Andrew C. Florance

Co-Founder at CoStar Group, Inc.

Andrew C. Florance

Andrew C. Florance

Co-Founder at CoStar Group, Inc.

Career Highlights

CoStar Group, Inc.

RelSci Relationships


Number of Boards






Contact Data
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Co-Founder at CoStar Group, Inc.

Relationship likelihood: Strong

Secretary & Director at Property & Portfolio Research Ltd.

Relationship likelihood: Strong

Chief Technology Officer at CoStar Group, Inc.

Relationship likelihood: Strong

Founder & Chief Executive Officer at Management Leadership for Tomorrow

Relationship likelihood: Strong

Former Board Member at Children's Hospital Foundation

Relationship likelihood: Strong

General Manager, Costar Brokerage Applications at CoStar Group, Inc.

Relationship likelihood: Strong

President at JBG/Fund VIII Trust

Relationship likelihood: Strong

Former General Counsel & Secretary at CoStar Group, Inc.

Relationship likelihood: Strong

Managing Director, International at Navex Global, Inc.

Relationship likelihood: Strong

Chief Executive Officer at JHill Group LLC

Relationship likelihood: Strong

Paths to Andrew C. Florance
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Andrew C. Florance
Co-Founder at CoStar Group, Inc.
Family Members
Former Board Member at Children's Hospital Foundation

The Children’s Hospital Foundation is the fundraising arm for Children’s National Health System. They support doctors, nurses, clinicians, and staff who are advancing pediatric medicine through expertise, innovation, and excellence in care and research. They work with individual donors, corporations, and community organizations that share our dedication to improving the health of children. They are a 501(c)3 organization exclusively dedicated to Children’s National with a gold rating from Guidestar, the nation’s premier directory of nonprofits. Donations are used to improve care, develop new therapies, and find cures for childhood diseases.

B.A. in Economics
Class of 1986

Princeton University is a vibrant community of scholarship and learning that stands in the nation's service and in the service of all nations. Chartered in 1746, Princeton is the fourth-oldest college in the United States. Princeton is an independent, coeducational, nondenominational institution that provides undergraduate and graduate instruction in the humanities, social sciences, natural sciences and engineering. As a world-renowned research university, Princeton seeks to achieve the highest levels of distinction in the discovery and transmission of knowledge and understanding. At the same time, Princeton is distinctive among research universities in its commitment to undergraduate teaching. Today, more than 1,100 faculty members instruct approximately 5,000 undergraduate students and 2,500 graduate students. The University's generous financial aid program ensures that talented students from all economic backgrounds can afford a Princeton education.


The Sierra Club is the most enduring and influential grassroots environmental organization in the United States. They amplify the power of their 3.5+ million members and supporters to defend everyone’s right to a healthy world.


The Counselors of Real Estate (CRE) is a professional membership organization established exclusively for leading real property advisors. The purpose of the organization is to advance, enhance, and support these leaders by serving as a resource for information, by creating opportunities for professional development, by facilitating networking, and by providing the benefits of camaraderie. Members are awarded the CRE Designation, bestowed by invitation only, in recognition of their achievements in real estate counseling.

Career History
1987 - Current

CoStar Group, Inc. provides commercial real estate information, analytics, and online marketplaces to the commercial real estate and related business communities. The firm’s suite of online services enables clients to analyze, interpret and gain unmatched insight on commercial property values and market conditions. Its brands include CoStar, which is the largest provider of CRE research and real-time data; LoopNet, which is the most heavily trafficked mobile and online real estate marketplace;, which is the rental home resource for renters, property managers and owners; STR, which provides performance benchmarking and comparative analytics to the hotel industry; BizBuySell, which is the online marketplace for businesses-for-sales; and Lands of America, which is the operator of online marketplaces for rural real estate. The company was founded by Andrew C. Florance and Michael R. Klein in 1987 and is headquartered in Washington, DC.

Member-Cathedral Chapter
Boards & Committees
2005 - Current

American Real Estate Society produces and disseminating knowledge related to real estate decision making and the functioning of real estate markets. The company was founded in 1985 and is headquartered in Clemson, SC.

Chairman-Governors Board
Member, Board of Trustees

St. Andrew's School is a coed boarding school, grades 9 through 12.

Political Donations

Senator from Virginia


Senator at Office of the Senator from Utah, Mitt Romney


Former President of United States

Public Holdings
Restricted data only for RelSci Professional users.
22nd Annual Baron Investment Conference

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