Company lists · Data refreshed September 2026

Top 25 International legal consulting firms based in Washington, United States

Name: International legal consulting firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 169 companies tracked

RevenueBase identified 169 company matches for international legal consulting firms associated with Washington, United States as of September 2026 and tracks 14,756 professional contacts across them, including 8,883 with verified work emails. Across the United States, New York is the largest hub for this category (207 companies); Washington follows with 169.

This list covers company matches for international legal consulting 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

169Companies

14,756Contacts tracked

8,883Verified emails

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The 25 largest international legal consulting firms based in Washington, United States

Ranked by team size

Top 25 of 169 company matches for international legal consulting firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Arnold & Porter	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
2	Venable LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,790 contacts →
	Exact match “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Crowell & Moring	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	MGAC	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	201-500	390 contacts →
	Exact match “MGAC is a global boutique consultancy dedicated to managing and representing our clients’ best interests.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Keller And Heckman LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	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
6	Consilio Services LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	168 contacts →
	Exact match “It all starts with our mission: To be a trusted advisor that brings expertise to tackle any legal challenge that multinational corporations and law firms face, whenever and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	The Cohen Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	110 contacts →
	Exact match “Who We Are A talented team of experts with years of experience in both government and industry, with a passion for finding solutions and a deep understanding of the institutions…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Mclarty Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	80 contacts →
	Exact match “McLarty Associates, An Ankura Company, is the global strategy firm led by former Clinton White House Chief of Staff Thomas F.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Cassidy Levy Kent	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	79 contacts →
	Exact match “Cassidy Levy Kent (CLK) is an international law firm that focuses on legal and policy issues raised by cross-border transactions, trade controls, trade remedy litigation…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Lewis Baach Kaufmann Middlemiss Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	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
11	Maggio Kattar Nahajzer Alexander PC	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	55 contacts →
	Exact match “Maggio Kattar has been recognized as one of the top Immigration Law firms in the U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Berliner Corcoran & Rowe LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	44 contacts →
	Exact match “Berliner Corcoran & Rowe LLP is a boutique law firm focused on international law, export controls/sanctions/customs/OFAC/CFIUS, litigation, corporate and intellectual property law.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Fara Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	36 contacts →
	Exact match “Fara Group Inc is a Washington D.C.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Picard Kentz & Rowe LLP	Exact match	Washington, United StatesHQ recorded Sep 28, 2026	11-50	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
15	Garrison	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	22 contacts →
	Exact match “Elite attorneys, law firms, and corporations align with Garrison because of our approach: a blend of intellectual rigor and emotional understanding.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Mowry & Grimson	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	22 contacts →
	Exact match “Mowry & Grimson PLLC advises corporations and governments on critical trade matters ranging from unfair trade litigation to U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	IBS Management & Consultancy Services	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	21 contacts →
	Exact match “IBS is an Accounting, Finance, Management, and Transaction Advisory consulting firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	BSA Legal Group	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1-10	21 contacts →
	Exact match “The BSA Legal Group is a boutique international law and consulting firm dedicated to providing creative and cost effective solutions to its international and domestic based…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Schagrin Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	19 contacts →
	Exact match “Schagrin Associates was founded in 1984 and aims to address the international trade concerns of our clients through all available legislative, judicial, and administrative avenues.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	GST LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	19 contacts →
	Exact match “GST LLP is an international dispute resolution firm with offices in Washington, D.C, Miami and London.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Financial Markets International, Inc. FMI	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	18 contacts →
	Exact match “FMI is an international law and economics consulting firm that specializes in helping emerging market countries to achieve economic growth and development through a reliance on…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Kalbian Hagerty LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	17 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 28, 2026 · View company records in RevenueBase
23	Trade Pacific Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Formed in 2004, our lawyers and international trade consultants counsel clients to comply with and capitalize on the complex and evolving U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Potomac International Partners, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Potomac International Partners is a multidisciplinary consulting firm that matches ideas with needs and creates opportunities from challenges.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Amsterdam & Partners LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Amsterdam & Partners LLP is a leading international law firm with offices in London and Washington, DC.” 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 “international legal consulting 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 169 international legal consulting firms based in Washington, United States

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International legal consulting firms based in Washington, United States at a glance

As of Sep 28, 2026

60.2%Verified-email coverage

87.3Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

51-200

201-500

1,001-5,000

5,001-10,000

10001+

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 169 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 “international legal consulting 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 8,883 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.

International legal consulting firms by metro in the United States

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 “international legal consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international legal consulting firms are there based in Washington, United States?

RevenueBase identified 169 company matches for international legal consulting 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 international legal consulting firms?

New York leads the United States with 207 company records, followed by Washington (169) and Miami (86).

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 8,883 professional contacts with verified work emails tracked across these 169 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.