Company lists · Data refreshed September 2026

Top 25 Real estate client support outsourcing companies based in the United States

Name: Real estate client support outsourcing 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 29, 2026 14,197 companies tracked

RevenueBase identified 14,197 real estate client support outsourcing companies headquartered in the United States as of September 2026 and tracks 361,076 professional contacts across them, including 82,694 with verified work emails. Miami is the largest hub.

This list covers real estate client support outsourcing 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, 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

14,197Companies

361,076Contacts tracked

82,694Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest real estate client support outsourcing companies based in the United States

Ranked by team size

Top 25 of 14,197 real estate client support outsourcing companies 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 client support outsourcing companies: 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	Coldwell Banker	Strong evidence	Madison, NJ, United StatesHQ checked Sep 29, 2026	10001+	33,609 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 29, 2026
2	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
3	Weichert, Realtors	Strong evidence	Morris Plains, NJ, United StatesHQ checked Sep 29, 2026	10001+	10,646 contacts →
	Strong evidence “Since 1969, Weichert Realtors has grown from a single office into one of the nation's leading providers of real estate and related services.” Source: RevenueBase Database · checked Sep 29, 2026
4	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
5	Howard Hanna Real Estate Services	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 29, 2026	5,001-10,000	7,846 contacts →
	Strong evidence “The Hanna Family of Companies proudly provide real estate, title, insurance and mortgage services to clients across 13 states.” Source: RevenueBase Database · checked Sep 29, 2026
6	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
7	Berkshire Hathaway Homeservices California Properties	Strong evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	5,451 contacts →
	Strong evidence “Proud to be part of Real Estate's Forever Brand.#ReputationMatters LIC# 01317331 At Berkshire Hathaway HomeServices California Properties we believe in putting you first.” Source: RevenueBase Database · checked Sep 29, 2026
8	Properties	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,691 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 29, 2026
9	The Keyes Company	Partial evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,528 contacts →
	Partial evidence “For property buyers, sellers and agents who need support to help reach their goals.” Source: RevenueBase Database · checked Sep 29, 2026
10	Anywhere Real Estate INC	Strong evidence	Madison, NJ, United StatesHQ checked Sep 29, 2026	5,001-10,000	3,290 contacts →
	Strong evidence “Anywhere Real Estate Inc.(NYSE: HOUS) is moving the real estate industry to what's next.” Source: RevenueBase Database · checked Sep 29, 2026
11	Baird & Warner	Strong evidence	Schaumburg, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,160 contacts →
	Strong evidence “Established in 1855, family-owned Baird & Warner is Chicagoland’s largest independent real estate services company.” Source: RevenueBase Database · checked Sep 29, 2026
12	Intero Real Estate Services	Indirect evidence	Cupertino, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,831 contacts →
	Indirect evidence “It was 2002.” Source: RevenueBase Database · checked Sep 29, 2026
13	Advanced Call Center Technologies, LLC	Indirect evidence	Berwyn, PA, United StatesHQ checked Sep 29, 2026	5,001-10,000	2,774 contacts →
	Indirect evidence “Advanced Call Center Technologies, LLC (ACT) is a premier provider of domestic (USA), near shore and far shore outsourced call center services to the financial services, mortgage…” Source: RevenueBase Database · checked Sep 29, 2026
14	Remax Real Estate Group	Strong evidence	Erie, PA, United StatesHQ checked Sep 29, 2026	n/a	2,681 contacts →
	Strong evidence “RE/MAX Real Estate Group is recognized as one of the leading real estate companies in Northwestern Pennsylvania with the most experienced and productive sales force in the region.” Source: RevenueBase Database · checked Sep 29, 2026
15	Watson Realty Corp	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,563 contacts →
	Indirect evidence “Since our humble beginnings as a single office in 1965, Watson Realty Corp.” Source: RevenueBase Database · checked Sep 29, 2026
16	Firstteam	Strong evidence	Newport Beach, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,537 contacts →
	Strong evidence “FirstTeam® is a premier real estate brokerage and founding member of Leading Real Estate Companies of the World® (LeadingRE), boasting a near 50-year legacy of excellence & market…” Source: RevenueBase Database · checked Sep 29, 2026
17	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
18	Hunt Real Estate ERA	Strong evidence	Depew, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,817 contacts →
	Strong evidence “A leader in the residential real estate industry with over 100 years of experience, the HUNT brand is recognized for consumer-oriented real estate products and services and some…” Source: RevenueBase Database · checked Sep 29, 2026
19	Support Services Group	Partial evidence	Waco, TX, United StatesHQ checked Sep 29, 2026	5,001-10,000	1,710 contacts →
	Partial evidence “Support Services Group (SSG) helps businesses accelerate growth and earn customers for life through high-touch, outsourced engagement center services.” Source: RevenueBase Database · checked Sep 29, 2026
20	LA Rosa Realty	Indirect evidence	Celebration, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,478 contacts →
	Indirect evidence “LaRosaRealty.com At La Rosa Realty, LLC, we believe in agent success, and helping Agents "GROW THEIR BUSINESS".” Source: RevenueBase Database · checked Sep 29, 2026
21	Century 21 Affiliated	Strong evidence	Madison, WI, United StatesHQ checked Sep 29, 2026	201-500	1,380 contacts →
	Strong evidence “We’re CENTURY 21 Affiliated, a real estate organization producing leading edge real estate services for the dynamic real estate market.” Source: RevenueBase Database · checked Sep 29, 2026
22	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
23	Russ Lyon Sotheby's International Realty	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,197 contacts →
	Indirect evidence “Russ Lyon Sotheby's International Realty has gathered realty craftsmen dedicated to the ideals of integrity and professionalism.” Source: RevenueBase Database · checked Sep 29, 2026
24	Berkshire Hathaway Homeservices Penfed Realty	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,179 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 29, 2026
25	Signature Premier Properties	Partial evidence	East Northport, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,101 contacts →
	Partial evidence “Co-owners Peter Morris and Kathy Viard share a visionary strategy focused on clients, community and carefully targeted expansion that has propelled us into Long Island’s…” 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 client support outsourcing companies. 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 client support outsourcing companies.
Partial evidence: Its own public description names part of real estate client support outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name real estate client support outsourcing companies. 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 14,197 real estate client support outsourcing companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 82,694 reachable decision-makers.

Free signup · no credit card

View the full list →

Real estate client support outsourcing companies based in the United States at a glance

As of Sep 29, 2026

22.9%Verified-email coverage

25.4Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · Miami

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

8,758

11-50

3,725

51-200

1,094

201-500

326

501-1,000

110

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 14,197 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 client support outsourcing companies, 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 client support outsourcing companies”. 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 client support outsourcing companies), 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 client support outsourcing 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 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, 82,694 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 client support outsourcing companies 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 client support outsourcing companies, 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 client support outsourcing companies are there based in the United States?

RevenueBase identified 14,197 real estate client support outsourcing 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 client support outsourcing companies?

Miami leads with 350 headquartered companies, followed by New York (254) and Houston (196).

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 82,694 verified decision-maker contacts tracked across these 14,197 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.

Ready to reach these companies? Verified emails and direct dials for all 14,197 real estate client support outsourcing companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Real estate client support outsourcing companies by geography

Browse the directory

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.