- Wakai Koi & Tropical Fish
- Water Trends Pte Ltd
- Waterworld Enterprises
- Wong Loy Kee Aquarium Store
- Wang Hu Fish Farm Trading
- Waterlife Aquarium Enterprises
- West Lake Aquarium
- White Crane Associates
- Winson Aquarium & Trading
- Wryli Import & Export
- Wu Hoon Han
- Wu Jie Tropical Fish Farm