Concur

Concur is the leading provider of spend management solutions and services in the world, helping companies of all sizes transform the way they manage spend so they can focus on what matters most. Through the Concur open platform, the entire travel and expense ecosystem of customers, suppliers, and developers can access and extend the Concur T&E cloud. Concur systems adapt to individual employee preferences and scale
to meet the needs of companies of all sizes.

See more at: https://www.concur.com/en-us/about-concur