- South Island Aquarium Pte Ltd [ Link to website ]
- Sanyo Aquarium Pte Ltd (SAFEA) [ Link to website ]
- Sam Yick & Co Aquarium Pets Centre
- Sea Life Aquarium
- Sea Palace Aquarium Pte Ltd
- SeaQuest Waterworld
- Sea View Aquarium (s) Pte Ltd (SAFEA)
- Sin Chew Aquarium Centre
- Sing Leong Heng Aquarium & Trading
- Silver River Aquarium & Floral Trading
- Straits Aquariums Pte Ltd , The (SAFEA)
- Sun Aquarium Pte Ltd
- Sunbeam Aquarium Pte Ltd (SAFEA)
- Sunny Aquarium Company
- Sunrise Aquarium Pte Ltd
- Sunshine Aquarium Pte Ltd
- Sunyik (S) Pte Ltd
- Super Star Aquarium
- Supreme Aquarium Pte Ltd (SAFEA)
- Swee Seng Aquarium Florist Centre
- Swee Seng Fish Farm
- Sam Yick & Co Aquarium Centre
- San Chuang Hai Aquarium
- Sea Hill Aquarium
- Sea Hunt Aquarium (Pte) Ltd
- Seletar Aquarium
- Seng Jiu Bird & Tropical Fish
- Seng Seng Aquarium
- Sham Rock Aquarium
- Shan Hu Wholesale
- Shee Seng Aquarium
- Shilin Aquarium
- Shir-rene Aqua Design
- Sindotrade
- Sims Place Aquarium
- Sing Chew Aquarium
- SKC Enterprises
- Soon Heng Aquarium 88
- Soon Heng Fish Tanks Manufacture
- Soon Heng Fish Tanks Tropical Fish Dealer
- South East Asia Tropical Fish Traders
- Specialists Aquarium
- Sunshine Aquarium Pte Ltd (SAFEA)