WASHINGTON, March 4, 2013 (GLOBE NEWSWIRE) -- CoStar Group, Inc. (Nasdaq:CSGP), commercial real estate's leading internet provider of information, analytics and marketing services, is pleased to announce the winners of the 2012 CoStar Power Broker Awards™, recognizing the best of the best in commercial real estate brokerage. With the largest professional research organization serving the commercial real estate industry, CoStar is uniquely positioned to identify the top firms and brokers in each market. Every year, CoStar records the commercial real estate sales and lease transactions that closed during the previous year and presents CoStar Power Broker Awards to the brokerage firms and individual brokers who closed the highest transaction volumes in commercial property sales and leases in each market. "CoStar is proud to honor the firms and brokers who perform at the industry's highest level each year," said CoStar Group CEO Andrew C. Florance. "These industry leaders deserve to be recognized for their hard work, expertise and superior deal-making abilities. We extend our congratulations to this year's winners on their achievements." The CoStar Power Broker Awards winners include brokers from national powerhouses including CBRE, Jones Lang LaSalle, Cushman & Wakefield, Cassidy Turley, Newmark Grubb Knight Frank, and Colliers International. These winners are joined by the top brokers and firms in over 90 markets across the country. A complete list of CoStar Power Broker awards winners by market can be found at www.CoStarPowerBrokers.com . All CoStar Power Broker Awards are based on transaction data in CoStar's commercial real estate database, which is the largest, independently researched database of commercial real estate property information available online. Information in CoStar's database is verified and continuously updated by over 1,000 CoStar researchers. CoStar's U.S. database contains more than 3.8 million commercial properties, and the total U.S. square footage of gross building area tracked and maintained by CoStar exceeds 91 billion square feet.