Company lists · Data refreshed September 2026

Top 25 Big law firms based in Irvine, United States

Name: Big 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 23, 2026 169 companies tracked

RevenueBase identified 169 big law firms headquartered in Irvine, United States as of September 2026 and tracks 3,389 professional contacts across them, including 1,978 with verified work emails. Across the United States, New York is the largest hub for this category (1,216 companies); Irvine has 169.

This list covers big 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 23, 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 23, 2026 86% judged on-target in blind review

169Companies

3,389Contacts tracked

1,978Verified emails

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The 25 largest big law firms based in Irvine, United States

Ranked by team size

Top 25 of 169 big law firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to big 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	Knobbe Martens	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	501-1,000	606 contacts →
	Indirect evidence “Knobbe Martens protects the ideas that drive innovation and propel our world forward.” Source: RevenueBase Database · checked Sep 23, 2026
2	Rutan & Tucker, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	201-500	338 contacts →
	Indirect evidence “Rutan & Tucker’s highly strategic, forward thinking approach to individual cases and client needs has been the hallmark of the firm since A.W.” Source: RevenueBase Database · checked Sep 23, 2026
3	Kahana Feld	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	201-500	260 contacts →
	Partial evidence “Kahana Feld is a full-service law firm with offices throughout the United States.” Source: RevenueBase Database · checked Sep 23, 2026
4	Koeller, Nebeker, Carlson & Haluck	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	128 contacts →
	Indirect evidence “Koeller Nebeker Carlson Haluck LLP (KNCH) prides itself in its handling of complex litigation matters.” Source: RevenueBase Database · checked Sep 23, 2026
5	Walsworth LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	128 contacts →
	Indirect evidence “Walsworth was founded over 35 years ago based on a sincere commitment to leveraging our experience, resources, and perspectives to meet our clients’ individualized and evolving…” Source: RevenueBase Database · checked Sep 23, 2026
6	CDF Labor LAW LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	123 contacts →
	Indirect evidence “Ask business owners about their toughest challenges and at the top of the list is managing employees.” Source: RevenueBase Database · checked Sep 23, 2026
7	Brown Streza	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 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 23, 2026
8	Payne & Fears LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	90 contacts →
	Partial evidence “Payne & Fears LLP is a regional business law firm comprised of highly qualified and successful lawyers.” Source: RevenueBase Database · checked Sep 23, 2026
9	Wolfe & Wyman LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	74 contacts →
	Indirect evidence “WOLFE & WYMAN LLP is a civil litigation firm that assists corporate, institutional and individual clients with legal matters throughout the United States.” Source: RevenueBase Database · checked Sep 23, 2026
10	Everett Dorey	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	72 contacts →
	Indirect evidence “Everett Dorey LLP is a full service civil litigation firm.” Source: RevenueBase Database · checked Sep 23, 2026
11	Palmieri, Tyler, Wiener, Wilhelm & Waldron, LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 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 23, 2026
12	Berger Kahn	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	11-50	70 contacts →
	Partial evidence “Berger Kahn is a full-service law firm serving local, regional and national clients from our California base.” Source: RevenueBase Database · checked Sep 23, 2026
13	Macdonald & Cody, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	11-50	65 contacts →
	Indirect evidence “We founded Macdonald & Cody, LLP to provide effective, efficient and creative legal representation for our clients.” Source: RevenueBase Database · checked Sep 23, 2026
14	Jackson Tidus	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	59 contacts →
	Partial evidence “Jackson Tidus is a preeminent California full-service law firm widely known for providing innovative, top-quality and cost-effective legal solutions.” Source: RevenueBase Database · checked Sep 23, 2026
15	TLD LAW	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 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 23, 2026
16	Grant, Genovese & Baratta, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	54 contacts →
	Indirect evidence “At GGB, our business is protecting yours.” Source: RevenueBase Database · checked Sep 23, 2026
17	Mortenson Taggart Adams LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	53 contacts →
	Indirect evidence “We are business trial lawyers and strategic advisors.” Source: RevenueBase Database · checked Sep 23, 2026
18	Callahan, Thompson, Sherman & Caudill, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	11-50	47 contacts →
	Indirect evidence “Callahan, Thompson, Sherman & Caudill, LLP has been representing individuals and businesses in California for over 35 years in all areas of civil litigation including labor and…” Source: RevenueBase Database · checked Sep 23, 2026
19	Houser LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 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 23, 2026
20	Kimura London & White LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 23, 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 23, 2026
21	Murtaugh Attorneys At LAW	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 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 23, 2026
22	Kring & Chung, LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	51-200	32 contacts →
	Partial evidence “Kring & Chung, LLP is a full-service firm focusing on corporate, business, construction, real estate, employment and insurance laws.” Source: RevenueBase Database · checked Sep 23, 2026
23	Umberg Zipser LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	11-50	28 contacts →
	Partial evidence “Umberg/Zipser LLP is a premier business litigation law firm.” Source: RevenueBase Database · checked Sep 23, 2026
24	Smtd LAW LLP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	11-50	27 contacts →
	Partial evidence “SMTD Law LLP is proud to represent clients ranging in size from Fortune 100 companies to small businesses that require the depth and scope of our expertise in the fields of…” Source: RevenueBase Database · checked Sep 23, 2026
25	Manly, Stewart & Finaldi	Partial evidence	Irvine, CA, United StatesHQ checked Sep 23, 2026	11-50	27 contacts →
	Partial evidence “As a full-service law firm, Manly, Stewart & Finaldi is dedicated to providing our clients the professional and sophisticated representation they deserve.” Source: RevenueBase Database · checked Sep 23, 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: big 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 big law firms.
Partial evidence: Its own public description names part of big law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name big 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 169 big law firms based in Irvine, United States

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Big law firms based in Irvine, United States at a glance

As of Sep 23, 2026

58.4%Verified-email coverage

20.1Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

101

11-50

51-200

201-500

501-1,000

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 169 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 big 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 “big 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 big 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 big 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, 1,978 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 23, 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.

Big 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 big 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 big law firms are there based in Irvine, United States?

RevenueBase identified 169 big 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?

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

Which city in the United States has the most big law firms?

New York leads the United States with 1,216 headquartered companies, followed by Los Angeles (580) and Chicago (540). Irvine has 169.

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 1,978 verified decision-maker contacts tracked across these 169 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 23, 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.