Cubbie's Holiday Party & Conference December 10, 2026 in San Francisco Get tickets

CoStar Group is the leading provider of commercial real estate information, analytics, and online marketplaces including Apartments.com and LoopNet.

Headquarters
Washington, D.C.
Company size
5,001-10,000 employees
Founded
1987

Buyer research

Unlock the full CoStar profile

Create a free account and complete onboarding for buyer research and procurement details.

Checking profile access…