Company lists · Data refreshed September 2026

Top 25 Securities compliance law firms based in Washington, United States

Name: Securities compliance law 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 29, 2026 72 companies tracked

RevenueBase identified 72 securities compliance law firms headquartered in Washington, United States as of September 2026 and tracks 5,243 professional contacts across them, including 3,607 with verified work emails. Across the United States, New York is the largest hub for this category (177 companies); Washington follows with 72.

This list covers securities compliance 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 29, 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 29, 2026 86% judged on-target in blind review

72Companies

5,243Contacts tracked

3,607Verified emails

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The 25 largest securities compliance law firms based in Washington, United States

Ranked by team size

Top 25 of 72 securities compliance law firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to securities compliance 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Arnold & Porter	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,333 contacts →
	Indirect evidence “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Source: RevenueBase Database · checked Sep 29, 2026
2	Venable LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,790 contacts →
	Strong 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 29, 2026
3	Wiley Rein LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	501-1,000	576 contacts →
	Indirect evidence “Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Source: RevenueBase Database · checked Sep 29, 2026
4	Reno & Cavanaugh, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	51-200	73 contacts →
	Partial evidence “Since 1977, Reno & Cavanaugh has been a national law firm dedicated to strengthening communities through strategic use of public and private resources.” Source: RevenueBase Database · checked Sep 29, 2026
5	Tiber Hudson LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	36 contacts →
	Partial evidence “Tiber Hudson LLC is a boutique law firm focused in providing legal services including complex commercial litigation, complex commercial transactions, corporate structure and…” Source: RevenueBase Database · checked Sep 29, 2026
6	Weiner Brodsky Kider PC	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	51-200	31 contacts →
	Partial 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 29, 2026
7	Buckley Sandler LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	201-500	30 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 29, 2026
8	Duncan, Weinberg, Genzer & Pembroke, P.C. Dwgp	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	28 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026
9	Buckley LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	201-500	22 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 29, 2026
10	Luse Gorman, PC	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	21 contacts →
	Partial evidence “Luse Gorman was founded in 1993 as a specialty law firm dedicated to representing financial institutions, with a particular emphasis on community banks.” Source: RevenueBase Database · checked Sep 29, 2026
11	Silver, Freedman, Taff & Tiernan LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	18 contacts →
	Indirect evidence “Silver, Freedman, Taff & Tiernan LLP, is a preeminent legal services provider based in Washington, DC.” Source: RevenueBase Database · checked Sep 29, 2026
12	Veritas LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1-10	16 contacts →
	Partial evidence “A full-service business law firm, Veritas Law has expertise in corporate and transactional law, litigation, and licensing.” Source: RevenueBase Database · checked Sep 29, 2026
13	Secil LAW Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	15 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 29, 2026
14	Levine, Blaszak, Block & Boothby, LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
15	Fortney & Scott, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	12 contacts →
	Partial evidence “FortneyScott is a Washington, DC-based law firm counseling and advising clients on the full spectrum of workplace-related matters.” Source: RevenueBase Database · checked Sep 29, 2026
16	Telecommunications LAW Professionals Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1-10	12 contacts →
	Partial evidence “Telecommunications Law Professionals PLLC ("TLP") is committed to assisting clients in meeting the substantial challenges they face in the rapidly changing wireless, wired…” Source: RevenueBase Database · checked Sep 29, 2026
17	Jacobson Lopez Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1-10	11 contacts →
	Indirect evidence “Jacobson Lopez is a white collar boutique in Washington, D.C.” Source: RevenueBase Database · checked Sep 29, 2026
18	Akrivis LAW Group, Pllc	Strong evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1-10	10 contacts →
	Strong evidence “A Washington, DC based law firm with offices in New York and Miami focusing on international trade compliance & enforcement, white collar defense & litigation, international…” Source: RevenueBase Database · checked Sep 29, 2026
19	Ruddy Gregory, Pllc	Partial evidence	Washington, United StatesHQ checked Sep 29, 2026	1-10	9 contacts →
	Partial evidence “Formerly known as Ruddy Law Office, Ruddy Gregory, PLLC ("Ruddy Gregory") is a Washington, DC based boutique law firm that provides legal advice to registered investment advisers…” Source: RevenueBase Database · checked Sep 29, 2026
20	Freeh Sporkin & Sullivan LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “Freeh Sporkin & Sullivan LLP was established by three former federal judges with decades of experience on the federal bench and at the highest levels of the U.S.” Source: RevenueBase Database · checked Sep 29, 2026
21	O Riordan Bethel LAW Firm, LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	7 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 29, 2026
22	Leftwich LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	11-50	7 contacts →
	Indirect evidence “Leftwich LLC is a multi-disciplinary legal and consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026
23	Mcintyre & Lemon, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1-10	5 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 29, 2026
24	Mantid International LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “MANTID INTERNATIONAL LLC is a compliance and business intelligence consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026
25	Compliance Systems Legal Group Cslg	Strong evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Strong evidence “Compliance Systems Legal Group (CSLG) was a boutique law firm that focused exclusively on corporate compliance, ethics and governance.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: securities compliance law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names securities compliance law firms.
Partial evidence: Its own public description names part of securities compliance law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name securities compliance law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 72 securities compliance law firms based in Washington, United States

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Securities compliance law firms based in Washington, United States at a glance

As of Sep 29, 2026

68.8%Verified-email coverage

72.8Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 72 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 securities compliance 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 “securities compliance 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 securities compliance 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 securities compliance 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, 3,607 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 29, 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.

Securities compliance 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 securities compliance 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 securities compliance law firms are there based in Washington, United States?

RevenueBase identified 72 securities compliance 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?

Arnold & Porter, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most securities compliance law firms?

New York leads the United States with 177 headquartered companies, followed by Washington (72) and Chicago (52).

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 3,607 verified decision-maker contacts tracked across these 72 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 29, 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.