Company lists · Data refreshed September 2026
Top 25 Energy and infrastructure law firms based in Washington, United States
RevenueBase identified 125 company matches for energy and infrastructure law firms associated with Washington, United States as of September 2026 and tracks 16,874 professional contacts across them, including 10,528 with verified work emails. Across the United States, New York is the largest hub for this category (198 companies); Washington has 125.
This list covers company matches for energy and infrastructure law firms associated with Washington, 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.
The 25 largest energy and infrastructure law firms based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | 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 | |||||
| 3 | 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 28, 2026 · View company records in RevenueBase | |||||
| 4 | 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 | |||||
| 5 | 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 | |||||
| 6 | 434 contacts → | ||||
Exact match “Synergy Consulting is Global Leader in Financial and Corporate Advisory.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 328 contacts → | ||||
Exact match “Beveridge & Diamond’s 170+ lawyers in 7 U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 230 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 28, 2026 · View company records in RevenueBase | |||||
| 9 | 174 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 28, 2026 · View company records in RevenueBase | |||||
| 10 | 74 contacts → | ||||
Exact match “Founded in Astris Finance, a Colliers company, is an independent financial advisory firm specialized in the Infrastructure and Energy (I&E) sectors with an exceptional track…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 73 contacts → | ||||
Exact match “Since 1977, Reno & Cavanaugh has been a national law firm dedicated to strengthening communities through strategic use of public and private resources.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 73 contacts → | ||||
Exact match “On January 1, 2014, Dow Lohnes merged with Cooley LLP.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 70 contacts → | ||||
Exact match “PilieroMazza – a business law firm – serves as a strategic partner to government contractors and commercial businesses from across the United States in numerous industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 64 contacts → | ||||
Exact match “Lewis Baach Kaufmann Middlemiss is a premier international firm with extensive practices in insurance, reinsurance, international financial disputes and global commercial…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 46 contacts → | ||||
Exact match “John & Hengerer LLP represents and advises energy companies, inlcuding natural gas producers, importers, processors, and marketers; gas and liquids pipeline operators; gas storage…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 38 contacts → | ||||
Exact match “Peacock Keller is a full service law firm headquartered in Washington, Pennsylvania.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 36 contacts → | ||||
Exact match “Tiber Hudson LLC is a boutique law firm focused in providing legal services including complex commercial litigation, complex commercial transactions, corporate structure and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 35 contacts → | ||||
Exact match “For over 70 years, Wright & Talisman has been a steady partner with energy companies helping them navigate the complexities of the Federal Energy Regulatory Commission (FERC) and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 29 contacts → | ||||
Exact match “Spiegel & McDiarmid LLP was formed to represent the public side of our nation’s critical infrastructure industries, including energy, telecommunications and transportation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 20 | 28 contacts → | ||||
Exact match “Picard Kentz & Rowe is a firm expert in international law, international litigation and arbitration, international trade and investment, and advocacy on behalf of clients…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 28 contacts → | ||||
Exact match “Since its founding in 1971, DWG & P, has provided a broad range of counseling, regulatory, litigation and legislative services to clients in every region of the country.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 26 contacts → | ||||
Exact match “Beginning in 1955, GKG Law remains dedicated to crafting the best approach to meet our clients’ needs.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 23 | 18 contacts → | ||||
Exact match “Amis, Patel & Brewer, LLP is a boutique law firm focused on providing legal services to the renewable energy and sustainability sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 24 | 18 contacts → | ||||
Exact match “At Earth & Water, we are more than lawyers – we’re strategic advisors with unique experience who advance our clients’ interests across a broad range of environmental and business…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 25 | 18 contacts → | ||||
Exact match “Harkins Cunningham LLP is a law firm engaged in optimizing risk and opportunities in complex matters in highly regulated and politicized environments.” 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 and infrastructure 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 125 energy and infrastructure law firms based in Washington, United States
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Energy and infrastructure law firms based in Washington, United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 125 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 Washington, United States whose business descriptions match “energy and infrastructure 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 10,528 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 and infrastructure law firms by metro in the United States
- Energy and infrastructure law firms in New York198
- Energy and infrastructure law firms in Houston193
- Energy and infrastructure law firms in Chicago93
- Energy and infrastructure law firms in Dallas79
- Energy and infrastructure law firms in Los Angeles68
- Energy and infrastructure law firms in Austin64
- Energy and infrastructure law firms in Miami58
- Energy and infrastructure law firms in Atlanta53
- Energy and infrastructure law firms in Denver53
- Energy and infrastructure law firms in San Francisco48
- Energy and infrastructure law firms in New Orleans40
- Energy and infrastructure law firms in Boston39
- Energy and infrastructure law firms in Philadelphia37
- Energy and infrastructure law firms in Seattle36
- Energy and infrastructure law firms in San Diego33
- Energy and infrastructure law firms in Portland29
- Energy and infrastructure law firms in Salt Lake City27
- Energy and infrastructure law firms in Irvine25
- Energy and infrastructure law firms in Oklahoma City25
- Energy and infrastructure law firms in Sacramento25
- Energy and infrastructure law firms in San Antonio25
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 and infrastructure law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy and infrastructure law firms are there based in Washington, United States?
