"The business of high-end prostitution is enormously profitable," Hynes said.
The prostitution service, named High Class NY, was run 24 hours a day out of an office in Brooklyn and charged from $400 to $3,600 an hour for its services, according to the 144-count indictment. It also provided customers with cocaine and other narcotics, the indictment said.
Hynes said clients often spent in excess of $10,000 in a single night.
They were "all high-end customers coming from the financial markets. People with nothing but money," he said.
Police said the business was extremely sophisticated, running several escort websites and using dummy corporations with misleading names and codes during business-related phone calls.
High Class NY even had a law firm draw up employment contracts for its prostitutes, who described themselves as models and fraudulently agreed to refrain from sexual contact with clients, police said.
"They were on the high-end of sophistication," said Vice Detective Joe Panico.