Company lists · Data refreshed September 2026

Top 25 Cross border transaction law firms based in the United States

Name: Cross border transaction law firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 1,565 companies tracked

RevenueBase identified 1,565 cross border transaction law firms headquartered in the United States as of September 2026 and tracks 56,266 professional contacts across them, including 30,915 with verified work emails and 26,915 with mobile numbers. New York is the largest hub.

This list covers cross border transaction 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

1,565Companies

56,266Contacts tracked

30,915Verified emails

26,915Mobile numbers

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The 25 largest cross border transaction law firms based in the United States

Ranked by team size

Top 25 of 1,565 cross border transaction 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 cross border transaction 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	White & Case LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	7,485 contacts →
	Partial evidence “White & Case is a global law firm with longstanding offices in the markets that matter today.” Source: RevenueBase Database · checked Sep 29, 2026
2	Cooley LLP	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,341 contacts →
	Indirect evidence “Clients partner with Cooley on transformative deals, complex IP and regulatory matters, and high-stakes litigation.” Source: RevenueBase Database · checked Sep 29, 2026
3	Perkins Coie	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,746 contacts →
	Indirect evidence “Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.” Source: RevenueBase Database · checked Sep 29, 2026
4	Arnold & Porter	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,333 contacts →
	Partial evidence “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Source: RevenueBase Database · checked Sep 29, 2026
5	Seyfarth Shaw LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,167 contacts →
	Indirect evidence “High stakes.” Source: RevenueBase Database · checked Sep 29, 2026
6	Pillsbury Winthrop Shaw Pittman LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,949 contacts →
	Partial evidence “Pillsbury is one of the world’s foremost law firms, operating at the intersection of technology innovation, capital and government.” Source: RevenueBase Database · checked Sep 29, 2026
7	Venable LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,790 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 29, 2026
8	Ballard Spahr LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,682 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
9	Dorsey & Whitney LLP	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,599 contacts →
	Partial evidence “Clients have relied on the international law firm of Dorsey & Whitney LLP since 1912 as a trusted legal advisor and valued business partner.” Source: RevenueBase Database · checked Sep 29, 2026
10	Haynes And Boone, LLP	Partial evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,558 contacts →
	Partial evidence “Haynes Boone is among the fastest-growing firms in the Am Law 100, providing full-service counsel across sectors, including corporate, energy, financial services, real estate…” Source: RevenueBase Database · checked Sep 29, 2026
11	Quarles & Brady LLP	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,318 contacts →
	Indirect evidence “For over 125 years, Quarles & Brady LLP has provided quality legal services to a wide range of industries on a national stage.” Source: RevenueBase Database · checked Sep 29, 2026
12	Brownstein Hyatt Farber Schreck	Partial evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	501-1,000	902 contacts →
	Partial evidence “For decades, we’ve positioned ourselves at the intersection of law, business and policy to bring a multidisciplinary strategy to every issue.” Source: RevenueBase Database · checked Sep 29, 2026
13	Vorys, Sater, Seymour And Pease LLP	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 29, 2026	501-1,000	831 contacts →
	Indirect evidence “We have been an innovative and forward-thinking firm since day one.” Source: RevenueBase Database · checked Sep 29, 2026
14	Carlton Fields	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 29, 2026	501-1,000	790 contacts →
	Indirect evidence “We view the world from our clients’ perspectives, helping them to lead and innovate across industries and around the globe.” Source: RevenueBase Database · checked Sep 29, 2026
15	Butler Snow LLP	Indirect evidence	Ridgeland, MS, United StatesHQ checked Sep 29, 2026	501-1,000	685 contacts →
	Indirect evidence “With over 400 attorneys in offices in Albuquerque, Ambler (PA), Atlanta, Austin, Baton Rouge, Bethlehem (PA), Birmingham, Boston, Charleston, Dallas, Denver, Gulfport, Huntsville…” Source: RevenueBase Database · checked Sep 29, 2026
16	Parker POE Adams & Bernstein LLP	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 29, 2026	501-1,000	584 contacts →
	Partial evidence “Businesses and local governments turn to Parker Poe to structure transactions, navigate regulations, and resolve disputes.” Source: RevenueBase Database · checked Sep 29, 2026
17	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
18	Curtis, Mallet-Prevost, Colt & Mosle LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	484 contacts →
	Partial evidence “Curtis, Mallet-Prevost, Colt & Mosle LLP is a leading international law firm.” Source: RevenueBase Database · checked Sep 29, 2026
19	Miles & Stockbridge P.C	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 29, 2026	201-500	472 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
20	Arnall Golden Gregory LLP	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	201-500	437 contacts →
	Partial evidence “Arnall Golden Gregory (AGG) is an Am Law 200 law firm with offices in Atlanta and Washington, DC.” Source: RevenueBase Database · checked Sep 29, 2026
21	Hahn Loeser & Parks LLP	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 29, 2026	201-500	355 contacts →
	Partial evidence “Founded in 1920, Hahn Loeser & Parks LLP is a full-service law firm with offices in Cleveland and Columbus, Ohio; Naples, Fort Myers, Sarasota, Tampa and Orlando, Florida; San…” Source: RevenueBase Database · checked Sep 29, 2026
22	Neal, Gerber & Eisenberg LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	353 contacts →
	Partial evidence “Neal Gerber Eisenberg is a Chicago-based law firm whose attorneys share a culture of teamwork and devotion to personalized client service to advance our clients’ business…” Source: RevenueBase Database · checked Sep 29, 2026
23	Rutan & Tucker, LLP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	201-500	338 contacts →
	Indirect evidence “Rutan & Tucker’s highly strategic, forward thinking approach to individual cases and client needs has been the hallmark of the firm since A.W.” Source: RevenueBase Database · checked Sep 29, 2026
24	Post & Schell, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	201-500	336 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
25	Calfee, Halter & Griswold LLP	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 29, 2026	201-500	326 contacts →
	Partial evidence “Calfee, Halter & Griswold LLP is a full-service corporate law firm with 160 attorneys located throughout our Cleveland, Columbus, Cincinnati, and Indianapolis offices.” 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: cross border transaction 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 cross border transaction law firms.
Partial evidence: Its own public description names part of cross border transaction law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cross border transaction 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 1,565 cross border transaction law firms based in the United States

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Cross border transaction law firms based in the United States at a glance

As of Sep 29, 2026

54.9%Verified-email coverage

47.8%Mobile-number coverage

36.0Average contacts per company

1-10Median size (employees)

12.1%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,064

11-50

351

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 31.0d

13,1000–30

16,60131–60

1,01861–90

4490–180

152180+

Company record updated

Median 88.0d

00–30

16,33531–60

13,13561–90

24,08490–180

2,712180+

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 cross border transaction 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 “cross border transaction 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 cross border transaction 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 cross border transaction 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, 30,915 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.

Cross border transaction law firms by metro

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 cross border transaction 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 cross border transaction law firms are there based in the United States?

RevenueBase identified 1,565 cross border transaction 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?

White & Case LLP, headquartered in New York, tops this list with the largest team on record.

Which city has the most cross border transaction law firms?

New York leads with 189 headquartered companies, followed by Miami (72) and Washington (72).

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 30,915 verified decision-maker contacts tracked across these 1,565 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.