Company lists · Data refreshed September 2026

Top 25 Human resources SaaS marketing agencies based in the United States

Name: Human resources SaaS marketing agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 3,862 companies tracked

RevenueBase identified 3,862 human resources SaaS marketing agencies headquartered in the United States as of September 2026 and tracks 175,168 professional contacts across them, including 61,259 with verified work emails. New York is the largest hub.

This list covers human resources SaaS marketing agencies headquartered in the United States, 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.

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

3,862Companies

175,168Contacts tracked

61,259Verified emails

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The 25 largest human resources SaaS marketing agencies based in the United States

Ranked by team size

Top 25 of 3,862 human resources SaaS marketing agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to human resources SaaS marketing agencies: 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	Paychex	Indirect evidence	Rochester, NY, United StatesHQ checked Sep 28, 2026	10001+	17,911 contacts →
	Indirect 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
3	LHH	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 28, 2026	10001+	12,889 contacts →
	Indirect evidence “At LHH, we believe work should be meaningful, fulfilling, and connected.” Source: RevenueBase Database · checked Sep 28, 2026
4	Paylocity	Indirect evidence	Schaumburg, IL, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,153 contacts →
	Indirect 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
5	Insperity	Indirect evidence	Kingwood, TX, United StatesHQ checked Sep 28, 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 28, 2026
6	Trinet	Indirect evidence	Dublin, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,056 contacts →
	Indirect evidence “TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.” Source: RevenueBase Database · checked Sep 28, 2026
7	Allegis Global Solutions	Partial evidence	Hanover, MD, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,866 contacts →
	Partial evidence “At Allegis Global Solutions (AGS), we’re in the human enterprise business.” Source: RevenueBase Database · checked Sep 28, 2026
8	SAP Successfactors	Partial evidence	South San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,948 contacts →
	Partial 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
9	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
10	HIBOB	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,669 contacts →
	Indirect 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
11	Avature	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,535 contacts →
	Partial 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
12	Darwinbox	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,504 contacts →
	Indirect 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
13	CMI Career Management INC	Partial evidence	Vienna, VA, United StatesHQ checked Sep 28, 2026	n/a	818 contacts →
	Partial evidence “CMI (Career Management Inc.) is the premier provider of Sales & Marketing search / recruiting for small to mid sized software & technology companies.” Source: RevenueBase Database · checked Sep 28, 2026
14	Abstrakt Marketing Group	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 28, 2026	501-1,000	724 contacts →
	Indirect evidence “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Source: RevenueBase Database · checked Sep 28, 2026
15	Asure Software	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	501-1,000	665 contacts →
	Partial evidence “Asure (NASDAQ: ASUR) sees Human Capital Management (HCM) through the lens of entrepreneurs and executives with an owner’s mentality.” Source: RevenueBase Database · checked Sep 28, 2026
16	Randall Reilly	Indirect evidence	Tuscaloosa, AL, United StatesHQ checked Sep 28, 2026	51-200	389 contacts →
	Indirect evidence “Randall Reilly delivers full scale talent acquisition, turning talent challenges into growth opportunities.” Source: RevenueBase Database · checked Sep 28, 2026
17	Puzzlehr	Strong evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	201-500	321 contacts →
	Strong evidence “At PuzzleHR, we help companies solve the Human Resource puzzle by providing "HR as a Service".” Source: RevenueBase Database · checked Sep 28, 2026
18	Proliant	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	201-500	320 contacts →
	Partial evidence “ProLiant provides a fully integrated, cloud-based human capital management solution that simplifies payroll and HR processes, improves accuracy, and ensures industry compliance.” Source: RevenueBase Database · checked Sep 28, 2026
19	Repstack	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 28, 2026	201-500	306 contacts →
	Partial evidence “At RepStack, we’re redefining how digital agencies, SaaS companies, and business coaches build remote teams.” Source: RevenueBase Database · checked Sep 28, 2026
20	Viventium	Partial evidence	Berkeley Heights, NJ, United StatesHQ checked Sep 28, 2026	201-500	285 contacts →
	Partial evidence “Viventium provides a SaaS-based payroll and HR solution that is focused on the post-acute care industry, paying over health services employees and supporting clients in all 50…” Source: RevenueBase Database · checked Sep 28, 2026
21	Shaker Recruitment Marketing	Partial evidence	Oak Park, IL, United StatesHQ checked Sep 28, 2026	51-200	279 contacts →
	Partial evidence “Shaker Recruitment Marketing is a full-service recruitment marketing agency specializing in Branding, Talent Attraction, Martech, and Analytics to help you attract, hire, and…” Source: RevenueBase Database · checked Sep 28, 2026
22	The Sage Group	Partial evidence	Melville, NY, United StatesHQ checked Sep 28, 2026	51-200	274 contacts →
	Partial evidence “The Sage Group, a 24 Seven company, is a leading talent solutions firm with a fine-tuned approach in the marketing, technology, and business operations space.” Source: RevenueBase Database · checked Sep 28, 2026
23	INOVA	Partial evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	201-500	271 contacts →
	Partial evidence “Inova Payroll is a leading employer services company, integrating payroll and human capital management (HCM) technology with personalized support and full-service HR outsourcing.” Source: RevenueBase Database · checked Sep 28, 2026
24	Simplicity Consulting	Partial evidence	Kirkland, WA, United StatesHQ checked Sep 28, 2026	201-500	254 contacts →
	Partial evidence “From strategy to execution, Simplicity Consulting, a 24 Seven company, connects clients with highly skilled consultants specializing in enterprise-level marketing, communications…” Source: RevenueBase Database · checked Sep 28, 2026
25	Synectics INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	248 contacts →
	Indirect evidence 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: human resources SaaS marketing agencies. 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 human resources SaaS marketing agencies.
Partial evidence: Its own public description names part of human resources SaaS marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name human resources SaaS marketing agencies. 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 3,862 human resources SaaS marketing agencies based in the United States

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Human resources SaaS marketing agencies based in the United States at a glance

As of Sep 28, 2026

35.0%Verified-email coverage

45.4Average contacts per company

1-10Median size (employees)

4.5%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,803

11-50

730

51-200

223

201-500

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 3,862 companies.

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 human resources SaaS marketing agencies, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “human resources SaaS marketing agencies”. 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 human resources SaaS marketing agencies), 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 human resources SaaS marketing agencies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 61,259 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.

Human resources SaaS marketing agencies by metro

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 human resources SaaS marketing agencies, 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 human resources SaaS marketing agencies are there based in the United States?

RevenueBase identified 3,862 human resources SaaS marketing agencies headquartered in the United States 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 city has the most human resources SaaS marketing agencies?

New York leads with 175 headquartered companies, followed by Atlanta (106) and Austin (73).

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 61,259 verified decision-maker contacts tracked across these 3,862 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.