Company lists · Data refreshed September 2026

Top 17 Professional employer organizations based in Atlanta, United States

RevenueBase identified 48 professional employer organizations headquartered in Atlanta, United States as of September 2026 and tracks 734 professional contacts across them, including 321 with verified work emails. New York is the largest hub.

This list covers professional employer organizations headquartered in Atlanta, 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 20, 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 20, 2026 86% judged on-target in blind review
48Companies
734Contacts tracked
321Verified emails
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The 17 largest professional employer organizations based in Atlanta, United States

Ranked by team size
Top 17 of 48 professional employer organizations based in Atlanta, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to professional employer organizations: 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 evidenceAtlanta, GA, United StatesHQ checked Sep 20, 2026201-500320 contacts →

Indirect 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 20, 2026
2Partial evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202611-5054 contacts →

Partial evidence

“APN Group (Accounting Professionals Network, Inc.) is an Atlanta-based consulting firm of finance, accounting and HR professionals on a mission to help small and medium businesses…”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202611-5032 contacts →

Partial evidence

“MY HR is a full-service professional Human Resource consulting firm offering staff augmentation, Recruitment Process Outsourcing (RPO), Payroll Services, and a full range of HR…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202611-5023 contacts →

Indirect evidence

“Same Page HR offers in-the-weeds people operations support for small businesses.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202651-20012 contacts →

Indirect evidence

“OnPay is a fast-growing software company that offers small businesses and accountants the best payroll in the cloud backed up by a team of helpful, friendly experts.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“TreeRing delivers best-in-class technology and support to organizations of all sizes in the public and private sector to meet their complex HR, payroll, talent management…”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20261-108 contacts →

Indirect evidence

“One source for all your HR needs" OneHRSource is a consulting firm specializing in the customization of human resources and benefits management based on each client’s requirements.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 2026201-5007 contacts →

Indirect evidence

“At Metasys Technologies, we help our customers attract, engage and retain top talent.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 202611-507 contacts →

Indirect evidence

“Cannae HR Solutions provides human resource-related operational and consulting services.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20261-104 contacts →

Partial evidence

“At Highmark Benefits Administration, we understand that managing employee benefits can be a daunting task, especially when it comes to compliance with regulatory requirements and…”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20261-103 contacts →

Partial evidence

“An independent PEO advisory firm dedicated to helping small and mid-sized businesses simplify employment and scale with confidence.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20261-103 contacts →

Partial evidence

“Because employees are a company's biggest asset; Because ignorance of the law is not a defense; Because compliance is tricky and can quickly become overwhelming; Because there is…”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20261-102 contacts →

Indirect evidence

“We are a full service HR Consulting Firm, working to provide small business and entrepreneurs with the HR resources they need to maintain compliance while growing their dream.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“Welcome to Action HR Consulting, your trusted partner in navigating the complex world of human resources!”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceAtlanta, United StatesHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“We transform human resource management through innovative, data-driven solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20261-101 contacts →

Partial evidence

“Gurney Benefits, an innovative employee benefits agency, aligns its financial incentives with clients rather than carriers, expertly crafting, deploying, and administering…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 17 of 48 professional employer organizations based in Atlanta, United States

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Professional employer organizations based in Atlanta, United States at a glance

As of Sep 20, 2026
43.7%Verified-email coverage
15.3Average contacts per company
1-10Median size (employees)
127.1%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
14
51-200
5
201-500
2

Email recency for this list is measured across the whole United States list rather than for Atlanta, so it is reported there. Company counts and contact totals on this page are exact for Atlanta, over 48 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 professional employer organizations, 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 Atlanta, United States whose own description of what they do matches “professional employer organizations”. 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 professional employer organizations), 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 professional employer organizations, and records with no verified work email. Companies headquartered outside Atlanta 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, 321 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 20, 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.

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 professional employer organizations, 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 professional employer organizations are there based in Atlanta, United States?

RevenueBase identified 48 professional employer organizations headquartered in Atlanta, 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?

Proliant, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most professional employer organizations?

New York leads with 61 headquartered companies, followed by Houston (59) and Atlanta (48).

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 321 verified decision-maker contacts tracked across these 48 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 20, 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.