Company lists · Data refreshed September 2026

Top 25 Real estate collaboration platforms based in the United States

Name: Real estate collaboration platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 3,690 companies tracked

RevenueBase identified 3,690 real estate collaboration platforms headquartered in the United States as of September 2026 and tracks 159,870 professional contacts across them, including 50,409 with verified work emails. New York is the largest hub.

This list covers real estate collaboration 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 29, 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 29, 2026 86% judged on-target in blind review

3,690Companies

159,870Contacts tracked

50,409Verified emails

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The 25 largest real estate collaboration platforms based in the United States

Ranked by team size

Top 25 of 3,690 real estate collaboration platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to real estate collaboration 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Compass	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	n/a	28,842 contacts →
	Strong evidence “Compass is a real estate technology company with a powerful end-to-end platform that supports the entire buying and selling workflow.” Source: RevenueBase Database · checked Sep 29, 2026
2	Douglas Elliman Real Estate	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	5,001-10,000	9,091 contacts →
	Indirect evidence “Douglas Elliman Inc.(NYSE: DOUG, “Douglas Elliman”) owns Douglas Elliman Realty, LLC, which is one of the largest residential brokerage companies in the United States with…” Source: RevenueBase Database · checked Sep 29, 2026
3	REAL	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	n/a	7,390 contacts →
	Strong evidence “Real is the fastest growing publicly-traded real estate tech brokerage.” Source: RevenueBase Database · checked Sep 29, 2026
4	Zillow	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 29, 2026	5,001-10,000	7,020 contacts →
	Indirect evidence “Having a place to call your own changes everything.” Source: RevenueBase Database · checked Sep 29, 2026
5	YARDI	Strong evidence	Santa Barbara, CA, United StatesHQ checked Sep 29, 2026	10001+	6,294 contacts →
	Strong evidence “Since 1984, Yardi has grown into the leading provider of high-performance software for the real estate industry.” Source: RevenueBase Database · checked Sep 29, 2026
6	Costar Group	Strong evidence	Arlington, VA, United StatesHQ checked Sep 29, 2026	5,001-10,000	5,803 contacts →
	Strong evidence “CoStar Group (NASDAQ: CSGP) is a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology.” Source: RevenueBase Database · checked Sep 29, 2026
7	Homesmart	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 29, 2026	10001+	5,070 contacts →
	Strong evidence “HomeSmart is a revolutionary real estate enterprise powered by our proprietary end-to-end technology platform.” Source: RevenueBase Database · checked Sep 29, 2026
8	Fathom Realty	Strong evidence	Cary, NC, United StatesHQ checked Sep 29, 2026	10001+	4,277 contacts →
	Strong evidence “Fathom Realty is a national, cloud-based, full-service real estate brokerage powered by its technology platform.” Source: RevenueBase Database · checked Sep 29, 2026
9	OWN	Indirect evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	n/a	3,985 contacts →
	Indirect evidence “OWN Realty is located on the American Riviera, more specifically, Brickell Avenue in Miami, Florida, an area known as the second largest financial district in the United States…” Source: RevenueBase Database · checked Sep 29, 2026
10	realtor.com	Indirect evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,810 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 29, 2026
11	United Real Estate	Strong evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	n/a	1,985 contacts →
	Strong evidence “United Real Estate was created to solve the challenges faced by Agents and Brokers in maintaining profitability in an increasingly competitive marketplace.” Source: RevenueBase Database · checked Sep 29, 2026
12	Ziprealty	Strong evidence	Emeryville, CA, United StatesHQ checked Sep 29, 2026	n/a	1,825 contacts →
	Strong evidence “ZipRealty is a leading national real estate brokerage and provider of proprietary technology and online marketing tools for the brokerage industry.” Source: RevenueBase Database · checked Sep 29, 2026
13	Appfolio	Strong evidence	Santa Barbara, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,776 contacts →
	Strong evidence “AppFolio (NASDAQ: APPF) AppFolio is the technology leader powering the future of the real estate industry.” Source: RevenueBase Database · checked Sep 29, 2026
14	NEW Western	Strong evidence	Irving, TX, United StatesHQ checked Sep 29, 2026	201-500	1,320 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 29, 2026
15	Serhant	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	n/a	1,240 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
16	MY Home Group	Strong evidence	Scottsdale, AZ, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,193 contacts →
	Strong evidence “In 2025, My Home Group proudly marks 20 years of empowering real estate entrepreneurs in Arizona.” Source: RevenueBase Database · checked Sep 29, 2026
17	homes.com	Indirect evidence	Richmond, VA, United StatesHQ checked Sep 29, 2026	501-1,000	1,042 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 29, 2026
18	Avanti WAY Realty	Strong evidence	Doral, FL, United StatesHQ checked Sep 29, 2026	n/a	1,027 contacts →
	Strong evidence “More than a company, Avanti Way is a way of life for real estate agents.” Source: RevenueBase Database · checked Sep 29, 2026
19	Luxury Presence	Strong evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	501-1,000	774 contacts →
	Strong evidence “Luxury Presence is the growth platform for real estate's top performers.” Source: RevenueBase Database · checked Sep 29, 2026
20	Worth Clark Realty	Strong evidence	Chesterfield, MO, United StatesHQ checked Sep 29, 2026	1,001-5,000	715 contacts →
	Strong evidence “Worth Clark Realty is a unique agent-owned real estate brokerage enhanced by technology and driven by relationships.” Source: RevenueBase Database · checked Sep 29, 2026
21	Lone Wolf Technologies	Strong evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	201-500	700 contacts →
	Strong evidence “At Lone Wolf Technologies, we believe making tech for real estate is about much more than just making the best tools.” Source: RevenueBase Database · checked Sep 29, 2026
22	Realty Of America	Strong evidence	Berwyn, IL, United StatesHQ checked Sep 29, 2026	n/a	691 contacts →
	Strong evidence “REALTY OF AMERICA is a nationwide real estate brokerage founded on the principles of agent empowerment, community, and innovation.” Source: RevenueBase Database · checked Sep 29, 2026
23	EXP Commercial	Strong evidence	Bellingham, WA, United StatesHQ checked Sep 29, 2026	501-1,000	651 contacts →
	Strong evidence “eXp Commercial is a nationwide virtual commercial real estate brokerage and subsidiary of eXp World Holdings, Inc.(Nasdaq: EXPI).” Source: RevenueBase Database · checked Sep 29, 2026
24	Realty Austin	Strong evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	201-500	639 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 29, 2026
25	RE MAX Northwest	Strong evidence	Seattle, WA, United StatesHQ checked Sep 29, 2026	201-500	616 contacts →
	Strong evidence “RE/MAX Northwest is the largest RE/MAX in the state of Washington and on the cutting edge of the new real estate industry.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: real estate collaboration platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names real estate collaboration platforms.
Partial evidence: Its own public description names part of real estate collaboration platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name real estate collaboration platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 3,690 real estate collaboration platforms based in the United States

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

As of Sep 29, 2026

31.5%Verified-email coverage

43.3Average contacts per company

1-10Median size (employees)

6.3%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

2,092

11-50

1,039

51-200

358

201-500

107

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,690 companies.

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 collaboration 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 collaboration 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 collaboration 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 collaboration 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, 50,409 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 29, 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.

Real estate collaboration platforms by metro

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 collaboration 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 collaboration platforms are there based in the United States?

RevenueBase identified 3,690 real estate collaboration 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 collaboration platforms?

New York leads with 231 headquartered companies, followed by Miami (138) and San Francisco (120).

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 50,409 verified decision-maker contacts tracked across these 3,690 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 29, 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.