Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.
Spike - Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.
ProPay - ProPay is a multiple payment making service provider that lets its users to make payment to anyone in any part of the world.
Keybase Chat - End-to-end encrypted chat built into Keybase
XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.
Crypho - End-to-end-encrypted messaging and file sharing