Company lists · Data refreshed October 2026

Top 25 HR service delivery software companies based in the United States

Name: HR service delivery software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 4,065 companies tracked

RevenueBase identified 4,065 company matches for HR service delivery software companies associated with the United States as of October 2026 and tracks 258,484 professional contacts across them, including 93,937 with verified work emails. New York is the largest hub.

This list covers company matches for HR service delivery software companies associated with the United States, 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 October 1, 2026.

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 Oct 1, 2026 How this list was built

4,065Companies

258,484Contacts tracked

93,937Verified emails

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The 25 largest HR service delivery software companies based in the United States

Ranked by team size

Top 25 of 4,065 company matches for HR service delivery software companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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, NJ, United StatesHQ recorded Oct 1, 2026	10001+	84,166 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 · Oct 1, 2026 · View company records in RevenueBase
2	Workday	Exact match	Pleasanton, CA, United StatesHQ recorded Oct 1, 2026	10001+	20,846 contacts →
	Exact match “By unifying HR and Finance on an open, trusted platform powered by AI, Workday delivers high-impact outcomes our customers can count on.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Paychex	Exact match	Rochester, NY, United StatesHQ recorded Oct 1, 2026	10001+	17,911 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 · Oct 1, 2026 · View company records in RevenueBase
4	Randstad USA	Exact match	Atlanta, GA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	8,522 contacts →
	Exact match “Randstad North America, Inc.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Paycom	Exact match	Oklahoma City, OK, United StatesHQ recorded Oct 1, 2026	5,001-10,000	7,002 contacts →
	Exact match “Paycom (NYSE:PAYC) automates the entire employee life cycle in a truly single HR and payroll software.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	DEEL	Exact match	San Francisco, CA, United StatesHQ recorded Oct 1, 2026	5,001-10,000	6,510 contacts →
	Exact match “Deel is one platform for payroll, HR, benefits, mobility, performance, and device management across 150+ countries.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Paylocity	Exact match	Schaumburg, IL, United StatesHQ recorded Oct 1, 2026	5,001-10,000	6,153 contacts →
	Exact match “Paylocity (NASDAQ: PCTY) is an award-winning provider of cloud-based HR, payroll and spend management software solutions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Dayforce	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 1, 2026	5,001-10,000	5,902 contacts →
	Exact match “Dayforce is as a global leader in HCM technology focused on improving work for thousands of customers and millions of employees around the world.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Lancesoft, INC	Exact match	Herndon, VA, United StatesHQ recorded Oct 1, 2026	5,001-10,000	4,877 contacts →
	Exact match “Established in LanceSoft is a pioneer in delivering top-notch Global Workforce Solutions and IT Services to a diverse clientele.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Insperity	Exact match	Kingwood, TX, United StatesHQ recorded Oct 1, 2026	1,001-5,000	4,761 contacts →
	Exact match “Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Trinet	Exact match	Dublin, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	4,056 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 · Oct 1, 2026 · View company records in RevenueBase
12	Allegis Global Solutions	Exact match	Hanover, MD, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,866 contacts →
	Exact match “At Allegis Global Solutions (AGS), we’re in the human enterprise business.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Paycor	Exact match	Cincinnati, OH, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,615 contacts →
	Exact match “Paycor’s HR, payroll, and talent platform connects leaders to people, data, and expertise.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Mindlance	Exact match	Union, NJ, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,096 contacts →
	Exact match “Mindlance is a global Talent, Teams, Projects, and Workforce Solutions partner, serving leading enterprises across industries since With a strong footprint across multiple…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	SAP Successfactors	Exact match	South San Francisco, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,948 contacts →
	Exact match “SAP SuccessFactors is SAP’s cloud human capital management (HCM) suite built for Autonomous HCM-powered by AI and guided by people.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Kronos Incorporated	Exact match	Lowell, MA, United StatesHQ recorded Oct 1, 2026	5,001-10,000	1,889 contacts →
	Exact match “Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Bamboohr	Exact match	Draper, UT, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,812 contacts →
	Exact match “For 16 years, BambooHR has embarked on a mission to help organizations and their employees build better workplaces and achieve their unique missions.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	HIBOB	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,669 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Isolved	Exact match	Charlotte, NC, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,657 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Avature	Exact match	New York, NY, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,535 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Darwinbox	Exact match	San Mateo, CA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	1,504 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Bcforward	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 1, 2026	5,001-10,000	1,448 contacts →
	Exact match “BCforward is a global talent and technology solutions partner helping organizations accelerate outcomes through people, platforms, and expertise.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	SSS	Exact match	Littleton, CO, United StatesHQ recorded Oct 1, 2026	n/a	1,376 contacts →
	Exact match “Employee Based Systems (EBS) is a innovative HRMS software development, implementation training, support, and services company specializing in helping companies improve…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Keka HR	Exact match	Seattle, WA, United StatesHQ recorded Oct 1, 2026	501-1,000	1,182 contacts →
	Exact match “Keka is a leading unified HR and payroll platform that helps organizations run people operations with consistency, compliance, and operational clarity.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Ultimate Software	Exact match	Weston, FL, United StatesHQ recorded Oct 1, 2026	5,001-10,000	1,084 contacts →
	Exact match “Built from the merger of Ultimate Software & Kronos Inc, we are now UKG.” Recorded in the RevenueBase company graph · Oct 1, 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 “HR service delivery software companies”. 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 4,065 HR service delivery software companies based in the United States

See the full list, filter by size, metro and specialty, and access 93,937 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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HR service delivery software companies based in the United States at a glance

As of Oct 1, 2026

36.3%Verified-email coverage

63.6Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · New York

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

2,384

11-50

1,026

51-200

426

201-500

115

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 4,065 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “HR service delivery software companies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 93,937 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 October 1, 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.

HR service delivery software companies by metro

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 “HR service delivery software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many HR service delivery software companies are there based in the United States?

RevenueBase identified 4,065 company matches for HR service delivery software companies associated with the United States as of October 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 city has the most HR service delivery software companies?

New York leads with 149 company records, followed by Atlanta (81) and Houston (70).

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 93,937 professional contacts with verified work emails tracked across these 4,065 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 October 1, 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.