Company lists · Data refreshed September 2026

Top 25 Law firm administrative services based in the United States

Name: Law firm administrative services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 8,740 companies tracked

RevenueBase identified 8,740 law firm administrative services headquartered in the United States as of September 2026 and tracks 188,858 professional contacts across them, including 98,427 with verified work emails and 102,152 with mobile numbers. New York is the largest hub.

This list covers law firm administrative services 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 4, 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 4, 2026 86% judged on-target in blind review

8,740Companies

188,858Contacts tracked

98,427Verified emails

102,152Mobile numbers

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The 25 largest law firm administrative services based in the United States

Ranked by team size

Top 25 of 8,740 law firm administrative services based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to law firm administrative services: 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	Despacho DE Abogados	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,244 contacts →
	Indirect evidence “The Gold Group is a top producing team within Keller Williams Beverly Hills family.” Source: RevenueBase Database · checked Sep 4, 2026
2	Lewis Brisbois	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,066 contacts →
	Partial evidence “Established in 1979, Lewis Brisbois Bisgaard & Smith LLP is a national, full-service law firm with more than 1,600 attorneys and 54 offices in 30 states and the District of…” Source: RevenueBase Database · checked Sep 4, 2026
3	Gordon Rees Scully Mansukhani, LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,807 contacts →
	Partial evidence “As the only full-service law firm with offices and attorneys in all 50 states, Gordon Rees Scully Mansukhani delivers maximum value to our clients by combining the resources of a…” Source: RevenueBase Database · checked Sep 4, 2026
4	Husch Blackwell	Partial evidence	20+ U.s. Offices, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,516 contacts →
	Partial evidence “Husch Blackwell is a different kind of law firm–structured around our clients’ industries and built on a culture of selfless service.” Source: RevenueBase Database · checked Sep 4, 2026
5	Nelson Mullins Riley & Scarborough	Partial evidence	Columbia, SC, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,036 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 4, 2026
6	Taft Stettinius & Hollister LLP	Indirect evidence	Cincinnati, IN, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,963 contacts →
	Indirect evidence “At Taft, we work as one team, driven and committed to helping you succeed.” Source: RevenueBase Database · checked Sep 4, 2026
7	Barnes & Thornburg LLP	Indirect evidence	Indianapolis, MA, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,920 contacts →
	Indirect evidence “In an evolving business landscape, we stand ready at a moment’s notice, adapting with agility and precision to achieve your highest goals.” Source: RevenueBase Database · checked Sep 4, 2026
8	Venable LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,791 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 4, 2026
9	Ballard Spahr LLP	Partial evidence	Philadelphia, DC, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,720 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 4, 2026
10	Dinsmore & Shohl LLP	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,709 contacts →
	Indirect evidence “Dinsmore & Shohl LLP has a nationwide team of more than 750 attorneys who are trusted advisers to Fortune 500 companies, institutions, associations, governments, professional…” Source: RevenueBase Database · checked Sep 4, 2026
11	Bradley Arant Boult Cummings LLP	Partial evidence	Birmingham, AL, United StatesHQ checked Sep 4, 2026	501-1,000	1,431 contacts →
	Partial evidence “Ranked in the Am Law 100, Bradley is a national law firm with a reputation for skilled legal work, exceptional client service, and impeccable integrity.” Source: RevenueBase Database · checked Sep 4, 2026
12	Clark Hill LAW	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,355 contacts →
	Indirect evidence “At Clark Hill, our value proposition is simple.” Source: RevenueBase Database · checked Sep 4, 2026
13	Quarles & Brady LLP	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,333 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 4, 2026
14	Snell & Wilmer	Partial evidence	Phoenix, CA, United StatesHQ checked Sep 4, 2026	501-1,000	1,233 contacts →
	Partial evidence “Founded in 1938, Snell & Wilmer is a full-service business law firm with more than 500 lawyers practicing in 17 locations throughout the United States and in Mexico.” Source: RevenueBase Database · checked Sep 4, 2026
15	Hinshaw & Culbertson LLP	Partial evidence	Chicago, CA, United StatesHQ checked Sep 4, 2026	501-1,000	1,193 contacts →
