B
- B. Blend
- Babadotop
- Babbel
- Babolat
- Bagaggio
- Baita Shop
- Balão da Informática
- Balaroti
- Bali Beach
- Bananinha Paraibuna
- Banca Kids
- Banco Inter
- Banggood
- Barba de Respeito
- Barceló Resort
- Basicamente
- Basico.com
- Batiche
- Bauducco
- Baw Clothing
- Bayard Esportes
- Bazara33
- Be2
- Beach Park
- Beard
- Beard Brother Hood
- Beauty Box
- Bebê Fofuxo
- Bee Fitness
- Beep Saúde
- beFauna
- Bel Air
- Beleaf
- Beleza Cosméticos
- Beleza na Web
- Beline
- Belong Be
- Beluga
- Bemcolar
- Bemol
- Berlanda
- Berry Look
- Besni
- Bestfit
- Bet365
- Bet7k
- Betano
- Betec
- Betfair
- Betmotion
- Betnacional
- Betobet
- Betsul
- Betway
- BetWinner
- Beyoung
- Bibi Calçados
- Big Bus Tours
- Big Hair
- Bigmen
- Bijoulux
- Bike Haus
- Bike Itaú
- Billabong
- Binance
- Bio Extratus
- Bio Pharmus
- BiO2
- Bionatus
- Biossance
- Biovea
- BioVittare
- Birden
- Black Targ
- Bluefit
- Blueman
- Blunt Store
- Bnboats
- Bo.Bô
- Boa Saúde Suplementos
- Bobstore
- Bodog
- Body for Sure
- Bodytech
- Bold Snacks
- Bombay Herbs
- Bonprix
- Book Depository
- Booking.com
- Bookplay
- Boutique Infantil
- Boutiquefeel
- Box Viva
- Bra Lingerie
- Bradesco
- Braé Hair Care
- Brandili
- Brasil Cacau
- Brasil Paralelo
- Brastemp
- bringIT
- Brinox Shop
- Brir
- Britânia
- British Airways
- Buckman
- Buddha Spa
- Bug Shop
- Buga Lupa
- Bulking
- Bullguard
- Buser
- Buson
- ByGeo