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| 4022 | Sing Ming Engineering
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| 4023 | Sanyi Engineering Pte. Ltd.
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| 4024 | Scare Crow Contractor
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| 4025 | Sin Hong Ji Engineering Pte. Ltd.
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| 4026 | Shanghoe Engineering Pte. Ltd.
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| 4027 | Shinneo Project Services
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| 4028 | Steeltech Engineering And Constructions
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| 4029 | S Lite (m & E) Engineering
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| 4030 | Sierra Engineering Pte. Ltd.
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| 4031 | Sun Zhen Builders Pte. Ltd.
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| 4032 | Sin Hua Engineering Pte. Ltd.
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| 4033 | S&c Equipment Services
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| 4034 | Soonly Hwa Build Iron Structure Furniture Contractor
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| 4035 | S & L Plasterceil Decor
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| 4036 | Sin Yah Aluminium Works
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| 4038 | South Asia Metal Works
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| 4039 | Sheng Lee Hardware & Trading
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| 4048 | Siong Fu Construction Pte. Ltd.
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