Company lists · Data refreshed September 2026

Top 25 Securities compliance law firms based in the United States

RevenueBase identified 1,813 securities compliance law firms headquartered in the United States as of September 2026 and tracks 46,632 professional contacts across them, including 26,188 with verified work emails. New York is the largest hub.

This list covers securities compliance law firms headquartered in the 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
1,813Companies
46,632Contacts tracked
26,188Verified emails
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The 25 largest securities compliance law firms based in the United States

Ranked by team size
Top 25 of 1,813 securities compliance law firms based in the 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWashington, DC, United StatesHQ checked Sep 29, 20261,001-5,0002,333 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
2Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 29, 20261,001-5,0002,041 contacts →

Partial evidence

“Dechert is the law firm that helps business leaders lead.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceColumbia, SC, United StatesHQ checked Sep 29, 20261,001-5,0002,012 contacts →

Partial evidence

“Established in 1897, Nelson Mullins is an Am Law 100 firm of more than attorneys, policy advisors and professionals with 33 offices in 17 states and Washington, D.C.”

Source: RevenueBase Database · checked Sep 29, 2026
4Strong evidenceWashington, DC, United StatesHQ checked Sep 29, 20261,001-5,0001,790 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
5Partial evidenceLancaster, PA, United StatesHQ checked Sep 29, 20261,001-5,0001,740 contacts →

Partial evidence

“DFIN is the leading global provider of compliance and regulatory software and services, fueling end-to-end investment company regulatory compliance needs, complex capital markets…”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 29, 20261,001-5,0001,682 contacts →

Partial evidence

“Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceDetroit, MI, United StatesHQ checked Sep 29, 20261,001-5,0001,343 contacts →

Indirect evidence

“At Clark Hill, our value proposition is simple.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 2026501-1,0001,188 contacts →

Partial evidence

“Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceMiami, FL, United StatesHQ checked Sep 29, 20261,001-5,0001,068 contacts →

Partial evidence

“Over the past 25 years, QPWB is one of the fastest-growing law firms in the US.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceAtlanta, GA, United StatesHQ checked Sep 29, 2026501-1,000815 contacts →

Partial evidence

“Established in 1989, Hall Booth Smith, P.C.(HBS) is a full-service law firm with 33 offices across the United States.”

Source: RevenueBase Database · checked Sep 29, 2026
11Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,000788 contacts →

Strong evidence

“CT Corporation helps small businesses, corporations, and law firms around the world manage their most critical business and legal compliance responsibilities.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceU.S., United StatesHQ checked Sep 29, 2026501-1,000758 contacts →

Indirect evidence

“At Adams & Reese, we take things personally.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 2026501-1,000690 contacts →

Partial evidence

“Kelley Drye is an AmLaw 200 law firm of more than 350 lawyers and other professionals practicing in New York, NY; Washington, D.C; Chicago, IL; Houston, TX, Los Angeles, CA; San…”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceOrlando, FL, United StatesHQ checked Sep 29, 2026501-1,000672 contacts →

Indirect evidence

“GrayRobinson is a multidimensional team of attorneys, advisors, and consultants recognized as one of the most influential firms in Florida.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceSt. Louis, MO, United StatesHQ checked Sep 29, 2026501-1,000636 contacts →

Indirect evidence

“For 125 years, Armstrong Teasdale has forged long-term relationships with clients large and small around the globe.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 29, 2026501-1,000584 contacts →

Indirect evidence

“Businesses and local governments turn to Parker Poe to structure transactions, navigate regulations, and resolve disputes.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceWashington, DC, United StatesHQ checked Sep 29, 2026501-1,000576 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 2026201-500565 contacts →

Partial evidence

“Chapman is a law firm focused on finance.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceWest Palm Beach, FL, United StatesHQ checked Sep 29, 2026501-1,000530 contacts →

Partial evidence

“Gunster, Florida’s law firm for leaders, provides full-service legal counsel to leading organizations and individuals from its 13 offices statewide.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 29, 2026201-500482 contacts →

Indirect evidence

“At Reinhart Boerner Van Deuren, we know that every trusted relationship begins with understanding.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceBaltimore, MD, United StatesHQ checked Sep 29, 2026201-500472 contacts →

Partial evidence

“Miles & Stockbridge is an Am Law 200 law firm with more than 200 lawyers and offices in Maryland, Washington, D.C, Virginia and New York.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 29, 2026201-500447 contacts →

Indirect evidence

“Philadelphia Grown.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceLouisville, KY, United StatesHQ checked Sep 29, 2026201-500426 contacts →

Partial evidence

“A full-service law firm representing clients across the United States and internationally, Stites & Harbison, PLLC is known as a preeminent firm managing sophisticated…”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidencePortland, OR, United StatesHQ checked Sep 29, 2026201-500398 contacts →

Indirect evidence

“We focus our practices by industry, so you can access legal services based on your unique needs in today’s economy.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 29, 2026201-500336 contacts →

Indirect evidence

“For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 1,813 securities compliance law firms based in the United States

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Securities compliance law firms based in the United States at a glance

As of Sep 29, 2026
56.2%Verified-email coverage
25.7Average contacts per company
1-10Median size (employees)
9.8%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,198
11-50
438
51-200
119
201-500
29
501-1,000
14
1,001-5,000
12

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,813 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 the 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 United States 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, 26,188 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.

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 the United States?

RevenueBase identified 1,813 securities compliance law firms headquartered in the 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 has the most securities compliance law firms?

New York leads 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 26,188 verified decision-maker contacts tracked across these 1,813 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.