Who owns LoopNet?
LoopNet is owned by CoStar (the United States, NASDAQ: CSGP).[1]
Evidence: CoStar Group, Inc. Annual Report on Form 10-K filed 2026-02-26, SEC EDGAR, 26 February 2026. Verified from filings; last checked .
Key facts
- Current owner
- CoStar Group, Inc. verified
- Owner HQ
- 🇺🇸 United States, Arlington
- Origin
- 🇺🇸 United States
- Category
- Internet & digital › Online commerce › Property listings
- Parent ticker
- NASDAQ: CSGP
- Last verified
- · 1 sources
About LoopNet
LoopNet is the flagship of CoStar's network of commercial property marketing sites, where owners, landlords and brokers advertise commercial properties for sale or lease. CoStar's 10-K lists LoopNet.com, LoopNet.co.uk, CityFeet.com, Showcase.com, BureauxLocaux and Belbex.com in the network and says the Domain acquisition brought it to Australia. It sits in the commercial segment beside the core CoStar database, Ten-X and BizBuySell.
What CoStar's annual report says about LoopNet
Sentences about LoopNet from CoStar's latest annual filing[1], copied word for word.
LoopNet LoopNet, the flagship brand of our network of commercial property marketing sites, is a top commercial real estate marketing site where property owners, landlords, and brokers can advertise properties for sale or lease on a site that supplements their listing with CoStar Group's database of property information and content.
LoopNet Silver is designed for real estate professionals seeking maximum exposure and advanced marketing tools and markets listings to all LoopNet.com visitors.
LoopNet Gold, Platinum, and Diamond Ads provide additional exposure on the LoopNet Network and retargeting across the web.
How often CoStar names LoopNet in its annual report
A plain count of the times the name appears in the text of each annual report, not counting the start of a sentence. A brand that an owner writes about more is usually one it treats as central. The brand is named less often than it was three years earlier.
Ownership timeline of LoopNet
Where LoopNet sits in CoStar
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full CoStar ownership tree →
See the full CoStar brand portfolio (6) →
Other brands owned by CoStar
CoStar controls 6 brands on Brandtree, 6 of them in internet & digital.
Also in internet & digital
Other brands in property listings, and who owns them
CoStar has more brands in property listings on Brandtree than any other owner: 6 of 19.
| Brand | Owner | Owner based in |
|---|---|---|
| Flatmates.com.au | REA Group | 🇦🇺 Australia |
| StreetEasy | Zillow | 🇺🇸 United States |
| Flatfox | SMG Swiss Marketplace Group | 🇨🇭 Switzerland |
| Bina.az | Kaspi.kz | 🇰🇿 Kazakhstan |
| Mercado Libre Classifieds | MercadoLibre | 🇺🇾 Uruguay |
| realtor.com | News Corp | 🇺🇸 United States |
| OneRoof | NZME | 🇳🇿 New Zealand |
| Property.com.au | REA Group | 🇦🇺 Australia |
About the owner: CoStar
CoStar is a publicly listed company headquartered in Arlington, United States. Brandtree records 6 brands under its control, and it is listed as NASDAQ: CSGP.
CoStar Group is an American commercial and residential real estate information and marketplace company, incorporated in Delaware and based at 1201 Wilson Boulevard, Arlington, Virginia, with its shares on the Nasdaq Global Select Market. Its core business is the subscription CoStar database, but its 10-K for 2025 groups its portals into a commercial segment (LoopNet and others) and a residential segment (Apartments.com, Homes.com, Land.com, Domain and OnTheMarket). It bought OnTheMarket in December 2023 and Domain in August 2025, and also owns Matterport, Visual Lease, BizBuySell and Ten-X.
🇺🇸 LoopNet and other American brands
Brandtree records a controlling owner for 2,399 brands that began in the United States. 461 of them (19%) are now controlled by a company headquartered in another country; LoopNet is not one of them.
Frequently asked questions
Who is the parent company of LoopNet?
The parent company of LoopNet is CoStar, a publicly listed company headquartered in the United States.
Is LoopNet American?
Yes. LoopNet originated in the United States and its owner, CoStar, is also headquartered in the United States.
Is LoopNet still owned by CoStar?
Yes. As of 9 October 2026, LoopNet is still owned by CoStar. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] CoStar Group, Inc. Annual Report on Form 10-K filed 2026-02-26 — SEC EDGAR, SEC Form 10-K, published 26 February 2026; retrieved 2 October 2026.
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