Big travel management companies are seeking new sources of data even as they work to improve the quality of info from more traditional inputs.

American Express Global Business Travel on a "case by case" basis works with clients to incorporate data on sales performance and employee attrition. After completing an upgrade last year of its AnalytIQs platform, Carlson Wagonlit Travel offers a similar service.

BCD Travel provides custom data integration through the Advito consultancy. On top of travel, payment and expense . . .

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