Company lists · Data refreshed September 2026

Top 25 Real estate research companies based in the United States

Name: Real estate research 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 21, 2026 3,554 companies tracked

RevenueBase identified 3,554 real estate research companies headquartered in the United States as of September 2026 and tracks 64,935 professional contacts across them, including 21,122 with verified work emails. New York is the largest hub.

This list covers real estate research 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 21, 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 21, 2026 86% judged on-target in blind review

3,554Companies

64,935Contacts tracked

21,122Verified emails

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The 25 largest real estate research companies based in the United States

Ranked by team size

Top 25 of 3,554 real estate research companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to real estate research 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	Douglas Elliman Real Estate	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
2	Costar Group	Strong evidence	Arlington, VA, United StatesHQ checked Sep 21, 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 21, 2026
3	Anywhere Real Estate INC	Strong evidence	Madison, NJ, United StatesHQ checked Sep 21, 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 21, 2026
4	ONE Sotheby's International Realty	Strong evidence	Miami, FL, United StatesHQ checked Sep 21, 2026	501-1,000	1,437 contacts →
	Strong evidence “ONE Sotheby’s International Realty is South Florida’s premier source for luxury real estate and development opportunities.” Source: RevenueBase Database · checked Sep 21, 2026
5	Century 21 Affiliated	Strong evidence	Madison, WI, United StatesHQ checked Sep 21, 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 21, 2026
6	Russ Lyon Sotheby's International Realty	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 21, 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 21, 2026
7	Berkshire Hathaway Homeservices Penfed Realty	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 21, 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 21, 2026
8	Carpenter Realtors	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 2026	501-1,000	1,075 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
9	Jack Conway & Co., INC	Strong evidence	Hanover, MA, United StatesHQ checked Sep 21, 2026	501-1,000	810 contacts →
	Strong evidence “In 1956 Jack Conway opened his doors with a small real estate company in Massachusetts, with the purpose of serving its neighbors ably, fairly and honestly.” Source: RevenueBase Database · checked Sep 21, 2026
10	Mccolly Real Estate	Strong evidence	Schererville, IN, United StatesHQ checked Sep 21, 2026	n/a	637 contacts →
	Strong evidence “Since 1974, McColly Real Estate has provided superior service by understanding your personal needs whether first time home buyer, resale, commercial, land, new construction or…” Source: RevenueBase Database · checked Sep 21, 2026
11	Integra Realty Resources	Indirect evidence	Denver, CO, United StatesHQ checked Sep 21, 2026	501-1,000	583 contacts →
	Indirect evidence “Integra Realty Resources, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
12	MNS	Indirect evidence	Brooklyn, United StatesHQ checked Sep 21, 2026	51-200	560 contacts →
	Indirect evidence “At MNS we offer expert services in new development, re-leasing, and data collection and analysis.” Source: RevenueBase Database · checked Sep 21, 2026
13	Walzel Properties, LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	n/a	534 contacts →
	Strong evidence “Walzel Properties, LLC is a real estate company based out of 15420 Ridge Park Drive, Texas, United States.” Source: RevenueBase Database · checked Sep 21, 2026
14	Carrington Real Estate Services	Strong evidence	Aliso Viejo, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	518 contacts →
	Strong evidence “Carrington Real Estate Services is a full-service national brokerage licensed in 23 states.” Source: RevenueBase Database · checked Sep 21, 2026
15	Green Street	Strong evidence	Newport Beach, CA, United StatesHQ checked Sep 21, 2026	201-500	468 contacts →
	Strong evidence “Founded in 1985, Green Street is the premier provider of actionable commercial real estate and infrastructure research, news, data, analytics, and advisory services.” Source: RevenueBase Database · checked Sep 21, 2026
16	Rose & Womble Realty CO	Indirect evidence	Virginia Beach, VA, United StatesHQ checked Sep 21, 2026	501-1,000	467 contacts →
	Indirect evidence “ROSE & WOMBLE BELIEVES THAT PEOPLE ARE MORE IMPORTANT THAN HOUSES.” Source: RevenueBase Database · checked Sep 21, 2026
17	EWM Realty International	Strong evidence	Coral Gables, FL, United StatesHQ checked Sep 21, 2026	501-1,000	462 contacts →
	Strong evidence “EWM Realty International was founded in 1964 in the City of Coral Gables with the goal of providing an exceptional real estate experience that would set it apart from the…” Source: RevenueBase Database · checked Sep 21, 2026
18	Lightbox	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	501-1,000	444 contacts →
	Indirect evidence “LightBox is the Decision Foundation for the Built World.” Source: RevenueBase Database · checked Sep 21, 2026
19	Dream Town Real Estate	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	201-500	375 contacts →
	Indirect evidence “Dream Town is where innovation meets excellence.” Source: RevenueBase Database · checked Sep 21, 2026
20	Real Estate Sales Force, INC	Strong evidence	Coral Gables, FL, United StatesHQ checked Sep 21, 2026	201-500	352 contacts →
	Strong evidence “With over 475 agents and counting and several offices throughout South Florida, Real Estate Sales Force (RESF) is leading the revolution in today’s evolving market.” Source: RevenueBase Database · checked Sep 21, 2026
21	Florida Realty Investments	Strong evidence	Orlando, FL, United StatesHQ checked Sep 21, 2026	51-200	336 contacts →
	Strong evidence “With over 17 years in the Residential and Commercial Real Estate industry, the professionals at Florida Realty Investments have the knowledge and experience necessary to provide…” Source: RevenueBase Database · checked Sep 21, 2026
22	The Real Deal	Indirect evidence	Ny, United StatesHQ checked Sep 21, 2026	51-200	286 contacts →
	Indirect evidence “Bringing transparency to one of the world's most important and least understood industries.” Source: RevenueBase Database · checked Sep 21, 2026
23	Voit Real Estate Services	Strong evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	51-200	257 contacts →
	Strong evidence “Voit Real Estate Services is a Southern California commercial real estate firm that provides strategic real estate solutions tailored to clients’ needs.” Source: RevenueBase Database · checked Sep 21, 2026
24	Prospect Equities	Strong evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	255 contacts →
	Strong evidence “PROSPECT EQUITIES® is a Full-Service Real Estate Brokerage and Franchise System with offices in IL, NY & FL.” Source: RevenueBase Database · checked Sep 21, 2026
25	Coral Shores Realty	Strong evidence	Plantation, FL, United StatesHQ checked Sep 21, 2026	501-1,000	249 contacts →
	Strong evidence “With over 700 Realtors and 9 offices throughout Florida, Coral Shores Realty is the Number 1 Real Estate Brokerage in the State.” Source: RevenueBase Database · checked Sep 21, 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 research 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 research companies.
Partial evidence: Its own public description names part of real estate research 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 research 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 3,554 real estate research companies based in the United States

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Real estate research companies based in the United States at a glance

As of Sep 21, 2026

32.5%Verified-email coverage

18.3Average contacts per company

1-10Median size (employees)

4.7%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

2,308

11-50

904

51-200

228

201-500

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 3,554 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 research 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 research 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 research 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 research 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, 21,122 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 21, 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 research 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 research 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 research companies are there based in the United States?

RevenueBase identified 3,554 real estate research 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?

Douglas Elliman Real Estate, headquartered in New York, tops this list with the largest team on record.

Which city has the most real estate research companies?

New York leads with 166 headquartered companies, followed by Miami (138) and Atlanta (55).

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 21,122 verified decision-maker contacts tracked across these 3,554 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 21, 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.