Company lists · Data refreshed September 2026

Top 25 Business law firms based in Irvine, United States

Name: Business 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 20, 2026 167 companies tracked

RevenueBase identified 167 business law firms headquartered in Irvine, United States as of September 2026 and tracks 3,075 professional contacts across them, including 1,711 with verified work emails. New York is the largest hub.

This list covers business 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 20, 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 20, 2026 86% judged on-target in blind review

167Companies

3,075Contacts tracked

1,711Verified emails

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

Ranked by team size

Top 25 of 167 business law firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to business 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 20, 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 20, 2026
2	Rutan & Tucker, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 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 20, 2026
3	Kahana Feld	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	201-500	260 contacts →
	Strong evidence “Kahana Feld is a full-service law firm with offices throughout the United States.” Source: RevenueBase Database · checked Sep 20, 2026
4	Koeller, Nebeker, Carlson & Haluck	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 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 20, 2026
5	Walsworth LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 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 20, 2026
6	Brown Streza	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	91 contacts →
	Strong 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 20, 2026
7	Payne & Fears LLP	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	90 contacts →
	Strong evidence “Payne & Fears LLP is a regional business law firm comprised of highly qualified and successful lawyers.” Source: RevenueBase Database · checked Sep 20, 2026
8	Wolfe & Wyman LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 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 20, 2026
9	Palmieri, Tyler, Wiener, Wilhelm & Waldron, LLP	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	70 contacts →
	Strong evidence “Palmieri Tyler is one of Orange County's most prominent and well respected full service law firms.” Source: RevenueBase Database · checked Sep 20, 2026
10	Berger Kahn	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	70 contacts →
	Strong evidence “Berger Kahn is a full-service law firm serving local, regional and national clients from our California base.” Source: RevenueBase Database · checked Sep 20, 2026
11	Jackson Tidus	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	59 contacts →
	Strong 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 20, 2026
12	TLD LAW	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 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 20, 2026
13	Grant, Genovese & Baratta, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	54 contacts →
	Indirect evidence “At GGB, our business is protecting yours.” Source: RevenueBase Database · checked Sep 20, 2026
14	Mortenson Taggart Adams LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	53 contacts →
	Indirect evidence “We are business trial lawyers and strategic advisors.” Source: RevenueBase Database · checked Sep 20, 2026
15	Houser LLP	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	37 contacts →
	Strong 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 20, 2026
16	Kimura London & White LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 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 20, 2026
17	Murtaugh Attorneys At LAW	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	33 contacts →
	Strong 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 20, 2026
18	Kring & Chung, LLP	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	32 contacts →
	Strong 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 20, 2026
19	Umberg Zipser LLP	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	28 contacts →
	Strong evidence “Umberg/Zipser LLP is a premier business litigation law firm.” Source: RevenueBase Database · checked Sep 20, 2026
20	Smtd LAW LLP	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	27 contacts →
	Strong 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 20, 2026
21	Manly, Stewart & Finaldi	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	27 contacts →
	Strong 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 20, 2026
22	W&d Law, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
23	Shulman Bastian Friedman BUI & O'dea LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “Business Attorneys” Source: RevenueBase Database · checked Sep 20, 2026
24	Jc&company LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “JC & Company LLP is a professional firm committed to serving the needs of our clients.” Source: RevenueBase Database · checked Sep 20, 2026
25	Lubin Pham Caplin LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “If you own a home or a business, we’re here to help.” Source: RevenueBase Database · checked Sep 20, 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: business 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 business law firms.
Partial evidence: Its own public description names part of business law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business 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 167 business law firms based in Irvine, United States

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

As of Sep 20, 2026

55.6%Verified-email coverage

18.4Average contacts per company

1-10Median size (employees)

731.7%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

105

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 167 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 business 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 “business 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 business 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 business 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, 1,711 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 20, 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.

Business 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 business 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 business law firms are there based in Irvine, United States?

RevenueBase identified 167 business 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 has the most business law firms?

New York leads with 1222 headquartered companies, followed by Chicago (563) and Los Angeles (533).

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 1,711 verified decision-maker contacts tracked across these 167 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 20, 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.