CoStar Group Inc - Company Profile
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The following section provides information on CoStar Group Inc’s senior management, executives, CEO and key decision makers and their roles in the organization. For more insight into CoStar Group Inc's management and employees, unlock the full data with our company analytics monitoring tool.
Executives
Louise S Sams
Chairman Executive BoardMs. Louise Sams has been the Chairman of the company since 2019. Previously, she served as the Executive Vice President and General Counsel of Turner Broadcasting System, Inc and served as the President of Turner Broadcasting System International, Inc. from 2019 to 2020. Ms. Sam is currently serves as the Director of Loop Industries, Inc. and Rollins, Inc.
Andrew C Florance
Chief Executive Officer; Director; President Executive BoardMr. Andrew C Florance has been the Chief Executive Officer, President, and Director of the company. He co-founded the company in 1987. Previously, Mr. Florance served on the Governing Boards of The National Cathedral Elementary School.
Robin Rossmann
Chief Financial Officer Senior ManagementMr. Robin Rossmann has been the Chief Financial Officer of the company since August 2026. Previously, he served as Senior Director at Deloitte.
Cyndi Eakin
Chief Accounting Officer Senior ManagementMs. Cyndi Eakin has been the Chief Accounting Officer of the company. Prior to this, she served as the Senior Vice President of Investor Relations of the company.
Jason Butler
Chief Information Officer Senior ManagementMr. Jason Butler serves as Chief Information Officer of the company. Previously, he served as Senior Vice President of Software Development for the company. Prior to this, Mr. Butler served as the Chief Technology Officer of the European business unit at CoStar US and UK businesses.
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