CoStar Names Robin Rossmann Chief Financial Officer

CoStar Group Inc. announced on Monday that Robin Rossmann will become its chief financial officer (CFO) effective July 31, 2026. Rossmann transitions into this role from his current position as managing director for Europe. He will succeed Christian Lown, who is departing CoStar to pursue an opportunity outside the company's industry. CoStar stated that Lown's departure is not linked to any disagreements regarding the company's operations, policies, or practices.

In his new capacity as CFO, Rossmann will be responsible for CoStar's global finance organization. His duties will encompass overseeing financial and operational performance, capital allocation, financial planning, and investor engagement. He will report directly to CoStar's founder and CEO, Andy Florance. Over the past two years, Rossmann has been instrumental in restructuring CoStar's European operations, achieving a reduction of approximately $51 million in costs, which represented about 25% of the European cost structure. Concurrently, he drove double-digit revenue growth and successfully launched CoStar in France.

Rossmann joined STR in 2016, where he led businesses across EMEA, Asia Pacific, and Latin America. He became part of CoStar Group following its acquisition of STR in 2019. Throughout his tenure with STR and CoStar, spanning nearly a decade, Rossmann has contributed to product launches in global markets, the execution and integration of acquisitions, the scaling of international operations, and the advancement of strategic initiatives. Florance highlighted Rossmann's unique combination of financial expertise, operating leadership, and a proven track record in cost reduction and growth acceleration, noting his success in delivering strong organic revenue growth and expanding margins across CoStar's international businesses.

Prior to his roles at STR and CoStar, Rossmann, a chartered accountant, spent 13 years at Deloitte. There, he served as a senior director, advising global public and private real estate and hospitality companies in the United States, the United Kingdom, and other markets. His responsibilities at Deloitte included financial assurance, internal controls, and risk management.