- West Coast Seed & Supply
- Western Pet Supply
- White Feather Distribution Inc
- White Pine Inc
- Wholesale Kennel Supply
- Wholesome Pet Co
- Wildlife Sciences
- Wildwood Seed & Specialties
- Willy Bonkers Inc
- Wilson Pet Supply
- Wilson Pet Supply Inc
- Wilson Polymaid Products
- Windigo Kennels & Outfitters
- Winifred G Strickland
- Winners Cir Farrier Supplies
- Wolverton Inc
- Wolverton Inc
- Wolverton Inc
- Wolverton Inc
- Woodpecker's
- Woodsman Co
- Woody's Wabbits
- Woofstock Pet Supplies
- Woolf Products LLC
- Wordy Birdy Products
- World Wide Fish Imports
- Worldwise Inc
- WTF Wholesale Inc
- Yuppie Puppy Sporn Inc
- Zoo Med Laboratories Inc
- Zukes