RevenueBase identified 125 company matches for energy and infrastructure law firms associated with Washington, 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 in the United States has the most energy and infrastructure law firms?
New York leads the United States with 198 company records, followed by Houston (193) and Washington (125).
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 10,528 professional contacts with verified work emails tracked across these 125 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.
Ready to reach these companies? Verified emails and direct dials for all 125 energy and infrastructure law firms based in Washington, United States. Start with a free account, no credit card.
Download this list →Related lists
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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.
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Company intelligence · public preview
Top 25 energy and infrastructure law firms based in Washington, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 125 matching company records for energy and infrastructure law firms based in Washington, United States, with 16,874 tracked contacts and 10,528 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy and infrastructure law firms based in Washington, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Arnold & Porterarnoldporter.comHQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 2,333 contacts → |
“Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Venable LLPvenable.comHQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 1,790 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Crowell & Moringcrowell.comHQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 1,602 contacts → |
“Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Hunton Andrews Kurth LLPhunton.comHQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 1,297 contacts → |
“For 125 years, Hunton has served clients across the globe with a collaborative and purposeful approach.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Wiley Rein LLPwiley.lawHQ: Washington, DC, United StatesReported employees: 501-1,000 | Washington, DC, United States | 501-1,000 | Exact match | 576 contacts → |
“Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Synergy Consulting, INCsynergyconsultingifa.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 434 contacts → |
“Synergy Consulting is Global Leader in Financial and Corporate Advisory.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Beveridge & Diamond PCbdlaw.comHQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 328 contacts → |
“Beveridge & Diamond’s 170+ lawyers in 7 U.S.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Keller And Heckman LLPkhlaw.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 230 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  VAN Ness Feldman LLPvnf.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 174 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Astris Finance, LLCastrisfinance.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 74 contacts → |
“Founded in Astris Finance, a Colliers company, is an independent financial advisory firm specialized in the Infrastructure and Energy (I&E) sectors with an exceptional track…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Reno & Cavanaugh, Pllcrenocavanaugh.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 73 contacts → |
“Since 1977, Reno & Cavanaugh has been a national law firm dedicated to strengthening communities through strategic use of public and private resources.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  DOW Lohnescooley.comHQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 73 contacts → |
“On January 1, 2014, Dow Lohnes merged with Cooley LLP.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Pilieromazza Pllcpilieromazza.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 70 contacts → |
“PilieroMazza – a business law firm – serves as a strategic partner to government contractors and commercial businesses from across the United States in numerous industries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Lewis Baach Kaufmann Middlemiss Pllclbkmlaw.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 64 contacts → |
“Lewis Baach Kaufmann Middlemiss is a premier international firm with extensive practices in insurance, reinsurance, international financial disputes and global commercial…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  John & Hengerer LLPjhenergy.comHQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 46 contacts → |
“John & Hengerer LLP represents and advises energy companies, inlcuding natural gas producers, importers, processors, and marketers; gas and liquids pipeline operators; gas storage…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Peacock Keller, LLPpeacockkeller.comHQ: Washington, PA, United StatesReported employees: 51-200 | Washington, PA, United States | 51-200 | Exact match | 38 contacts → |
“Peacock Keller is a full service law firm headquartered in Washington, Pennsylvania.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Tiber Hudson LLCtiberhudson.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 36 contacts → |
“Tiber Hudson LLC is a boutique law firm focused in providing legal services including complex commercial litigation, complex commercial transactions, corporate structure and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Wright & Talisman, P.Cwrightlaw.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 35 contacts → |
“For over 70 years, Wright & Talisman has been a steady partner with energy companies helping them navigate the complexities of the Federal Energy Regulatory Commission (FERC) and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Spiegel & Mcdiarmid LLPspiegelmcd.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 29 contacts → |
“Spiegel & McDiarmid LLP was formed to represent the public side of our nation’s critical infrastructure industries, including energy, telecommunications and transportation.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Picard Kentz & Rowe LLPpkrllp.comHQ: Washington, United StatesReported employees: 11-50 | Washington, United States | 11-50 | Exact match | 28 contacts → |
“Picard Kentz & Rowe is a firm expert in international law, international litigation and arbitration, international trade and investment, and advocacy on behalf of clients…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 28 contacts → |
“Since its founding in 1971, DWG & P, has provided a broad range of counseling, regulatory, litigation and legislative services to clients in every region of the country.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  GKG Law, P.Cgkglaw.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 26 contacts → |
“Beginning in 1955, GKG Law remains dedicated to crafting the best approach to meet our clients’ needs.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Amis Patel Brewerapbllp.comHQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 18 contacts → |
“Amis, Patel & Brewer, LLP is a boutique law firm focused on providing legal services to the renewable energy and sustainability sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  E&w LAWearthandwatergroup.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 18 contacts → |
“At Earth & Water, we are more than lawyers – we’re strategic advisors with unique experience who advance our clients’ interests across a broad range of environmental and business…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Harkins Cunningham LLPharkinscunningham.comHQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 18 contacts → |
“Harkins Cunningham LLP is a law firm engaged in optimizing risk and opportunities in complex matters in highly regulated and politicized environments.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 125 company matches
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Energy and infrastructure law firms: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
125 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 125 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Energy and infrastructure law firms by metro in the United States
- Energy and infrastructure law firms in New York198
- Energy and infrastructure law firms in Houston193
- Energy and infrastructure law firms in Chicago93
- Energy and infrastructure law firms in Dallas79
- Energy and infrastructure law firms in Los Angeles68
- Energy and infrastructure law firms in Austin64
- Energy and infrastructure law firms in Miami58
- Energy and infrastructure law firms in Atlanta53
- Energy and infrastructure law firms in Denver53
- Energy and infrastructure law firms in San Francisco48
- Energy and infrastructure law firms in New Orleans40
- Energy and infrastructure law firms in Boston39
- Energy and infrastructure law firms in Philadelphia37
- Energy and infrastructure law firms in Seattle36
- Energy and infrastructure law firms in San Diego33
- Energy and infrastructure law firms in Portland29
- Energy and infrastructure law firms in Salt Lake City27
- Energy and infrastructure law firms in Irvine25
- Energy and infrastructure law firms in Oklahoma City25
- Energy and infrastructure law firms in Sacramento25
- Energy and infrastructure law firms in San Antonio25
Questions about this company list
What does Exact match mean for energy and infrastructure law firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy and infrastructure law firms did RevenueBase find based in Washington, United States?
