CoStar Group Inc.

Andrew C. Florance founded CoStar Group, Inc. in 1987 to provide commercial real estate firms with a cost-efficient alternative for their mission-critical market information. Under his leadership as director, president and CEO, CoStar has become the leading provider of researched information services to commercial real estate professionals in the United States, United Kingdom and France. Mr. Florance is the recipient of numerous awards, including Transwestern's 2007 Public Company TrendSetter of the Year Award for revolutionizing the way the commercial real estate industry gathers, analyzes and uses property and market information. He also received Ernst & Young's Entrepreneur of the Year award in 2000 for pioneering work in real estate information services and the National Association of Industrial and Office Properties' prize for a white paper that examined the impacts of the 9-11 tragedy on tall and trophy office buildings. As an industry leader, Mr. Florance also helped develop concepts related to the federal government's use of real estate for former Vice President Al Gore's National Performance Review. The Federal Control Board of the District of Columbia also named Mr. Florance to a task force responsible for developing Washington, DC's strategic plan for real estate. A graduate of Princeton University, Mr. Florance serves on the Board of Trustees of The St. Andrews School and is a member of the board of the American Real Estate Society, an association of real estate thought leaders.

Brian Radecki was appointed CoStar Group's Chief Financial Officer in 2007. He has served in a number of financial and senior executive positions since joining the company in 1997. Prior to his appointment as CFO, Mr. Radecki served as Vice President of Research Operations, the company's largest operating area, and before that he was Director of Accounting and Finance where he was involved in every aspect of the company's accounting and finance functions in the U.S. and U.K. – from internal audit, tax and budgeting to SEC reporting and Sarbanes-Oxley compliance. Mr. Radecki also served as an integral member of CoStar's IPO team in 1998 and follow-on public offering in 1999. He has played a key role in the company's mergers and acquisitions, including the purchase, integration and operation of Comps, Inc. in 2000, FOCUS in 2003, and the Scottish Property Network the following year. Prior to joining CoStar, Mr. Radecki was the accounting manager at Axent Technologies, Inc. a publicly held international security software company. He also worked at Azerty, Inc. and the public accounting firm, Lumsden & McCormick, LLP, in Buffalo, NY. He earned a B.S. in business administration and a dual degree in both accounting and finance from the State University of New York at Buffalo.

Frank Simuro, Chief Information Officer, joined the Company in December 1999. Prior to joining CoStar Group, Mr. Simuro was Director of Data Warehousing at GRC International, a division of AT&T Corporation. Prior to GRC, Mr. Simuro was a technology consultant specializing in operational efficiency and database technologies. Mr. Simuro holds a Masters degree in Information Systems from George Washington University and a Bachelor's degree in Computer Science from State University of New York - Geneseo.

Jennifer Kitchen, Senior Vice President of Research, oversees CoStar Group's initiatives for gathering, researching and verifying commercial real estate property data, both in the field and in research centers in Bethesda, Columbia and White Marsh, Maryland; San Diego, California; Chennai, India; and Manila, Philippines. Ms. Kitchen first joined CoStar in 1994 as a research analyst for the company's first New York City research team and has held increasingly responsible management positions since then. Between 1995 and 1997, she led CoStar's research expansion into the Los Angeles market and managed its research operations on the West Coast. In 1998, Ms. Kitchen established CoStar's first field research and photography operations, earning a subsequent promotion to director of field research and photography. She was appointed vice president of field research in 2004, where she led the company's overall field operations for collecting building-level data and photographing properties throughout the United States. Ms. Kitchen holds a B.A. from Wellesley College in Wellesley, Massachusetts.

John Stanfill, Senior Vice President of Sales and Customer Service, first joined us in June 1995 as an Account Executive for the New York City market. Since then, he has held positions of increasing responsibility at CoStar, ranging from business development and national market expansion to management of the Company's Inside Sales Division. Before being appointed Senior Vice President of Sales and Customer Support, Mr. Stanfill held the position of Senior Vice President of Marketing & Product Management. Prior to joining CoStar, Mr. Stanfill founded a commercial real estate information service in Seattle that provided access to images of commercial buildings throughout the market. He earned a B.A. from Boston University.

Dan Kimball, Vice President of Marketing, brings more than a decade of strategic marketing experience to CoStar Group. Prior to joining CoStar in early 2007, Mr. Kimball held marketing leadership positions at Capital One and other financial services firms. He also was Partner/Vice President of Advertising at Questus Inc., a leading interactive marketing agency. Throughout his career at both start-ups and Fortune 500 firms, Mr. Kimball has spearheaded new ventures and directed a range of corporate development initiatives, including business development, marketing, e-commerce and product development. He joined CoStar as Senior Director, E-Commerce, and played a key role in the development and release of CoStar Showcase. Mr. Kimball is a graduate of Colgate University and holds a bachelor's degree in philosophy.

Paul Marples, Managing Director of CoStar's European operations, previously served as Managing Director of Property Investment Exchange Ltd. (Propex), a provider of Web-based transaction platforms and data exchanges in the U.K. commercial property market. Propex was acquired by CoStar in the first quarter of 2007. Mr. Marples began his career in the commercial property industry in 1984, as a Chartered Surveyor for Weatherall Green and Smith (Atisreal) in London and Spain. From 1984 to 1996, Mr. Marples rose from Chartered Surveyor to Partner (London) to Managing Director (Spain) of Weatherall Green and Smith. In 1996, he established Brown Cooper Marples (BCM), a London-based investment brokerage firm where he served as Managing Director, before helping launch Propex beginning in 2001 through the consolidation of a number of property-related, Internet-based businesses. Mr. Marples earned a M.A. in geography from Oxford University.

Michael Klein is the co-founder and Chairman of the Sunlight Foundation. After more than 35 years of active law practice at Wilmer Cutler & Pickering (now WilmerHale), Mike retired from that partnership on January 1, 2006 in order to devote all of his time to the array of business and non-profit activities that have increasingly engaged him over the past decade. Principal among these are: Chairman of the Board of Directors of CoStarGroup, Inc. (NASDAQ symbol CSGP) of which he was a co-founder; Vice Chairman of the Board and Lead Director of Perini Corporation (NYSE symbol PCR); a member of the Board of Directors of SRA International, Inc. (NYSE symbol SRX); director of the privately held cargo carrier ASTAR Air Cargo, Inc., formerly DHL Airways, Inc., of which he is a co-owner; Chairman and CEO of the acclaimed DC restaurant Le Paradou LLC, of which he was a co-founder and is the principal shareholder; and Chairman of the Board of the DC art gallery Zenith Gallery, Inc. of which he was a co-founder. Mike also serves as a trustee of The American Himalayan Foundation and of The Shakespeare Theatre Company.

Lauren Fitzgerald joined American Capital in September 2007 as Vice President, Human Resources. In this position she is responsible for leading all Human Resources activities as a business partner for our Corporate Groups—specifically, her clients include the FACT, Legal, Finance and Treasury, Corporate Communications, Investor Relations, Information Technology, Human Resources, Internal Audit, Real Estate, Financial Services and Residential Mortgage-Backed Securities groups. Additionally, she provides Human Resources advisory services to American Capital's portfolio of companies. Most recently, Lauren was the Senior Director of Human Resources for CoStar Group, Inc., a publicly traded commercial real estate information company, for nearly eight years. She led the overall HR strategy including talent management, employee rewards and employee relations matters, while overseeing its growth in both the US and abroad. Prior to that role, Lauren was a Senior Manager of Human Resources for Pepsi-Cola Company's Mid-Atlantic region. She also was selected as Pepsi's National Project Manger for Affirmative Action Compliance and appointed Human Resources liaison to Job Corps, a vocational training program administered by the U.S. Department of Labor. She has also served as the head of Human Resources and other HR roles at Morton's Restaurant Group, where she created the infrastructure of the Human Resources Department amid nationwide expansion. Lauren began her professional HR career at Encyclopaedia Britannica. She has Master of Business Administration and Bachelor of Science in Commerce degrees with concentrations in Human Resources from DePaul University in Chicago.

