- B-pay
- Bahraini Dinar
- Baloto
- BancodeChili
- Bancontact/ Mister Cash
- Bangladeshi Taka
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- Bank Transfer Express
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- BankLink
- Bayton Limited
- Bayview Technologies Inc.
- Beeline
- Belarusian
- Belarusian Ruble
- Belatra
- Bestbet Limited
- bet-at-home.com Internet Limited Casinos
- Betdrive N.V. Casinos
- Bethard Group Limited Casinos
- BetIt Operations Ltd
- BetOnline
- Betpoint Group Limited
- Betsoft
- Betway Limited
- BGaming
- Big Time Gaming
- Binance Coin
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- Bitcoin Cash
- BitShares
- Blackstone Systems Limited
- Blue Media N.V. Casinos
- BlueBet Pty Ltd
- Blueprint
- BML Group Ltd
- BMM Testlabs
- Bodog Custom
- Boku
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- Bolivian Boliviano
- Bonnal Ltd Casinos
- Boomerang Goup
- Booming Games
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- Borse Platform B.V.
- Bosnia and Herzegovina Convertible Mark
- Bosnian
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- BPay
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