Company lists · Data refreshed September 2026

Top 25 Environmental law firms based in Dallas, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 57 companies tracked

RevenueBase identified 57 environmental law firms headquartered in Dallas, United States as of September 2026 and tracks 1,974 professional contacts across them, including 899 with verified work emails and 1,141 with mobile numbers. Washington is the largest hub.

This list covers environmental law firms headquartered in Dallas, 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 12, 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 12, 2026 86% judged on-target in blind review

57Companies

1,974Contacts tracked

899Verified emails

1,141Mobile numbers

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The 25 largest environmental law firms based in Dallas, United States

Ranked by team size

Top 25 of 57 environmental law firms based in Dallas, United States, ranked by team size, largest first. Data refreshed Sep 12, 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	Jackson Walker LLP	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	501-1,000	968 contacts →
	Partial evidence “Jackson Walker is a Texas-based law firm with a national presence and global reach.” Source: RevenueBase Database · checked Sep 12, 2026
2	Fee, Smith & Sharp LLP	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	51-200	147 contacts →
	Partial evidence “With strong Texas roots and a reputation for success in high-stakes litigation, Fee, Smith & Sharp is a national law firm providing incisive, industry-leading business, legal and…” Source: RevenueBase Database · checked Sep 12, 2026
3	Hartline Barger	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	51-200	105 contacts →
	Indirect evidence “Founded in Texas in 1994 by attorneys with a passion for trying cases, Hartline Barger is known nationwide for its litigation prowess in high-profile cases.” Source: RevenueBase Database · checked Sep 12, 2026
4	Waters Kraus Paul & Siegel	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	51-200	96 contacts →
	Partial evidence “Waters Kraus Paul & Siegel is a national plaintiffs' law firm concentrating on complex product liability, toxic tort, and personal injury/wrongful death cases.” Source: RevenueBase Database · checked Sep 12, 2026
5	Macdonald Devin Madden Kenefick & Harris, P.C	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	51-200	87 contacts →
	Partial evidence “For 30+ years, the attorneys at the Dallas-based law firm of Macdonald Devin Madden Kenefick & Harris, P.C.” Source: RevenueBase Database · checked Sep 12, 2026
6	Godwin Bowman PC	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	51-200	49 contacts →
	Partial evidence “Godwin Bowman PC, based in Dallas, Texas is a mid-size trial and appellate law firm with a national practice that represents Fortune 500 and middle-market industry leaders in…” Source: RevenueBase Database · checked Sep 12, 2026
7	Calhoun, Bhella & Sechrest, LLP	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	11-50	30 contacts →
	Partial evidence “With offices coast to coast, Calhoun, Bhella & Sechrest, LLP is a boutique law firm made up of a national team of lawyers trained at some of the biggest firms in the country.” Source: RevenueBase Database · checked Sep 12, 2026
8	Cunningham Swaim, LLP	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	11-50	21 contacts →
	Indirect evidence “At Cunningham Swaim, we are trial lawyers that solve problems.” Source: RevenueBase Database · checked Sep 12, 2026
9	Estes Thorne Ewing & Payne	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	11-50	20 contacts →
	Partial evidence “Estes Thorne Ewing & Payne is a Dallas-based law firm dedicated to providing superior, client-focused legal services.” Source: RevenueBase Database · checked Sep 12, 2026
10	Passman & Jones, A Professional Corporation	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	11-50	18 contacts →
	Indirect evidence “We are a diverse group of highly regarded attorneys practicing in a distinct culture where teamwork and integrity are prized.” Source: RevenueBase Database · checked Sep 12, 2026
11	Steckler Wayne & Love Pllc	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	11-50	13 contacts →
	Indirect evidence “At Steckler Wayne Cochran Cherry, our commitment to fairness, integrity and justice combined with our willingness to be innovative and aggressive provides our clients with a legal…” Source: RevenueBase Database · checked Sep 12, 2026
12	Gibson Herod Law, Dallas	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	11 contacts →
	Indirect evidence “Our business is, quite literally, your business.” Source: RevenueBase Database · checked Sep 12, 2026
13	Ziegler Gardner Bell, Pllc	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	11-50	10 contacts →
	Partial evidence “DFW-based full-service law firm with clients in the architecture, engineering, and construction industries globally, nationwide, statewide, and locally.” Source: RevenueBase Database · checked Sep 12, 2026
14	Schulz Trade LAW Pllc	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	11-50	10 contacts →
