CoStar Group

costargroup.com · Washington, United States of America

CoStar Group is a commercial real estate information, analytics, and online marketplace company that provides data, research, software, and listing platforms to property owners, investors, brokers, lenders, and tenants. It aggregates and analyzes property, lease, sales, and market data and monetizes this through subscription-based SaaS products and advertising on its online marketplaces such as CoStar, LoopNet, and Apartments.com. The company primarily serves the commercial and multifamily real estate sectors in North America and other international markets.

  • Business Intelligence & Dashboards
  • Data Warehousing & Lakes
Revenue
$2.5B
Employees
6,000
Founded
1987
Headquarters
Washington, United States of America

What 57 Arbolus experts think of CoStar Group

NPS scores skew high, with most experts rating CoStar between 7 and 10, underlining broad satisfaction on data quality and operational impact. Renewal intent is positive among large spenders and established users, but some mid-tier and new adopters show uncertainty or cost-driven churn risk. Stickiness is strongest for organizations deeply embedded in market analytics workflows, especially in high-value segments. Key themes driving sentiment include platform breadth, operational impact, high costs, licensing inflexibility, and rising interest in AI as a future alternative.Overall Customer Sentiment: Positive

Who reviewed CoStar Group

Total customers 57 55 current · 2 former
Reviews growth +38 in six months
Seniority of respondents
  • C-Suite 62% (35)
  • Director 25% (14)
  • Manager 13% (7)
Operations Manager C-Suite NPS 9
Revenue Partner Director NPS 8 Will renew
Revenue Leader C-Suite NPS 10 Will renew

Employer names and spend open in the full report, along with the other 54 customers.

Everything 57 customers told us about CoStar Group.

Employer names, spend, renewal intent and every written answer behind the numbers on this page.

Open the full report

Sentiment

31 Net Promoter Score, from 57 scored reviews
  • Promoters 25
  • Passives 25
  • Detractors 7

Cumulative NPS by month

+0 over 6 months
  • May 8
  • Jun 8
  • Jul 8
  • Aug 8
  • Sep 8
  • Oct 8

Net Promoter Score across 7 reviews, accumulated up to each month. Category median 23 across 7 companies.

Praised

  • AI-Driven Feature Expansion
  • Flexible Licensing and Cost Management
  • Greater Student Housing Analytics
  • Breadth and Speed of Data

Criticised

  • Data Gaps in Niche Markets
  • Limited AI and Automation
  • High Cost and Licensing Friction
  • Competitive Migration on Price and Flexibility

What customers say

Breadth and Speed of Data
“I leverage CoStar for its unparalleled speed in delivering nearly accurate real estate information and deal data, enabling faster operations and decision-making not available elsewhere.”
Operational Efficiency Gains
“The platform directly supports operational efficiency and productivity with easy implementation, strong user adoption, and robust integration, making it a long-term solution for our business growth.”
Critical Market Intelligence
“Its property, market, and transaction data are indispensable for market analysis, underwriting, and competitive positioning—supporting both strategic and day-to-day business priorities.”

Renewal intent

Plan to renew 74%
  • Will renew 20
  • Undecided 5
  • Not renewing 2

Plan to renew, by seniority

  • C-Suite 87% 15 answers
  • Director 71% 7 answers
  • Manager 50% 4 answers
  • Not specified 0% 1 answer
  • 8.3/10 Average score from customers who will renew
  • 8/10 Average score from undecided customers
  • 4/10 Average score from customers not renewing

Top alternatives

Most weighed by CoStar Group customers

Report

For people who use CoStar Group

Do you use CoStar Group at work?

Share your software review and get matched to paid projects. Arbolus pays you every time a client reads your review.

  • 57 customers of CoStar Group have already contributed
Share your experience

Takes a few minutes. Your identity stays anonymous.