Company lists · Data refreshed September 2026

Top 25 Real estate advertising platforms based in the United States

RevenueBase identified 2,977 real estate advertising platforms headquartered in the United States as of September 2026 and tracks 104,211 professional contacts across them, including 37,331 with verified work emails and 50,396 with mobile numbers. New York is the largest hub.

This list covers real estate advertising platforms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
2,977Companies
104,211Contacts tracked
37,331Verified emails
50,396Mobile numbers
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The 25 largest real estate advertising platforms based in the United States

Ranked by team size
Top 25 of 2,977 real estate advertising platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to real estate advertising platforms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceNew York, NY, United StatesHQ checked Sep 5, 2026n/a28,842 contacts →

“Compass is a real estate technology company with a powerful end-to-end platform that supports the entire buying and selling workflow.”

Source: company website · checked Sep 5, 2026
2Strong evidenceNew York, NY, United StatesHQ checked Sep 5, 2026n/a7,390 contacts →

Real is the fastest growing publicly-traded real estate tech brokerage.”

Source: company website · checked Sep 5, 2026
3Indirect evidenceSeattle, WA, United StatesHQ checked Sep 5, 20265,001-10,0007,020 contacts →

“Having a place to call your own changes everything.”

Source: company website · checked Sep 5, 2026
4Strong evidenceArlington, VA, United StatesHQ checked Sep 5, 20265,001-10,0005,803 contacts →

“CoStar Group (NASDAQ: CSGP) is a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology.”

Source: company website · checked Sep 5, 2026
5Indirect evidenceSeattle, WA, United StatesHQ checked Sep 5, 20261,001-5,0005,304 contacts →

“Redfin is now powered by Rocket.”

Source: company website · checked Sep 5, 2026
6Indirect evidenceAustin, TX, United StatesHQ checked Sep 5, 20261,001-5,0002,810 contacts →

“Realtor.com® is the trusted resource for home buyers, sellers and dreamers, offering the most comprehensive source of for-sale properties, among competing national sites, and the…”

Source: company website · checked Sep 5, 2026
7Strong evidenceEmeryville, CA, United StatesHQ checked Sep 5, 2026n/a1,825 contacts →

“ZipRealty is a leading national real estate brokerage and provider of proprietary technology and online marketing tools for the brokerage industry.”

Source: company website · checked Sep 5, 2026
8Strong evidenceSanta Barbara, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,776 contacts →

“AppFolio (NASDAQ: APPF) AppFolio is the technology leader powering the future of the real estate industry.”

Source: company website · checked Sep 5, 2026
9Strong evidenceScottsdale, AZ, United StatesHQ checked Sep 5, 202610001+1,719 contacts →

“HomeSmart is a revolutionary real estate enterprise powered by our proprietary end-to-end technology platform.”

Source: company website · checked Sep 5, 2026
10Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,399 contacts →

“Founded in 2014, Opendoor’s mission is to power life’s progress one move at a time.”

Source: company website · checked Sep 5, 2026
11Strong evidenceIrving, TX, United StatesHQ checked Sep 5, 2026201-5001,320 contacts →

“New Western is the nation’s largest private marketplace for investment real estate, built to make real estate investing more accessible while helping solve one of the biggest…”

Source: company website · checked Sep 5, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 2026n/a1,240 contacts →
Source: company website · checked Sep 5, 2026
13Indirect evidenceRichmond, VA, United StatesHQ checked Sep 5, 2026501-1,0001,042 contacts →

“Homes.com is the only portal built on the principle of “Your Listing, Your Lead,” which means we always prominently display the listing agent’s name, photo, and brokerage on their…”

Source: company website · checked Sep 5, 2026
14Strong evidenceAustin, TX, United StatesHQ checked Sep 5, 2026501-1,000774 contacts →

“Luxury Presence is the growth platform for real estate's top performers.”

Source: company website · checked Sep 5, 2026
15Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 5, 2026501-1,000752 contacts →

“Apartments.com is the place to find a place.”

Source: company website · checked Sep 5, 2026
16Strong evidenceAustin, TX, United StatesHQ checked Sep 5, 2026201-500639 contacts →

“At Realty Austin Compass, we believe real estate is more than just a transaction-it’s about your journey, your dreams, and finding your place in the world.”

Source: company website · checked Sep 5, 2026
17Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 5, 2026501-1,000619 contacts →

“Pacific Sotheby’s International Realty provides its agents and their clients with extensive marketing programs and targeted local, national and international media partnerships to…”

Source: company website · checked Sep 5, 2026
18Indirect evidenceSeattle, WA, United StatesHQ checked Sep 5, 20261,001-5,000601 contacts →

“We have combined RealEstate.com with Zillow.”

Source: company website · checked Sep 5, 2026
19Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 5, 2026501-1,000594 contacts →
Source: company website · checked Sep 5, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 5, 2026201-500591 contacts →

“Orchard is radically simplifying the way people buy and sell their homes.”

Source: company website · checked Sep 5, 2026
21Strong evidenceRichmond, VA, United StatesHQ checked Sep 5, 20261,001-5,000568 contacts →

“LoopNet is the most visited commercial real estate marketplace, covering For Sale and For Lease properties across all commercial property categories.”

Source: company website · checked Sep 5, 2026
22Indirect evidenceSanta Clara, CA, United StatesHQ checked Sep 5, 20261,001-5,000523 contacts →
Source: company website · checked Sep 5, 2026
23Indirect evidenceChicago, IL, United StatesHQ checked Sep 5, 2026201-500509 contacts →

“Expect the exceptional.”

Source: company website · checked Sep 5, 2026
24Strong evidenceLewisville, TX, United StatesHQ checked Sep 5, 20261,001-5,000501 contacts →

“We move real estate forward.”

Source: company website · checked Sep 5, 2026
25Strong evidenceCanton, MD, United StatesHQ checked Sep 5, 2026501-1,000478 contacts →

“As a licensed brokerage in MD, PA, DC, VA, and DE, we proudly serve our vibrant communities and offer expert guidance for your real estate needs.”

Source: company website · checked Sep 5, 2026

Showing 25 of 2,977 real estate advertising platforms based in the United States

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Real estate advertising platforms based in the United States at a glance

As of Sep 5, 2026
35.8%Verified-email coverage
48.4%Mobile-number coverage
35.0Average contacts per company
1-10Median size (employees)
4.0%Largest-city concentration · New York
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
1,893
11-50
759
51-200
200
201-500
59
501-1,000
22
1,001-5,000
17
5,001-10,000
3
10001+
4

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among real estate advertising platforms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “real estate advertising platforms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names real estate advertising platforms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among real estate advertising platforms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 37,331 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names real estate advertising platforms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many real estate advertising platforms are there based in the United States?

RevenueBase identified 2,977 real estate advertising platforms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Compass, headquartered in New York, tops this list with the largest team on record.

Which city has the most real estate advertising platforms?

New York leads with 119 headquartered companies, followed by Miami (86) and Austin (61).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 37,331 verified decision-maker contacts tracked across these 2,977 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.