Company lists · Data refreshed September 2026

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

Name: Environmental 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 12, 2026 76 companies tracked

RevenueBase identified 76 company matches for environmental law firms associated with Los Angeles, United States as of September 2026 and tracks 5,797 professional contacts across them, including 3,766 with verified work emails and 3,108 with mobile numbers. Across the United States, Washington is the largest hub for this category (133 companies); Los Angeles has 71.

This list covers company matches for environmental law firms associated with Los Angeles, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 12, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 12, 2026 How this list was built

76Companies

5,797Contacts tracked

3,766Verified emails

3,108Mobile numbers

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

Ranked by team size

Top 25 of 76 company matches for environmental law firms based in Los Angeles, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 12, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Allen Matkins	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	201-500	527 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
2	Munger, Tolles & Olson LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	201-500	521 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
3	Nossaman LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	201-500	332 contacts →
	Exact match “Nossaman LLP is a national law firm with attorneys and policy advisors located in 12 offices throughout the United States.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
4	Cox, Castle & Nicholson LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	201-500	270 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
5	Jeffer Mangels Butler & Mitchell LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	201-500	258 contacts →
	Exact match “Jeffer Mangels Butler & Mitchell LLP (JMBM) is a full service law firm of approximately 120 lawyers.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
6	Musick, Peeler & Garrett	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	201-500	204 contacts →
	Exact match “Musick Peeler, a premier law firm with over 80 attorneys across five offices in major commercial centers of California, exemplifies excellence in legal service.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
7	Glaser Weil	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	51-200	172 contacts →
	Exact match “Glaser Weil is a premier law firm headquartered in Los Angeles with outstanding experience and market-leading successes in litigation, corporate, intellectual property and real…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
8	Haight Brown & Bonesteel	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	51-200	157 contacts →
	Exact match “From civil litigation to business transactions, Haight Brown & Bonesteel LLP provides practical and effective resolution advice to the most perplexing disputes, ranging from early…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
9	Richards Watson Gershon	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	51-200	104 contacts →
	Exact match “Richards, Watson & Gershon delivers practical advice and solutions tailored to the unique needs of public entities.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
10	Hill, Farrer & Burrill LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	51-200	67 contacts →
	Exact match “Hill Farrer attorneys have successfully handled thousands of transactions and won thousands of cases.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
11	Yukevich Cavanaugh	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	51-200	66 contacts →
	Exact match “Founded in 1995, Yukevich \| Cavanaugh is one of the nation’s top litigation firms, providing innovative and aggressive case management and trial techniques at all stages of…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
12	King, Holmes, Paterno & Soriano, LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	56 contacts →
	Exact match “The attorneys at King, Holmes, Paterno & Soriano, LLP provide innovative thinking, cutting edge deal making and powerful litigation and business strategies to our clients.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
13	Yoka Smith, LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	51-200	47 contacts →
	Exact match “At Yoka \| Smith, our focus is representing businesses in high-exposure lawsuits in a variety of legal practice areas.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
14	Hurrell Cantrall LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	43 contacts →
	Exact match “Hurrell Cantrall LLP is a civil defense litigation and appellate firm that concentrates in the areas of employment law, environmental law, general liability, governmental entity…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
15	Orbach Huff & Henderson LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	41 contacts →
	Exact match “David Orbach and David Huff founded the firm in 1997 and Phil Henderson joined in 2009.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
16	Chapman Glucksman	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	30 contacts →
	Exact match “Founded in 1985, Chapman Glucksman is a multi-faceted law firm with offices in Los Angeles, Orange County, Sacramento and the Bay Area.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
17	LTL Attorneys LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	51-200	29 contacts →
	Exact match “Trusted by general counsel of leading global companies, our highly skilled lawyers focus solely on trials and litigation.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
18	Koletsky Mancini Feldman LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	29 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
19	Pond North LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	27 contacts →
	Exact match “Pond North LLP provides strategic litigation defense to its clients.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
20	Lee, Hong, Degerman, Kang & Waimey	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	51-200	26 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
21	Impact Sciences	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	18 contacts →
	Exact match “Informing communities and creating a clear path to understanding are at the core of what we do at Impact Sciences.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
22	Park Lawless & Tremonti LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	17 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
23	Manning, Leaver, Bruder & Berberich, LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	12 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
24	Booth LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	11-50	11 contacts →
	Exact match “BOOTH LLP is a dynamic firm of skilled, veteran attorneys, specializing in efficient, aggressive representation of our clients in litigation and transactional matters.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
25	Rand Paster & Nelson LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 12, 2026	1-10	11 contacts →
	Exact match “Rand Paster & Nelson LLP is a boutique law firm practicing in the fields of land use, government, municipal advocacy, and environmental law, including associated litigation.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental law firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 76 environmental law firms based in Los Angeles, United States

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

As of Sep 12, 2026

65.0%Verified-email coverage

53.6%Mobile-number coverage

76.3Average contacts per company

11-50Median size (employees)

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 15.0d

3,1990–30

53431–60

2461–90

590–180

4180+

Company record updated

Median 69.0d

00–30

2,79831–60

2,28761–90

46190–180

251180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Los Angeles, United States whose business descriptions match “environmental law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,766 professional contacts with verified work emails across the full matched dataset. 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 12, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Environmental law firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 76 company matches for environmental law firms associated with Los Angeles, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Allen Matkins tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

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

Washington leads the United States with 133 company records, followed by New York (127) and Houston (112). Los Angeles has 71.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,766 professional contacts with verified work emails tracked across these 76 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 12, 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 SmartSearch, 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.