COSTAR GROUP, INC.

Overview

CoStar Group, Inc. is a real estate technology company that provides property information and analytics, online marketplaces, and 3D digital-twin technology for commercial and residential real estate. Its products include CoStar, LoopNet, Apartments.com, Homes.com and Matterport. The company describes its mission as digitizing the world’s real estate to help people discover properties, insights and connections.[1][2]

CoStar operates marketplaces in the United States, Australia, Europe, Canada and the Asia-Pacific region. It reported $3.247 billion in revenue for 2025 and more than 8,000 employees across 20 countries.[3]+2 [1]+4

Products & services

CoStar Group’s subscription-based CoStar platform provides commercial real estate listings, property and ownership records, photographs, maps, floor plans, sales comparables, and market data on rents, vacancies, leasing and construction. Its tools support property research, valuation, lease and cash-flow analysis, and portfolio tracking. CoStar with STR adds hotel benchmarking for occupancy, average daily rate and revenue per available room.[6]+3

Its marketplaces include LoopNet, where owners and brokers advertise commercial properties for sale or lease through paid listing packages, and Ten-X, which provides online commercial-property auctions and related marketing tools. Residential offerings include Apartments.com, which sells apartment advertising to owners and managers, and Homes.com, whose agent-focused listings are supported by conversational search through Homes AI. CoStar also operates the U.K. property portal OnTheMarket and the Australian property portal Domain.[10]+5

Matterport provides immersive 3D digital twins of physical spaces, with subscriptions, spatial-data capture services and camera-related offerings. Other services include BizBuySell’s marketplace for businesses and franchises, and lease administration, accounting and transaction-management software through CoStar Real Estate Manager and Visual Lease.[16]+2 In 2025, reported revenue categories were CoStar (39%), LoopNet (10%), other commercial real estate (7%) and residential real estate (45%); revenue shares were not separately reported for most individual brands.[19] [6]+16

Geographic presence

CoStar Group operates in the United States, Canada, Europe, Australia and other Asia-Pacific markets. Its residential property marketplaces include Homes.com in the United States, Domain in Australia and OnTheMarket in the United Kingdom. Sales teams are primarily based in field offices across the United States, Canada, the United Kingdom, Spain, France, Germany and Australia.[3]+2

The company is headquartered in Arlington, Virginia, and has offices in Richmond, Virginia, that primarily house research, product development and sales functions. Its international facilities include principal locations in London and Sydney, as well as leased operations space in Paris, Madrid, Freiburg and Manila.[21]+2

As of January 31, 2026, CoStar reported 6,602 employees in the United States, approximately 78% of its workforce; 1,155 in Asia and Oceania; 608 in Europe; and 72 in Canada. Revenue denominated in foreign currencies accounted for approximately 9% of total revenue in 2025, but that measure does not represent a breakdown of revenue by customer location.[24]+5 [3]+11

Business segments

CoStar Group reports two business segments: Commercial Real Estate and Residential Real Estate. Commercial Real Estate provides property information and analytics, online marketplaces, and 3D digital-twin technology. Its principal brands include CoStar, LoopNet, Matterport, BizBuySell and Ten-X. Residential Real Estate operates marketplaces for homes to rent or buy and sells advertising and leads to agents, owners, landlords and property managers. Its brands include Apartments.com, Homes.com and Land.com in the United States, Domain in Australia, and OnTheMarket in the United Kingdom.[1]

In 2025, Commercial Real Estate generated $1.79 billion, or approximately 55% of total revenue; Residential Real Estate generated $1.46 billion, or approximately 45%. Within Commercial Real Estate, the disclosed revenue categories were CoStar ($1.26 billion), LoopNet ($312 million) and Other Commercial Real Estate ($216 million). These categories are not additional reportable segments, and revenue for individual residential brands is not separately disclosed.[19] [1]+6

Company history

Andy Florance founded CoStar Group in 1986 to bring digital information to the commercial real estate industry. The company went public in 1998. Its early expansion included the acquisition of COMPS.COM around 2000 and Property and Portfolio Research in 2009, adding property data and market forecasting capabilities.[30]+2

CoStar broadened beyond commercial real estate information through a series of major acquisitions: LoopNet, a commercial property marketplace, in 2012; Apartments.com in 2014; and ForRent in 2018. It subsequently acquired hospitality-data provider STR in 2019, commercial real estate auction platform Ten-X in 2020, and residential property site Homes.com in 2021. These transactions extended its business into property advertising, hospitality analytics, auctions and residential listings.[33]+5 [33]+8

Sources

• COSTAR GROUP, INC. — Full financial report (2025 Y)
  28 citations

  [1][2][3][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]
• www.sec.gov[4]
• www.costargroup.com[30]
• investors.costargroup.com[31]
• www.costar.com[32]
• COSTAR GROUP, INC. — Full financial report (2012 Y)[33]
• COSTAR GROUP, INC. — Full financial report (2014 Y)[34]
• COSTAR GROUP, INC. — Full financial report (2018 Y)[35]
• www.costargroup.com[36]
• www.costargroup.com[37]
• COSTAR GROUP, INC. — Full financial report (2021 Y)[38]