Company lists · Data refreshed September 2026

Top 25 Constitutional law firms based in Los Angeles, United States

Name: Constitutional law firms based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 8, 2026 70 companies tracked

RevenueBase identified 70 constitutional law firms headquartered in Los Angeles, United States as of September 2026 and tracks 2,206 professional contacts across them, including 983 with verified work emails and 1,013 with mobile numbers. New York is the largest hub.

This list covers constitutional law firms headquartered in Los Angeles, 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 8, 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 8, 2026 86% judged on-target in blind review

70Companies

2,206Contacts tracked

983Verified emails

1,013Mobile numbers

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The 25 largest constitutional law firms based in Los Angeles, United States

Ranked by team size

Top 25 of 70 constitutional law firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to constitutional 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	Munger, Tolles & Olson LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	201-500	521 contacts →
	Indirect evidence “Munger, Tolles & Olson is a 200-lawyer firm based in Los Angeles with a national practice representing clients in a broad range of complex and high-profile matters.” Source: RevenueBase Database · checked Sep 8, 2026
2	The United Firm LA Liga Defensora, APC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	1,001-5,000	518 contacts →
	Indirect evidence “The United Firm \| La Liga Defensora, A.P.C.” Source: RevenueBase Database · checked Sep 8, 2026
3	Nossaman LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	201-500	332 contacts →
	Partial evidence “Nossaman LLP is a national law firm with attorneys and policy advisors located in 12 offices throughout the United States.” Source: RevenueBase Database · checked Sep 8, 2026
4	Manning Kass	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	201-500	282 contacts →
	Partial evidence “Founded in 1994 with just 16 attorneys and two practice areas, Manning Kass is today a top-tier full-service national law firm with more than 170 Attorneys, 8 offices, and 35…” Source: RevenueBase Database · checked Sep 8, 2026
5	LA Follette, Johnson, Dehaas, Fesler & Ames	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	51-200	105 contacts →
	Indirect evidence “STABILITY For more than 50 years, LaFollette Johnson has been the preeminent civil litigation firm in California.” Source: RevenueBase Database · checked Sep 8, 2026
6	King, Holmes, Paterno & Soriano, LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	56 contacts →
	Indirect evidence “The attorneys at King, Holmes, Paterno & Soriano, LLP provide innovative thinking, cutting edge deal making and powerful litigation and business strategies to our clients.” Source: RevenueBase Database · checked Sep 8, 2026
7	DTO LAW	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	28 contacts →
	Partial evidence “Founded by former Big Law attorneys, DTO Law is an elite boutique with offices in Los Angeles, Silicon Valley, and New York, though our attorneys handle cases and matters across…” Source: RevenueBase Database · checked Sep 8, 2026
8	Berkes Crane Santana & Spangler LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	23 contacts →
	Partial evidence “Berkes Crane Santana & Spangler LLP Joins MG+M The Law Firm Effective October 1, 2025, our team at Berkes Crane Santana & Spangler has joined MG+M The Law Firm (MG+M), a national…” Source: RevenueBase Database · checked Sep 8, 2026
9	Cohen Williams LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	18 contacts →
	Indirect evidence “Cohen Williams is a California-based litigation boutique with national reach.” Source: RevenueBase Database · checked Sep 8, 2026
10	Allred, Maroko & Goldberg	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	18 contacts →
	Partial evidence “Our firm was founded in 1976 by Gloria Allred, Michael Maroko, and Nathan Goldberg, who were classmates at and graduates from Loyola Law School.” Source: RevenueBase Database · checked Sep 8, 2026
11	Park Lawless & Tremonti LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	17 contacts →
	Partial evidence “With more than a century of combined experience at some of the preeminent Am Law 50 international law firms, our lawyers bring extensive experience in complex litigation and…” Source: RevenueBase Database · checked Sep 8, 2026
12	The LAW Offices Of Nigel Burns	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	1-10	14 contacts →
	Partial evidence “The Law Offices of Nigel Burns is a dynamic boutique firm serving all of Southern California, including Los Angeles, Orange County and Long Beach, and is dedicated to providing…” Source: RevenueBase Database · checked Sep 8, 2026
13	Geragos & Geragos, APC	Partial evidence	Los Angeles, United StatesHQ checked Sep 8, 2026	11-50	13 contacts →
	Partial evidence “Geragos & Geragos, APC, is a boutique law firm focusing on complex civil litigation and criminal defense, with offices in downtown Los Angeles and New York.” Source: RevenueBase Database · checked Sep 8, 2026
14	Manning, Leaver, Bruder & Berberich, LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	12 contacts →
	Indirect evidence “We at Manning, Leaver, Bruder & Berberich, LLP are proud that for over 95 years our clients have trusted us to help them with their legal needs.” Source: RevenueBase Database · checked Sep 8, 2026
15	Enso LAW L.L.P	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	11 contacts →
	Partial evidence “Law firm dedicated to our clients, the law, and justice.” Source: RevenueBase Database · checked Sep 8, 2026
16	Nassiri & Jung LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	11 contacts →
	Partial evidence “Nassiri & Jung attorneys focus on complex litigation, employment law, and appeals.” Source: RevenueBase Database · checked Sep 8, 2026
17	Reed & Davidson, LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	10 contacts →
	Partial evidence “Reed & Davidson, LLP, is a boutique law firm specializing in political ethics law, nonprofit organizational law, and political compliance services.” Source: RevenueBase Database · checked Sep 8, 2026
18	Holmes, Athey, Cowan & Mermelstein LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	1-10	9 contacts →
	Indirect evidence “A partnership of skilled civil and criminal lawyers specializing in- Complex Civil Litigation- State and Federal Securities and Commodities Regulatory and Enforcement Actions; and…” Source: RevenueBase Database · checked Sep 8, 2026
19	Seki, Nishimura & Watase, LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	8 contacts →
	Partial evidence “Seki, Nishimura & Watase, LLP is a law firm in Los Angeles, California.” Source: RevenueBase Database · checked Sep 8, 2026
20	Eisner Gorin Llp, LOS Angeles Criminal Defense Firm	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	1-10	8 contacts →
	Partial evidence “With over 30 years courtroom experience, Eisner Gorin trial lawyers are State-Bar Criminal Law Specialists specializing in high-stakes trial and appeals matters.” Source: RevenueBase Database · checked Sep 8, 2026
21	LAW Offices Of Todd M. Friedman, PC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	8 contacts →
	Partial evidence “Personal Injury, Consumer litigation, including the Fair Debt Collection Practices Act (FDCPA), Lemon Law, fair credit reporting, truth in lending litigation and Telephone…” Source: RevenueBase Database · checked Sep 8, 2026
22	Steinbrecher & Span LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	7 contacts →
	Indirect evidence “Steinbrecher & Span LLP is a preeminent Los Angeles #businesslitigation, transactional and regulatory firm with offices in downtown Los Angeles, California, Washington, D.C.” Source: RevenueBase Database · checked Sep 8, 2026
23	Loyr, APC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	1-10	7 contacts →
	Indirect evidence “With our extensive combined experience in state and federal courts, the litigation lawyers at LOYR possess vast experience representing clients in all civil litigation matters.” Source: RevenueBase Database · checked Sep 8, 2026
24	Chudnovsky LAW	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	6 contacts →
	Partial evidence “We built Chudnovsky Law on a simple premise: when your career, professional license, or freedom is on the line, you deserve an elite team that has spent decades on the other side…” Source: RevenueBase Database · checked Sep 8, 2026
25	Olmos & Reynolds LAW Group LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 8, 2026	11-50	5 contacts →
	Indirect evidence “Call (323) 951-0144 to speak with our results driven attorneys to Get Help Now!” Source: RevenueBase Database · checked Sep 8, 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: constitutional 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 constitutional law firms.
Partial evidence: Its own public description names part of constitutional law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name constitutional 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 constitutional law firms based in Los Angeles, United States

