| Released | Contributor | Author | Title | Pages | Price |
| 29-Nov-2009 | PriceTarget Research, Inc. |
N/A
| CoStar has a current Overall Rating of C (Neutral). | 7 |
$25 |
| 25-Nov-2009 | New Constructs, LLC |
N/A
| CSGP: Risk/Reward Rating: Full Report: Cash Truth Behind the Reported Earnings | 19 |
$10 |
| 25-Nov-2009 | Pechala's Reports | Lubomir Pechala | COSTAR GROUP INC (CSGP=US) - REPORT FOR ACTIVE TRADERS | 4 |
$25 |
| 24-Nov-2009 | Renaissance Capital |
N/A
| China Real Estate Information - IPO Update | 8 |
$150 |
| 23-Nov-2009 | Plunkett Research, Ltd. | Jack W. Plunkett | CoStar Group, Inc. (CSGP) Profile & E-Commerce Industry Trends Analysis 2009 | 38 |
$149 |
| 23-Nov-2009 | Plunkett Research, Ltd. | Jack W. Plunkett | Real Estate & Construction Industry Trends, Statistics & Analysis 2009 (Summary) | 64 |
$199 |
| 23-Nov-2009 | Plunkett Research, Ltd. | Jack W. Plunkett | E-Commerce & Internet Business Industry Market Research and Competitive Analysis 2009 | 612 |
$299 |
| 23-Nov-2009 | Plunkett Research, Ltd. | Jack W. Plunkett | E-Commerce & Internet Industry Trends, Statistics & Analysis 2009 (Summary) | 60 |
$199 |
| 23-Nov-2009 | Plunkett Research, Ltd. | Jack W. Plunkett | Real Estate & Construction Industry Market Research and Competitive Analysis 2009 | 599 |
$299 |
| 23-Nov-2009 | ValuEngine, Inc. |
N/A
| ValuEngine Detailed Valuation Report for CSGP | 13 |
$25 |