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Mark A. Klionsky

Former Senior Vice President of Marketing & Corporate Communications at CoStar Group, Inc.
In The News
Career History

Mark A. Klionsky

Former Senior Vice President of Marketing & Corporate Communications at CoStar Group, Inc.


57 (Born 1960)
Number of Relationships
This person is connected to 242 people.

Relationships See Details

Executive Vice President of Corporate Development at CoStar Group, Inc.

Senior Vice President of Licensing & Pricing at CoStar Group, Inc.

Vice President-Research at CoStar Group, Inc.

Senior Vice President, Portfolio Research at CoStar Group, Inc.

Chief Executive Officer at Rain King Software, Inc.

Executive Vice President at LoopNet, Inc.

Vice President, Costar Product Management at CoStar Group, Inc.

Chief Technology Officer at CoStar Group, Inc.

Former General Counsel & Secretary at CoStar Group, Inc.

Co-Founder at CoStar Group, Inc.
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In The News See more

Business Wire
May 25, 2017

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Educational Background

Undergraduate Degree 
Rowan University is a public university in Glassboro, New Jersey, USA with a satellite campus in Camden, New Jersey. The school was founded in 1923 as Glassboro Normal School on a twenty-five acre site donated by the town.[3] The school became New Jersey State Teachers College at Glassboro in the 1930s, and Glassboro State College in 1958. Starting in the 1970s, it grew into a multi-purpose institution, adding programs in business, communications, and engineering.

Career History

Senior Vice President of Marketing & Corporate Communications
2000 - 2015
CoStar Group, Inc. engages in the provision of information, analytics, and marketing services to the commercial real estate industry. Its integrated suite of online service offerings includes information about space available for lease, comparable sales information, tenant information, information about properties for sale, internet marketing services, analytical capabilities, information for client's websites, information about industry professionals and their business relationships, data integration, and industry news. It operates through the North America and International segments. The North America segment comprises of U.S. and Canada. The International segment includes of the United Kingdom, Spain, Germany, and France. The company was founded by Andrew C. Florance and Michael R. Klein in 1987 and is headquartered in Washington, DC.
Senior Vice President
Part of Nielsen Holdings Plc, Miller Freeman, Inc. is a company headquartered in San Francisco, CA, that provides information and publication services. The firm was founded in 1902. On 18 Jul 00 Vnu BV acquired Miller Freeman, Inc. from United News & Media Plc for $638.98 million.
Senior Vice President-Marketing
NAI Global, Inc. provides real estate services. It provides project leasing, consultancy, management, investment, marketing, valuation, advisory and corporate services. The company was founded by Gerald C. Finn in 1978 and is headquartered in Princeton, NJ.

Other Affiliations

Mark A. Klionsky is affiliated with CoStar Group, Inc., Miller Freeman, Inc., NAI Global, Inc..

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