---
title: "CoStar Group brands and Share of Search"
description: "The brands CoStar Group markets in the United States, and where to find each one's branded demand. Demand belongs to each brand, so the brands are never added together."
canonical: "https://gobrandwave.com/demand/us/companies/costar"
publisher: "Brandwave"
---

# CoStar Group brands and Share of Search

The brands CoStar Group markets in the United States, and where to find each one's branded demand. Demand belongs to each brand, so the brands are never added together.

## Key facts

- **Company**: CoStar Group
- **Market**: United States
- **Brands tracked**: 2
- **Measured through**: Sep 2026
- **Combined demand figure**: Not published; demand belongs to each brand

## Brands this company owns

| Brand | Competitive set | Rank | Share of Search | Estimated monthly branded searches |
| --- | --- | --- | --- | --- |
| Apartments.com | Real estate marketplaces | 6 | 0.82% | 201K |
| LoopNet | Real estate marketplaces | 5 | 1.5% | 368K |

- [Apartments.com](/demand/us/brands/apartments-com)
- [LoopNet](/demand/us/brands/loopnet)

## Brand competitors

- [Zillow](/demand/us/brands/zillow): 1st place in US Real estate marketplaces estimated Share of Search at 83.1% in Sep 2026.
- [Redfin](/demand/us/brands/redfin): 2nd place in US Real estate marketplaces estimated Share of Search at 7.5% in Sep 2026.
- [Realtor.com](/demand/us/brands/realtor-com): 3rd place in US Real estate marketplaces estimated Share of Search at 4.1% in Sep 2026.

## Methodology

- [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Cite this page

Brandwave. "CoStar Group brands and Share of Search". https://gobrandwave.com/demand/us/companies/costar

This page is also available as HTML at https://gobrandwave.com/demand/us/companies/costar. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.