Its client list includes individuals such as Tiger Woods and Pete Sampras and companies like General Electric and Texaco.

CNN: ASIANOW - TIME Asia | Travel Watch

Its Japanese corporate client list includes 800 of Japan's 2, 300 exchange-listed firms.

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It says its customers are heavily weighted toward nondiscretionary spending categories, such as grocery and pharmacy, while its financial-institution client base includes more than 1, 300 customers.

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If a law firm, say, sets up a group that includes its partners and client A, it cannot let on that it also works for client B.

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