Company lists · Data refreshed September 2026

Top 25 Trust administration law firms based in Irvine, United States

Name: Trust administration law firms based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 70 companies tracked

RevenueBase identified 70 trust administration law firms headquartered in Irvine, United States as of September 2026 and tracks 1,002 professional contacts across them, including 485 with verified work emails. Across the United States, New York is the largest hub for this category (294 companies); Irvine has 70.

This list covers trust administration law firms 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 29, 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 29, 2026 86% judged on-target in blind review

70Companies

1,002Contacts tracked

485Verified emails

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The 25 largest trust administration law firms based in Irvine, United States

Ranked by team size

Top 25 of 70 trust administration law firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to trust administration law firms: 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	Wright Ford Young & CO	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	93 contacts →
	Indirect evidence “We are a full service mezzanine accounting firm that provides an atmosphere where people can flourish in their careers, while at the same time, being able to have meaningful…” Source: RevenueBase Database · checked Sep 29, 2026
2	Brown Streza	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	91 contacts →
	Partial evidence “Brown \| Streza is a law firm providing exceptional, integrated legal services in the areas of tax, estate, business, charitable planning, mergers and acquisitions, business…” Source: RevenueBase Database · checked Sep 29, 2026
3	Palmieri, Tyler, Wiener, Wilhelm & Waldron, LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	70 contacts →
	Partial evidence “Palmieri Tyler is one of Orange County's most prominent and well respected full service law firms.” Source: RevenueBase Database · checked Sep 29, 2026
4	TLD LAW	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	56 contacts →
	Indirect evidence “From an individual’s estate needs to a business’s litigation concerns and protection, we offer a wide breadth and depth of practice area expertise supporting all of our clients…” Source: RevenueBase Database · checked Sep 29, 2026
5	Grant, Genovese & Baratta, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	54 contacts →
	Indirect evidence “At GGB, our business is protecting yours.” Source: RevenueBase Database · checked Sep 29, 2026
6	LAW Stein Anderson, LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	37 contacts →
	Partial evidence “TRUST EXPERIENCE.” Source: RevenueBase Database · checked Sep 29, 2026
7	Houser LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	37 contacts →
	Partial evidence “Houser LLP, is a commercial and business litigation law firm serving Fortune 500 companies as well as small businesses.” Source: RevenueBase Database · checked Sep 29, 2026
8	Kimura London & White LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	34 contacts →
	Indirect evidence “Kimura London & White LLP was built to protect what matters most to our clients.” Source: RevenueBase Database · checked Sep 29, 2026
9	Murtaugh Attorneys At LAW	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	33 contacts →
	Partial evidence “Murtaugh \| Attorneys at Law is a multi-faceted law firm which prides itself on being responsive to its clients, and on achieving cost-effective solutions to their varied needs.” Source: RevenueBase Database · checked Sep 29, 2026
10	The Legacy Lawyers	Strong evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	29 contacts →
	Strong evidence “We are an Orange County trust administration and litigation law firm that helps Southern California-based family trust successor trustees perform their duties as trustees.” Source: RevenueBase Database · checked Sep 29, 2026
11	The Estate Lawyers	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	26 contacts →
	Partial evidence “At The Estate Lawyers, we focus exclusively on trust and estate litigation, advocating for individuals and families when the stakes are highest.” Source: RevenueBase Database · checked Sep 29, 2026
12	Gokal LAW Group, Inc. Trust, Probate, And Business Litigation	Strong evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	25 contacts →
	Strong evidence “Committed to providing high level litigation services, trust administration, probate, and trust litigation appeals.” Source: RevenueBase Database · checked Sep 29, 2026
13	GOE Forsythe & Hodges LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	22 contacts →
	Partial evidence “Goe Forsythe & Hodges LLP is a Southern California based business law firm that is committed to the highest level of service to its individual and business clients.” Source: RevenueBase Database · checked Sep 29, 2026
14	Madison Law, APC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Partial evidence “Madison Law is a full service law firm, focusing on a number of legal disciplines critical in today's fast-paced environment.” Source: RevenueBase Database · checked Sep 29, 2026
15	Citadel LAW Corporation	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Partial evidence “For over twenty years, Citadel Law Corporation has provided a complete range of essential and advanced estate planning services.” Source: RevenueBase Database · checked Sep 29, 2026
16	Albrecht & Barney LAW Corporation	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Partial evidence “When we first opened our doors in 1995, we decided that the best way to practice was by becoming experts in a single area of the law, estate planning.” Source: RevenueBase Database · checked Sep 29, 2026
17	Driscoll Anderson Reynard LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “Driscoll Anderson Reynard LLP specializes in offering custom estate planning and probate services for individuals and families.” Source: RevenueBase Database · checked Sep 29, 2026
18	Burkhalter Kessler Clement & George LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “Burkhalter Kessler Clement & George LLP (BKCG) offers experienced legal counsel and strategic representation to small- and medium-size businesses and high net worth individuals…” Source: RevenueBase Database · checked Sep 29, 2026
19	Seastrom Tuttle & Murphy	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	11 contacts →
	Indirect evidence “Our highly respected team of family attorneys are experienced negotiators and regularly recognized for their ability to get results.” Source: RevenueBase Database · checked Sep 29, 2026
20	Miller Miller Gerber, LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “Miller Miller Gerber LLP is a full-service law firm with an office in Irvine.” Source: RevenueBase Database · checked Sep 29, 2026
21	Zeppos LAW Group LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “Zeppos Law Group LLP, focuses on serving the diverse needs of privately-held businesses of all sizes throughout California.” Source: RevenueBase Database · checked Sep 29, 2026
22	Mortensen And Reinheimer, PC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	8 contacts →
	Indirect evidence “Do you need an Orange County estate planning lawyer?” Source: RevenueBase Database · checked Sep 29, 2026
23	Modern Wealth Law, Aplc	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Partial evidence “Modern Wealth Law, APLC is a full service estate planning and probate law firm in Orange County.” Source: RevenueBase Database · checked Sep 29, 2026
24	OC Wills And Trust Attorneys	Strong evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	7 contacts →
	Strong evidence “OC Wills and Trust Attorneys, a division of the Law Offices of Brian Chew, was founded on the principle of providing our clients with professional legal services while also…” Source: RevenueBase Database · checked Sep 29, 2026
25	Masson & Fatini, LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Partial evidence “MASSON & FATINI, LLP is a law practice company based out of TWO PARK PLAZA, SUITE 980, IRVINE, California, United States.” Source: RevenueBase Database · checked Sep 29, 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: trust administration law firms. 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 trust administration law firms.
Partial evidence: Its own public description names part of trust administration law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name trust administration law firms. 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 70 trust administration law firms based in Irvine, United States

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Trust administration law firms based in Irvine, United States at a glance

As of Sep 29, 2026

48.4%Verified-email coverage

14.3Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 70 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 trust administration law firms, 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 “trust administration law firms”. 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 trust administration law firms), 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 trust administration law firms, 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, 485 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 29, 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.

Trust administration law firms 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 trust administration law firms, 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 trust administration law firms are there based in Irvine, United States?

RevenueBase identified 70 trust administration law firms 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?

Wright Ford Young & CO, headquartered in Irvine, tops this list with the largest team on record.

Which city in the United States has the most trust administration law firms?

New York leads the United States with 294 headquartered companies, followed by Houston (183) and Chicago (182). Irvine has 70.

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 485 verified decision-maker contacts tracked across these 70 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 29, 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.