Company lists · Data refreshed September 2026

Top 25 HR systems worldwide

Name: HR systems worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 43,631 companies tracked

RevenueBase identified 43,631 HR systems worldwide as of September 2026 and tracks 654,286 professional contacts across them, including 139,671 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers HR systems 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 21, 2026. Country and city lists for HR systems 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 21, 2026 86% judged on-target in blind review

43,631Companies

654,286Contacts tracked

139,671Verified emails

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The 25 largest HR systems worldwide

Ranked by team size

Top 25 of 43,631 HR systems worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to HR systems: 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	ADP	Indirect evidence	Roseland, NJ, United StatesHQ checked Sep 21, 2026	10001+	84,166 contacts →
	Indirect evidence “Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.” Source: RevenueBase Database · checked Sep 21, 2026
2	Paychex	Partial evidence	Rochester, NY, United StatesHQ checked Sep 21, 2026	10001+	17,911 contacts →
	Partial evidence “As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Source: RevenueBase Database · checked Sep 21, 2026
3	LHH	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 21, 2026	10001+	12,889 contacts →
	Indirect evidence “At LHH, we believe work should be meaningful, fulfilling, and connected.” Source: RevenueBase Database · checked Sep 21, 2026
4	City Of Chicago	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	10001+	7,413 contacts →
	Indirect evidence “The City of Chicago is the third largest city in the United States, with a population of nearly three million people.” Source: RevenueBase Database · checked Sep 21, 2026
5	Paycom	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 21, 2026	5,001-10,000	7,002 contacts →
	Partial evidence “Paycom (NYSE:PAYC) automates the entire employee life cycle in a truly single HR and payroll software.” Source: RevenueBase Database · checked Sep 21, 2026
6	Dayforce	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 21, 2026	5,001-10,000	5,902 contacts →
	Indirect evidence “Dayforce is as a global leader in HCM technology focused on improving work for thousands of customers and millions of employees around the world.” Source: RevenueBase Database · checked Sep 21, 2026
7	Insperity	Indirect evidence	Kingwood, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,761 contacts →
	Indirect evidence “Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Source: RevenueBase Database · checked Sep 21, 2026
8	Trinet	Partial evidence	Dublin, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,056 contacts →
	Partial evidence “TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.” Source: RevenueBase Database · checked Sep 21, 2026
9	Randstad India	Indirect evidence	Chennai, IndiaHQ checked Sep 21, 2026	1,001-5,000	3,145 contacts →
	Indirect evidence “Randstad is the world’s largest talent company and a partner of choice to clients.” Source: RevenueBase Database · checked Sep 21, 2026
10	Randstad España	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	1,001-5,000	3,083 contacts →
	Indirect evidence “Randstad es la empresa líder en España en soluciones de Recursos Humanos, haciendo posible que cada día personas en nuestro país tengan un empleo.” Source: RevenueBase Database · checked Sep 21, 2026
11	Allegis Global Solutions	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,866 contacts →
	Indirect evidence “At Allegis Global Solutions (AGS), we’re in the human enterprise business.” Source: RevenueBase Database · checked Sep 21, 2026
12	NGA Human Resources, An Alight Company	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	1,001-5,000	2,734 contacts →
	Partial evidence “At Alight \| NGA Human Resources our mission is to make HR work better.” Source: RevenueBase Database · checked Sep 21, 2026
13	Paycor	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,615 contacts →
	Partial evidence “Paycor’s HR, payroll, and talent platform connects leaders to people, data, and expertise.” Source: RevenueBase Database · checked Sep 21, 2026
14	SD Worx	Partial evidence	Antwerp, BelgiumHQ checked Sep 21, 2026	5,001-10,000	2,561 contacts →
	Partial evidence “SD Worx is your HR, Pay and Time partner in Europe.” Source: RevenueBase Database · checked Sep 21, 2026
15	HR Path	Partial evidence	Paris La Défense, GermanyHQ checked Sep 21, 2026	1,001-5,000	2,324 contacts →
	Partial evidence “HR Path, an expert, and a major player in Human Resources, helps companies for who the human experience is essential to their digital transformation.” Source: RevenueBase Database · checked Sep 21, 2026
16	Vejle Kommune	Indirect evidence	Vejle, DenmarkHQ checked Sep 21, 2026	5,001-10,000	2,172 contacts →
