Attached files

file filename
10-K - ANNUAL REPORT - COSTAR GROUP, INC.form_10-k.htm
EX-31.1 - CEO CERTIFICATION - COSTAR GROUP, INC.ceocert.htm
EX-21.1 - SUBSIDS OF REGISTRANT - COSTAR GROUP, INC.subsids.htm
EX-31.2 - CFO CERTIFICATION - COSTAR GROUP, INC.cfocert.htm
EX-23.1 - CONSENT OF E&Y - COSTAR GROUP, INC.ey-consent.htm
EX-10.28 - LONDON SUB-UNDERLEASE - COSTAR GROUP, INC.londonlease.htm
EX-32.1 - CEO 906 CERTIFICATION - COSTAR GROUP, INC.ceo-906_cert.htm
EX-10.26 - LONDON ORIGINAL LEASE - COSTAR GROUP, INC.londonoriglease.htm
EX-10.27 - BETHESDA OFFICE LEASE ADDENDUM - COSTAR GROUP, INC.bethofficelease_add.htm
EXHIBIT 32.2

CoStar Group, Inc.
2 Bethesda Metro Center, 10th floor
Bethesda, MD 20814

February 25, 2010

Securities and Exchange Commission
450 5th Street, NW
Washington, DC 20549

Re: Certification Of Principal Financial Officer Pursuant To 18 U.S.C. Sec. 1350

Dear Ladies and Gentlemen:

In connection with the accompanying Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2009, I, Brian J. Radecki, Chief Financial Officer of CoStar Group, Inc., hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1) such Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2009, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o (d)); and

2) the information contained in such Annual Report on Form 10-K of CoStar Group, Inc., for the year ended December 31, 2009, fairly presents, in all material respects, the financial condition and results of operations of CoStar Group, Inc.

   
By:
/s/ Brian J. Radecki
     
Brian J. Radecki
     
Chief Financial Officer
     
(Principal Financial and Accounting Officer and Duly Authorized Officer)

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to CoStar Group, Inc. and will be retained by CoStar Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

In accordance with Item 601 of Regulation S-K, this certification is being “furnished” as Exhibit 32.2 to CoStar Group, Inc.’s annual report and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by specific reference in such a filing.