A maker of online real estate marketplaces and data tools, CoStar Group runs well-known sites like CoStar, LoopNet, Apartments.com, Homes.com, and Matterport, which agents, brokers, and property managers use to list, find, and tour properties. Founder Andy Florance started the business in 1987 in the Washington, D.C. area after realizing commercial real estate had almost no organized data compared to stock markets. A fun quirk: the name is a mashup of "computerized" and "star," and the firm grew through big acquisitions like Matterport and the British site OnTheMarket.
CoStar Group completes $800M cash acquisition of Zonda, expanding into new home data and marketplaces
CoStar Group, Inc. completed its acquisition of Zonda (Bora, Inc. and subsidiaries) for $800 million in cash on August 21, 2026.
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Zonda is a leading provider of new home construction data, homebuilder software, and residential real estate marketplaces, serving over 3,000 customers.
In 2025, Zonda generated approximately $170 million in revenue with a 23% Adjusted EBITDA margin.
The acquisition brings NewHomeSource.com and Livabl into CoStar Group's portfolio of online marketplaces.
The transaction was announced on May 29, 2026, and has satisfied regulatory approvals and customary closing conditions.
7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits
CoStar Group appoints Robin Rossmann as CFO, effective July 31, 2026
Robin Rossmann, currently Managing Director, Europe, will become CFO on July 31, 2026, succeeding Christian Lown.
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Christian Lown resigned effective July 31, 2026, to pursue an opportunity outside the company's industry, with no disagreement with the company.
Rossmann's compensation includes an annual base salary of £440,000 (transitioning to $590,000 upon relocation to Arlington, VA), a target bonus of 100% of base salary, and a one-time equity grant valued at $2,500,000.
Rossmann is also eligible for relocation services and a $500,000 cash relocation subsidy, and participation in the Executive Severance Plan.
The appointment was announced via a press release on July 13, 2026.
5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits
CoStar stockholders reelect all 8 directors and approve 2026 ESPP at annual meeting
All eight director nominees were elected at the June 23, 2026 annual meeting, with votes for ranging from 93.92% to 99.50%.
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Stockholders approved the 2026 Employee Stock Purchase Plan, authorizing 2.5 million new shares and replacing the 2021 ESPP.
The advisory say-on-pay proposal passed with 71.38% of votes cast in favor.
Ernst & Young LLP was ratified as independent auditor for fiscal year 2026.
The 2026 ESPP became effective upon stockholder approval at the annual meeting.
5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 5.07 Submission of Matters to a Vote of Security Holders · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits
CoStar Group to acquire Zonda for $800 million in cash
CoStar Group, through its subsidiary CoStar Realty Information, Inc., entered a Stock Purchase Agreement on May 28, 2026 to acquire Zonda, a provider of new home construction data, software, and marketplaces.
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The purchase price is $800 million in cash at closing, with no financing condition or stockholder approval required.
Closing is expected in the second half of 2026, subject to regulatory approvals (including HSR) and other customary conditions; the agreement can be terminated if not consummated by May 28, 2027.
Zonda serves over 3,000 customers, has a 104% net customer retention, and operates NewHomeSource and Livabl marketplaces.
CoStar expects the acquisition to be accretive to adjusted EPS in the first full year of ownership and to create cross-sell opportunities with its existing businesses.
1.01 Entry into a Material Definitive Agreement · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits
CoStar Group appoints Nana Banerjee to its Board of Directors, effective March 15, 2026.
The Board expands to nine directors, eight of whom are independent, following Banerjee's appointment.
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Nana Banerjee was appointed as an independent member of the Board of Directors of CoStar Group, Inc., effective March 15, 2026.
Banerjee will participate in the company's director compensation program as described in the 2025 Form 10-K.
He has not been named to any Board committee at this time.
Banerjee brings over two decades of experience, including as former CEO of Pelmorex Corp. and McGraw-Hill, and previously served at Cerberus Capital Management and Verisk.
5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 7.01 Regulation FD Disclosure
CoStar Group reports FY2025 revenue up 19% to $3.2B, net income $7M, Adjusted EBITDA $442M up 83%
Full year 2025 revenue was $3.2 billion, up 19% from $2.7 billion in 2024; Q4 2025 revenue was $900 million, up 27% year-over-year.
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Full year 2025 net income was $7 million, with diluted EPS of $0.02; Q4 2025 net income was $47 million, diluted EPS $0.11.
Adjusted EBITDA for full year 2025 was $442 million, up 83%; Q4 2025 Adjusted EBITDA was $177 million, up 58% from Q4 2024.
Record net new bookings of $308 million in 2025; Homes.com Network had over 2.1 billion views and 108 million average monthly unique visitors in 2025.
Company plans to repurchase $700 million of common stock in 2026 under its $1.5 billion repurchase program; affirms 2026 revenue guidance of $3.78-$3.82 billion.
Segments changed from geography-based to product portfolio-based (Commercial and Residential) in Q4 2025.
2.02 Results of Operations and Financial Condition · 7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits