Company lists · Data refreshed September 2026

Top 25 Office building owners based in the United States

Name: Office building owners based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 4,338 companies tracked

RevenueBase identified 4,338 office building owners headquartered in the United States as of September 2026 and tracks 87,238 professional contacts across them, including 37,050 with verified work emails. New York is the largest hub.

This list covers office building owners 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 17, 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 17, 2026 86% judged on-target in blind review

4,338Companies

87,238Contacts tracked

37,050Verified emails

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The 25 largest office building owners based in the United States

Ranked by team size

Top 25 of 4,338 office building owners based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to office building owners: 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	Berkadia	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,875 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 17, 2026
2	Transwestern	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,718 contacts →
	Indirect evidence “Transwestern is a vertically integrated commercial real estate firm dedicated to serving investors, partners and clients through expertise in investment, development, brokerage…” Source: RevenueBase Database · checked Sep 17, 2026
3	Lincoln Property Company	Partial evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,234 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 17, 2026
4	Tishman Speyer	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,911 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 17, 2026
5	Ryan Companies Us, INC	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,821 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 17, 2026
6	Stream Realty Partners	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,540 contacts →
	Indirect evidence “Stream Realty Partners is one of the fastest-growing full-service commercial real estate companies in the nation.” Source: RevenueBase Database · checked Sep 17, 2026
7	Trammell Crow Company	Partial evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	201-500	891 contacts →
	Partial evidence “Trammell Crow Company (TCC) is a leading commercial real estate developer and wholly-owned subsidiary of CBRE Group, Inc.(NYSE:CBRE), a Fortune 500 and S&P 500 company…” Source: RevenueBase Database · checked Sep 17, 2026
8	Vornado Realty Trust	Strong evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	794 contacts →
	Strong evidence “Vornado Realty Trust is a preeminent owner, manager and developer of office and retail assets.” Source: RevenueBase Database · checked Sep 17, 2026
9	Forest City Realty Trust	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 17, 2026	1,001-5,000	786 contacts →
	Partial evidence “Forest City Realty Trust, Inc, was an NYSE-listed national real estate company principally engaged in the ownership, development, management and acquisition of commercial and…” Source: RevenueBase Database · checked Sep 17, 2026
10	SL Green Realty Corp	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	501-1,000	752 contacts →
	Partial evidence “SL Green Realty Corp, Manhattan's largest office landlord, is a fully integrated real estate investment trust, or REIT, that is focused primarily on acquiring, managing and…” Source: RevenueBase Database · checked Sep 17, 2026
11	Drucker Falk, LLC	Partial evidence	Newport News, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	740 contacts →
	Partial evidence “Headquartered in Newport News, Virginia, we employ over team members and service our business commitments from four regional offices throughout Virginia, Maryland, North Carolina…” Source: RevenueBase Database · checked Sep 17, 2026
12	Revantage, A Blackstone Portfolio Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	501-1,000	621 contacts →
	Indirect evidence “A global corporate services leader proudly serving Blackstone Real Estate portfolio companies and investments.” Source: RevenueBase Database · checked Sep 17, 2026
13	Thompson Thrift	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	501-1,000	598 contacts →
	Partial evidence “Thompson Thrift is an integrated full-service real estate company with offices in Indianapolis and Terre Haute, Indiana, Houston, Texas, Phoenix, Arizona and Denver, Colorado.” Source: RevenueBase Database · checked Sep 17, 2026
14	The Inland Real Estate Group Of Companies, INC	Indirect evidence	Oak Brook, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	580 contacts →
	Indirect evidence “The Inland Real Estate Group of Companies, Inc.(“Inland”) is one of the nation’s largest vertically integrated commercial real estate investment, finance, development, and…” Source: RevenueBase Database · checked Sep 17, 2026
15	Highwoods Properties	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 17, 2026	201-500	529 contacts →
	Indirect evidence “Highwoods Properties, headquartered in Raleigh, North Carolina, is a publicly traded (NYSE:HIW) real estate investment trust (“REIT”) and a member of the S&P MidCap 400 Index.” Source: RevenueBase Database · checked Sep 17, 2026
16	Boxer Property	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	504 contacts →
	Indirect evidence “Boxer Property was founded in Dallas, Texas in 1992, to acquire, manage, lease, administer and sell closely held commercial properties.” Source: RevenueBase Database · checked Sep 17, 2026
17	Empire State Realty Trust	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	501-1,000	454 contacts →
	Partial evidence “Empire State Realty Trust, Inc.(NYSE: ESRT) is a NYC-focused REIT that owns and operates a portfolio of well-leased, top of tier, modernized, amenitized, and well-located office…” Source: RevenueBase Database · checked Sep 17, 2026
18	WS Development	Indirect evidence	Chestnut Hill, MA, United StatesHQ checked Sep 17, 2026	201-500	446 contacts →
	Indirect evidence “Massachusetts-based WS Development is a mixed-use developer with a singular mission: creating places people want to be.” Source: RevenueBase Database · checked Sep 17, 2026
19	Partners	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	201-500	440 contacts →
	Partial evidence “Partners is one of the largest privately-held and independently-owned commercial real estate firms in the U.S.” Source: RevenueBase Database · checked Sep 17, 2026
20	Biomed Realty	Partial evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	201-500	416 contacts →
	Partial evidence “BioMed Realty is a large private owner and operator of real estate solutions for the life science, technology, and innovative industries, creating environments where innovation…” Source: RevenueBase Database · checked Sep 17, 2026
21	Bxp, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	501-1,000	414 contacts →
	Indirect evidence “At BXP (NYSE: BXP), our people are our most important asset, and our people are passionate about great space and place.” Source: RevenueBase Database · checked Sep 17, 2026
22	Stiles	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 17, 2026	201-500	414 contacts →
	Indirect evidence “Celebrating 75 years, Stiles is a full-service commercial real estate firm with a clear mission: Invest∙Build∙Manage.” Source: RevenueBase Database · checked Sep 17, 2026
23	Franklin Street	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 17, 2026	201-500	410 contacts →
	Indirect evidence “Franklin Street is a privately held, full-service commercial real estate services firm headquartered in Tampa, Florida.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tarantino Properties, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	398 contacts →
	Indirect evidence “Tarantino Properties is a full-service real estate company specializing in income producing real estate.” Source: RevenueBase Database · checked Sep 17, 2026
25	CSM Corporation	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	396 contacts →
	Indirect evidence “Founded in 1976, CSM Corporation grew out of entrepreneur Gary Holmes’ first real estate asset purchase at the age of 14.” Source: RevenueBase Database · checked Sep 17, 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: office building owners. 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 office building owners.
Partial evidence: Its own public description names part of office building owners, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name office building owners. 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 4,338 office building owners based in the United States

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Office building owners based in the United States at a glance

As of Sep 17, 2026

42.5%Verified-email coverage

20.1Average contacts per company

1-10Median size (employees)

4.0%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,237

11-50

1,438

51-200

472

201-500

102

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 4,338 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 office building owners, 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 “office building owners”. 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 office building owners), 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 office building owners, 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, 37,050 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 17, 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 owners 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 office building owners, 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 office building owners are there based in the United States?

RevenueBase identified 4,338 office building owners 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?

Berkadia, headquartered in New York, tops this list with the largest team on record.

Which city has the most office building owners?

New York leads with 174 headquartered companies, followed by Houston (89) and Los Angeles (83).

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 37,050 verified decision-maker contacts tracked across these 4,338 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 17, 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.