Charlotte Clark is a Cum Laude Graduate from Marshall University. Clark graduated May 5, 2007 and she received a Bachelor of Fine Art with an area of study in Photography. She also received a Bachelor Degree in Counseling. Clark is currently a Field Research Photographer with CoStar Group for the West Virginia/Richmond Region. She also completed a Workshop by Carrie Mae Weems at the Huntington Museum of Art, Huntington, West Virginia in October 2006. Clark's photographic work has been displayed in various locations in Huntington, West Virginia. These locations include, The Morris Building, Drinko Library, Birk Art Gallery, Marshall University's President's Office, and The Joan C. Edwards Playhouse. In December 2006, Clark was granted a press pass from Marshall Universtiy for the "We Are... Marshall" Movie Premiere. She was recently in the Sense of Place Exhibition at The Target Gallery in Alexandria, Virginia, Exhibition 280 at the Huntington Museum of Art in Huntington, West Virginia, and most recently Alternitive Processes at The Center for Fine Art Photography in Fort Collins, CO. Clark competed in a scholarship competition held by The Department of Art and Design and was awarded a three credit hour tuition waver for summer 2006 and half-tuition waver for the 2006-2007 school year.

Jonathan Coleman, our General Counsel and Secretary, first joined us in May 2000 as Deputy General Counsel. From October 1996 to May 2000, Mr. Coleman was a Trial Attorney with the U.S. Department of Justice's Civil Division. Prior to that, Mr. Coleman was an associate at Fried, Frank, Harris, Shriver & Jacobson, where he practiced commercial litigation. Mr. Coleman received a B.A. in economics from Dickinson College and his J.D. from George Washington University.

Catherine B. Reynolds brings to the world of philanthropy the same energy and entrepreneurial spirit that ensured her success in the realm of commerce. As the leader of two businesses, Mrs. Reynolds created a new and affordable way for Americans to finance a college education. A bold, innovative thinker, she developed a privately-funded supplement to government student loan programs. Through her vision and perseverance, hundreds of thousands of Americans have been able to attend the college of their choice. In only one decade, this creative approach to private educational financing revolutionized student lending and spawned a multibillion-dollar industry. Mrs. Reynolds devotes her time and abilities primarily to philanthropic pursuits. The mission of the Catherine B. Reynolds Foundation is profound in its implications, yet simply stated: to help educate young people, to inspire them to believe in their power to make a difference as individuals, and to motivate them to reach their greatest potential as citizens and productive members of society. Mrs. Reynolds was selected by Business Week as one of the 50 most philanthropic living Americans and the first self-made woman ever to make their list. This year, Mrs. Reynolds’ efforts on behalf of higher education have been recognized by the award of honorary degrees from Georgetown University, Morehouse College and Willamette University, as well as the NYU Gold Medal upon her induction into The Sir Harold Acton Society of New York University. She is also the recipient of the Woodrow Wilson Award for Corporate Citizenship, bestowed annually on America’s most outstanding business leaders by the Woodrow Wilson International Center for Scholars, and the National Italian-American Foundation's Achievement Award in Education and Cultural Affairs. Mrs. Reynolds has recently served as a member of the U.S. Secretary of Education's Commission on the Future of Higher Education.

David Bonderman has served as a director of Ryanair Holdings and Ryanair Limited since August 23, 1996 and as Chairman of the Board of Ryanair Holdings and Ryanair Limited since December 1996. In 1992, Mr. Bonderman co-founded Texas Pacific Group, a private equity investment firm. He currently serves as an officer and director of the general partner and manager of Texas Pacific Group. Mr. Bonderman is also an officer, director and shareholder of 1996 Air G.P., Inc., which owns shares of Ryanair. Mr. Bonderman serves on the Board of Directors of the following public companies: Burger King Holdings, Inc., CoStar Group, Inc. and GemAlto N.V.