Company lists · Data refreshed September 2026

Top 25 Accounting law firms based in Washington, United States

RevenueBase identified 75 accounting law firms headquartered in Washington, United States as of September 2026 and tracks 2,827 professional contacts across them, including 1,765 with verified work emails. New York is the largest hub.

This list covers accounting law firms headquartered in Washington, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
75Companies
2,827Contacts tracked
1,765Verified emails
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The 25 largest accounting law firms based in Washington, United States

Ranked by team size
Top 25 of 75 accounting law firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 20261,001-5,0001,790 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 2026501-1,000576 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
3Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 20261,001-5,00087 contacts →

Partial evidence

“Top accounting firm Raffa, P.C.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 202651-20031 contacts →

Indirect evidence

“Weiner Brodsky Kider PC is a Washington, D.C-based firm with a national practice focused on compliance, regulatory, transactional and litigation matters related to financial…”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 2026201-50030 contacts →

Indirect evidence

“At Buckley Sandler we focus on three key areas, financial services, government enforcement, and litigation, and do them exceptionally well.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 2026201-50028 contacts →

Indirect evidence

“Since our founding in 1983, Bazilio Cobb Associates has provided professional services to federal, state, and local government agencies; Fortune 500 companies; nonprofit…”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 2026201-50022 contacts →

Indirect evidence

“At Buckley we focus on three key areas, financial services, government enforcement, and litigation, and do them exceptionally well.”

Source: RevenueBase Database · checked Sep 22, 2026
8Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 202651-20021 contacts →

Partial evidence

“IBS is an Accounting, Finance, Management, and Transaction Advisory consulting firm.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 202611-5018 contacts →

Indirect evidence

“Silver, Freedman, Taff & Tiernan LLP, is a preeminent legal services provider based in Washington, DC.”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 202611-5017 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 202611-5015 contacts →

Indirect evidence

“As a premier, D.C-based boutique firm, we regularly take on the government in high-stakes litigation and investigations.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 202651-20014 contacts →

Indirect evidence

“The Kenrich Group, an HKA Company, is a business and litigation consulting firm with 50 offices in 19 countries.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 20261-1011 contacts →

Indirect evidence

“Jacobson Lopez is a white collar boutique in Washington, D.C.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 202611-507 contacts →

Indirect evidence

“Nationally-recognized and award-winning economists, lawyers and public policy experts providing public policy analysis; business process improvement; research and analysis…”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 202611-506 contacts →

Partial evidence

“Our professionals have focused our careers upon becoming functionally excellent in the fields of accounting and finance.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceWashington, IA, United StatesHQ checked Sep 22, 20261-105 contacts →

Indirect evidence

“At AllenMitchell, our goal is to provide the top shelf service that you've come to expect at larger national and regional firms but in a more relaxed environment and at a price…”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 202611-505 contacts →

Indirect evidence

“Lawyers and Consultants | Tier-1 Services Since 1799 | From the trade courts of the 19th-century Levant to the corridors of Washington D.C, Melbourne, Toronto, and Abu Dhabi…”

Source: RevenueBase Database · checked Sep 22, 2026
18Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 20261-105 contacts →

Partial evidence

“McIntyre & Lemon, PLLC helps clients efficiently navigate the complex maze of federal and state laws and regulations.”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 202611-505 contacts →

Indirect evidence

“Welcome to the firm of”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 202651-2005 contacts →

Indirect evidence

“Hamilton Enterprises, LLC, is an assurance and advisory company that provides professional services to clients.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“MANTID INTERNATIONAL LLC is a compliance and business intelligence consulting firm.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceWashington, DC, United StatesHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“Stonington Global, founded and chaired by renowned superlobbyist and attorney Nicolas D.”

Source: RevenueBase Database · checked Sep 22, 2026
23Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 20261-103 contacts →

Partial evidence

“Edinger Associates PLLC is a boutique business and finance law and consulting firm based in Washington, DC, with a focus on mergers and acquisitions, exchanges, joint ventures…”

Source: RevenueBase Database · checked Sep 22, 2026
24Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 20261-102 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
25Partial evidenceWashington, DC, United StatesHQ checked Sep 22, 20261-102 contacts →

Partial evidence

“You don't have to be an Accounting Pro.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 75 accounting law firms based in Washington, United States

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Accounting law firms based in Washington, United States at a glance

As of Sep 22, 2026
62.4%Verified-email coverage
37.7Average contacts per company
1-10Median size (employees)
428.0%Largest-city concentration · New York
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
43
11-50
20
51-200
5
201-500
3
501-1,000
1
1,001-5,000
3

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 75 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among accounting law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Washington, United States whose own description of what they do matches “accounting law firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names accounting law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among accounting law firms, and records with no verified work email. Companies headquartered outside Washington are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,765 across the full list. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Accounting law firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names accounting law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 75 accounting law firms headquartered in Washington, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Venable LLP, headquartered in Washington, tops this list with the largest team on record.

Which city has the most accounting law firms?

New York leads with 321 headquartered companies, followed by Houston (144) and Miami (121).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,765 verified decision-maker contacts tracked across these 75 companies.

How current is this list?

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