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CoStar Group will announce financial results for the second quarter of 2009 following the market close on Wednesday, July 22, 2009. Management will conduct a conference call to discuss the second quarter results and the company's outlook for the third quarter at 11:00 AM EDT on Thursday, July 23, 2009.

CoStar Group, Inc. (Nasdaq: CSGP), the number one provider of information/marketing services to the commercial real estate industry, today refuted LoopNet’s supposedly “irrefutable evidence” of unlawful activity.  Specifically, in response to LoopNet’s unsupported claims, CoStar announced that a settlement agreement entered into by the parties in 2005 expressly permits the very activity that LoopNet now complains of – namely, the access by CoStar to information created and uploaded by brokers to broker-owned websites and to broker-created advertisements appearing on non-password protected areas of LoopNet’s website. 

Frank A. Carchedi has been named to the newly created position of Senior Vice President, Corporate Development, reporting directly to CoStar Group President and CEO Andrew C. Florance. Carchedi, who served as CoStar’s Chief Financial Officer from 1997 to 2007, will work with the company’s management team to identify, complete and integrate acquisitions that support the company’s growth strategy. 

CoStar Group, Inc. (Nasdaq:CSGP), the number one provider of information/marketing services to the commercial real estate industry, and media partner Real Estate Forum magazine, the industry's leading news publication, are pleased to announce the winners of the 2008 CoStar Power Broker Awards(tm), recognizing the "best of the best" in commercial real estate brokerage.

CoStar Group, Inc. today announced that its participation in this week's International Council of Shopping Centers (ICSC) RECon 2009 event was an unqualified success, with the company's market-leading commercial real estate information and marketing services generating very strong interest among those attending the global retail real estate convention.

CoStar Group, Inc. (NASDAQ: CSGP), the number one provider of information/marketing services to the commercial real estate industry, today announced that net income for the quarter ended March 31, 2009 increased 21.1% to $6.1 million, or $0.31 per diluted share, compared to $5.0 million, or $0.26 per diluted share for the quarter ended March 31, 2008.  EBITDA (earnings before interest, taxes, depreciation and amortization) for the quarter ended March 31, 2009 was $14.4 million, an increase of 25.2% compared to EBITDA of $11.5 million for the quarter ended March 31, 2008.

CoStar Group, Inc. will announce financial results for the first quarter of 2009 following the market close on Wednesday, April 22, 2009. Management will conduct a conference call to discuss the results and the company's outlook for the second quarter at 11:00 AM ET on Thursday, April 23.

CoStar Group, Inc. (Nasdaq: CSGP) today announced that the American Real Estate Society (ARES), an association of real estate thought leaders whose members include leading global academic and professional researchers, selected a study conceived and co-authored by CoStar Group executives to receive the “Best Paper Published in the Journal of Real Estate Portfolio Management (JREPM)” award for 2008.

CoStar Group has been selected by the U.S. Environmental Protection Agency (EPA) to receive the 2009 Excellence in ENERGY STAR Promotion Award.  The award recognizes CoStar’s outstanding contribution to reducing greenhouse gas emissions through significant consumer education efforts aimed at increasing awareness of ENERGY STAR buildings and workspaces within the commercial real estate marketplace. CoStar will be recognized at an awards ceremony in Washington, D.C. on March 31, 2009.

CoStar Group, Inc. (Nasdaq:CSGP) announced today that its ongoing efforts to detect and prosecute unscrupulous firms and individuals who attempt to access CoStar's copyright-protected information and images illegally have proven highly effective. In 2008 alone, CoStar filed 7 lawsuits and recovered approximately $1.8 million in back fees and new licensing revenues from more than 100 different companies engaged in passcode misuse and data theft.