktp (2013) Trading Pte. Ltd. 201605917G | Active |
| 620 | Kim Boon Engineering Work 23154800A | Active |
| 621 | Khiam Teck 04330000J | Active |
| 622 | Kim Chuan Transport 09934500E | Active |
| 623 | Kssg Llp T16LL0756L | Active |
| 624 | Kang Har Eng Bee 05492500B | Active |
| 625 | Kian Seng Seafood Restaurant Pte. Ltd. 201601792Z | Active |
| 626 | Koufu Pte Ltd 199602661M | Active |
| 627 | Kiton Singapore Pte. Ltd. 201108796Z | Active |
| 628 | Keihin Multi Trans (s) Pte Ltd 198900697H | Active |
| 629 | Kot Selections Llp T11LL0019F | Active |
| 630 | Kaplan Singapore Pte. Ltd. 200505804W | Active |