Company lists · Data refreshed September 2026

Top 25 Project finance law firms based in Washington, United States

RevenueBase identified 84 company matches for project finance law firms associated with Washington, United States as of September 2026 and tracks 13,491 professional contacts across them, including 8,240 with verified work emails. Across the United States, New York is the largest hub for this category (148 companies); Washington has 84.

This list covers company matches for project finance 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 5, 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 5, 2026 How this list was built
84Companies
13,491Contacts tracked
8,240Verified emails
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The 25 largest project finance law firms based in Washington, United States

Ranked by team size
Top 25 of 84 company matches for project finance law firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 5, 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 matchWashington, DC, United StatesHQ recorded Sep 5, 20261,001-5,0002,333 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 5, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
3Exact matchWashington, DC, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
4Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202651-200434 contacts →

Exact match

“Synergy Consulting is Global Leader in Financial and Corporate Advisory.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
5Exact matchWashington, DC, United StatesHQ recorded Sep 5, 2026201-500328 contacts →

Exact match

“Beveridge & Diamond’s 170+ lawyers in 7 U.S.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Sep 5, 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 5, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202651-20074 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 5, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202651-20073 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 5, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Sep 5, 2026n/a46 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 5, 2026 · View company records in RevenueBase
11Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5036 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 5, 2026 · View company records in RevenueBase
12Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5029 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 5, 2026 · View company records in RevenueBase
13Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5028 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 5, 2026 · View company records in RevenueBase
14Exact matchWashington, DC, United StatesHQ recorded Sep 5, 20261-1018 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 5, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5018 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 5, 2026 · View company records in RevenueBase
16Exact matchWashington, DC, United StatesHQ recorded Sep 5, 20261-1018 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 5, 2026 · View company records in RevenueBase
17Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5017 contacts →

Exact match

“Rock Creek Energy Group is a group of diverse and like-minded professionals with a shared passion – Energy.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5017 contacts →

Exact match

“The attorneys of Asmar, Schor & McKenna are recognized leaders in all areas of construction law, commercial real estate transactions and commercial leasing.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
19Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5017 contacts →

Exact match

“Kalbian Hagerty LLP is an international general practice law firm with offices in Washington, D.C, Abu Dhabi, U.A.E, and New York City and a strategic alliance with a prominent…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Sep 5, 20261-1016 contacts →

Exact match

“A full-service business law firm, Veritas Law has expertise in corporate and transactional law, litigation, and licensing.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
21Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5016 contacts →

Exact match

“Slover & Loftus, LLP is a national law firm founded in 1967 and specializing in commercial transactions, litigation and arbitration in the fields of energy, transportation and…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
22Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5014 contacts →

Exact match

“Sustainable Capital Advisors (SCA) is a strategy consulting and financial advisory firm focused on delivering innovative capital solutions for the sustainable infrastructure…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5013 contacts →

Exact match

“Since it was founded in 1993, LB3 has been the leading firm guiding large customers through a maze of legal, technical, financial, and regulatory issues to close world-class…”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5012 contacts →

Exact match

“Greengate was founded in 2005 by senior financial professionals with extensive backgrounds in project and structured finance.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase
25Exact matchWashington, DC, United StatesHQ recorded Sep 5, 202611-5012 contacts →

Exact match

“Taylor-DeJongh (TDJ) is an international financial advisory firm based in Washington, D.C.”

Recorded in the RevenueBase company graph · Sep 5, 2026 · View company records in RevenueBase

Showing 25 of 84 project finance law firms based in Washington, United States

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Project finance law firms based in Washington, United States at a glance

As of Sep 5, 2026
61.1%Verified-email coverage
160.6Average contacts per company
1-10Median size (employees)
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
47
11-50
26
51-200
5
201-500
1
501-1,000
1
1,001-5,000
3
5,001-10,000
1

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 84 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 “project 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 8,240 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 5, 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.

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

How many project finance law firms are there based in Washington, United States?

RevenueBase identified 84 company matches for project finance 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 project finance law firms?

New York leads the United States with 148 company records, followed by Houston (98) and Washington (84).

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 8,240 professional contacts with verified work emails tracked across these 84 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 5, 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.