Hyperledger - Hyperledger is a multi-project open source collaborative effort hosted by The Linux Foundation, created to advance cross-industry blockchain technologies.

Google Pay - Make secure payments right through your Android device.

BlockCypher - AWS for Block Chains

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

GoCoin - A secure, boutique, blockchain payment gateway for online merchants, since 2013.

Vodafone Wallet - Vodafone Wallet is a significantly used platform developed and published by Vodafone Inc.