Company lists · Data refreshed September 2026

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

Name: Infrastructure 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 21, 2026 89 companies tracked

RevenueBase identified 89 infrastructure law firms headquartered in Los Angeles, United States as of September 2026 and tracks 11,489 professional contacts across them, including 7,648 with verified work emails. Houston is the largest hub.

This list covers infrastructure 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 21, 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 21, 2026 86% judged on-target in blind review

89Companies

11,489Contacts tracked

7,648Verified emails

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

Ranked by team size

Top 25 of 89 infrastructure law firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure 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	Gibson Dunn	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,735 contacts →
	Partial evidence “Gibson Dunn is a leading global law firm, advising clients on significant transactions and disputes.” Source: RevenueBase Database · checked Sep 21, 2026
2	Manatt, Phelps & Phillips, LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	501-1,000	1,085 contacts →
	Indirect evidence “Forget everything you thought you knew about professional services firms.” Source: RevenueBase Database · checked Sep 21, 2026
3	Psomas	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	501-1,000	748 contacts →
	Indirect evidence “Our award-winning projects are produced through innovation, creativity, and technical expertise.” Source: RevenueBase Database · checked Sep 21, 2026
4	Allen Matkins	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	201-500	527 contacts →
	Partial evidence “Allen Matkins, a law firm with over 285 attorneys, was founded with deep roots in real estate and has leveraged that foundation to grow and build prominent litigation, corporate…” Source: RevenueBase Database · checked Sep 21, 2026
5	Cordoba Corporation	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	501-1,000	516 contacts →
	Indirect evidence “CORDOBA CORPORATION is a California engineering, construction management, program management, and planning firm specializing in transportation, water, energy, education and…” Source: RevenueBase Database · checked Sep 21, 2026
6	Nossaman LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 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 21, 2026
7	Cox, Castle & Nicholson LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	201-500	270 contacts →
	Indirect evidence “Cox, Castle & Nicholson LLP was founded in Los Angeles in 1968, with the goal of providing superior and comprehensive legal services to businesses, institutions, and individuals…” Source: RevenueBase Database · checked Sep 21, 2026
8	Musick, Peeler & Garrett	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	201-500	204 contacts →
	Partial evidence “Musick Peeler, a premier law firm with over 80 attorneys across five offices in major commercial centers of California, exemplifies excellence in legal service.” Source: RevenueBase Database · checked Sep 21, 2026
9	Michelman Robinson	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	158 contacts →
	Indirect evidence “At Michelman Robinson, strategy isn’t a step in the process-it’s the starting point.” Source: RevenueBase Database · checked Sep 21, 2026
10	Haight Brown & Bonesteel	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	157 contacts →
	Indirect evidence “From civil litigation to business transactions, Haight Brown & Bonesteel LLP provides practical and effective resolution advice to the most perplexing disputes, ranging from early…” Source: RevenueBase Database · checked Sep 21, 2026
11	Richards Watson Gershon	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	104 contacts →
	Indirect evidence “Richards, Watson & Gershon delivers practical advice and solutions tailored to the unique needs of public entities.” Source: RevenueBase Database · checked Sep 21, 2026
12	Elkins Kalt Weintraub Reuben Gartside LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	80 contacts →
	Partial evidence “Elkins Kalt Weintraub Reuben Gartside LLP is a full-service law firm founded by leading partners from nationally recognized firms in order to provide top-tier legal service and…” Source: RevenueBase Database · checked Sep 21, 2026
13	Russ, August & Kabat	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	75 contacts →
	Indirect evidence “Russ August & Kabat was founded in 1990 by Larry Russ, Rick August and Jules Kabat.” Source: RevenueBase Database · checked Sep 21, 2026
14	King, Holmes, Paterno & Soriano, LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 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 21, 2026
15	Brandow & Johnston	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	53 contacts →
	Indirect evidence “Our firm is proud to be identified among those who built the Los Angeles we see today.” Source: RevenueBase Database · checked Sep 21, 2026
16	JGM	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	47 contacts →
	Indirect evidence “JGM has offered a comprehensive array of design and construction related services to public and private sector clients for over 40 years.” Source: RevenueBase Database · checked Sep 21, 2026
17	Aecom Technology Corp	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	43 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
18	Orbach Huff & Henderson LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	41 contacts →
	Indirect evidence “David Orbach and David Huff founded the firm in 1997 and Phil Henderson joined in 2009.” Source: RevenueBase Database · checked Sep 21, 2026
19	Limnexus LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	39 contacts →
	Partial evidence “LimNexus is more than a law firm.” Source: RevenueBase Database · checked Sep 21, 2026
20	Chapman Glucksman	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	30 contacts →
	Partial evidence “Founded in 1985, Chapman Glucksman is a multi-faceted law firm with offices in Los Angeles, Orange County, Sacramento and the Bay Area.” Source: RevenueBase Database · checked Sep 21, 2026
21	Gnarus Advisors LLC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	29 contacts →
	Indirect evidence “Gnarus Advisors combines economic, scientific, engineering, and regulatory expertise to provide clients with multidimensional support on a wide range of challenges affecting their…” Source: RevenueBase Database · checked Sep 21, 2026
22	Koletsky Mancini Feldman LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	29 contacts →
	Indirect evidence “Koletsky, Mancini, Feldman & Morrow was founded in 1987 with one goal in mind, to provide its clients with the highest quality legal services in the most cost effective manner…” Source: RevenueBase Database · checked Sep 21, 2026
23	V&a, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
24	Lee, Hong, Degerman, Kang & Waimey	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	26 contacts →
	Indirect evidence “Established in 1991, LHDK & W has helped industry leaders across a broad array of sectors manage the complex challenges of succeeding in the global economy.” Source: RevenueBase Database · checked Sep 21, 2026
25	BDG LAW Group, A Professional LAW Corporation	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	21 contacts →
	Partial evidence “BDG Law Group's unique Client Services distinguish it from other law firms based on its problem-solving, short and long term strategies, superb litigators and results-oriented…” Source: RevenueBase Database · checked Sep 21, 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: infrastructure 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 infrastructure law firms.
Partial evidence: Its own public description names part of infrastructure law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure 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 89 infrastructure law firms based in Los Angeles, United States

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

As of Sep 21, 2026

66.6%Verified-email coverage

129.1Average contacts per company

11-50Median size (employees)

186.5%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 89 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 infrastructure 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 “infrastructure 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 infrastructure 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 infrastructure 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, 7,648 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 21, 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.

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

RevenueBase identified 89 infrastructure 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?

Gibson Dunn, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most infrastructure law firms?

Houston leads with 166 headquartered companies, followed by New York (162) and Washington (134).

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 7,648 verified decision-maker contacts tracked across these 89 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 21, 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.