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Some of the men contacted by ABC News denied they used their corporate cards, and ABC News could not independently confirm if the credit card numbers listed were corporate accounts.
Watch the story tonight on 20/20 at 10 p.m. ET
Davis says one CEO ordered her to send him invoices for "roof repair on a warehouse" to disguise the payment for prostitutes from corporate funds.
"That is fraud," said former New York prosecutor Sid Baumgarten, who told 20/20 the district attorney should have investigated the men.
"Not necessarily just for the patronizing but for the use of these business records and credit cards to see what kind of fraud or tax fraud was being used. And if so, that is a major offense," Baumgarten said.
When ABC News contacted that CEO, he said he used his corporate card to pay for the escort service to entertain clients, but that there was no sex involved.
Davis operated her escort service as a prostitution conglomerate, with five different "brands" over a four year period, each with its own "price point" and websites.
At the high end was an escort service called Carlyle Trust, mimicking the name, but not connected in any way, to a prestigious investment firm. Davis said she recruited top fashion models who charged up to $2,000 an hour for clients of Carlyle Trust.
Her lower cost services charged $400 an hour for a "body rub," she said.
The "best little whorehouse on Wall Street" was located just a few blocks from the New York Stock Exchange, in apartment 3A at 136 William Street.
Davis operated three other "in-call" locations in the mid-town area of Manhattan.
The escort business took in as much as $200,000 a week, Davis estimated.
But it came to a screeching halt last year in the crackdown that followed the revelation that then-New York Governor Eliot Spitzer was client #9 of a rival escort service.
In a book to be released Feb. 6, "Manhattan Madam," Davis claims Spitzer had earlier been a client of her service but was banned because of his aggressive behavior trying to get girls to have unprotected sex with him.
Manhattan psychotherapist Jonathan Alpert, who works with many Wall Street clients, told ABC News that many of his clients who patronize escort services are accustomed to high risks and high stakes on the job, and seeing a prostitute, especially if one is married, provides the same rush. "You're playing with fire...it's part of the culture of Wall Street. A lot of drugs, cocaine use, fast times, sex--it's part of the culture."
Alpert said people also use adult sexual service as a way to cope with stress in much the same way that one may use alcohol or drugs. "It's a way to escape," said Alpert, adding that "A lot of clients I see tell me they simply want someone to speak to, someone to listen to them."