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Constitutional law firms based in Los Angeles, United States at a glance

As of Sep 8, 2026

44.6%Verified-email coverage

45.9%Mobile-number coverage

31.5Average contacts per company

1-10Median size (employees)

217.1%Largest-city concentration · New York

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 11.0d

8980–30

8131–60

161–90

190–180

2180+

Company record updated

Median 70.0d

00–30

99431–60

92261–90

18990–180

101180+

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 constitutional 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 Los Angeles, United States whose own description of what they do matches “constitutional 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 constitutional 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 constitutional law firms, and records with no verified work email. Companies headquartered outside Los Angeles 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, 983 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 8, 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.

Constitutional law firms by metro in the United States

Constitutional law firms in New York152
Constitutional law firms in Washington94
Constitutional law firms in Los Angeles72
Constitutional law firms in Chicago70
Constitutional law firms in Houston63
Constitutional law firms in Atlanta53
Constitutional law firms in Denver45
Constitutional law firms in Dallas42

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 constitutional 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 constitutional law firms are there based in Los Angeles, United States?

RevenueBase identified 70 constitutional law firms headquartered in Los Angeles, 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?

Munger, Tolles & Olson LLP, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most constitutional law firms?

New York leads with 152 headquartered companies, followed by Washington (94) and Los Angeles (72).

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 983 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 8, 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.