Company lists · Data verified August 2026

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

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 32 companies tracked

There are 32 antitrust law firms headquartered in Los Angeles, United States (RevenueBase, August 2026). RevenueBase tracks 1,344 professional contacts across them, including 862 with verified work emails and 684 with mobile numbers. New York is the largest hub.

This list covers antitrust 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. Data current as of August 28, 2026.

32Companies

1,344Contacts tracked

862Verified emails

684Mobile numbers

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

Ranked by team size

Top 25 of 32 antitrust law firms based in Los Angeles, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Kelley Drye & Warren LLP	Los Angeles, CA	501-1,000	686	450
2	Econic Partners, LLC	Los Angeles, CA	201-500	271	181
3	Herzfeld Rubin, P.C	Los Angeles, CA	11-50	59	12
4	King, Holmes, Paterno & Soriano, LLP	Los Angeles	11-50	55	42
5	Kaplan FOX & Kilsheimer LLP	Los Angeles, CA	11-50	46	39
6	Lee, Hong, Degerman, Kang & Waimey	Los Angeles, CA	51-200	26	15
7	Waymaker LLP	Los Angeles, CA	11-50	24	23
8	Skiermont Derby LLP	Los Angeles, CA	11-50	23	22
9	BRS	Los Angeles, CA	1-10	20	10
10	Nozomi Sogo Attorneys At LAW	Los Angeles, CA	51-200	19	6
11	Park Lawless & Tremonti LLP	Los Angeles, CA	11-50	17	16
12	Cypress LLP	Los Angeles, CA	11-50	13	8
13	Holmes, Athey, Cowan & Mermelstein LLP	Los Angeles, CA	1-10	9	6
14	Orbit IP	Los Angeles, CA	1-10	9	6
15	Seki, Nishimura & Watase, LLP	Los Angeles, CA	11-50	8	6
16	Mohajerian, Aplc	Los Angeles, CA	11-50	8	2
17	Steinbrecher & Span LLP	Los Angeles, CA	11-50	7	6
18	Levatolaw, LLP	Los Angeles, CA	1-10	3	3
19	Bocchieri & Lachuk Intellectual LAW Group PC	Los Angeles, CA	1-10	3	2
20	Nakachi Eckhardt & Jacobson, P.C	Los Angeles, CA	1-10	3	1
21	Graves & Shaw LLP	Los Angeles, CA	1-10	2	2
22	Margolis & Tisman LLP	Los Angeles, CA	11-50	2	1
23	Reeder Mccreary, LLP	Los Angeles, CA	1-10	2	1
24	LAW Offices Of Theodore F. Monroe	Los Angeles, CA	1-10	1	1
25	Lachman Law, A Professional Corporation	Los Angeles, CA	1-10	1	1

Showing 25 of 32 antitrust law firms based in Los Angeles, United States

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

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 74 HQs

684Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Antitrust law firms by metro in the United States

Metro	Companies
Antitrust law firms in New York	74
Antitrust law firms in Washington	51
Antitrust law firms in Los Angeles	32
Antitrust law firms in Chicago	21
Antitrust law firms in Houston	18
Antitrust law firms in San Francisco	17
Antitrust law firms in Dallas	17
Antitrust law firms in Boston	14

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “antitrust law firms”, with match quality audited by blind human judging, and headquartered in Los Angeles, United States.
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: Contact records re-verify on a rolling cadence; 4 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many antitrust law firms are there based in Los Angeles, United States?

There are 32 antitrust law firms headquartered in Los Angeles, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Kelley Drye & Warren LLP, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most antitrust law firms?

New York leads with 74 headquartered companies, followed by Washington (51) and Los Angeles (32).

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 862 verified decision-maker contacts tracked across these 32 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.