Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.
Avalara - Cut tax compliance costs, not corners. Avalara automates tax compliance and can help improve accuracy while reducing costs.
ProPay - ProPay is a multiple payment making service provider that lets its users to make payment to anyone in any part of the world.
TaxJar - TaxJar simplifies sales tax filing for eCommerce sellers.
XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.
Thomson Reuters ONESOURCE - ONESOURCE tax software and solutions synchronize every aspect of your work and link international, country, state and local tax laws.