Company lists · Data refreshed September 2026

Top 25 Office building management companies based in the United States

Name: Office building management 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 17, 2026 9,661 companies tracked

RevenueBase identified 9,661 office building management companies headquartered in the United States as of September 2026 and tracks 163,475 professional contacts across them, including 48,718 with verified work emails. New York is the largest hub.

This list covers office building management 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 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

9,661Companies

163,475Contacts tracked

48,718Verified emails

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The 25 largest office building management companies based in the United States

Ranked by team size

Top 25 of 9,661 office building management companies 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 management 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	Asset Living	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,564 contacts →
	Partial evidence “Asset Living is a third-party management firm and a proven partner in fostering thriving communities nationwide.” Source: RevenueBase Database · checked Sep 17, 2026
2	KBS	Indirect evidence	Oceanside, CA, United StatesHQ checked Sep 17, 2026	10001+	3,229 contacts →
	Indirect evidence “KBS is a trusted partner to leading operations and facility managers across North America.” Source: RevenueBase Database · checked Sep 17, 2026
3	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
4	Cleaning Services Group	Partial evidence	Danvers, MA, United StatesHQ checked Sep 17, 2026	n/a	2,418 contacts →
	Partial evidence “Cleaning Services Group, Inc.(CSG) is a multi-faceted, national building services company dedicated to providing our clients with cost effective cleaning and maintenance solutions…” Source: RevenueBase Database · checked Sep 17, 2026
5	GCA Services Group	Partial evidence	NY, United StatesHQ checked Sep 17, 2026	10001+	2,295 contacts →
	Partial evidence “ABM (NYSE: ABM) is a Fortune 500 company and leading provider of facility solutions with offices throughout the United States and various international locations.” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	FPI Management	Partial evidence	Folsom, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,868 contacts →
	Partial evidence “FPI Management represents a model of corporate citizenship, through the responsible management of our company and properties, for the benefit of our clients, employees and for…” Source: RevenueBase Database · checked Sep 17, 2026
8	BG Staffing	Partial evidence	Addison, TX, United StatesHQ checked Sep 17, 2026	501-1,000	1,601 contacts →
	Partial evidence “BG Staffing (NYSE: BGSF) provides best-in-class property management resources and solutions to growing apartment and luxury communities, as well as commercial properties, and was…” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Castle Group	Partial evidence	Plantation, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,257 contacts →
	Partial evidence “Castle Group is the premier choice for property management; we specialize in serving the finest residential communities.” Source: RevenueBase Database · checked Sep 17, 2026
11	Northmarq	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,239 contacts →
	Indirect evidence “As a company built on the founding principle of integrity, we’re invested in your success.” Source: RevenueBase Database · checked Sep 17, 2026
12	ZRS Management	Partial evidence	Orlando, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,232 contacts →
	Partial evidence “ZRS Management, LLC is a stand-alone third party management company.” Source: RevenueBase Database · checked Sep 17, 2026
13	City Wide Facility Solutions	Partial evidence	Lenexa, KS, United StatesHQ checked Sep 17, 2026	n/a	1,192 contacts →
	Partial evidence “Founded in 1961, City Wide has become synonymous with building maintenance in its home Kansas City market and now has over 100 franchise locations in the United States and Canada.” Source: RevenueBase Database · checked Sep 17, 2026
14	RAM Partners, LLC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,066 contacts →
	Partial evidence “RAM Partners is a full-service real estate management company that manages apartments throughout the United States.” Source: RevenueBase Database · checked Sep 17, 2026
15	Planned Companies	Indirect evidence	Parsippany, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,035 contacts →
	Indirect evidence “Planned Companies, an innovative leader in the real estate service industry, is committed to providing the most accountable and professional service for its valued clientele.” Source: RevenueBase Database · checked Sep 17, 2026
16	Highmark Residential	Partial evidence	Addison, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	886 contacts →
	Partial evidence “Highmark Residential is a national multifamily property management company with more than 30 years of experience operating apartment communities across the United States.” Source: RevenueBase Database · checked Sep 17, 2026
17	Gallagher & Mohan	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	501-1,000	780 contacts →
	Partial evidence “Gallagher & Mohan is a premier commercial real estate professional services firm dedicated to helping real estate companies scale their operations and minimize back-office support…” Source: RevenueBase Database · checked Sep 17, 2026
18	Dtz, A UGL Company	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	n/a	761 contacts →
	Indirect evidence “For more information, visit DTZ is a global leader in property services, providing occupiers and investors around the world with industry leading, end-to-end property solutions.” Source: RevenueBase Database · checked Sep 17, 2026
19	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
20	AKAM	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	201-500	739 contacts →
	Partial evidence “Powered by its people and its properties, AKAM sets the standard in property management and brokerage for both residential and commercial properties.” Source: RevenueBase Database · checked Sep 17, 2026
21	Pritchard Industries	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	637 contacts →
	Partial evidence “Driven by a singular vision, it is our mission to provide unparalleled excellence in building services with an emphasis on quality, integrity & innovation.” Source: RevenueBase Database · checked Sep 17, 2026
22	Lessen	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 17, 2026	501-1,000	596 contacts →
	Indirect evidence “Lessen makes caring for, and improving real estate properties simpler, faster, and better through best-in-class, fully outsourced, and on-demand property services.” Source: RevenueBase Database · checked Sep 17, 2026
23	Douglas Elliman Property Management	Partial evidence	New York City, NY, United StatesHQ checked Sep 17, 2026	51-200	581 contacts →
	Partial evidence “Douglas Elliman Property Management is the most comprehensive residential real estate management firm in the New York Metropolitan area.” Source: RevenueBase Database · checked Sep 17, 2026
24	Douglas Emmett	Partial evidence	Santa Monica, CA, United StatesHQ checked Sep 17, 2026	501-1,000	540 contacts →
	Partial evidence “Douglas Emmett, Inc.(NYSE:DEI) stands as a prominent figure in the real estate industry, specializing in Class-A office properties and luxury apartment communities across Southern…” Source: RevenueBase Database · checked Sep 17, 2026
25	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

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 management 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 office building management companies.
Partial evidence: Its own public description names part of office building management companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name office building management 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 9,661 office building management companies based in the United States

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Office building management companies based in the United States at a glance

As of Sep 17, 2026

29.8%Verified-email coverage

16.9Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

5,213

11-50

3,017

51-200

945

201-500

274

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 9,661 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 management 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 “office building management 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 office building management 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 office building management 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, 48,718 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 management 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 office building management 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 office building management companies are there based in the United States?

RevenueBase identified 9,661 office building management 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?

Asset Living, headquartered in Houston, tops this list with the largest team on record.

Which city has the most office building management companies?

New York leads with 353 headquartered companies, followed by Chicago (164) and Houston (159).

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 48,718 verified decision-maker contacts tracked across these 9,661 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.