Company lists · Data refreshed November 2026

Top 25 Human resources support services worldwide

Name: Human resources support services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 34,851 companies tracked

RevenueBase identified 34,851 company matches for human resources support services worldwide as of November 2026 and tracks 554,884 professional contacts across them, including 117,537 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for human resources support services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for human resources support services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

34,851Companies

554,884Contacts tracked

117,537Verified emails

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The 25 largest human resources support services worldwide

Ranked by team size

Top 25 of 34,851 company matches for human resources support services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ADP	Exact match	Roseland, QC, United StatesHQ recorded Nov 6, 2026	10001+	89,840 contacts →
	Exact match “Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Paychex	Exact match	Rochester, NY, United StatesHQ recorded Nov 6, 2026	10001+	18,792 contacts →
	Exact match “As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	LHH	Exact match	Jacksonville, TX, United StatesHQ recorded Nov 6, 2026	10001+	13,920 contacts →
	Exact match “At LHH, we believe work should be meaningful, fulfilling, and connected.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Randstad USA	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	9,496 contacts →
	Exact match “Randstad North America, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	City Of Chicago	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	10001+	7,872 contacts →
	Exact match “The City of Chicago is the third largest city in the United States, with a population of nearly three million people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Insperity	Exact match	Kingwood, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,943 contacts →
	Exact match “Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Trinet	Exact match	Dublin, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,432 contacts →
	Exact match “TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	GUSTO	Exact match	San Francisco, CO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,083 contacts →
	Exact match “Gusto has been growing the small business economy with technology and heart for more than a decade.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Randstad India	Exact match	Chennai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	3,467 contacts →
	Exact match “Randstad is the world’s largest talent company and a partner of choice to clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	NGA Human Resources, An Alight Company	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	2,833 contacts →
	Exact match “At Alight \| NGA Human Resources our mission is to make HR work better.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Groupe Samsic	Exact match	Cesson-sevigne, FranceHQ recorded Nov 6, 2026	10001+	2,583 contacts →
	Exact match “Since 1986, the development of Samsic has been entirely due to the skills of the 70 mens and women who make up our company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	BUK	Exact match	Miguel Hidalgo, MexicoHQ recorded Nov 6, 2026	1,001-5,000	2,339 contacts →
	Exact match “Un software de recursos humanos para atender todas las necesidades de tus colaboradores.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Remedy Intelligent Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	10001+	2,182 contacts →
	Exact match “Remedy Intelligent Staffing is a nationwide professional staffing organization with more than 50 years of recruiting and selection expertise to match job candidates with positions…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Synergie Italia	Exact match	Turin, ItalyHQ recorded Nov 6, 2026	501-1,000	1,844 contacts →
	Exact match “L’Italia è piena di talenti: il nostro lavoro è riconoscerli!” Synergie Italia S.p.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Eurofirms Group People First	Exact match	Cassá De La Selva, SpainHQ recorded Nov 6, 2026	1,001-5,000	1,826 contacts →
	Exact match “Eurofirms Group is Spain's first talent management multinational.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Fesco Adecco (外企德科)	Exact match	上海, ChinaHQ recorded Nov 6, 2026	1,001-5,000	1,814 contacts →
	Exact match “FESCO Adecco is a joint-venture human resources services company combining the strengths of FESCO Group (a China 500 Company and the first Chinese company in the human resources…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Securex	Exact match	Brussel - Bruxelles, BelgiumHQ recorded Nov 6, 2026	1,001-5,000	1,784 contacts →
	Exact match “At Securex, we help you catch a breather.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	G-P	Exact match	Remote First Company, JapanHQ recorded Nov 6, 2026	1,001-5,000	1,721 contacts →
	Exact match “G-P is your co-pilot for global employment providing HR, legal and compliance support at your fingertips so you can build teams anywhere.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Nspira Management Services PVT LTD	Exact match	Hyderabad, IndiaHQ recorded Nov 6, 2026	10001+	1,690 contacts →
	Exact match “NSPIRA Management Services Pvt Ltd offers customized services to organizations that aim for professional excellence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Grupo Gestión	Exact match	Buenos Aires, ArgentinaHQ recorded Nov 6, 2026	10001+	1,640 contacts →
	Exact match “Desde su formación en 1997, GRUPO GESTIÓN se afianzó en el país, a través de sus diferentes Unidades de Negocio, como uno de los líderes de Compañías especializadas en la…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Activos Chile	Exact match	Las Condes, ChileHQ recorded Nov 6, 2026	5,001-10,000	1,629 contacts →
	Exact match “Somos una empresa especializada en entregar servicios integrados en el sector de recursos humanos comprometida con los procesos y necesidades de cada uno de nuestros clientes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Acerta	Exact match	BelgiumHQ recorded Nov 6, 2026	1,001-5,000	1,574 contacts →
	Exact match “Acerta specializes in offering advice on all HR-related matters concerning Payroll, Social Security Statute, Legal advice and Talent Management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Chandler Macleod	Exact match	Sydney, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	1,554 contacts →
	Exact match “Established as Australia’s first firm of organisational psychologists, Chandler Macleod has become the market leading provider of fully-integrated human resource services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Xinerlink	Exact match	Santiago, ChileHQ recorded Nov 6, 2026	5,001-10,000	1,549 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Partena Professional	Exact match	Brussels, BelgiumHQ recorded Nov 6, 2026	1,001-5,000	1,459 contacts →
	Exact match “Partena Professional is a service provider with a strong focus on entrepreneurship and personnel management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “human resources support services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 34,851 human resources support services worldwide

See the full list, filter by size, metro and specialty, and access 117,537 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Human resources support services worldwide at a glance

As of Nov 6, 2026

21.2%Verified-email coverage

15.9Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

23,057

11-50

7,224

51-200

2,318

201-500

928

501-1,000

473

1,001-5,000

439

5,001-10,000

120

10001+

112

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for human resources support services are linked below.
What qualifies: Company records worldwide whose business descriptions match “human resources support services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 117,537 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Human resources support services by location

151 lists · largest first

Every Human resources support services 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “human resources support services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many human resources support services are there worldwide?

RevenueBase identified 34,851 company matches for human resources support services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ADP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most human resources support services?

The United States leads with 5,653 companies, followed by India (3,222) and Brazil (2,038). Every human resources support services list by country and city is linked on this page.

Which city has the most human resources support services?

Sao Paulo leads with 445 company records, followed by Bangalore (328) and Mumbai (299).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 117,537 professional contacts with verified work emails tracked across these 34,851 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.