Company lists · Data refreshed October 2026

Top 23 International tax attorneys based in Washington, United States

RevenueBase identified 49 company matches for international tax attorneys associated with Washington, United States as of October 2026 and tracks 2,994 professional contacts across them, including 1,462 with verified work emails. Across the United States, New York is the largest hub for this category (157 companies); Washington has 49.

This list covers company matches for international tax attorneys 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 October 22, 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 Oct 22, 2026 How this list was built
49Companies
2,994Contacts tracked
1,462Verified emails
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The 23 largest international tax attorneys based in Washington, United States

Ranked by team size
Top 23 of 49 company matches for international tax attorneys based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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 Oct 22, 20261,001-5,0002,173 contacts →

Exact match

“Recognized as one of the top firms for client service and quality of legal services, BakerHostetler is a leading law firm that helps clients around the world address their most…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261,001-5,000167 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 · Oct 22, 2026 · View company records in RevenueBase
3Exact matchWashington, DC, United StatesHQ recorded Oct 22, 202651-20079 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 · Oct 22, 2026 · View company records in RevenueBase
4Exact matchWashington, DC, United StatesHQ recorded Oct 22, 202611-5053 contacts →

Exact match

“Ivins, Phillips & Barker is exclusively engaged in the practice of federal tax, benefits and compensation, and estate and gift tax law.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5Exact matchWashington, United StatesHQ recorded Oct 22, 202611-5028 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 · Oct 22, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-1024 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 · Oct 22, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Oct 22, 202611-5018 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 · Oct 22, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Oct 22, 202611-5018 contacts →

Exact match

“RoseMcKenna PLLC is a boutique accounting firm dedicated to providing the absolute best in personalized and professional tax services.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Oct 22, 202611-5010 contacts →

Exact match

“Rosefelt Tax Law is a Washington, DC Metro-based firm with a national practice representing clients with serious tax problems and financial concerns.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-1010 contacts →

Exact match

“The Royal Law Firm PLLC, founded in 2009 by Priya Prakash Royal, Esq, LL.M, MBA, AEP®, TEP, is a private client law firm serving individuals, families, and closely held…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-109 contacts →

Exact match

“A Washington, DC based law firm with offices in New York and Miami focusing on international trade compliance & enforcement, white collar defense & litigation, international…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12Exact matchWashington, DC, United StatesHQ recorded Oct 22, 202611-507 contacts →

Exact match

“In 2001 Capitol Tax Partners’ founders relied on decades of government experience to create Washington’s premier tax firm that could provide clients with both political and tax…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-105 contacts →

Exact match

“Pontius Tax Law, PLLC represents individual and business clients with sensitive and serious tax matters before the Internal Revenue Service and state taxing authorities.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-105 contacts →

Exact match

“The Chaklader Firm is a professional legal services corporation with attorneys that cater to the complex needs of companies and individuals in Litigation, Contracts &…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-103 contacts →

Exact match

“When it comes to planning, every client is unique, and we recognize this by tailoring the planning process to meet your specific objectives.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16Exact matchWashington, DC, United StatesHQ recorded Oct 22, 2026201-5003 contacts →

Exact match

“Based in Washington, DC, Marroquin & Merino International Legal Advisors LLC is an international law firm with global coverage, focused in the Caribbean and the Andean and…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-103 contacts →

Exact match

“At the Temple Law Offices, our team of experienced attorneys understand the complexity of the law and work tirelessly to represent our diverse, international client base.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-103 contacts →

Exact match

“We are a family owned and operated law practice with offices in Washington, DC and Pittsburgh, PA.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19Exact matchWashington, DC, United StatesHQ recorded Oct 22, 202611-502 contacts →

Exact match

“Founded in 1972, Cameron LLP is a law firm for demanding clients who expect results from their attorneys.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-102 contacts →

Exact match

“Boyle & Jasari is a boutique national and international law firm with offices in Washington, DC, Baltimore, MD, Philadelphia, PA, and Anchorage, AK.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-102 contacts →

Exact match

“Thorn Law Group, led by founding tax attorney and managing partner Kevin E.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-101 contacts →

Exact match

“Boutique law firm specializing in developing strategic tax planning initiatives for businesses and investors, including international corporate treasury centers, intellectual…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Oct 22, 20261-101 contacts →

Exact match

“The Law Offices of Ruthven R Phillip, PLLC is a client centered, problem resolution tax controversy practice, representing individuals, business, churches and exempt organizations…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

Showing 23 of 49 international tax attorneys based in Washington, United States

See the full list, filter by size, metro and specialty, and access 1,462 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax attorneys based in Washington, United States at a glance

As of Oct 22, 2026
48.8%Verified-email coverage
61.1Average contacts per company
1-10Median size (employees)
Oct 22, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
12
51-200
7
201-500
1
1,001-5,000
2

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 49 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 tax attorneys” 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 1,462 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 October 22, 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 “international tax attorneys”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international tax attorneys are there based in Washington, United States?

RevenueBase identified 49 company matches for international tax attorneys associated with Washington, United States as of October 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?

Bakerhostetler 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 tax attorneys?

New York leads the United States with 157 company records, followed by Miami (99) and Houston (59). Washington has 49.

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 1,462 professional contacts with verified work emails tracked across these 49 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 October 22, 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.