	Indirect evidence “Vejle Kommune er landets femtestørste kommune.” Source: RevenueBase Database · checked Sep 21, 2026
17	BUK	Indirect evidence	Miguel Hidalgo, MexicoHQ checked Sep 21, 2026	1,001-5,000	2,057 contacts →
	Indirect evidence “Un software de recursos humanos para atender todas las necesidades de tus colaboradores.” Source: RevenueBase Database · checked Sep 21, 2026
18	SAP Successfactors	Indirect evidence	South San Francisco, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,948 contacts →
	Indirect evidence “SAP SuccessFactors is SAP’s cloud human capital management (HCM) suite built for Autonomous HCM-powered by AI and guided by people.” Source: RevenueBase Database · checked Sep 21, 2026
19	Kronos Incorporated	Indirect evidence	Lowell, MA, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,889 contacts →
	Indirect evidence “Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Source: RevenueBase Database · checked Sep 21, 2026
20	Sopra HR Software	Partial evidence	Courbevoie, FranceHQ checked Sep 21, 2026	1,001-5,000	1,855 contacts →
	Partial evidence “Sopra HR Software, leader en solutions et services pour la paie et les RH, répond aux enjeux des Directions des Ressources Humaines des organisations de moyennes et grandes…” Source: RevenueBase Database · checked Sep 21, 2026
21	Bamboohr	Indirect evidence	Draper, UT, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,812 contacts →
	Indirect evidence “For 16 years, BambooHR has embarked on a mission to help organizations and their employees build better workplaces and achieve their unique missions.” Source: RevenueBase Database · checked Sep 21, 2026
22	Ciel HR	Partial evidence	Bengaluru, IndiaHQ checked Sep 21, 2026	501-1,000	1,809 contacts →
	Partial evidence “CIEL HR is the only company in India which provides a comprehensive suite of technology-driven human resources solutions across the entire human resource chain and impacts every…” Source: RevenueBase Database · checked Sep 21, 2026
23	Personio	Partial evidence	Munich, GermanyHQ checked Sep 21, 2026	1,001-5,000	1,786 contacts →
	Partial evidence “Founded in 2015 and built in Europe, Personio is the Intelligent HR Platform championing every side of HR's evolution.” Source: RevenueBase Database · checked Sep 21, 2026
24	Synergie Italia	Indirect evidence	Torino, ItalyHQ checked Sep 21, 2026	501-1,000	1,748 contacts →
	Indirect evidence “L’Italia è piena di talenti: il nostro lavoro è riconoscerli!” Synergie Italia S.p.A.” Source: RevenueBase Database · checked Sep 21, 2026
25	51job	Indirect evidence	Pudong District, ChinaHQ checked Sep 21, 2026	5,001-10,000	1,675 contacts →
	Indirect evidence “51job (Nasdaq:JOBS) is a leading human resource solutions provider in China, offering a broad array of services in the areas of recruitment solutions, training and assessment, and…” 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: HR systems. 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 systems.
Partial evidence: Its own public description names part of HR systems, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name HR systems. 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 43,631 HR systems worldwide

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HR systems worldwide at a glance

As of Sep 21, 2026

21.3%Verified-email coverage

15.0Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

28,980

11-50

9,690

51-200

2,823

201-500

982

501-1,000

430

1,001-5,000

446

5,001-10,000

114

10001+

113

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 systems, 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 systems are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “HR systems”. 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 systems), 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 systems, 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, 139,671 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.

HR systems by location

161 lists · largest first

Every HR systems 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 systems, 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 systems are there worldwide?

RevenueBase identified 43,631 HR systems 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?

ADP, headquartered in Roseland, tops this list with the largest team on record.

Which country has the most HR systems?

The United States leads with 5,180 companies, followed by India (5,083) and Brazil (3,031). Every HR systems list by country and city is linked on this page.

Which city has the most HR systems?

Sao Paulo leads with 712 headquartered companies, followed by Mumbai (491) and London (468).

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 139,671 verified decision-maker contacts tracked across these 43,631 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.