Company lists · Data refreshed September 2026

Top 25 Custom HR software developers worldwide

Name: Custom HR software developers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 7,342 companies tracked

RevenueBase identified 7,342 custom HR software developers worldwide as of September 2026 and tracks 358,806 professional contacts across them, including 126,149 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers custom HR software developers 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 custom HR software developers 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

7,342Companies

358,806Contacts tracked

126,149Verified emails

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The 25 largest custom HR software developers worldwide

Ranked by team size

Top 25 of 7,342 custom HR software developers worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to custom HR software developers: 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 28, 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 28, 2026
2	Workday	Strong evidence	Pleasanton, CA, United StatesHQ checked Sep 28, 2026	10001+	20,846 contacts →
	Strong 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
3	Paychex	Partial evidence	Rochester, NY, United StatesHQ checked Sep 28, 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 28, 2026
4	SAGE	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026	10001+	13,063 contacts →
	Indirect evidence “At Sage, we knock down barriers with information, insights, and tools to help your business flow.” Source: RevenueBase Database · checked Sep 28, 2026
5	Paycom	Strong evidence	Oklahoma City, OK, United StatesHQ checked Sep 28, 2026	5,001-10,000	7,002 contacts →
	Strong 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
6	DEEL	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,510 contacts →
	Partial evidence “Deel is one platform for payroll, HR, benefits, mobility, performance, and device management across 150+ countries.” Source: RevenueBase Database · checked Sep 28, 2026
7	Rippling	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	6,303 contacts →
	Indirect evidence “Rippling is a workforce management system that eliminates the friction from running a business.” Source: RevenueBase Database · checked Sep 28, 2026
8	Paylocity	Strong evidence	Schaumburg, IL, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,153 contacts →
	Strong evidence “Paylocity (NASDAQ: PCTY) is an award-winning provider of cloud-based HR, payroll and spend management software solutions.” Source: RevenueBase Database · checked Sep 28, 2026
9	Dayforce	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 28, 2026	5,001-10,000	5,902 contacts →
	Partial 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
10	Strada	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 28, 2026	5,001-10,000	5,585 contacts →
	Indirect evidence “With over 30 years as a global people, payroll, and technology leader, Strada specializes in removing complexity to simplify workforce management.” Source: RevenueBase Database · checked Sep 28, 2026
11	NGA Human Resources, An Alight Company	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
12	Paycor	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 28, 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 28, 2026
13	SD Worx	Partial evidence	Antwerp, BelgiumHQ checked Sep 28, 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 28, 2026
14	BUK	Partial evidence	Miguel Hidalgo, MexicoHQ checked Sep 28, 2026	1,001-5,000	2,057 contacts →
	Partial evidence “Un software de recursos humanos para atender todas las necesidades de tus colaboradores.” Source: RevenueBase Database · checked Sep 28, 2026
15	Factorial	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	501-1,000	2,043 contacts →
	Indirect evidence “The AI platform for managing teams where people and agents work as one.” Source: RevenueBase Database · checked Sep 28, 2026
16	SAP Successfactors	Indirect evidence	South San Francisco, CA, United StatesHQ checked Sep 28, 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 28, 2026
17	Kronos Incorporated	Partial evidence	Lowell, MA, United StatesHQ checked Sep 28, 2026	5,001-10,000	1,889 contacts →
	Partial evidence “Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Source: RevenueBase Database · checked Sep 28, 2026
18	Sopra HR Software	Strong evidence	Courbevoie, FranceHQ checked Sep 28, 2026	1,001-5,000	1,855 contacts →
	Strong 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
19	Bamboohr	Indirect evidence	Draper, UT, United StatesHQ checked Sep 28, 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 28, 2026
20	Personio	Partial evidence	Munich, GermanyHQ checked Sep 28, 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 28, 2026
21	Peoplestrong	Indirect evidence	Gurgaon, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,702 contacts →
	Indirect evidence “PeopleStrong is Asia’s leading, and the most comprehensive Human Capital Management SaaS platform.” Source: RevenueBase Database · checked Sep 28, 2026
22	HIBOB	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,669 contacts →
	Partial evidence “HiBob is on a mission to transform how organizations operate in the modern world of work with its HR platform,"Bob." Leading the way for the future workplace, Bob offers…” Source: RevenueBase Database · checked Sep 28, 2026
23	Isolved	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,657 contacts →
	Indirect 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
24	Avature	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,535 contacts →
	Indirect evidence “Pioneer of CRM technology for recruiting, Avature is a highly configurable enterprise SaaS platform for talent acquisition and talent management that drives innovation in the HCM…” Source: RevenueBase Database · checked Sep 28, 2026
25	Darwinbox	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,504 contacts →
	Partial evidence “Darwinbox is a new-age, agile HCM Suite that enables enterprises and growing businesses to automate their day-to-day HR processes, deliver actionable insights and build better…” 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: custom HR software developers. 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 custom HR software developers.
Partial evidence: Its own public description names part of custom HR software developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom HR software developers. 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 7,342 custom HR software developers worldwide

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Custom HR software developers worldwide at a glance

As of Sep 28, 2026

35.2%Verified-email coverage

48.9Average 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

3,215

11-50

2,572

51-200

993

201-500

296

501-1,000

111

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 custom HR software developers, 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 custom HR software developers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “custom HR software developers”. 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 custom HR software developers), 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 custom HR software developers, 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, 126,149 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.

Custom HR software developers by location

55 lists · largest first

Every Custom HR software developers 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 custom HR software developers, 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 custom HR software developers are there worldwide?

RevenueBase identified 7,342 custom HR software developers 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 custom HR software developers?

The United States leads with 1,144 companies, followed by India (930) and Brazil (348). Every custom HR software developers list by country and city is linked on this page.

Which city has the most custom HR software developers?

Sao Paulo leads with 114 headquartered companies, followed by London (95) and Dubai (82).

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 126,149 verified decision-maker contacts tracked across these 7,342 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.