Company lists · Data refreshed September 2026

Top 25 Environmental liability law firms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 2,569 companies tracked

RevenueBase identified 2,569 company matches for environmental liability law firms associated with the United States as of September 2026 and tracks 74,710 professional contacts across them, including 41,738 with verified work emails. New York is the largest hub.

This list covers company matches for environmental liability law firms associated with the 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 28, 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 28, 2026 How this list was built

2,569Companies

74,710Contacts tracked

41,738Verified emails

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The 25 largest environmental liability law firms based in the United States

Ranked by team size

Top 25 of 2,569 company matches for environmental liability law firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Arnold & Porter	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,333 contacts →
	Exact match “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Nelson Mullins Riley & Scarborough	Exact match	Columbia, SC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,012 contacts →
	Exact match “Established in 1897, Nelson Mullins is an Am Law 100 firm of more than attorneys, policy advisors and professionals with 33 offices in 17 states and Washington, D.C.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Venable LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,790 contacts →
	Exact match “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Ballard Spahr LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,682 contacts →
	Exact match “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Shook, Hardy & Bacon L.L.P	Exact match	Kansas City, MO, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,450 contacts →
	Exact match “Shook, Hardy & Bacon has long been recognized as one of the premier litigation firms in the country.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Buchanan Ingersoll & Rooney PC	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 28, 2026	501-1,000	1,197 contacts →
	Exact match “Buchanan Ingersoll & Rooney is a national law firm with a proven reputation for providing progressive, industry-leading legal, business, regulatory and government relations advice…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Jenner & Block	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	1,194 contacts →
	Exact match “At Jenner & Block, we shape what’s next through experience, vision, and judgment.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Marshall Dennehey	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,147 contacts →
	Exact match “Welcome to our company page!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Brownstein Hyatt Farber Schreck	Exact match	Denver, CO, United StatesHQ recorded Sep 28, 2026	501-1,000	902 contacts →
	Exact match “For decades, we’ve positioned ourselves at the intersection of law, business and policy to bring a multidisciplinary strategy to every issue.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Steptoe & Johnson Pllc	Exact match	Bridgeport, WV, United StatesHQ recorded Sep 28, 2026	501-1,000	757 contacts →
	Exact match “Steptoe & Johnson PLLC is a law firm nationally recognized for its strengths in energy law with more than a century of know-how in the areas of business, employment, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Kelley Drye & Warren LLP	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	690 contacts →
	Exact match “Kelley Drye is an AmLaw 200 law firm of more than 350 lawyers and other professionals practicing in New York, NY; Washington, D.C; Chicago, IL; Houston, TX, Los Angeles, CA; San…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Antea Group USA	Exact match	St. Paul, MN, United StatesHQ recorded Sep 28, 2026	1,001-5,000	658 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Robinson Cole	Exact match	Hartford, CT, United StatesHQ recorded Sep 28, 2026	201-500	622 contacts →
	Exact match “Robinson+Cole is a service mark of Robinson & Cole LLP, a law firm with offices throughout the Northeast, Mid-Atlantic, Florida, and California serving regional, national, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Parker POE Adams & Bernstein LLP	Exact match	Charlotte, NC, United StatesHQ recorded Sep 28, 2026	501-1,000	584 contacts →
	Exact match “Businesses and local governments turn to Parker Poe to structure transactions, navigate regulations, and resolve disputes.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	O'hagan Meyer	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	579 contacts →
	Exact match “As a national law firm defending corporations, non-profits, associations and their officers & directors in every manner of litigation, O'Hagan Meyer provides individualized…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Wiley Rein LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	501-1,000	576 contacts →
	Exact match “Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Eckert Seamans	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 28, 2026	501-1,000	570 contacts →
	Exact match “Eckert Seamans Cherin & Mellott LLC has lawyers in offices throughout the United States, including Harrisburg, Philadelphia, and Pittsburgh, Pennsylvania; Boston, Massachusetts…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Bowman And Brooke	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 28, 2026	501-1,000	537 contacts →
	Exact match “Bowman and Brooke LLP is a nationally recognized trial firm with one of the largest product liability practices in the country.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Boies Schiller Flexner LLP	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	537 contacts →
	Exact match “A firm of internationally recognized trial lawyers, crisis managers, and strategic advisors known for our creative, aggressive, and efficient pursuit of success for our clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Weitz & Luxenberg PC	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	201-500	530 contacts →
	Exact match “Weitz & Luxenberg is New York City’s largest personal injury and mass-tort plaintiffs’ law firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Best Best & Krieger LLP BBK	Exact match	Riverside, CA, United StatesHQ recorded Sep 28, 2026	201-500	522 contacts →
	Exact match “Best Best & Krieger serves as a trusted partner and strategist to public and private sector clients across the nation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Munger, Tolles & Olson LLP	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
23	Thompson, Coe, Cousins & Irons L.L.P	Exact match	Dallas, TX, United StatesHQ recorded Sep 28, 2026	201-500	513 contacts →
	Exact match “Thompson Coe has been providing legal services to clients both regionally and nationally for more than 70 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Rincon Consultants	Exact match	Ventura, CA, United StatesHQ recorded Sep 28, 2026	501-1,000	479 contacts →
	Exact match “Rincon Consultants is a multi-disciplinary environmental sciences, planning, and engineering consulting firm that provides quality professional services to government and industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Balch & Bingham LLP	Exact match	Birmingham, AL, United StatesHQ recorded Sep 28, 2026	201-500	472 contacts →
	Exact match “Balch & Bingham LLP is a full-service corporate law firm recognized nationally for its genuine dedication to its clients, forward-thinking approach, and ability to anticipate what…” Recorded in the RevenueBase company graph · Sep 28, 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 liability 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 2,569 environmental liability law firms based in the United States

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Environmental liability law firms based in the United States at a glance

As of Sep 28, 2026

55.9%Verified-email coverage

29.1Average contacts per company

11-50Median size (employees)

3.3%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,255

11-50

932

51-200

299

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,569 companies.

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 the United States whose business descriptions match “environmental liability 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 41,738 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 28, 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 liability law firms by metro

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 liability law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental liability law firms are there based in the United States?

RevenueBase identified 2,569 company matches for environmental liability law firms associated with the 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?

Arnold & Porter tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most environmental liability law firms?

New York leads with 84 company records, followed by Houston (77) and Washington (65).

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 41,738 professional contacts with verified work emails tracked across these 2,569 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 28, 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.