| 601 | Queensland Nickel Pty. Ltd. T11UF5089C | Active |
| 602 | Quench Soft Solutions Private Limited T11UF1661G | Active |
| 603 | Quality Export House Pte Ltd 199401523E | Active |
| 604 | Quads Supplies Pte. Ltd. 201303058N | Active |
| 605 | Quanting Employment Services Pte. Ltd. 201001275M | Active |
| 606 | Quest Research Group Pte. Ltd. 201426832H | Active |
| 607 | Quest Field Investments Limited T15UF3757D | Active |
| 608 | Qi Ji Food Loft Pte. Ltd. 200810402E | Active |
| 609 | Quann Singapore Pte. Ltd. 200004964N | Active |
| 610 | Quay Invest Pte. Ltd. 200720722H | Active |
| 611 | Quest Oil & Gas Pte. Ltd. 200715091H | Active |
| 612 | Qmu Asia Pte. Ltd. 200809853G | Active |
| 613 | Quadrant Asia Pte. Ltd. 200810489D | Active |
| 614 | Queen Street Trading Pte. Ltd. 200709281M | Active |
| 615 | Quebee Safety Technologies (international) Pte. Ltd. 200710781R | Active |
| 616 | Quotz Pte. Ltd. 200710944G | Active |
| 617 | Q Secure Pte. Ltd. 201218890K | Active |
| 618 | Quesh Consultants (pte.) Ltd. 200710758N | Active |
| 619 | Quality Food Services Pte. Ltd. 201009632W | Active |
| 620 | Querubin Pte. Ltd. 201305384E | Active |
| 621 | Queen Marketing Group Private Limited 201532231G | Active |
| 622 | Qib N Qil Engineering 53197275E | Active |
| 623 | Quotient Infinity Holdings Pte. Ltd. 200710699C | Active |
| 624 | Quantiqo Pte. Ltd. 200707884Z | Active |
| 625 | Quotient Travelplanner Pte. Ltd. 200707918H | Active |
| 626 | Qian Xun Singapore Pte. Ltd. 200708498N | Active |
| 627 | Qiao Zhen Tcm 53082239C | Active |
| 628 | Qantas Asia Investment Company (singapore) Pte. Ltd. 200709108M | Active |
| 629 | Quentin's Pte. Ltd. 200822927H | Active |
| 630 | Quantum Biotech Pte. Ltd. 200610636H | Active |