	Partial evidence “Hinshaw & Culbertson LLP is a U.S-based law firm with offices nationwide.” Source: RevenueBase Database · checked Sep 4, 2026
16	Stinson LLP	Indirect evidence	500 Attorneys. 16 Locations Nationwide., CO, United StatesHQ checked Sep 4, 2026	501-1,000	1,170 contacts →
	Indirect evidence “Stinson LLP collaborates with clients ranging from individuals and privately held enterprises to national companies and international public corporations.” Source: RevenueBase Database · checked Sep 4, 2026
17	Quintairos, Prieto, Wood & Boyer, P.A	Partial evidence	Miami, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,060 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 4, 2026
18	Dickinson Wright	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 4, 2026	501-1,000	1,030 contacts →
	Indirect evidence “Dickinson Wright is a growing, full-service firm of experienced, creative, diverse and dedicated legal professionals.” Source: RevenueBase Database · checked Sep 4, 2026
19	Thompson Coburn LLP	Partial evidence	Saint Louis, MO, United StatesHQ checked Sep 4, 2026	501-1,000	993 contacts →
	Partial evidence “Thompson Coburn is a full-service, values-driven law firm with offices strategically located in Birmingham, Chicago, Dallas, Los Angeles, New York, Southern Illinois, St.” Source: RevenueBase Database · checked Sep 4, 2026
20	Kutak Rock	Indirect evidence	United StatesHQ checked Sep 4, 2026	501-1,000	987 contacts →
	Indirect evidence “We are a U.S.” Source: RevenueBase Database · checked Sep 4, 2026
21	Thompson Hine LLP	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 4, 2026	501-1,000	939 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 4, 2026
22	Saul Ewing LLP	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 4, 2026	501-1,000	918 contacts →
	Indirect evidence “Inspired People.” Source: RevenueBase Database · checked Sep 4, 2026
23	Benesch LAW	Partial evidence	Cleveland, NY, United StatesHQ checked Sep 4, 2026	501-1,000	853 contacts →
	Partial evidence “Benesch is an Am Law 200 business law firm and limited liability partnership with offices in Chicago, Cleveland, Columbus, New York, San Francisco and Wilmington.” Source: RevenueBase Database · checked Sep 4, 2026
24	Phelps Dunbar LLP	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 4, 2026	501-1,000	826 contacts →
	Indirect evidence “As an AmLaw 200 firm, Phelps provides strategic legal counsel to businesses across the South, with 17 offices in the U.S.” Source: RevenueBase Database · checked Sep 4, 2026
25	Aderant	Partial evidence	Atlanta, CA, United StatesHQ checked Sep 4, 2026	501-1,000	816 contacts →
	Partial evidence “Aderant is dedicated to helping law firms run a better business.” Source: RevenueBase Database · checked Sep 4, 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: law firm administrative services. 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 law firm administrative services.
Partial evidence: Its own public description names part of law firm administrative services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name law firm administrative services. 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 8,740 law firm administrative services based in the United States

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Law firm administrative services based in the United States at a glance

As of Sep 4, 2026

52.1%Verified-email coverage

54.1%Mobile-number coverage

21.6Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · New York

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

5,228

11-50

2,484

51-200

737

201-500

150

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

8,90431–60

52,54161–90

36,56490–180

418180+

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 law firm administrative services, 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 “law firm administrative services”. 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 law firm administrative services), 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 law firm administrative services, 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, 98,427 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 4, 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.

Law firm administrative services 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 law firm administrative services, 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 law firm administrative services are there based in the United States?

RevenueBase identified 8,740 law firm administrative services 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?

Despacho DE Abogados, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most law firm administrative services?

New York leads with 325 headquartered companies, followed by Chicago (191) and Los Angeles (179).

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 98,427 verified decision-maker contacts tracked across these 8,740 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 4, 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.