Businesses starting with S
- Singapore Association For Mental Health
- Singapore Association For The Deaf
- Singapore Association Of Convention & Exhibition Organisers
- Singapore Association Of Personal & Executive Secretaries
- Singapore Association Of The Visually Handicapped
- Singapore Atrium Sales
- Singapore Australian Business Council
- Singapore Auto Air Centre
- Singapore Auto Air-Conditioning Co
- Singapore Automotive Industries Pte Ltd
- Singapore Avi-Research Pte Ltd
- Singapore Aviation & General Insurance Co (pte) Ltd
- Singapore Avicultural Society
- Singapore Baby & Child Clinic
- Singapore Baby & Child Clinic (napier Rd)
- Singapore Baby & Child Clinic (thomson Rd)
- Singapore Badminton Assn
- Singapore Baggage Transport Agency Pte Ltd
- Singapore Bakery & Cake Confectionery
- Singapore Bakery & Confectionery Trade Assn