The saved snapshot records 125 matching company records, 16,874 tracked contacts and 10,528 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy and infrastructure law firms by geography
- Energy and infrastructure law firms based in Buenos Aires, Argentina
- Energy and infrastructure law firms based in Adelaide, Australia
- Energy and infrastructure law firms based in Brisbane, Australia
- Energy and infrastructure law firms based in Melbourne, Australia
- Energy and infrastructure law firms based in Perth, Australia
- Energy and infrastructure law firms based in Sydney, Australia
- Energy and infrastructure law firms based in Vienna, Austria
- Energy and infrastructure law firms based in Brussels, Belgium
- Energy and infrastructure law firms based in Barueri, Brazil
- Energy and infrastructure law firms based in Belo Horizonte, Brazil
- Energy and infrastructure law firms based in Brasilia, Brazil
- Energy and infrastructure law firms based in Campinas, Brazil
Cite this list
RevenueBase Data Team. Top 25 energy and infrastructure law firms based in Washington, United States. Snapshot: September 28, 2026. https://revenuebase.ai/companies/energy-and-infrastructure-law-firms/united-states/washington.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy and infrastructure law firms based in Buenos Aires, Argentina
- Energy and infrastructure law firms based in Adelaide, Australia
- Energy and infrastructure law firms based in Brisbane, Australia
- Energy and infrastructure law firms based in Melbourne, Australia
- Energy and infrastructure law firms based in Perth, Australia
- Energy and infrastructure law firms based in Sydney, Australia
Company intelligence · public preview
Top 25 energy and infrastructure law firms based in Washington, United States
RevenueBase records 125 matching company records for energy and infrastructure law firms based in Washington, United States, with 16,874 tracked contacts and 10,528 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy and infrastructure law firms based in Washington, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Arnold & Porterarnoldporter.com HQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 2,333 contacts → |
“Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Venable LLPvenable.com HQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 1,790 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Crowell & Moringcrowell.com HQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 1,602 contacts → |
“Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Hunton Andrews Kurth LLPhunton.com HQ: Washington, DC, United StatesReported employees: 1,001-5,000 | Washington, DC, United States | 1,001-5,000 | Exact match | 1,297 contacts → |
“For 125 years, Hunton has served clients across the globe with a collaborative and purposeful approach.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Wiley Rein LLPwiley.law HQ: Washington, DC, United StatesReported employees: 501-1,000 | Washington, DC, United States | 501-1,000 | Exact match | 576 contacts → |
“Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Synergy Consulting, INCsynergyconsultingifa.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 434 contacts → |
“Synergy Consulting is Global Leader in Financial and Corporate Advisory.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Beveridge & Diamond PCbdlaw.com HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 328 contacts → |
“Beveridge & Diamond’s 170+ lawyers in 7 U.S.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Keller And Heckman LLPkhlaw.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 230 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | VAN Ness Feldman LLPvnf.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 174 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Astris Finance, LLCastrisfinance.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 74 contacts → |
“Founded in Astris Finance, a Colliers company, is an independent financial advisory firm specialized in the Infrastructure and Energy (I&E) sectors with an exceptional track…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Reno & Cavanaugh, Pllcrenocavanaugh.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 73 contacts → |
“Since 1977, Reno & Cavanaugh has been a national law firm dedicated to strengthening communities through strategic use of public and private resources.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | DOW Lohnescooley.com HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 73 contacts → |
“On January 1, 2014, Dow Lohnes merged with Cooley LLP.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Pilieromazza Pllcpilieromazza.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 70 contacts → |
“PilieroMazza – a business law firm – serves as a strategic partner to government contractors and commercial businesses from across the United States in numerous industries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Lewis Baach Kaufmann Middlemiss Pllclbkmlaw.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 64 contacts → |
“Lewis Baach Kaufmann Middlemiss is a premier international firm with extensive practices in insurance, reinsurance, international financial disputes and global commercial…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | John & Hengerer LLPjhenergy.com HQ: Washington, DC, United StatesReported employees: Not recorded | Washington, DC, United States | Not recorded | Exact match | 46 contacts → |
“John & Hengerer LLP represents and advises energy companies, inlcuding natural gas producers, importers, processors, and marketers; gas and liquids pipeline operators; gas storage…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Peacock Keller, LLPpeacockkeller.com HQ: Washington, PA, United StatesReported employees: 51-200 | Washington, PA, United States | 51-200 | Exact match | 38 contacts → |
“Peacock Keller is a full service law firm headquartered in Washington, Pennsylvania.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Tiber Hudson LLCtiberhudson.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 36 contacts → |
