Company lists · Data refreshed September 2026

Top 25 Energy sector law firms worldwide

Name: Energy sector law firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 11,917 companies tracked

RevenueBase identified 11,917 company matches for energy sector law firms worldwide as of September 2026 and tracks 258,479 professional contacts across them, including 122,872 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for energy sector law firms worldwide, 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 21, 2026. Country and city lists for energy sector law firms follow the table.

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 21, 2026 How this list was built

11,917Companies

258,479Contacts tracked

122,872Verified emails

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The 25 largest energy sector law firms worldwide

Ranked by team size

Top 25 of 11,917 company matches for energy sector law firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	A&o Shearman	Exact match	Hamburg, United KingdomHQ recorded Sep 21, 2026	5,001-10,000	6,574 contacts →
	Exact match “A&O Shearman transforms the way law is practiced, to deliver unparalleled results for our clients' most complex matters – everywhere in the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Foley & Lardner LLP	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3	Perkins Coie	Exact match	Seattle, WA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,746 contacts →
	Exact match “Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Simmons & Simmons	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	2,498 contacts →
	Exact match “An international law firm that acts like your business partner.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Arnold & Porter	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6	Dechert LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
7	Slaughter And MAY	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	1,951 contacts →
	Exact match “Slaughter and May is regarded as one of the most prestigious law firms in the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Fieldfisher	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	1,940 contacts →
	Exact match “Fieldfisher is an enterprising European law firm built around people.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Trilegal	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	1,001-5,000	1,926 contacts →
	Exact match “Trilegal is a leading full-service law firm in India with over 25 years of experience, known for its depth of expertise and client-focused approach.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Troutman Pepper Locke LLP	Exact match	United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
11	Faegre Drinker	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
12	TLT LLP	Exact match	Bristol, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	1,797 contacts →
	Exact match “We’re your business advisers as well as your lawyers, working in step with you to protect your interests today and progress your ambitions for tomorrow.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Venable LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
14	Clayton UTZ	Exact match	Sydney, AustraliaHQ recorded Sep 21, 2026	1,001-5,000	1,787 contacts →
	Exact match “We are one of Australia's oldest and largest law firms, with offices in six cities, nearly 200 partners, and a full range of legal services for large private sector and government…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Cyril Amarchand Mangaldas	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	1,001-5,000	1,756 contacts →
	Exact match “Cyril Amarchand Mangaldas (CAM) is India’s leading law firm with a global reputation of being trusted advisers to its clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Vinson & Elkins	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17	Ballard Spahr LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
18	Crowell & Moring	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,602 contacts →
	Exact match “Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Tozzinifreire Advogados	Exact match	São Paulo, BrazilHQ recorded Sep 21, 2026	1,001-5,000	1,580 contacts →
	Exact match “TozziniFreire is one of the leading legal services organizations in Latin America, operating in all areas of Business Law and with a significant track record in serving national…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Haynes And Boone, LLP	Exact match	Dallas, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
21	Blake, Cassels & Graydon LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 21, 2026	1,001-5,000	1,555 contacts →
	Exact match “At Blake, Cassels & Graydon LLP (Blakes), we serve a diverse national and international client base.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Mattos Filho	Exact match	São Paulo, BrazilHQ recorded Sep 21, 2026	1,001-5,000	1,553 contacts →
	Exact match “Somos um dos escritórios de advocacia líderes do mercado brasileiro, estruturado para atender nossos clientes em mais de 45 áreas do Direito, de maneira coordenada e integrada.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Corrs Chambers Westgarth	Exact match	Sydney, AustraliaHQ recorded Sep 21, 2026	1,001-5,000	1,506 contacts →
	Exact match “Corrs Chambers Westgarth is Australia’s leading independent law firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Baker Botts	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
25	Stephenson Harwood LLP	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	1,474 contacts →
	Exact match “Stephenson Harwood is an international law firm, and we're committed to creating 'positive partnerships' with our clients.” Recorded in the RevenueBase company graph · Sep 21, 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 sector 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 11,917 energy sector law firms worldwide

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Energy sector law firms worldwide at a glance

As of Sep 21, 2026

47.5%Verified-email coverage

21.7Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

6,867

11-50

3,899

51-200

805

201-500

179

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for energy sector law firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy sector 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. 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 122,872 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 21, 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 sector law firms by location

71 lists · largest first

Every Energy sector law firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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

How many energy sector law firms are there worldwide?

RevenueBase identified 11,917 company matches for energy sector law firms worldwide 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?

A&o Shearman tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most energy sector law firms?

The United States leads with 1,842 companies, followed by Brazil (1,616) and France (565). Every energy sector law firms list by country and city is linked on this page.

Which city has the most energy sector law firms?

Sao Paulo leads with 368 company records, followed by Paris (282) and Rio De Janeiro (141).

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 122,872 professional contacts with verified work emails tracked across these 11,917 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 21, 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.