WASHINGTON, July 29, 2013 (GLOBE NEWSWIRE) -- CoStar Group, Inc. (Nasdaq:CSGP), the primary provider of websites for commercial real estate information, analytics and marketing services, today announced that District of Columbia Mayor Vincent C. Gray presented a 2013 Mayor's Sustainability Award to CoStar Group, recognizing the company for outstanding commitment in sustainable practices. Mayor Gray presented the awards to nine individuals, businesses and civic organizations in a ceremony held on Thursday, July 25, 2013, at the National Museum of Women in the Arts in Washington, DC. The Mayor was joined by Congresswoman Eleanor Holmes Norton, U.S. EPA Regional Administrator Shawn Garvin, District Department of the Environment (DDOE) Director Keith A. Anderson and numerous business and community leaders. Sheila C. Johnson, founder and CEO of Salamander Hotels and Resorts and co-owner of the Washington Mystics, Wizards, and Capitals, served as Mistress of Ceremonies. "It is a great honor to be recognized by Mayor Gray for our company's dedication to sustainability," said CoStar Group Founder and CEO Andrew C. Florance. "CoStar has a long-standing commitment to sustainable business practices throughout our company, and also within the built environment that our business serves. We are proud to call Washington, DC our home, and to support the Mayor's vision for making the District a model for achieving a healthier environment, job creation and expanded prosperity." Since 2009, the Mayor's Sustainability Awards (previously the Mayor's Environmental Excellence Awards) have been awarded through a competitive selection process to recognize individuals, businesses and organizations that are moving the District toward a more sustainable future. This year's winners represent a range of innovative endeavors to improve the lives of residents, the quality of our environment, and access to healthy and affordable food and housing. "The District is taking its place as a national and international leader in urban sustainability, because of the innovative ideas and civic commitment of people who care deeply about our community and our environment," said Mayor Vincent Gray. "Our Sustainable DC Plan outlines the key challenges we face as a community: growing jobs and our economy; ensuring health and wellness; promoting equity and diversity; and protecting the climate and our local environment. The actions of our award winners will ensure we meet these challenges—they are creating a greener, healthier, and more livable city today, and for generations to come."