Company lists · Data refreshed September 2026

Top 25 Office building investment firms based in New York, United States

Name: Office building investment firms based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 982 companies tracked

RevenueBase identified 982 office building investment firms headquartered in New York, United States as of September 2026 and tracks 40,262 professional contacts across them, including 19,156 with verified work emails. New York is the largest hub.

This list covers office building investment firms headquartered in New York, 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

982Companies

40,262Contacts tracked

19,156Verified emails

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The 25 largest office building investment firms based in New York, United States

Ranked by team size

Top 25 of 982 office building investment firms based in New York, 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.
#	Company	Headquarters	Employees	Contacts
1	NewmarkIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	5,001-10,000	6,555
	“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
2	Brookfield PropertiesIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	5,001-10,000	4,785
	“Brookfield Properties is now BGRE, reflecting the next chapter of our global real estate platform.” Source: company website · checked Sep 5, 2026
3	BerkadiaIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,875
	“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
4	Tishman SpeyerPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,911
	“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
5	BGOPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,252
	“BGO is a leading, global real estate investment management advisor, real estate lender, and a globally-recognized provider of real estate services.” Source: company website · checked Sep 5, 2026
6	GreystonePartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	983
	“Founded in 1988, Greystone is a private commercial real estate finance and investment company with unmatched experience in debt, equity, investment sales and loan servicing…” Source: company website · checked Sep 5, 2026
7	Vornado Realty TrustPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	794
	“Vornado Realty Trust is a preeminent owner, manager and developer of office and retail assets.” Source: company website · checked Sep 5, 2026
8	SL Green Realty CorpStrong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	752
	“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: company website · checked Sep 5, 2026
9	AKAMIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	739
	“Powered by its people and its properties, AKAM sets the standard in property management and brokerage for both residential and commercial properties.” Source: company website · checked Sep 5, 2026
10	Rose AssociatesIndirect evidence	New York, United StatesHQ checked Sep 5, 2026	201-500	609
	“WORLD CLASS ACQUISITIONS, DEVELOPMENT & MANAGEMENT, ROOTED IN NEW YORK.” Source: company website · checked Sep 5, 2026
11	LumentIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	516
	“Value Beyond the Deal.” Source: company website · checked Sep 5, 2026
12	RXRPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	488
	“RXR an innovative investor, developer and place-maker committed to applying a customer and community-centered approach to building properties, services, and products that create…” Source: company website · checked Sep 5, 2026
13	The Durst OrganizationIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	482
	“The Durst Organization was founded in 1915 by Joseph and Rose Durst with the philosophy of: “Leave each place better than you found it.” For generations, Durst has been a…” Source: company website · checked Sep 5, 2026
14	Empire State Realty TrustPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	454
	“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: company website · checked Sep 5, 2026
15	TF CornerstoneIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	426
	“TF Cornerstone (TFC) is a privately held vertically integrated real estate development company with a commitment to long-term multi-generational ownership.” Source: company website · checked Sep 5, 2026
16	Paramount GroupStrong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	371
	“Formerly Paramount Group, Elecor Properties is a premier real assets operating platform that develops and operates trophy-quality office buildings in the most sought-after…” Source: company website · checked Sep 5, 2026
17	Clarion Partners LLCPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	366
	“Clarion Partners is a leading pure-play commercial real estate investment manager.” Source: company website · checked Sep 5, 2026
18	Related Management CompanyIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	316
	“Related Management Company (RMC) is A subsidiary of Related Companies, a leading owner and operator of real estate, managing a $60+ billion portfolio of premier residential and…” Source: company website · checked Sep 5, 2026
19	NAI GlobalIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	5,001-10,000	265
	“NAI Global is a leading global commercial real estate brokerage firm.” Source: company website · checked Sep 5, 2026
20	Stellar ManagementPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	258
	“Founded in 1985, Stellar Management is a New York City based real estate investment and management firm.” Source: company website · checked Sep 5, 2026
21	Rockefeller GroupIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	243
	“Rockefeller Group is a leading U.S.” Source: company website · checked Sep 5, 2026
22	LightstoneIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	501-1,000	236
	“Lightstone, founded by David Lichtenstein, is one of the most diversified privately held real estate companies in the United States.” Source: company website · checked Sep 5, 2026
23	LCORPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	201-500	235
	“LCOR is a fully integrated multifamily development, investment, and operating company focused on key gateway MSAs in the eastern U.S.” Source: company website · checked Sep 5, 2026
24	Kassin Sabbagh RealtyPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	205
	“KSR is a fully integrated real estate services and investment firm focused primarily on the New York City and Tri-State markets, with additional reach across key national markets.” Source: company website · checked Sep 5, 2026
25	RIPCOIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	201
	“RIPCO Real Estate is a leading commercial real estate brokerage firm, recognized for its reputation of excellence since 1991.” Source: company website · checked Sep 5, 2026

Showing 25 of 982 office building investment firms based in New York, United States

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Office building investment firms based in New York, United States at a glance

As of Sep 5, 2026

11-50Median size (employees)

New YorkLargest hub · 982 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

452

11-50

338

51-200

130

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for New York, over 982 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 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 New York, 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 New York 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, 19,156 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 in the United States

Frequently asked

How many office building investment firms are there based in New York, United States?

RevenueBase identified 982 office building investment firms headquartered in New York, 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?

Newmark, headquartered in New York, 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 19,156 verified decision-maker contacts tracked across these 982 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.