- Baby Delight
- Baby Brezza
- Baby Merlin's Magic Sleepsuit
- Baby Signing Time
- Baby Monitors Direct
- Baby2k
- Baby Tula
- Babymel
- Babypallet
- Bac'n
- BackSide Fabrics
- Backstreet Surveillance
- Backyard Buildings
- Backyard Pool Superstore
- Bacon Buff
- Baabuk
- Badger Basket Company
- Baffin
- Bael Wellness
- Bagatelle.City
- Bahama Breeze
- Bait
- BAKblade
- Baked by Melissa
- Bakers Krate
- Bakers Square
- Baking Steel
- Balance Superfood Shot
- Balega
- Balenciaga
- BallClubBox
- Balmain
- Bambo Nature
- Bamboo Supply Co.
- Bandai OnLine
- Bangalla
- Bangor Cork
- Bao Bao Issey Miyake
- Bape
- BaoFeng Tech
- Bar Louie
- Bar and Cocoa
- Barbara Depta
- Barbasol
- Barbell Brigade
- Barbella Box
- Bardot
- Bareburger
- Barebones
- BareTraps
- Bargain Bead Box
- Bargain Mugs
- Barker Creek
- BariatricPal Store
- Barracuda Networks
- Base Blu
- BasicTalk
- Basin
- BasketWorks
- Battery Heads
- Battle Vision
- Baume & Mercier
- Bawdy Bookworms
- Bay Alarm Medical
- Bawdy Beauty
- BBC Shop - US (BBC Worldwide Americas)
- BBVA
- BDS Suspension
- Beaba USA
- Beach Tours Mexico
- Beach House Linens
- Beach Terrace Inn
- Bead and Reel
- Beachwaver
- BeadCrate
- Beaming
- Bean Box
- BeanGenius
- Bear Mattress
- Beard Kings