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Company lists · Data refreshed September 2026

Top 25 Office building investment firms based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 17,566 companies tracked

RevenueBase identified 17,566 office building investment firms headquartered in the United States as of September 2026 and tracks 503,124 professional contacts across them, including 204,249 with verified work emails and 194,439 with mobile numbers. New York is the largest hub.

This list covers office building investment firms 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
17,566Companies
503,124Contacts tracked
204,249Verified emails
194,439Mobile numbers
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The 25 largest office building investment firms based in the United States

Ranked by team size
Top 25 of 17,566 office building investment firms 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 office building investment firms: 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.
#CompanyHeadquartersEmployeesContacts
1
JLLPartial evidence
Chicago, IL, United StatesHQ checked Sep 5, 202610001+76,504

“JLL (Jones Lang LaSalle Incorporated) is a leading global commercial real estate services and investment management company.”

Source: company website · checked Sep 5, 2026
2
CBREIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 202610001+56,908

“Operating across every dimension of commercial real estate, CBRE sees more so you can do more.”

Source: company website · checked Sep 5, 2026
3
GreystarIndirect evidence
Charleston, SC, United StatesHQ checked Sep 5, 202610001+17,374

“Founded in 1993, Greystar provides world-class service in the residential rental housing industry.”

Source: company website · checked Sep 5, 2026
4
NewmarkIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20265,001-10,0006,555

“Newmark Group, Inc.(Nasdaq: NMRK), together with its subsidiaries (“Newmark”), is a world leading commercial real estate advisor and service provider to large institutional…”

Source: company website · checked Sep 5, 2026
5
HINESPartial evidence
Houston, TX, United StatesHQ checked Sep 5, 20261,001-5,0005,012

“Hines is a leading global real estate investment manager.”

Source: company website · checked Sep 5, 2026
6
Brookfield PropertiesIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20265,001-10,0004,785

“Brookfield Properties is now BGRE, reflecting the next chapter of our global real estate platform.”

Source: company website · checked Sep 5, 2026
7
Simon Property GroupIndirect evidence
Indianapolis, IN, United StatesHQ checked Sep 5, 20265,001-10,0003,814
Source: company website · checked Sep 5, 2026
8
Marcus & MillichapIndirect evidence
Calabasas, CA, United StatesHQ checked Sep 5, 20261,001-5,0003,787

“Marcus & Millichap was founded in 1971 with the goal of being a new kind of company – one driven by long-term relationships and built on a culture of collaboration.”

Source: company website · checked Sep 5, 2026
9
RPM LivingPartial evidence
Austin, TX, United StatesHQ checked Sep 5, 20261,001-5,0002,916

“RPM Living is a full-service multifamily management, investment and development company offering an innovative and personalized approach to real estate services.”

Source: company website · checked Sep 5, 2026
10
BerkadiaIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0002,875

“Berkadia, a joint venture of Berkshire Hathaway and Jefferies Financial Group, is a leader in the commercial real estate industry, offering a robust suite of services to our…”

Source: company website · checked Sep 5, 2026
11
BozzutoIndirect evidence
Washington, DC, United StatesHQ checked Sep 5, 20261,001-5,0002,787

“Bozzuto is an experience-focused real estate company distinguished by our innovative developments, dedicated customer service and top-rated workplace culture.”

Source: company website · checked Sep 5, 2026
12
TranswesternPartial evidence
Houston, TX, United StatesHQ checked Sep 5, 20261,001-5,0002,718

“Transwestern is a vertically integrated commercial real estate firm dedicated to serving investors, partners and clients through expertise in investment, development, brokerage…”

Source: company website · checked Sep 5, 2026
13
GGPIndirect evidence
Chicago, IL, United StatesHQ checked Sep 5, 20261,001-5,0002,353

“On August 28th, 2018, GGP Inc.”

Source: company website · checked Sep 5, 2026
14
Lincoln Property CompanyPartial evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261,001-5,0002,234

“Lincoln Property Company (“Lincoln”) is one of the largest diversified real estate services companies with 35 offices across the United States the United Kingdom and Europe.”

