PRESS RELEASE DETAIL


Jan 18, 2008

Cushman & Wakefield Selects CoStar as Data Standard for U.S. Operations

2002-04-10 2002 Cushman & Wakefield Selects CoStar as Data Standard for U.S. Operations CoStar To Provide Leasing, Sales Data Under Long-Term Renewal Agreement

2002-04-10 2002 Cushman & Wakefield Selects CoStar as Data Standard for U.S. Operations CoStar To Provide Leasing, Sales Data Under Long-Term Renewal Agreement

BETHESDA, MD -- CoStar Group Inc. (NASDAQ:CSGP) has signed a multi-year renewal agreement to provide its industry leading leasing and sales data to over 2,000 Cushman & Wakefield Inc. professionals nationwide.

CoStar Group is the leading provider of information services to the U.S. commercial real estate industry. Cushman & Wakefield is one of the premier real estate services firms worldwide.

The agreement provides Cushman & Wakefield professionals with access to CoStar Property™, a complete inventory of office and industrial properties, to research leasing options and analyze market conditions. In addition, Cushman & Wakefield investment sales and valuation professionals will have access to CoStar COMPS®, the only verified national database of comparable sales transactions.

"CoStar provides the best data available," stated Bruce Mosler, president of Cushman & Wakefield's U.S. Operations. "And that's what is most important to us -- equipping our brokers with the best information to represent our clients."

"We have enjoyed a close, collaborative relationship with Cushman & Wakefield's brokerage and research professionals for several years," stated CoStar Group president & CEO Andrew C. Florance. "Cushman & Wakefield is known for providing the highest level of service to its clients. We're pleased to continue our long-term association with one of commercial real estate's largest and most prestigious firms."

"Our long-term relationship with CoStar has enabled us to provide our professionals with the highest quality data while maximizing our ongoing investment in our internal research staff," Mosler added. "With CoStar as our information partner, our professionals can spend more time analyzing data and advising clients."

About CoStar Group, Inc.

Headquartered in Bethesda, MD, CoStar Group, Inc. (NASDAQ:CSGP), is the leading provider of information services to the U.S. commercial real estate industry. CoStar's suite of products offers customers access to the most comprehensive, verified database of commercial real estate information in 50 U.S. markets. The company has approximately 850 employees and contractors in 27 offices nationally, including approximately 600 highly trained commercial real estate research professionals.

About Cushman & Wakefield, Inc.

Cushman & Wakefield is the largest fully integrated real estate services firm in the world. Founded in 1917, it has 147 offices in 49 countries around the globe, and 11,000+ talented professionals. Cushman & Wakefield is involved in every stage of the real estate process, from strategy to execution. The firm represents clients in buying, selling, financing, leasing, managing and valuing assets, and provides strategic planning and research, portfolio analysis, site selection and space location services.

This news release includes "forward-looking statements," which involve many risks and uncertainties that could cause actual results to differ materially from these statements. Factors that could cause or contribute to such differences include, but are not limited to, those stated in CoStar's Form 10-K for the year ended December 31, 2001, under the heading "Risk Factors." All forward-looking statements are based on information available to CoStar on the date hereof, and CoStar assumes no obligation to update such statements.
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