About CoStar

You're one step ahead.

At CoStar, we’re in the business of equipping our clients with what they need to succeed.

We create opportunity through a combination of reliable tools, resources, and deep understanding on over 5 million commercial real estate properties in today’s market. Find relevant information, meet the right people, and make the deals that are critical to your success.

Whatever your business, we’re here to help you reach your goals, and keep you moving ahead with confidence.

We’re number 1 for one very simple reason, and it’s our research. No one else can do what we do.
Simon Law
Vice President, Research


Researched and verified information is what has always set CoStar apart. It is the basis of everything we do. Our ability to deliver accurate and trusted information to our clients has won us the business of virtually all the leading commercial real estate firms through out the U.S. and U.K.

5.1 million
data changes per day
47,000 calls
a day to brokers, owners, developers and other commercial real estate professionals
properties canvassed nationwide annually
14 million
digital photographs taken annually

The Research Platform:

With over $1 billion invested in research operations, we've built and maintained the industry’s most comprehensive database of commercial real estate information.

The Research Team:

Our highly trained research associates verify the accuracy of hundreds of details on the properties in CoStar's database. By interviewing everyone from brokers to owners and property managers, we make sure our data is up-to-date, trusted and reliable.

The Result:

You’re prepared with the comprehensive, accurate and timely information you need to stay competitive, win clients and close deals.

See how our research keeps you ready for what’s next.

Spotlight on Power Brokers

Each year, we recognize the top commercial real estate brokers and brokerage firms with the Power Broker Awards.

These awards are reserved for those who have proven themselves as the most effective and reliable in the United States, Canada and the UK.

Discover who changed the game last year, and find out who’s on our radar now.

Learn more about the Power Broker Awards.

Interested in working at CoStar?

If you’re in the market, we’re always looking for qualified and driven individuals to join our team.

From accounting, research and sales, to marketing and product development, we’re looking for those who want to become experts in our industry, help build our company, and move closer to achieving their personal and professional goals.

Learn more about CoStar Careers.