Company lists · Data refreshed September 2026

Top 25 Environmental law firms based in New Orleans, United States

Name: Environmental law firms based in New Orleans, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 44 companies tracked

RevenueBase identified 44 environmental law firms headquartered in New Orleans, United States as of September 2026 and tracks 1,582 professional contacts across them, including 978 with verified work emails. Washington is the largest hub.

This list covers environmental law firms headquartered in New Orleans, 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 14, 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 14, 2026 86% judged on-target in blind review

44Companies

1,582Contacts tracked

978Verified emails

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The 25 largest environmental law firms based in New Orleans, United States

Ranked by team size

Top 25 of 44 environmental law firms based in New Orleans, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to environmental 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	Galloway Johnson Tompkins Burr & Smith	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	201-500	328 contacts →
	Indirect evidence “Galloway Johnson Tompkins Burr & Smith stands ready as a premier corporate defense and litigation firm in the Gulf South and Midwest to be your strategic advisor.” Source: RevenueBase Database · checked Sep 14, 2026
2	Liskow	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	201-500	259 contacts →
	Indirect evidence “Liskow was founded in 1935 and includes nearly 150 lawyers across our five offices, strategically located in New Orleans, Lafayette, and Baton Rouge, Louisiana, Houston, Texas…” Source: RevenueBase Database · checked Sep 14, 2026
3	Deutsch Kerrigan, L.L.P	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	51-200	140 contacts →
	Indirect evidence “Founded in New Orleans in 1926 by Eberhard Deutsch and Emmett Kerrigan, Deutsch Kerrigan LLP is built on the foundation that we are problem-solvers, applying enduring principles…” Source: RevenueBase Database · checked Sep 14, 2026
4	Taylor, Wellons, Politz & Duhe, LLC	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	51-200	127 contacts →
	Indirect evidence “At Taylor, Wellons, Politz & Duhe, LLC, we understand that our success is inextricably linked with our clients' goals and interests.” Source: RevenueBase Database · checked Sep 14, 2026
5	Chaffe Mccall, L.L.P	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	51-200	105 contacts →
	Partial evidence “Chaffe McCall LLP is a full-service law firm centrally located in downtown New Orleans, with additional offices in Houston, and Baton Rouge.” Source: RevenueBase Database · checked Sep 14, 2026
6	Sher Garner Cahill Richter Klein And Hilbert, LLC	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	51-200	92 contacts →
	Indirect evidence “At Sher Garner Cahill Richter Klein & Hilbert, L.L.C.” Source: RevenueBase Database · checked Sep 14, 2026
7	Peiffer Wolf Carr Kane Conway & Wise, LLP	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	68 contacts →
	Partial evidence “Peiffer Wolf Carr Kane Conway & Wise, LLP is a full-service litigation law firm with offices in New Orleans, Cleveland, Los Angeles, San Francisco, St.” Source: RevenueBase Database · checked Sep 14, 2026
8	Simon Peragine Smith & Redfearn	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	68 contacts →
	Indirect evidence “Simon, Peragine, Smith & Redfearn was founded in New Orleans in 1979 by a small group of talented attorneys committed to providing efficient quality legal services.” Source: RevenueBase Database · checked Sep 14, 2026
9	Pugh Accardo LLC	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	42 contacts →
	Partial evidence “We are a law firm with offices in downtown New Orleans and Mandeville, Louisiana.” Source: RevenueBase Database · checked Sep 14, 2026
10	Barrasso Usdin Kupperman Freeman & Sarver, L.L.C	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	51-200	39 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
11	Kuchler Polk Weiner	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	38 contacts →
	Partial evidence “Kuchler Polk Weiner, LLC is a woman-owned law firm.” Source: RevenueBase Database · checked Sep 14, 2026
12	Christovich & Kearney, LLP	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	29 contacts →
	Indirect evidence “Our founders believed in quality work, diligence, personal service, cost-effective representation, and high standards of ethics and professionalism.” Source: RevenueBase Database · checked Sep 14, 2026
13	Flanagan Partners LLP	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	26 contacts →
	Partial evidence “Flanagan Partners is a New Orleans law firm that litigates complex civil cases, handles high-stakes appeals, and negotiates oil-and-gas contracts.” Source: RevenueBase Database · checked Sep 14, 2026
14	Mccranie, Sistrunk, Anzelmo, Hardy, Mcdaniel & Welch LLC	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	51-200	23 contacts →
	Partial evidence “McCranie, Sistrunk, Anzelmo, Hardy, McDaniel & Welch LLC is an experienced, aggressive law firm providing a broad spectrum of legal services to corporate and individual clients.” Source: RevenueBase Database · checked Sep 14, 2026
