Company lists · Data refreshed September 2026

Top 25 HR business process outsourcing companies based in Chicago, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 92 companies tracked

RevenueBase identified 92 company matches for HR business process outsourcing companies associated with Chicago, United States as of September 2026 and tracks 1,638 professional contacts across them, including 460 with verified work emails. Across the United States, New York is the largest hub for this category (220 companies); Chicago has 92.

This list covers company matches for HR business process outsourcing companies 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 28, 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 28, 2026 How this list was built

92Companies

1,638Contacts tracked

460Verified emails

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The 25 largest HR business process outsourcing companies based in Chicago, United States

Ranked by team size

Top 25 of 92 company matches for HR business process outsourcing companies based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 28, 2026	501-1,000	580 contacts →
	Exact match “Atlas HXM understands how people work.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	247digitize	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	217 contacts →
	Exact match “247Digitize is an outsourcing and tech partner that optimizes and manages non-core processes so your key resources can focus on productivity and growth.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Advanced Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	Careerbuilder Sourcing Solutions	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	97 contacts →
	Exact match “CB Sourcing Solutions, a division of CareerBuilder, is the leading business intelligence consulting firm focused on talent.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Assivo	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	51 contacts →
	Exact match “Your Quiet Advantage” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Globalcybers	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7	RJ Reliance, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8	Armada Human Capital	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “Welcome to Armada Human Capital!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Arlington Resources	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
10	Launchways	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
11	Work Friendly	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “Work Friendly is the people infrastructure platform for growing companies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Doerly Works	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1-10	13 contacts →
	Exact match “Welcome to Doerly Works, your trusted partner for comprehensive remote worker solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Sidago Integrated Solutions	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	13 contacts →
	Exact match “Sidago Integrated Solutions is a full service outsourcing consultation business that provides small to large sized business solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Global IQ	Exact match	Chicago, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
15	Crucial Hire	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
16	Vantage Solutions LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
17	Sourceit BPO	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	9 contacts →
	Exact match “Get a high-performing outsourced team for your growing business with the help of our top-notch talents.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Evolvehr	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
19	RTR HR And Staffing Services, LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
20	HR PRO	Exact match	Chicago, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
21	Marketstaff INC	Exact match	Chicago, United StatesHQ recorded Sep 28, 2026	1-10	7 contacts →
	Exact match “Marketstaff, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Triworth IS NOW Advanced RPO	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
23	Northstone INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
24	HRC Advanced	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
25	Olive Park Consulting Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 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 business process outsourcing 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 92 HR business process outsourcing companies based in Chicago, United States

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HR business process outsourcing companies based in Chicago, United States at a glance

As of Sep 28, 2026

28.1%Verified-email coverage

17.8Average contacts per company

1-10Median size (employees)

Sep 28, 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 92 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 business process outsourcing 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 460 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 28, 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 business process outsourcing companies 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 business process outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many HR business process outsourcing companies are there based in Chicago, United States?

RevenueBase identified 92 company matches for HR business process outsourcing companies 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 business process outsourcing companies?

New York leads the United States with 220 company records, followed by Atlanta (126) and Houston (110). Chicago has 92.

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 460 professional contacts with verified work emails tracked across these 92 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 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 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.