CoinGate - CoinGate is a payment gateway for Bitcoin, XRP, Litecoin, Ethereum and 50 other cryptocurrencies.
KOHO - KOHO is a place where you can access your money in real-time and get instant cashback.
NOWPayments - NOWPayments is a crypto payment gateway that supports more than 300 cryptocurrencies, including fiat, and offers simple tools to accept crypto payments, like a crypto payments API, plugins, invoices.
Upromise - Upromise is the cashback coupon and rebate site.
Coinbase - Bitcoin, safe and easy.
Paribus - Find out for free if online stores owe you a refund!