Andrew Marks

The Blackstone Group, Inc. provides marketing research services. It provides custom market research services for clients in industries as consumer packaged goods, financial services, healthcare and technology. The firm's clients include eBay, Harris Bank and Pfizer. The company was founded by Ashref A. Hashim in 1987 and is headquartered in Chicago, IL.

UBS Investment Bank provides investment banking and securities brokerage services. Its clients include institutional and corporate clients, intermediaries, governments, and hedge funds. The firm also provides merger and acquisition advisory, private placement, investment research, foreign exchange, equity, and leverage finance advisory services. The firm is headquartered in San Francisco, CA.

Blue Ridge Capital LLC is a SEC-registered investment advisor and hedge fund manager headquartered in New York City. The firm was founded in 1996 by John Griffin. They provides discretionary investment management and administrative services to two private investment funds, one onshore and one offshore, whose interests are offered only on a private-placement basis. Blue Ridge Capital also manages on a discretionary basis two private funds whose investors are limited to eligible employees, their family members and former employees.