CoStar: A Star Rising Higher

The Washington based CoStar Group (WKN: 922134 / ISIN: US22160N1090, Symbol: CSGP), with a staff of over 4,300 worldwide, is a company to watch in the rating industry, since CoStar is a leading provider of commercial real estate information, analytics and online marketplaces. In addition to its importance to the rating industry, it is also rated “investment grade” by leading credit rating agencies (Moody’s, Fitch Ratings).

Founded in 1987, CoStar conducts expansive, ongoing research. The claim of the company is to produce and maintain the largest and most comprehensive database of commercial real estate information. CoStar bought Thomas Daily in Germany, which was already well known among rating analysts not only in Germany. Thomas Daily became a subsidiary in 2016.

CoStar offers a significant suite of online services enabling clients to analyze, interpret and gain unmatched insight on commercial property values, market conditions and current availabilities.

  • Along with Thomas Daily, CoStar comprises a number of strong brands, such as
  • STR, which provides premium data benchmarking, analytics and marketplace insights for the global hospitality sector.
  • Ten-X provides a leading platform for conducting commercial real estate online auctions and negotiated bids.
  • LoopNet is the most heavily trafficked commercial real estate marketplace online with over 7 million monthly unique visitors.
  • Realla is the UK’s most comprehensive commercial property digital marketplace.
  • Westside Rentals,
  • and
  • form the premier online apartment resource for renters seeking great apartment homes and provide property managers and owners a proven platform for marketing their properties.
  • By December 17, 2020, the US Federal Trade Commission (FTC) has cleared CoStar Group’s acquisition of Homesnap, Inc., an industry-leading provider of technology solutions to the real estate industry. CoStar and Homesnap submitted the proposed merger for FTC review in late November 2020.
  • CoStar announced its acquisition of, setting the stage for its entry into residential real estate marketplaces.

Homesnap powers the nation’s most productive agents who regularly rely on having its accurate, real-time MLS information and enhanced productivity features at their fingertips. Supported by a consortium of hundreds of the country’s largest multiple listing services (MLSs), more than 1.1 million real estate agents have access to Homesnap’s free professional product, Homesnap Pro, representing over 90% of the residential real estate agents and listings in the United States. Homesnap’s public residential real estate portal showcases 1.3 million active property listings and tens of millions of home shoppers use the Homesnap website and app to look for a home.

“Adding Homesnap to CoStar Group’s network provides significant complementary value to our existing arsenal of broker and agent-centric tools, directly benefiting the entire industry,” said CoStar Group founder and CEO Andy Florance. “We are proud to join CoStar Group and leverage their more than 30 years of knowledge and experience in property data, software and marketing to take advantage of this significant growth opportunity,” said John Mazur, CEO of Homesnap.

CoStar Group’s websites attracted an average of approximately 69 million unique monthly visitors in aggregate in the third quarter of 2020.

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