MIDLOTHIAN, Va., March 17, 2017 -- Cater Nation, a popular online catering marketplace, today announced the integration of Cater Nation with Concur®, the world's leading provider of travel, expense and invoice management solutions. Now available in the Concur App Center, Cater Nation will provide Concur clients with one-stop-shopping for business catering in cities across the United States by sending Cater Nation receipts directly to Concur customers' accounts.