Company lists · Data refreshed September 2026

Top 25 Utility regulation law firms worldwide

RevenueBase identified 1,712 company matches for utility regulation law firms worldwide as of September 2026 and tracks 31,390 professional contacts across them, including 16,768 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers company matches for utility regulation 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 29, 2026. Country and city lists for utility regulation 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 29, 2026 How this list was built
1,712Companies
31,390Contacts tracked
16,768Verified emails
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The 25 largest utility regulation law firms worldwide

Ranked by team size
Top 25 of 1,712 company matches for utility regulation law firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchColumbia, SC, United StatesHQ recorded Sep 29, 20261,001-5,0002,012 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 29, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Sep 29, 20261,001-5,0001,790 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 29, 2026 · View company records in RevenueBase
3Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 29, 20261,001-5,0001,682 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 29, 2026 · View company records in RevenueBase
4Exact matchPittsburgh, PA, United StatesHQ recorded Sep 29, 2026501-1,0001,197 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 29, 2026 · View company records in RevenueBase
5Exact matchCalgary, AB, CanadaHQ recorded Sep 29, 2026501-1,0001,144 contacts →

Exact match

“For over a century, Bennett Jones has been an internationally recognized Canadian law firm founded and focused on principles of professional excellence, integrity, respect and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchDenver, CO, United StatesHQ recorded Sep 29, 2026501-1,000902 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 29, 2026 · View company records in RevenueBase
7Exact matchPortland, OR, United StatesHQ recorded Sep 29, 2026501-1,000864 contacts →

Exact match

“Stoel Rives is a leading U.S.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchBridgeport, WV, United StatesHQ recorded Sep 29, 2026501-1,000757 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 29, 2026 · View company records in RevenueBase
9Exact matchCharlotte, NC, United StatesHQ recorded Sep 29, 2026501-1,000584 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 29, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Sep 29, 2026501-1,000576 contacts →

Exact match

“Founded in 1983, Wiley is a dominant presence in the nation’s capital.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchRiverside, CA, United StatesHQ recorded Sep 29, 2026201-500522 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 29, 2026 · View company records in RevenueBase
12Exact matchBirmingham, AL, United StatesHQ recorded Sep 29, 2026201-500472 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 29, 2026 · View company records in RevenueBase
13Exact matchBaton Rouge, LA, United StatesHQ recorded Sep 29, 2026201-500452 contacts →

Exact match

“Just as oil and gas must be refined to unlock their true potential, we at Kean Miller continuously optimize our legal approach to help transform business complexities into new…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 29, 2026201-500336 contacts →

Exact match

“For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchLos Angeles, CA, United StatesHQ recorded Sep 29, 2026201-500332 contacts →

Exact match

“Nossaman LLP is a national law firm with attorneys and policy advisors located in 12 offices throughout the United States.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchDallas, TX, United StatesHQ recorded Sep 29, 2026501-1,000327 contacts →

Exact match

“Thompson & Knight is now known as Holland & Knight.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchPortland, ME, United StatesHQ recorded Sep 29, 2026201-500320 contacts →

Exact match

“Pierce Atwood LLP, a highly-regarded, full-service law firm based in New England, has 150 attorneys who serve regional, national, and international clients from offices in…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchHarrisburg, PA, United StatesHQ recorded Sep 29, 2026201-500307 contacts →

Exact match

“Since 1935, McNees Wallace & Nurick has been a trusted, client-focused law firm delivering practical, results-driven legal solutions to businesses, individuals, and organizations.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchDenver, CO, United StatesHQ recorded Sep 29, 2026201-500283 contacts →

Exact match

“Davis Graham & Stubbs LLP enjoys a strong national reputation for its corporate finance, natural resources, and energy law practices, with a particular focus on securities and M&A…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchNew Orleans, LA, United StatesHQ recorded Sep 29, 2026201-500259 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchMéxico, MexicoHQ recorded Sep 29, 2026201-500239 contacts →

Exact match

“GALICIA was founded in 1994 and has since become Mexico´s leading transactional firm with strong regulatory offering supported by its strategic litigation capabilities.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchWashington, DC, United StatesHQ recorded Sep 29, 202651-200230 contacts →

Exact match

“Keller and Heckman, founded in 1962, has a broad practice in the areas of regulatory law, public policy, and litigation, serving both domestic and international clients.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchSacramento, CA, United StatesHQ recorded Sep 29, 202651-200217 contacts →

Exact match

“Clients turn to Downey Brand for efficient and practical legal advice.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Sep 29, 202651-200174 contacts →

Exact match

“Van Ness Feldman is a nationally recognized mid-sized law firm specializing in the areas of energy, environment, and natural resources law and policy, with offices in Washington…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchAustin, TX, United StatesHQ recorded Sep 29, 202651-200160 contacts →

Exact match

“For almost 100 years, McGinnis Lochridge has served to protect the interests of our clients in continuously changing landscapes including cutting-edge technology, oil and gas…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 1,712 utility regulation law firms worldwide

See the full list, filter by size, metro and specialty, and access 16,768 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Utility regulation law firms worldwide at a glance

As of Sep 29, 2026
53.4%Verified-email coverage
18.3Average contacts per company
1-10Median size (employees)
3.3%Largest-city concentration · Washington
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,119
11-50
476
51-200
84
201-500
13
501-1,000
9
1,001-5,000
4

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 utility regulation law firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “utility regulation 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 16,768 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 29, 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.

Utility regulation law firms by location

17 lists · largest first

Every Utility regulation 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 “utility regulation law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many utility regulation law firms are there worldwide?

RevenueBase identified 1,712 company matches for utility regulation 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?

Nelson Mullins Riley & Scarborough tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most utility regulation law firms?

The United States leads with 579 companies, followed by Brazil (152) and Germany (66). Every utility regulation law firms list by country and city is linked on this page.

Which city has the most utility regulation law firms?

Washington leads with 57 company records, followed by Sao Paulo (39) and Paris (37).

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 16,768 professional contacts with verified work emails tracked across these 1,712 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 29, 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.