Company lists · Data refreshed September 2026

Top 25 Outsourcing law firms based in the United States

Name: Outsourcing 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 21, 2026 1,587 companies tracked

RevenueBase identified 1,587 outsourcing law firms headquartered in the United States as of September 2026 and tracks 69,796 professional contacts across them, including 32,803 with verified work emails. New York is the largest hub.

This list covers outsourcing 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 21, 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 21, 2026 86% judged on-target in blind review

1,587Companies

69,796Contacts tracked

32,803Verified emails

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The 25 largest outsourcing law firms based in the United States

Ranked by team size

Top 25 of 1,587 outsourcing law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to outsourcing 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 21, 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 21, 2026
2	EPIQ	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	5,001-10,000	6,335 contacts →
	Partial evidence “Epiq, a global technology-enabled services leader to the legal industry and corporations, takes on large-scale, increasingly complex tasks for corporate counsel, law firms, and…” Source: RevenueBase Database · checked Sep 21, 2026
3	Integreon	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,678 contacts →
	Partial evidence “Integreon is a trusted provider of legal, creative and business outsourced services to corporations and law firms worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
4	Consilio LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,406 contacts →
	Indirect evidence “Consilio stands as the global leader in eDiscovery, document review, flexible legal talent, and legal advisory & transformation consulting services.” Source: RevenueBase Database · checked Sep 21, 2026
5	Seyfarth Shaw LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,167 contacts →
	Indirect evidence “High stakes.” Source: RevenueBase Database · checked Sep 21, 2026
6	Unitedlex	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,098 contacts →
	Partial evidence “UnitedLex is the preeminent business partner for legal delivering solutions that achieve value and drive growth for corporate legal departments and law firms in the areas of…” Source: RevenueBase Database · checked Sep 21, 2026
7	Faegre Drinker	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,848 contacts →
	Indirect evidence “Faegre Drinker is a firm designed for clients.” Source: RevenueBase Database · checked Sep 21, 2026
8	Ballard Spahr LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 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 21, 2026
9	Clark Hill LAW	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,343 contacts →
	Indirect evidence “At Clark Hill, our value proposition is simple.” Source: RevenueBase Database · checked Sep 21, 2026
10	Quarles & Brady LLP	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 21, 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 21, 2026
11	Quislex	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,043 contacts →
	Partial evidence “QuisLex is an award-winning alternative legal services provider (ALSP) helping corporate legal departments and law firms manage risk, control cost, and drive efficiency across…” Source: RevenueBase Database · checked Sep 21, 2026
12	Thompson Hine LLP	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 21, 2026	501-1,000	929 contacts →
	Partial evidence “Thompson Hine LLP, a full-service business law firm with over 400 lawyers in 11 offices, was ranked number 1 in the category "Most innovative North American law firms: New working…” Source: RevenueBase Database · checked Sep 21, 2026
13	MORAE	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	873 contacts →
	Indirect evidence “Morae Global Corporation ("Morae") is trusted around the world for the delivery of digital and business solutions for a constantly changing legal industry.” Source: RevenueBase Database · checked Sep 21, 2026
14	Hall Booth Smith, P.C	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	501-1,000	815 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 21, 2026
15	Jones Walker LLP	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 21, 2026	501-1,000	799 contacts →
	Indirect evidence “Jones Walker LLP provides an extensive range of legal services to a national and international corporate client base through offices in Alabama, Arizona, Florida, Georgia…” Source: RevenueBase Database · checked Sep 21, 2026
16	Carlton Fields	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 21, 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 21, 2026
17	Wood, Smith, Henning & Berman LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	501-1,000	781 contacts →
	Indirect evidence “Wood, Smith, Henning & Berman offers world-class representation for clients ranging from individuals to Fortune 500 corporations, with an emphasis on small to middle market firms.” Source: RevenueBase Database · checked Sep 21, 2026
18	Lexitas	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	768 contacts →
	Indirect evidence “For legal, insurance, and corporate leaders responsible for vital outcomes, Lexitas delivers highly responsive professional services paired with powerful technology to help move…” Source: RevenueBase Database · checked Sep 21, 2026
19	DISCO	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 2026	501-1,000	712 contacts →
	Partial evidence “DISCO is a litigation technology company that helps top law firms and corporations take on their biggest cases.” Source: RevenueBase Database · checked Sep 21, 2026
20	Harbor	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	698 contacts →
	Indirect evidence “Harbor is the preeminent provider of expert services across strategy, legal technology, operations, and intelligence.” Source: RevenueBase Database · checked Sep 21, 2026
21	Armstrong Teasdale	Indirect evidence	Saint Louis, MO, United StatesHQ checked Sep 21, 2026	501-1,000	636 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 21, 2026
22	Shutts & Bowen LLP	Partial evidence	Miami, FL, United StatesHQ checked Sep 21, 2026	501-1,000	613 contacts →
	Partial evidence “Shutts & Bowen is a Florida-based law firm, headquartered in Miami, representing individuals and business entities nationally and internationally.” Source: RevenueBase Database · checked Sep 21, 2026
23	DTI LLC	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1,001-5,000	537 contacts →
	Strong evidence “Founded in 1998, DTI is an industry leading legal process outsourcing (LPO) company serving law firms and corporations around the world.” Source: RevenueBase Database · checked Sep 21, 2026
24	Magna Legal Services	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	501-1,000	500 contacts →
	Partial evidence “Magna Legal Services provides end-to-end legal support services to law firms, corporations and governmental agencies throughout the nation.” Source: RevenueBase Database · checked Sep 21, 2026
25	Special Counsel	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 21, 2026	201-500	443 contacts →
	Indirect evidence “At Special Counsel, we are a leading provider of legal consulting, attorney recruiting, legal talent, legal technology and eDiscovery solutions, with a growing international…” Source: RevenueBase Database · checked Sep 21, 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: outsourcing 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 outsourcing law firms.
Partial evidence: Its own public description names part of outsourcing law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name outsourcing 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 1,587 outsourcing law firms based in the United States

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Outsourcing law firms based in the United States at a glance

As of Sep 21, 2026

47.0%Verified-email coverage

44.0Average contacts per company

1-10Median size (employees)

7.1%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

894

11-50

429

51-200

168

201-500

501-1,000

1,001-5,000

5,001-10,000

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 1,587 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 outsourcing 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 “outsourcing 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 outsourcing 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 outsourcing 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, 32,803 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 21, 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.

Outsourcing 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 outsourcing 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 outsourcing law firms are there based in the United States?

RevenueBase identified 1,587 outsourcing 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 outsourcing law firms?

New York leads with 112 headquartered companies, followed by Dallas (52) and Houston (48).

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 32,803 verified decision-maker contacts tracked across these 1,587 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 21, 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.