GoUrl.io - Bitcoin Payment Gateway.
Coinbase Commerce - Accept BTC, ETH & other digital currencies in your business
Coinomi - Free Secure Multi-Coin Multi-Asset HD Wallet for Bitcoin and Altcoins
BitPay - Bitcoin payment gateway. Enterprise-grade solutions, from the pioneer of bitcoin payments.
CoinGate - CoinGate is a payment gateway for Bitcoin, XRP, Litecoin, Ethereum and 50 other cryptocurrencies.
Cryptopay - Cryptopay is a European company that offer services to people who trade Bitcoin, Ethereum and more than 100 other digital currencies.