Company lists · Data refreshed September 2026

Top 25 HR information systems integrators worldwide

RevenueBase identified 15,338 HR information systems integrators worldwide as of September 2026 and tracks 446,385 professional contacts across them, including 136,211 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers HR information systems integrators 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 information systems integrators 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
15,338Companies
446,385Contacts tracked
136,211Verified emails
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The 25 largest HR information systems integrators worldwide

Ranked by team size
Top 25 of 15,338 HR information systems integrators worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to HR information systems integrators: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceRoseland, NJ, United StatesHQ checked Sep 28, 202610001+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 28, 2026
2Partial evidencePleasanton, CA, United StatesHQ checked Sep 28, 202610001+20,846 contacts →

Partial evidence

“By unifying HR and Finance on an open, trusted platform powered by AI, Workday delivers high-impact outcomes our customers can count on.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceRochester, NY, United StatesHQ checked Sep 28, 202610001+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 28, 2026
4Partial evidenceOklahoma City, OK, United StatesHQ checked Sep 28, 20265,001-10,0007,002 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 28, 2026
5Indirect evidenceMinneapolis, MN, United StatesHQ checked Sep 28, 20265,001-10,0005,902 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 28, 2026
6Indirect evidenceKingwood, TX, United StatesHQ checked Sep 28, 20261,001-5,0004,761 contacts →

Indirect evidence

“Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0002,734 contacts →

Partial evidence

“At Alight | NGA Human Resources our mission is to make HR work better.”

Source: RevenueBase Database · checked Sep 28, 2026
8Strong evidenceNoida, IndiaHQ checked Sep 28, 20261,001-5,0002,637 contacts →

Strong evidence

“As one of India’s leading system integrators, Velocis partners with organizations to turn technology into a catalyst for measurable business value.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceCincinnati, OH, United StatesHQ checked Sep 28, 20261,001-5,0002,615 contacts →

Partial evidence

“Paycor’s HR, payroll, and talent platform connects leaders to people, data, and expertise.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceAntwerp, BelgiumHQ checked Sep 28, 20265,001-10,0002,561 contacts →

Partial evidence

“SD Worx is your HR, Pay and Time partner in Europe.”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceMumbai, IndiaHQ checked Sep 28, 20261,001-5,0002,475 contacts →

Strong evidence

“Allied Digital Services is a globally recognized leader in Digital Transformation and a Master Systems Integrator, with over four decades of proven experience.”

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidenceWiesbaden, GermanyHQ checked Sep 28, 20261,001-5,0002,452 contacts →

Strong evidence

“Imprint: SVA is one of the leading system integrators in Germany.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceParis La Défense, GermanyHQ checked Sep 28, 20261,001-5,0002,324 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 28, 2026
14Indirect evidenceMiguel Hidalgo, MexicoHQ checked Sep 28, 20261,001-5,0002,057 contacts →

Indirect evidence

“Un software de recursos humanos para atender todas las necesidades de tus colaboradores.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceCairo, EgyptHQ checked Sep 28, 20261,001-5,0001,975 contacts →

Partial evidence

“pulse by solutions (formerly known as Giza Systems Group) is the trusted global force behind critical industries, deploying the Intelligence That Transforms to accelerate digital…”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLowell, MA, United StatesHQ checked Sep 28, 20265,001-10,0001,889 contacts →

Indirect evidence

“Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceCourbevoie, FranceHQ checked Sep 28, 20261,001-5,0001,855 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 28, 2026
18Partial evidenceBengaluru, IndiaHQ checked Sep 28, 2026501-1,0001,809 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 28, 2026
19Partial evidenceMunich, GermanyHQ checked Sep 28, 20261,001-5,0001,786 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 28, 2026
20Partial evidenceParis, FranceHQ checked Sep 28, 20261,001-5,0001,704 contacts →

Partial evidence

“Acteur de référence des systèmes d’information augmentés par l’intégration stratégique de la data, Consort Group accompagne les entreprises pour leur permettre de valoriser ce…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceGurgaon, IndiaHQ checked Sep 28, 20261,001-5,0001,702 contacts →

Indirect evidence

“PeopleStrong is Asia’s leading, and the most comprehensive Human Capital Management SaaS platform.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceCharlotte, NC, United StatesHQ checked Sep 28, 20261,001-5,0001,657 contacts →

Partial evidence

“isolved® isolved is a Workforce Capital Management company, the next evolution of HCM, where human workers and AI agents are governed together on a single system of record, with…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceLas Condes, ChileHQ checked Sep 28, 20265,001-10,0001,504 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceBristol, United KingdomHQ checked Sep 28, 20261,001-5,0001,465 contacts →

Indirect evidence

“Zellis helps organisations unlock better outcomes by creating exceptional experiences for their people.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceSao Paulo, BrazilHQ checked Sep 28, 2026501-1,0001,423 contacts →

Indirect evidence

“VR, soluções para gestão de pessoas em um só lugar!”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 15,338 HR information systems integrators worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 136,211 reachable decision-makers.

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HR information systems integrators worldwide at a glance

As of Sep 28, 2026
30.5%Verified-email coverage
29.1Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
7,429
11-50
5,072
51-200
1,854
201-500
537
501-1,000
182
1,001-5,000
167
5,001-10,000
45
10001+
33

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 information systems integrators, 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 information systems integrators are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “HR information systems integrators”. 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 information systems integrators), 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 information systems integrators, 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, 136,211 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 information systems integrators by location

94 lists · largest first

Every HR information systems integrators 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 information systems integrators, 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 information systems integrators are there worldwide?

RevenueBase identified 15,338 HR information systems integrators 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 information systems integrators?

The United States leads with 2,301 companies, followed by India (1,989) and Brazil (831). Every HR information systems integrators list by country and city is linked on this page.

Which city has the most HR information systems integrators?

Sao Paulo leads with 239 headquartered companies, followed by Mumbai (186) and London (160).

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 136,211 verified decision-maker contacts tracked across these 15,338 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.