Fixer.io - Fixer provides a free, simple, and lightweight API for current and historical foreign exchange rates and currency conversion. The API tracks rates published daily by the European Central Bank.
FxPro - FxPro offers web and mobile based online trading platforms and tools.
e2eFX - Nexolink is a Toronto based foreign exchange software developer specializing in services for the small to large size FX broker and FX Global Payment Businesses .
Exchange on Net - Access business email, calendar, and contacts on your PC, phone, and web browser with Exchange Online. Hosted email that’s easy to use and easy to manage.
ExchangeRate-API - An easy to use, free & reliable Exchange Rate API trusted by tens of thousands of developers since 2010!
Datasoft FxOffice - Foreign Exchange and Global Payments Platform