Company lists · Data refreshed September 2026

Top 25 HR compliance law firms worldwide

Name: HR compliance law firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 34,237 companies tracked

RevenueBase identified 34,237 HR compliance law firms worldwide as of September 2026 and tracks 291,416 professional contacts across them, including 83,576 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers HR compliance law firms worldwide, 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 28, 2026. Country and city lists for HR compliance law firms follow the table.

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 28, 2026 86% judged on-target in blind review

34,237Companies

291,416Contacts tracked

83,576Verified emails

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The 25 largest HR compliance law firms worldwide

Ranked by team size

Top 25 of 34,237 HR compliance law firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to HR 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	LAW Firm	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	6,284 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
2	Ogletree Deakins	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,708 contacts →
	Partial evidence “Ogletree Deakins is one of the largest labor and employment law firms representing management in all types of employment-related legal matters.” Source: RevenueBase Database · checked Sep 28, 2026
3	Littler	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,555 contacts →
	Partial evidence “Littler is the largest global employment and labor law practice, representing management in all aspects of employment and labor law and serving as a single-source solution…” Source: RevenueBase Database · checked Sep 28, 2026
4	Alston & Bird	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,449 contacts →
	Indirect evidence “At Alston & Bird, a leading international firm, our people trust the people they work for, take pride in what they do, enjoy the people they work with and serve the communities in…” Source: RevenueBase Database · checked Sep 28, 2026
5	Khaitan & CO	Partial evidence	Mumbai, IndiaHQ checked Sep 28, 2026	1,001-5,000	2,332 contacts →
	Partial evidence “Khaitan & Co is one of India's oldest and recognised full service law firms.” Source: RevenueBase Database · checked Sep 28, 2026
6	Jackson Lewis P.C	Partial evidence	New York, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,285 contacts →
	Partial evidence “Focused on employment and labor law since 1958, Jackson Lewis P.C.’s attorneys located in major cities nationwide consistently identify and respond to new ways workplace law…” Source: RevenueBase Database · checked Sep 28, 2026
7	Tozzinifreire Advogados	Partial evidence	São Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,580 contacts →
	Partial evidence “TozziniFreire is one of the leading legal services organizations in Latin America, operating in all areas of Business Law and with a significant track record in serving national…” Source: RevenueBase Database · checked Sep 28, 2026
8	Fisher Phillips	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	501-1,000	1,471 contacts →
	Indirect evidence “With hundreds of attorneys across the globe, Fisher Phillips advises and advocates for employers internationally on some of the most complex and high-profile workplace matters.” Source: RevenueBase Database · checked Sep 28, 2026
9	Clark Hill LAW	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,343 contacts →
	Indirect evidence “At Clark Hill, our value proposition is simple.” Source: RevenueBase Database · checked Sep 28, 2026
10	Pinheiro Neto Advogados	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,250 contacts →
	Indirect evidence “Pinheiro Neto Advogados é um escritório brasileiro com sólida experiência em mais de 40 áreas do Direito Empresarial.” Source: RevenueBase Database · checked Sep 28, 2026
11	Urbano Vitalino Advogados	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,242 contacts →
	Indirect evidence “Com 88 anos de experiência, o Urbano Vitalino Advogados tem como marca sua vasta tradição jurídica.” Source: RevenueBase Database · checked Sep 28, 2026
12	Taylor Rose	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,155 contacts →
	Partial evidence “Taylor Rose is a top 60 independent law firm with 1,700 experts operating nationwide and is recommended by the Legal 500 UK.” Source: RevenueBase Database · checked Sep 28, 2026
13	Peninsula UK	Strong evidence	Manchester, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,075 contacts →
	Strong evidence “Peninsula is the worldwide leader and most trusted provider of employment law, HR and health & safety services, supporting over small businesses in the U.K.” Source: RevenueBase Database · checked Sep 28, 2026
14	Thompson Hine LLP	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 28, 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 28, 2026
15	Human Quality	Indirect evidence	Monterrey, MexicoHQ checked Sep 28, 2026	1,001-5,000	874 contacts →
	Indirect evidence “At Human Quality, we are known as a leading provider of Human Resources solutions that connect top talent with companies.” Source: RevenueBase Database · checked Sep 28, 2026
16	Buchalter	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	501-1,000	843 contacts →
	Partial evidence “Buchalter is a full-service business law firm with offices in Arizona, California, Colorado, Georgia, Illinois, Oregon, Tennessee, Utah, and Washington.” Source: RevenueBase Database · checked Sep 28, 2026
17	Labournet	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 28, 2026	201-500	841 contacts →
	Indirect evidence “Labournet – your strategic partner in simplifying human resource management.” Source: RevenueBase Database · checked Sep 28, 2026
18	Ferreira E Chagas Advogados	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 28, 2026	1,001-5,000	827 contacts →
	Indirect evidence “A crescente complexidade das relações, tanto humanas como empresariais, cria, cada vez mais, questões revestidas de cunho intrinsecamente jurídico, com implicações em todos os…” Source: RevenueBase Database · checked Sep 28, 2026
19	Phelps Dunbar LLP	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 28, 2026	501-1,000	824 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 28, 2026
20	Siqueiracastro	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	821 contacts →
	Indirect evidence “We can say with pride and confidence: in more than 70 years of history, SiqueiraCastro Advogados has played a fundamental role in the evolution of the legal market in Brazil.” Source: RevenueBase Database · checked Sep 28, 2026
21	DE Brauw Blackstone Westbroek	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 28, 2026	501-1,000	799 contacts →
	Indirect evidence “Our clients, people and drive for quality are the energisers of our firm.” Source: RevenueBase Database · checked Sep 28, 2026
22	CT Corporation	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	788 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 28, 2026
23	Wood, Smith, Henning & Berman LLP	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 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 28, 2026
24	Herzog	Partial evidence	Tel Aviv, IsraelHQ checked Sep 28, 2026	501-1,000	749 contacts →
	Partial evidence “Herzog Fox & Neeman is Israel’s largest law firm and has earned a reputation as market leader, evidenced by consistent top-tier rankings in both international and Israeli legal…” Source: RevenueBase Database · checked Sep 28, 2026
25	Fordharrison LLP	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	201-500	746 contacts →
	Partial evidence “FordHarrison LLP - your partner in employment law.” Source: RevenueBase Database · checked Sep 28, 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: HR 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 HR compliance law firms.
Partial evidence: Its own public description names part of HR 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 HR 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 34,237 HR compliance law firms worldwide

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HR compliance law firms worldwide at a glance

As of Sep 28, 2026

28.7%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

4.3%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

24,682

11-50

7,740

51-200

1,191

201-500

259

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 HR 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.
Coverage: Every country. Country and city lists for HR compliance law firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “HR 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 HR 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 HR compliance law firms, and records with no verified work email.
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, 83,576 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 28, 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.

HR compliance law firms by location

170 lists · largest first

Every HR compliance law firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 HR 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 HR compliance law firms are there worldwide?

RevenueBase identified 34,237 HR compliance law firms worldwide 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?

LAW Firm, headquartered in London, tops this list with the largest team on record.

Which country has the most HR compliance law firms?

Brazil leads with 6,152 companies, followed by the United States (4,170) and India (2,041). Every HR compliance law firms list by country and city is linked on this page.

Which city has the most HR compliance law firms?

Sao Paulo leads with 1463 headquartered companies, followed by Paris (476) and Rio De Janeiro (416).

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 83,576 verified decision-maker contacts tracked across these 34,237 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 28, 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.