Company lists · Data refreshed September 2026

Top 25 Real estate transaction software companies based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 3,574 companies tracked

RevenueBase identified 3,574 real estate transaction software companies headquartered in the United States as of September 2026 and tracks 189,852 professional contacts across them, including 54,369 with verified work emails and 92,182 with mobile numbers. New York is the largest hub.

This list covers real estate transaction software companies 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, how directly it supports the match, 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 SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

3,574Companies

189,852Contacts tracked

54,369Verified emails

92,182Mobile numbers

Explore all 3,574 companies → Free signup · no credit card · 500 free credits

The 25 largest real estate transaction software companies based in the United States

Ranked by team size

Top 25 of 3,574 real estate transaction software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names real estate transaction software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Coldwell BankerStrong evidence	Madison, NJ, United StatesHQ checked Sep 5, 2026	10001+	33,609
	“Welcome to Coldwell Banker Real Estate LLC, a company founded in 1906 on a commitment to professionalism and customer service which remains the cornerstone of our business…” Source: company website · checked Sep 5, 2026
2	CompassStrong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	n/a	28,842
	“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
3	Douglas Elliman Real EstateIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	5,001-10,000	9,091
	“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: company website · checked Sep 5, 2026
4	Howard Hanna Real Estate ServicesStrong evidence	Pittsburgh, PA, United StatesHQ checked Sep 5, 2026	5,001-10,000	7,846
	“The Hanna Family of Companies proudly provide real estate, title, insurance and mortgage services to clients across 13 states.” Source: company website · checked Sep 5, 2026
5	REALStrong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	n/a	7,390
	“Real is the fastest growing publicly-traded real estate tech brokerage.” Source: company website · checked Sep 5, 2026
6	ZillowIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	5,001-10,000	7,020
	“Having a place to call your own changes everything.” Source: company website · checked Sep 5, 2026
7	YARDIStrong evidence	Santa Barbara, CA, United StatesHQ checked Sep 5, 2026	10001+	6,294
	“Since 1984, Yardi has grown into the leading provider of high-performance software for the real estate industry.” Source: company website · checked Sep 5, 2026
8	HomesmartStrong evidence	Phoenix, AZ, United StatesHQ checked Sep 5, 2026	10001+	5,070
	“HomeSmart is a revolutionary real estate enterprise powered by our proprietary end-to-end technology platform.” Source: company website · checked Sep 5, 2026
9	PropertiesStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	1,001-5,000	3,691
	“properties Christie's International Real Estate offers local homebuyers and sellers the highest level of service for their real estate needs through our award-winning sales and…” Source: company website · checked Sep 5, 2026
10	Anywhere Real Estate INCStrong evidence	Madison, NJ, United StatesHQ checked Sep 5, 2026	5,001-10,000	3,290
	“Anywhere Real Estate Inc.(NYSE: HOUS) is moving the real estate industry to what's next.” Source: company website · checked Sep 5, 2026
11	Intero Real Estate ServicesIndirect evidence	Cupertino, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,831
	“It was 2002.” Source: company website · checked Sep 5, 2026
12	Watson Realty CorpIndirect evidence	Jacksonville, FL, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,563
	“Since our humble beginnings as a single office in 1965, Watson Realty Corp.” Source: company website · checked Sep 5, 2026
13	United Real EstateStrong evidence	Dallas, TX, United StatesHQ checked Sep 5, 2026	n/a	1,985
	“United Real Estate was created to solve the challenges faced by Agents and Brokers in maintaining profitability in an increasingly competitive marketplace.” Source: company website · checked Sep 5, 2026
14	ZiprealtyStrong evidence	Emeryville, CA, United StatesHQ checked Sep 5, 2026	n/a	1,825
	“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
15	OpendoorIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,399
	“Founded in 2014, Opendoor’s mission is to power life’s progress one move at a time.” Source: company website · checked Sep 5, 2026
16	Century 21 AffiliatedStrong evidence	Madison, WI, United StatesHQ checked Sep 5, 2026	201-500	1,380
	“We’re CENTURY 21 Affiliated, a real estate organization producing leading edge real estate services for the dynamic real estate market.” Source: company website · checked Sep 5, 2026
17	Russ Lyon Sotheby's International RealtyIndirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,197
	“Russ Lyon Sotheby's International Realty has gathered realty craftsmen dedicated to the ideals of integrity and professionalism.” Source: company website · checked Sep 5, 2026
18	Berkshire Hathaway Homeservices Penfed RealtyStrong evidence	Alexandria, VA, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,179
	“Berkshire Hathaway HomeServices PenFed Realty is a full-service real estate company, with real estate professionals and more than 50 offices ready to assist our clients with…” Source: company website · checked Sep 5, 2026
19	Huff RealtyStrong evidence	Fort Mitchell, KY, United StatesHQ checked Sep 5, 2026	501-1,000	817
	“HUFF REALTY is a company dedicated to excellence; using innovative real estate tools and technology to provide the highest quality services to our clients; above all preserving a…” Source: company website · checked Sep 5, 2026
20	RE MAX GoldIndirect evidence	Rancho Cordova, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	769
	“Founded in 1994 with two offices and 40 agents, REMAX Gold has grown into Gold nation with over 2,900 of the industry’s most productive agents at over 130 locations throughout…” Source: company website · checked Sep 5, 2026
21	Berkshire Hathaway Homeservices Homesale RealtyIndirect evidence	Lancaster, PA, United StatesHQ checked Sep 5, 2026	1,001-5,000	725
	“Homesale Realty offers customers a menu of services including realty, mortgage, settlement, insurance, warranty, relocation, property management, builder/developer services…” Source: company website · checked Sep 5, 2026
22	NtrustStrong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	707
	“NTrust Infotech is a real estate lease administration solution provider.” Source: company website · checked Sep 5, 2026
23	Lone Wolf TechnologiesStrong evidence	Dallas, TX, United StatesHQ checked Sep 5, 2026	201-500	700
	“At Lone Wolf Technologies, we believe making tech for real estate is about much more than just making the best tools.” Source: company website · checked Sep 5, 2026
24	QualiaStrong evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	501-1,000	554
	“Qualia is the connected title, escrow, and closing technology infrastructure built for real estate and mortgage professionals.” Source: company website · checked Sep 5, 2026
25	Walzel Properties, LLCStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	n/a	534
	“Walzel Properties, LLC is a real estate company based out of 15420 Ridge Park Drive, Texas, United States.” Source: company website · checked Sep 5, 2026

Showing 25 of 3,574 real estate transaction software companies based in the United States

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Real estate transaction software companies based in the United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 105 HQs

92,182Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

2,104

11-50

976

51-200

287

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

48,679

31–60

3,091

61–90

90–180

180+

2,504

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 transaction software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 transaction software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among real estate transaction software companies, 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 an evidence 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, 54,369 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.

Real estate transaction software companies by metro

Frequently asked

How many real estate transaction software companies are there based in the United States?

RevenueBase identified 3,574 real estate transaction software companies 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?

Coldwell Banker, headquartered in Madison, tops this list with the largest team on record.

Which city has the most real estate transaction software companies?

New York leads with 105 headquartered companies, followed by Austin (67) and Houston (59).

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 54,369 verified decision-maker contacts tracked across these 3,574 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 SmartSearch, 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.