Company lists · Data refreshed September 2026

Top 25 HR outsourcing services based in Chicago, United States

Name: HR outsourcing services based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 94 companies tracked

RevenueBase identified 94 company matches for HR outsourcing services associated with Chicago, United States as of September 2026 and tracks 1,478 professional contacts across them, including 427 with verified work emails. Across the United States, New York is the largest hub for this category (201 companies); Chicago has 94.

This list covers company matches for HR outsourcing services associated with Chicago, 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 September 26, 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 Sep 26, 2026 How this list was built

94Companies

1,478Contacts tracked

427Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest HR outsourcing services based in Chicago, United States

Ranked by team size

Top 25 of 94 company matches for HR outsourcing services based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 26, 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	Atlas HXM	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	501-1,000	580 contacts →
	Exact match “Atlas HXM understands how people work.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
2	Synectics INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	201-500	248 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
3	Advanced Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	501-1,000	125 contacts →
	Exact match “Advanced Group provides expertise in talent acquisition and management, outsourcing, and professional services.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
4	Globalcybers	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	47 contacts →
	Exact match “From Talent to Automation, We Power Business Growth & Global Team Expansion We are a non-IT staffing partner helping companies hire and scale their teams efficiently, with…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
5	Scouts	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	n/a	40 contacts →
	Exact match “Scouts offers a sourcing-as-a-service model created to serve selective recruiting processes.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
6	RJ Reliance, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	34 contacts →
	Exact match “RJ Reliance is the leading client-focused Human Capital Management solution and service partner.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
7	Armada Human Capital	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	28 contacts →
	Exact match “Welcome to Armada Human Capital!” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
8	Arlington Resources	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	24 contacts →
	Exact match “Arlington Resources specializes in the placement of Human Resources Professionals for direct hire, contract and temporary services.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
9	Launchways	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	21 contacts →
	Exact match “Simple, strategic solutions for Human Resources, Payroll, Employee Benefits, and Business Insurance.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
10	Work Friendly	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	20 contacts →
	Exact match “Work Friendly is the people infrastructure platform for growing companies.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
11	Global IQ	Exact match	Chicago, United StatesHQ recorded Sep 26, 2026	11-50	10 contacts →
	Exact match “Global Data \| Global Insights Global IQ is a full suite data-as-a-service provider to meet your HR needs as well as analytics to help you plan for the future and consulting to…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
12	Crucial Hire	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	10 contacts →
	Exact match “We are experts in the placement of Human Resources professionals, providing contract, contingency and retained services to start-ups, growth companies, and the Fortune We have a…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
13	Vantage Solutions LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	1-10	9 contacts →
	Exact match “At Vantage Solutions, we believe that business success is driven by people.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
14	Evolvehr	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	8 contacts →
	Exact match “Founded in 2006, EvolveHR partners with US companies to support their HR needs and drive their people growth.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
15	RTR HR And Staffing Services, LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	1-10	8 contacts →
	Exact match “RTR HR and Staffing Services, LLC connects clients to a strong HR and Staffing team.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
16	HR PRO	Exact match	Chicago, United StatesHQ recorded Sep 26, 2026	1-10	8 contacts →
	Exact match “Implementing the highest caliber integrity based human resources solutions and support, to drive top tier business outcomes, by a network of best in class hr pro’s, without the…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
17	Marketstaff INC	Exact match	Chicago, United StatesHQ recorded Sep 26, 2026	1-10	7 contacts →
	Exact match “Marketstaff, Inc.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
18	Triworth IS NOW Advanced RPO	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	6 contacts →
	Exact match “Triworth is now Advanced RPO With over 20 years of success in recruitment process outsourcing and talent acquisition, Advanced RPO is comprised of the industry’s most experienced…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
19	Northstone INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	1-10	6 contacts →
	Exact match “Northstone is premier relationship centered human capital consulting firm headquartered in Chicago with offices in Chicago & Milwaukee.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
20	JMS HR Group	Exact match	Chicago, United StatesHQ recorded Sep 26, 2026	1-10	6 contacts →
	Exact match “Pragmatic HR Advisory Services for Immediate Results.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
21	HRC Advanced	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	1-10	5 contacts →
	Exact match “We offer a full range of customized HR services designed to alleviate the burden of HR on business resources while partnering with clients to drive business performance through…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
22	Sirius Human Capital Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	5 contacts →
	Exact match “We provide our clients with direct hire recruitment, HR consulting, and strategic talent acquisition HR services to help you navigate through a turbulent candidate driven market.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
23	Olive Park Consulting Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	1-10	4 contacts →
	Exact match “Olive Park Consulting Group provides specialized Accounting, Finance and Human Resources support services for small-to medium-sized businesses.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
24	Canary HR Consulting	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	1-10	4 contacts →
	Exact match “We are a boutique HR Consulting firm that is committed to providing professional and creative HR support.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
25	Cognos HR	Exact match	Chicago, IL, United StatesHQ recorded Sep 26, 2026	11-50	4 contacts →
	Exact match “We're a Human Resources services and consulting firm that specializes in serving startups, SMBs and non-profit organizations; whether it's payroll, employee benefits, HR software…” Recorded in the RevenueBase company graph · Sep 26, 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 outsourcing services”. 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 94 HR outsourcing services based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 427 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

HR outsourcing services based in Chicago, United States at a glance

As of Sep 26, 2026

28.9%Verified-email coverage

15.7Average contacts per company

1-10Median size (employees)

Sep 26, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 94 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 Chicago, United States whose business descriptions match “HR outsourcing services” 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 427 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 September 26, 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 outsourcing services by metro in the United States

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 outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many HR outsourcing services are there based in Chicago, United States?

RevenueBase identified 94 company matches for HR outsourcing services associated with Chicago, United States as of September 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?

Atlas HXM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most HR outsourcing services?

New York leads the United States with 201 company records, followed by Atlanta (135) and Houston (113). Chicago has 94.

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 427 professional contacts with verified work emails tracked across these 94 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 September 26, 2026.

Ready to reach these companies? Verified emails and direct dials for all 94 HR outsourcing services based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

HR outsourcing services by geography

Browse the directory

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.