	Partial evidence “Schulz Trade Law PLLC is a solution-focused law firm that thoughtfully leads corporate clients through the regulatory challenges of international commerce.” Source: RevenueBase Database · checked Sep 12, 2026
15	Sumner LAW LLP	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	11-50	9 contacts →
	Partial evidence “For more than three decades, our distinguished trial lawyers and corporate attorneys have represented businesses and individuals in high-stakes litigation and business law matters.” Source: RevenueBase Database · checked Sep 12, 2026
16	Campbell & Associates LAW Firm, PC	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	9 contacts →
	Partial evidence “Campbell & Associates Law Firm, P.C.” Source: RevenueBase Database · checked Sep 12, 2026
17	The Presti LAW Firm, Pllc	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	8 contacts →
	Partial evidence “The Presti Law Firm, PLLC is a full-service law firm located in Dallas, Texas.” Source: RevenueBase Database · checked Sep 12, 2026
18	Kizzia Johnson Pllc	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	6 contacts →
	Indirect evidence “WE ARE THE ANSWER TO YOUR LEGAL PROBLEM.” Source: RevenueBase Database · checked Sep 12, 2026
19	Allen Stewart, P.C	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	5 contacts →
	Indirect evidence “When big business harms the interests of innocent people and even entire communities, those victims need a strong advocate with proven success.” Source: RevenueBase Database · checked Sep 12, 2026
20	Koning Rubarts LLP	Indirect evidence	Dallas, United StatesHQ checked Sep 12, 2026	1-10	5 contacts →
	Indirect evidence “Experienced, first-chair trial lawyers for complex business litigation” Source: RevenueBase Database · checked Sep 12, 2026
21	David Allen LAW Group, Pllc	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	5 contacts →
	Partial evidence “David Allen Law Group has earned a reputation for legal excellence combined with an unrelenting efficiency that delivers the cost-effective results our clients demand.” Source: RevenueBase Database · checked Sep 12, 2026
22	Travis & Inman	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	5 contacts →
	Partial evidence “Travis & Inman, a Professional Corporation, is dedicated to providing its clients results-oriented, business law services.” Source: RevenueBase Database · checked Sep 12, 2026
23	BEC Environmental	Partial evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	5 contacts →
	Partial evidence “BEC Environmental is a leading environmental consulting firm specializing in a wide array of environmental services for companies across the United States.” Source: RevenueBase Database · checked Sep 12, 2026
24	Guida Slavich & Flores, P.C	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	4 contacts →
	Indirect evidence “Guida, Slavich & Flores, P.C.” Source: RevenueBase Database · checked Sep 12, 2026
25	S. Deatherage LAW	Strong evidence	Dallas, TX, United StatesHQ checked Sep 12, 2026	1-10	4 contacts →
	Strong evidence “VOTED BEST ENVIRONMENTAL LAW FIRM IN DALLAS, TX Scott Deatherage is one of Texas’ leading environmental lawyers.” Source: RevenueBase Database · checked Sep 12, 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 57 environmental law firms based in Dallas, United States

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Environmental law firms based in Dallas, United States at a glance

As of Sep 12, 2026

45.5%Verified-email coverage

57.8%Mobile-number coverage

34.6Average contacts per company

1-10Median size (employees)

233.3%Largest-city concentration · Washington

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

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

Email last verified

Median 14.0d

8110–30

8331–60

161–90

090–180

4180+

Company record updated

Median 59.0d

00–30

98931–60

73161–90

17490–180

80180+

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 Dallas, 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 Dallas 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, 899 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 12, 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

Environmental law firms in Washington133
Environmental law firms in New York127
Environmental law firms in Houston112
Environmental law firms in Chicago77
Environmental law firms in Los Angeles71
Environmental law firms in Austin62
Environmental law firms in San Francisco58
Environmental law firms in Dallas58

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 Dallas, United States?

RevenueBase identified 57 environmental law firms headquartered in Dallas, 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?

Jackson Walker LLP, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most environmental law firms?

Washington leads with 133 headquartered companies, followed by New York (127) and Houston (112).

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 899 verified decision-maker contacts tracked across these 57 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 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 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.