Source: company website · checked Sep 5, 2026
15
Willow Bridge Property CompanyIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 20265,001-10,0002,074

“We are Willow Bridge.”

Source: company website · checked Sep 5, 2026
16
Tishman SpeyerPartial evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0001,911

“As a diversified developer, operator, and investment manager of top-tier real estate across the US, Europe, Asia and South America, Tishman Speyer creates vibrant destinations and…”

Source: company website · checked Sep 5, 2026
17
MAAIndirect evidence
Germantown, TN, United StatesHQ checked Sep 5, 20261,001-5,0001,902

“MAA is a real estate company focused on providing a high-quality apartment living experience to residents across the Southeast, Southwest and Mid-Atlantic regions of the United…”

Source: company website · checked Sep 5, 2026
18
Ryan Companies Us, INCPartial evidence
Minneapolis, MN, United StatesHQ checked Sep 5, 20261,001-5,0001,821

“At Ryan Companies, we believe the value of the buildings we design, develop, finance, manage and construct is about more than dollars and cents – it’s also about the value they…”

Source: company website · checked Sep 5, 2026
19
Essex Property TrustPartial evidence
San Mateo, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,769

“Essex Property Trust, Inc, is a fully integrated real estate investment trust (REIT) that acquires, develops, redevelops, and manages multifamily residential properties in San…”

Source: company website · checked Sep 5, 2026
20
Stream Realty PartnersIndirect evidence
Dallas, TX, United StatesHQ checked Sep 5, 20261,001-5,0001,540

“Stream Realty Partners is one of the fastest-growing full-service commercial real estate companies in the nation.”

Source: company website · checked Sep 5, 2026
21
Camden Property TrustIndirect evidence
Houston, TX, United StatesHQ checked Sep 5, 20261,001-5,0001,498

“Camden is one of the largest publicly traded multifamily companies in the nation.”

Source: company website · checked Sep 5, 2026
22
Morgan PropertiesPartial evidence
Conshohocken, PA, United StatesHQ checked Sep 5, 20261,001-5,0001,413

“Established in 1985 by Mitchell Morgan, Morgan Properties is a national real estate investment and management company headquartered in King of Prussia, Pennsylvania.”

Source: company website · checked Sep 5, 2026
23
Fairfield ResidentialPartial evidence
San Diego, CA, United StatesHQ checked Sep 5, 20261,001-5,0001,352

“Driven by a Vision We are a vertically integrated operator and investment manager in the multifamily sector with in-house development, construction, acquisition, and property and…”

Source: company website · checked Sep 5, 2026
24
Landmark Properties, INCIndirect evidence
Athens, GA, United StatesHQ checked Sep 5, 20261,001-5,0001,330

“Visit our website: If you are interested in working for Landmark Properties, please visit our career page: Headquartered in Athens, Georgia, Landmark Properties is a…”

Source: company website · checked Sep 5, 2026
25
The Michaels OrganizationIndirect evidence
Camden, NJ, United StatesHQ checked Sep 5, 20261,001-5,0001,276

“The Michaels Organization is a national leader in residential real estate, with full service capabilities in development, property management, construction, acquisition &…”

Source: company website · checked Sep 5, 2026

Showing 25 of 17,566 office building investment firms based in the United States

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Office building investment firms based in the United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 982 HQs
194,439Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
10,082
11-50
5,225
51-200
1,566
201-500
373
501-1,000
133
1,001-5,000
113
5,001-10,000
9
10001+
27

Verified emails by last verification

0–30
188,760
31–60
12,680
61–90
133
90–180
76
180+
2,600

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 office building investment firms, 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 “office building investment firms”. 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 office building investment firms, 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, 204,249 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.

Office building investment firms by metro

Frequently asked

How many office building investment firms are there based in the United States?

RevenueBase identified 17,566 office building investment firms 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?

JLL, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most office building investment firms?

New York leads with 982 headquartered companies, followed by Los Angeles (478) and Houston (415).

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 204,249 verified decision-maker contacts tracked across these 17,566 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.

Ready to reach these companies? Verified emails and direct dials for all 17,566 office building investment firms based in the United States. Start with a free account, no credit card.

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Related lists

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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.

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