“Tiber Hudson LLC is a boutique law firm focused in providing legal services including complex commercial litigation, complex commercial transactions, corporate structure and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Wright & Talisman, P.Cwrightlaw.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 35 contacts → |
“For over 70 years, Wright & Talisman has been a steady partner with energy companies helping them navigate the complexities of the Federal Energy Regulatory Commission (FERC) and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Spiegel & Mcdiarmid LLPspiegelmcd.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 29 contacts → |
“Spiegel & McDiarmid LLP was formed to represent the public side of our nation’s critical infrastructure industries, including energy, telecommunications and transportation.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Picard Kentz & Rowe LLPpkrllp.com HQ: Washington, United StatesReported employees: 11-50 | Washington, United States | 11-50 | Exact match | 28 contacts → |
“Picard Kentz & Rowe is a firm expert in international law, international litigation and arbitration, international trade and investment, and advocacy on behalf of clients…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 28 contacts → |
“Since its founding in 1971, DWG & P, has provided a broad range of counseling, regulatory, litigation and legislative services to clients in every region of the country.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | GKG Law, P.Cgkglaw.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 26 contacts → |
“Beginning in 1955, GKG Law remains dedicated to crafting the best approach to meet our clients’ needs.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Amis Patel Brewerapbllp.com HQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 18 contacts → |
“Amis, Patel & Brewer, LLP is a boutique law firm focused on providing legal services to the renewable energy and sustainability sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | E&w LAWearthandwatergroup.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 18 contacts → |
“At Earth & Water, we are more than lawyers – we’re strategic advisors with unique experience who advance our clients’ interests across a broad range of environmental and business…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Harkins Cunningham LLPharkinscunningham.com HQ: Washington, DC, United StatesReported employees: 1-10 | Washington, DC, United States | 1-10 | Exact match | 18 contacts → |
“Harkins Cunningham LLP is a law firm engaged in optimizing risk and opportunities in complex matters in highly regulated and politicized environments.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 125 company matches
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Energy and infrastructure law firms: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
125 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 125 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Energy and infrastructure law firms by metro in the United States
- Energy and infrastructure law firms in New York198
- Energy and infrastructure law firms in Houston193
- Energy and infrastructure law firms in Chicago93
- Energy and infrastructure law firms in Dallas79
- Energy and infrastructure law firms in Los Angeles68
- Energy and infrastructure law firms in Austin64
- Energy and infrastructure law firms in Miami58
- Energy and infrastructure law firms in Atlanta53
- Energy and infrastructure law firms in Denver53
- Energy and infrastructure law firms in San Francisco48
- Energy and infrastructure law firms in New Orleans40
- Energy and infrastructure law firms in Boston39
- Energy and infrastructure law firms in Philadelphia37
- Energy and infrastructure law firms in Seattle36
- Energy and infrastructure law firms in San Diego33
- Energy and infrastructure law firms in Portland29
- Energy and infrastructure law firms in Salt Lake City27
- Energy and infrastructure law firms in Irvine25
- Energy and infrastructure law firms in Oklahoma City25
- Energy and infrastructure law firms in Sacramento25
- Energy and infrastructure law firms in San Antonio25
Questions about this company list
What does Exact match mean for energy and infrastructure law firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy and infrastructure law firms did RevenueBase find based in Washington, United States?
The saved snapshot records 125 matching company records, 16,874 tracked contacts and 10,528 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy and infrastructure law firms by geography
- Energy and infrastructure law firms based in Buenos Aires, Argentina
- Energy and infrastructure law firms based in Adelaide, Australia
- Energy and infrastructure law firms based in Brisbane, Australia
- Energy and infrastructure law firms based in Melbourne, Australia
- Energy and infrastructure law firms based in Perth, Australia
- Energy and infrastructure law firms based in Sydney, Australia
- Energy and infrastructure law firms based in Vienna, Austria
- Energy and infrastructure law firms based in Brussels, Belgium
- Energy and infrastructure law firms based in Barueri, Brazil
- Energy and infrastructure law firms based in Belo Horizonte, Brazil
- Energy and infrastructure law firms based in Brasilia, Brazil
- Energy and infrastructure law firms based in Campinas, Brazil
Cite this list
RevenueBase Data Team. Top 25 energy and infrastructure law firms based in Washington, United States. Snapshot: September 28, 2026. https://revenuebase.ai/companies/energy-and-infrastructure-law-firms/united-states/washington.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Energy and infrastructure law firms based in Buenos Aires, Argentina
- Energy and infrastructure law firms based in Adelaide, Australia
- Energy and infrastructure law firms based in Brisbane, Australia
- Energy and infrastructure law firms based in Melbourne, Australia
- Energy and infrastructure law firms based in Perth, Australia
- Energy and infrastructure law firms based in Sydney, Australia