Mailspring - Mailspring is a mail client for Mac, Windows and Linux.
Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.
Geary - Geary is an email application built for GNOME 3.
ProPay - ProPay is a multiple payment making service provider that lets its users to make payment to anyone in any part of the world.
The Bat - The Bat! is a secure desktop email client for Windows, designed to protect your correspondence against third-parties and to save your time.
XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.