| 3991 | Splendid Engineering Pte Ltd
199603150M | Active |
| 3992 | Soo Kim Watt Construction
27424400D | Active |
| 3993 | S C Lee Engineering
44055100E | Active |
| 3994 | Summit Engineering Services Pte. Ltd.
201019981M | Active |
| 3995 | South Spring Contractor Pte Ltd
198401100D | Active |
| 3996 | System & Parts Engineering
39114800A | Active |
| 3997 | Sintech Scientific (s.e.a.) Pte Ltd
199600400D | Active |
| 3998 | Straits Electrical Pte. Ltd.
199101227N | Active |
| 3999 | Sci Electric Pte. Ltd.
201104806N | Active |
| 4000 | Solaris Builders
52997172X | Active |
| 4001 | Super Building Construction Pte. Ltd.
201014393W | Active |
| 4002 | Shing Soon Aluminium Co
30701200W | Active |
| 4003 | S. K. Rosenbauer Pte. Ltd.
198502635H | Active |
| 4004 | Scb Construction Pte. Ltd.
201105287R | Active |
| 4005 | Steelogy Pte. Ltd.
200515495D | Active |
| 4006 | Speed Aire (m&e) Engineering Pte. Ltd.
201014545E | Active |
| 4007 | Srm Engineering & Construction Pte. Ltd.
201012432M | Active |
| 4008 | Sapphire Windows
41018100E | Active |
| 4009 | Sin Kian Huat Canvas & Rental Of Tables & Chairs Enterprise
33562800A | Active |
| 4010 | Stse Engineering Services Pte Ltd
199608671D | Active |
| 4011 | Sang & Company Pte. Ltd.
201023110R | Active |
| 4012 | Service Communication International Pte Ltd
199604355M | Active |
| 4013 | Sintonhai (s) Construction & Development Pte Ltd
199601470H | Active |
| 4014 | Sim Lian Koru Bena Jv Pte. Ltd.
199306639R | Active |
| 4015 | Sun Singapore Systems Pte. Ltd.
199302449N | Active |
| 4016 | Systematic Airconditioning & Refrigeration Engineering
48101200A | Active |
| 4017 | Sin Kai Teck Supplier
42218400D | Active |
| 4018 | San Zhen Construction
52842673K | Active |
| 4019 | Sin Metal Industries
42834900E | Active |
| 4020 | Sg Support Service Pte. Ltd.
200720629K | Active |