Company lists · Data refreshed September 2026

Top 25 Energy finance law firms based in the United States

Name: Energy finance 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 1,941 companies tracked

RevenueBase identified 1,941 company matches for energy finance law firms associated with the United States as of September 2026 and tracks 109,831 professional contacts across them, including 63,087 with verified work emails. Houston is the largest hub.

This list covers company matches for energy finance 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

1,941Companies

109,831Contacts tracked

63,087Verified emails

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The 25 largest energy finance law firms based in the United States

Ranked by team size

Top 25 of 1,941 company matches for energy finance 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	K&l Gates	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	4,861 contacts →
	Exact match “At K&L Gates, we foster an inclusive and collaborative environment across our fully integrated global platform that enables us to diligently combine the knowledge and expertise of…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Skadden, Arps, Slate, Meagher & Flom LLP And Affiliates	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	4,540 contacts →
	Exact match “Skadden, Arps, Slate, Meagher & Flom LLP and Affiliates delivers the highest quality advice and novel solutions to legal challenges, enabling clients to achieve their business…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Mayer Brown	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	4,177 contacts →
	Exact match “Mayer Brown is a leading international law firm, positioned to represent the world’s major corporations, funds and financial institutions in their most important and complex…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Gibson Dunn	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	3,735 contacts →
	Exact match “Gibson Dunn is a leading global law firm, advising clients on significant transactions and disputes.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Paul Hastings	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	3,045 contacts →
	Exact match “With widely recognized elite teams in finance, mergers & acquisitions, private equity, restructuring and special situations, litigation, employment and real estate, Paul Hastings…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Foley & Lardner LLP	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,884 contacts →
	Exact match “Foley & Lardner LLP stands at the nexus of the Energy & Infrastructure, Health Care & Life Sciences, Innovative Technology, and Manufacturing Sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Morrison Foerster	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,667 contacts →
	Exact match “Morrison Foerster transforms complexity into advantage.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Paul, Weiss, Rifkind, Wharton & Garrison LLP	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,577 contacts →
	Exact match “Paul, Weiss, Rifkind, Wharton & Garrison LLP is a global law firm of more than 1,500 lawyers focused on helping clients navigate their most complex legal and business challenges.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Proskauer Rose LLP	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,096 contacts →
	Exact match “We are 800+ lawyers serving clients from offices located in the leading financial and business centers in the Americas, Europe and Asia.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Dechert LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,041 contacts →
	Exact match “Dechert is the law firm that helps business leaders lead.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Troutman Pepper Locke LLP	Exact match	United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,895 contacts →
	Exact match “Troutman Pepper Locke LLP helps clients solve complex legal challenges and achieve their business goals in an ever-changing global economy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Faegre Drinker	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,848 contacts →
	Exact match “Faegre Drinker is a firm designed for clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	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
14	Vinson & Elkins	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,693 contacts →
	Exact match “Vinson & Elkins is a law firm of global distinction, working with leading companies on wide-ranging matters in key industries across the economy.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	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
16	Milbank LLP	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	1,640 contacts →
	Exact match “Milbank is a premier international law firm handling high-profile, complex cases and business transactions through 11 offices worldwide.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Fried Frank	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	501-1,000	1,584 contacts →
	Exact match “Fried, Frank, Harris, Shriver & Jacobson LLP advises the world's leading corporations, investment funds and financial institutions on their most critical legal needs and business…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Haynes And Boone, LLP	Exact match	Dallas, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,558 contacts →
	Exact match “Haynes Boone is among the fastest-growing firms in the Am Law 100, providing full-service counsel across sectors, including corporate, energy, financial services, real estate…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Katten Muchin Rosenman LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,495 contacts →
	Exact match “Katten is a full-service law firm with nearly 650 attorneys in locations across the United States and in London and Shanghai.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Baker Botts	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,477 contacts →
	Exact match “Baker Botts is an international law firm whose lawyers practice throughout a network of offices around the globe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	MINTZ	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,326 contacts →
	Exact match “Mintz is a full-service law firm serving clients in the life sciences, energy, private equity, and technology industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Hunton Andrews Kurth LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,297 contacts →
	Exact match “For 125 years, Hunton has served clients across the globe with a collaborative and purposeful approach.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Snell & Wilmer	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 28, 2026	501-1,000	1,219 contacts →
	Exact match “Founded in 1938, Snell & Wilmer is a full-service business law firm with more than 500 lawyers practicing in 17 locations throughout the United States and in Mexico.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	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
25	Hinshaw & Culbertson LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	501-1,000	1,188 contacts →
	Exact match “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” 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 “energy finance 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 1,941 energy finance law firms based in the United States

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Energy finance law firms based in the United States at a glance

As of Sep 28, 2026

57.4%Verified-email coverage

56.6Average contacts per company

1-10Median size (employees)

7.1%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,029

11-50

605

51-200

190

201-500

501-1,000

1,001-5,000

10001+

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 1,941 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 “energy finance 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 63,087 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.

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

How many energy finance law firms are there based in the United States?

RevenueBase identified 1,941 company matches for energy finance 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?

K&l Gates tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most energy finance law firms?

Houston leads with 137 company records, followed by New York (124) and Washington (69).

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 63,087 professional contacts with verified work emails tracked across these 1,941 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.