15	Couhig Partners, LLC	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	20 contacts →
	Partial evidence “Couhig Partners is a New Orleans based law firm with a simple mission: to provide our clients with exemplary legal services in an efficient and cost effective manner that is…” Source: RevenueBase Database · checked Sep 14, 2026
16	Stag Liuzza, LLC	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	20 contacts →
	Partial evidence “Stag Liuzza is a plaintiff-oriented law firm.” Source: RevenueBase Database · checked Sep 14, 2026
17	Plauche Maselli Parkerson LLP	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	18 contacts →
	Indirect evidence “For the past four decades (since our founding in 1981), Plauché Maselli Parkerson has exceeded in the always challenging defense litigation field.” Source: RevenueBase Database · checked Sep 14, 2026
18	Pusateri Johnston Guillot & Greenbaum LLC	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	51-200	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
19	Salley, Hite, Mercer & Resor LLC	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	16 contacts →
	Indirect evidence “Salley, Hite, Mercer & Resor (SHM & R) was founded in April of 2004 with the goal of providing outstanding legal services with competitive rates.” Source: RevenueBase Database · checked Sep 14, 2026
20	Lambert Zainey Smith & Soso	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	1-10	12 contacts →
	Indirect evidence “Lambert Zainey has the tools and the talent to successfully represent our clients in a wide range of civil litigation.” Source: RevenueBase Database · checked Sep 14, 2026
21	Elkins PLC	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	10 contacts →
	Partial evidence “Elkins PLC is a law practice company based out of 201 Saint Charles Ave # 4400, New Orleans, Louisiana, United States.” Source: RevenueBase Database · checked Sep 14, 2026
22	Jones, Swanson, Huddell & Garrison, LLC	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	10 contacts →
	Indirect evidence “At Jones Swanson, we’ve put together a team of attorneys with a wide array of interests and backgrounds-not only in litigation, but also in science, government service…” Source: RevenueBase Database · checked Sep 14, 2026
23	Kanner & Whiteley, L.L.C	Indirect evidence	New Orleans, United StatesHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
24	Kelly Hart Pitre	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	11-50	7 contacts →
	Partial evidence “Kelly Hart Pitre’s team of Louisiana lawyers focuses on energy and environmental matters.” Source: RevenueBase Database · checked Sep 14, 2026
25	The Carter Firm	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Indirect evidence “The Carter Firm provides high quality legal services to corporate defendants and select plaintiffs.” Source: RevenueBase Database · checked Sep 14, 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: environmental 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 environmental law firms.
Partial evidence: Its own public description names part of environmental law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental 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 44 environmental law firms based in New Orleans, United States

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Environmental law firms based in New Orleans, United States at a glance

As of Sep 14, 2026

61.8%Verified-email coverage

36.0Average contacts per company

11-50Median size (employees)

288.6%Largest-city concentration · Washington

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for New Orleans, so it is reported there. Company counts and contact totals on this page are exact for New Orleans, over 44 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 environmental 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 New Orleans, United States whose own description of what they do matches “environmental 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 environmental 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 environmental law firms, and records with no verified work email. Companies headquartered outside New Orleans 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, 978 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 14, 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.

Environmental 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 environmental 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 environmental law firms are there based in New Orleans, United States?

RevenueBase identified 44 environmental law firms headquartered in New Orleans, 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?

Galloway Johnson Tompkins Burr & Smith, headquartered in New Orleans, tops this list with the largest team on record.

Which city has the most environmental law firms?

Washington leads with 127 headquartered companies, followed by Houston (112) and New York (111).

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 978 verified decision-maker contacts tracked across these 44 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 14, 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.