Company lists · Data refreshed September 2026

Top 25 Office building investors based in Irvine, United States

Name: Office building investors based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 102 companies tracked

RevenueBase identified 102 office building investors headquartered in Irvine, United States as of September 2026 and tracks 2,594 professional contacts across them, including 1,102 with verified work emails. New York is the largest hub.

This list covers office building investors headquartered in Irvine, 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

102Companies

2,594Contacts tracked

1,102Verified emails

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The 25 largest office building investors based in Irvine, United States

Ranked by team size

Top 25 of 102 office building investors based in Irvine, 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 investors: 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	LBA	Partial evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	201-500	310 contacts →
	Partial evidence “LBA, founded in 1991, is a full service real estate investment and management company with a diverse portfolio of industrial and office properties in major markets throughout the…” Source: RevenueBase Database · checked Sep 17, 2026
2	Steadfast Companies	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	298 contacts →
	Indirect evidence “Since our formation in 1994, Steadfast Companies and its affiliates have developed into an integrated, multifaceted real estate investment management company that today owns…” Source: RevenueBase Database · checked Sep 17, 2026
3	Voit Real Estate Services	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	257 contacts →
	Indirect 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 17, 2026
4	Panattoni Development Company	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	240 contacts →
	Indirect evidence “With an expansive international platform, Panattoni Development Company, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
5	The Muller Company	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	85 contacts →
	Indirect evidence “The Muller Company is an opportunistic real-estate investment, development, and management firm with a proven track record in acquiring and re positioning commercial properties.” Source: RevenueBase Database · checked Sep 17, 2026
6	Greenlaw Partners	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	81 contacts →
	Indirect evidence “Greenlaw is an Orange County based real estate development and investment management company.” Source: RevenueBase Database · checked Sep 17, 2026
7	Kairos Investment Management Company	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	72 contacts →
	Indirect evidence “Kairos Investment Management Company is a privately owned entrepreneurial real estate investment and asset management company headquartered in Irvine, California.” Source: RevenueBase Database · checked Sep 17, 2026
8	Passco Companies, LLC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	70 contacts →
	Indirect evidence “Passco Companies, LLC is a nationally recognized market leader in the acquisition, development, and management of multifamily and commercial properties throughout the U.S.” Source: RevenueBase Database · checked Sep 17, 2026
9	CIP Real Estate	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	68 contacts →
	Indirect evidence “CIP Real Estate (“CIP”) is a full service real estate investment and management company based in Irvine, California, focused on the acquisition, development, repositioning and…” Source: RevenueBase Database · checked Sep 17, 2026
10	Marwest Commercial	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	63 contacts →
	Indirect evidence “MarWest Commercial is the leading full-service real estate management company specializing in the formation, management and repair of Commercial Property Owners’ Associations…” Source: RevenueBase Database · checked Sep 17, 2026
11	Essex Realty Management, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	62 contacts →
	Indirect evidence “Established in 1987, ESSEX REALTY MANAGEMENT, INC.” Source: RevenueBase Database · checked Sep 17, 2026
12	CREDE	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	56 contacts →
	Indirect evidence “CREDE is a full-service Commercial Real Estate Development firm that provides Project Management services to its clients using the same approach we take on our direct investments.” Source: RevenueBase Database · checked Sep 17, 2026
13	Sperry Commercial	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	56 contacts →
	Indirect evidence “Sperry Commercial is a full-service commercial real estate firm specializing in investment sales, leasing, property and asset management, as well as 1031 exchange services.” Source: RevenueBase Database · checked Sep 17, 2026
14	The Koll Company	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	53 contacts →
	Indirect evidence “The Koll Company is a well-capitalized full-service real estate operating company headquartered in Irvine, California.” Source: RevenueBase Database · checked Sep 17, 2026
15	Riverrock Real Estate Group	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	52 contacts →
	Indirect evidence “RiverRock Real Estate Group understands how to deliver superior institutional level service at a regional level for a competitive value.” Source: RevenueBase Database · checked Sep 17, 2026
16	Tiarna Real Estate Services, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	51 contacts →
	Indirect evidence “Real Estate Management & Brokerage” Source: RevenueBase Database · checked Sep 17, 2026
17	RED Tail Acquisitions	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	39 contacts →
	Indirect evidence “Founded in 1985, Red Tail Acquisitions, LLC (“RTA”) is a private real estate investment firm focused in acquiring industrial and retail properties throughout the United States.” Source: RevenueBase Database · checked Sep 17, 2026
18	Pres Companies	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Professional Real Estate Services, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
19	Argent Management LLC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	25 contacts →
	Partial evidence “Argent Management LLC is a provider of real estate services to institutional investors, private owners, developers and financial institutions; and is affiliated with principals of…” Source: RevenueBase Database · checked Sep 17, 2026
20	Pendulum Property Partners	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “Pendulum Property Partners is a privately held real estate firm that owns, operates, develops and manages commercial real estate.” Source: RevenueBase Database · checked Sep 17, 2026
21	Faris LEE Investments	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	51-200	22 contacts →
	Indirect evidence “Faris Lee Investments is a nationally recognized investment advisory firm specialized in retail commercial real estate.” Source: RevenueBase Database · checked Sep 17, 2026
22	TMC Group	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Founded in 1985, TMC Group is a private holding company that owns organizations which invest in, develop, and operate innovative real estate projects and related companies around…” Source: RevenueBase Database · checked Sep 17, 2026
23	Advanced Real Estate	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	201-500	19 contacts →
	Indirect evidence “Advanced Real Estate, Inc.'s partnerships own and manage over multi-family units in Southern California.” Source: RevenueBase Database · checked Sep 17, 2026
24	Starboard Realty Advisors	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “Starboard Realty Advisors LLC, headquartered in Irvine, California, is a privately held, fully integrated real estate firm that has more than 35 years of hands-on, cycle-tested…” Source: RevenueBase Database · checked Sep 17, 2026
25	The Colton Company	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “The Colton Company is a privately held Southern California based commercial real estate company located in Irvine, California.” 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 investors. 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 investors.
Partial evidence: Its own public description names part of office building investors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name office building investors. 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 102 office building investors based in Irvine, United States

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Office building investors based in Irvine, United States at a glance

As of Sep 17, 2026

42.5%Verified-email coverage

25.4Average contacts per company

11-50Median size (employees)

845.1%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Irvine, so it is reported there. Company counts and contact totals on this page are exact for Irvine, over 102 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 investors, 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 Irvine, United States whose own description of what they do matches “office building investors”. 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 investors), 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 investors, and records with no verified work email. Companies headquartered outside Irvine 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, 1,102 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 investors by metro in the United States

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 investors, 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 investors are there based in Irvine, United States?

RevenueBase identified 102 office building investors headquartered in Irvine, 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?

LBA, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most office building investors?

New York leads with 862 headquartered companies, followed by Los Angeles (406) and Houston (375).

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 1,102 verified decision-maker contacts tracked across these 102 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.