Company lists · Data refreshed September 2026

Top 25 Recruitment process outsourcing technology companies based in the United States

RevenueBase identified 8,536 recruitment process outsourcing technology companies headquartered in the United States as of September 2026 and tracks 256,983 professional contacts across them, including 44,427 with verified work emails. New York is the largest hub.

This list covers recruitment process outsourcing technology companies 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 29, 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 29, 2026 86% judged on-target in blind review
8,536Companies
256,983Contacts tracked
44,427Verified emails
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The 25 largest recruitment process outsourcing technology companies based in the United States

Ranked by team size
Top 25 of 8,536 recruitment process outsourcing technology companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to recruitment process outsourcing technology companies: 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 evidenceMenlo Park, CA, United StatesHQ checked Sep 29, 202610001+25,574 contacts →

Indirect evidence

“At Robert Half, we prioritize your security-if you believe you've encountered a scam or fraudulent recruiter, please report it immediately to All Robert Half recruiters…”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceMilwaukee, WI, United StatesHQ checked Sep 29, 202610001+22,508 contacts →

Partial evidence

“Manpower is the global leader in contingent and permanent recruitment workforce solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 29, 2026n/a15,553 contacts →

Indirect evidence

“Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 29, 20261,001-5,0008,522 contacts →

Indirect evidence

“Randstad North America, Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceHerndon, VA, United StatesHQ checked Sep 29, 20265,001-10,0004,877 contacts →

Indirect evidence

“Established in LanceSoft is a pioneer in delivering top-notch Global Workforce Solutions and IT Services to a diverse clientele.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 29, 20261,001-5,0004,831 contacts →

Indirect evidence

“Volt (an Innova Solutions affiliate) is a multi-award winning global workforce solutions provider that propels businesses and careers forward with expert momentum.”

Source: RevenueBase Database · checked Sep 29, 2026
7Strong evidenceMarina Del Rey, CA, United StatesHQ checked Sep 29, 20261,001-5,0004,000 contacts →

Strong evidence

“PSG is a global leader in recruitment process optimization, delivering high-performance outsourced recruiting solutions that drive real business results.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceHanover, MD, United StatesHQ checked Sep 29, 202610001+3,103 contacts →

Indirect evidence

“As the global leader in talent solutions, we take pride in what we do, connecting great people to great opportunities, helping businesses win and careers soar.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceHanover, MD, United StatesHQ checked Sep 29, 20261,001-5,0002,437 contacts →

Indirect evidence

“Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceAustin, TX, United StatesHQ checked Sep 29, 20265,001-10,0002,293 contacts →

Indirect evidence

“Crossover is a global recruiting platform for a private group of US tech and education companies that only hire the top 1% of tech talent.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceChesterfield, MO, United StatesHQ checked Sep 29, 20265,001-10,0002,061 contacts →

Indirect evidence

“Rose International is a leading provider of Staffing and Total Talent Solutions to corporations and government agencies, employing thousands of people across the U.S, Canada and…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 29, 202610001+1,948 contacts →

Indirect evidence

“Remedy Intelligent Staffing is a nationwide professional staffing organization with more than 50 years of recruiting and selection expertise to match job candidates with positions…”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceWauwatosa, WI, United StatesHQ checked Sep 29, 20261,001-5,0001,910 contacts →

Indirect evidence

“Talent is the currency of now.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceSan Jose, CA, United StatesHQ checked Sep 29, 20261,001-5,0001,669 contacts →

Partial evidence

“Empowering Technology Services” Founded in 2003, we are in our 22th year of structured growth.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0001,535 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 29, 2026
16Partial evidencePittsburgh, PA, United StatesHQ checked Sep 29, 20265,001-10,0001,386 contacts →

Partial evidence

“System One is a leading provider of specialized, highly technical outsourced services, workforce solutions, staffing, and recruiting to critical infrastructure, technology, life…”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceAlpharetta, GA, United StatesHQ checked Sep 29, 2026501-1,0001,296 contacts →

Partial evidence

“ASK Consulting is an award-winning technology and professional services recruiting firm servicing Fortune 500 organizations nationally.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceChicago, IL, United StatesHQ checked Sep 29, 20261,001-5,0001,173 contacts →

Indirect evidence

“PeopleScout, a TrueBlue company, is a global talent solutions leader.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceBoston, MA, United StatesHQ checked Sep 29, 2026501-1,0001,150 contacts →

Partial evidence

“Motion Recruitment, a Kelly® Company, delivers IT Talent Solutions for Contract, Direct Hire, Managed Solutions and Statement of Work to all of North America from our 21 delivery…”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceOak Brook, IL, United StatesHQ checked Sep 29, 2026201-5001,059 contacts →

Indirect evidence

“At 247Hire, our mission is simple: to empower yours.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,0001,024 contacts →

Indirect evidence

“ECLARO is an award-winning Talent Solutions firm headquartered in New York City and operating in the U.S, Canada and the Philippines.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceDuluth, GA, United StatesHQ checked Sep 29, 2026201-5001,002 contacts →

Indirect evidence

“Opportunities.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 29, 2026501-1,000990 contacts →

Indirect evidence

“IntelliPro Group Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceLewisville, TX, United StatesHQ checked Sep 29, 2026n/a969 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceSanta Barbara, CA, United StatesHQ checked Sep 29, 20261,001-5,000928 contacts →

Indirect evidence

“Partners Personnel is a full-service staffing company with offices nationwide, dedicated to finding the best talent for our clients and building great careers for our associates.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 8,536 recruitment process outsourcing technology companies based in the United States

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Recruitment process outsourcing technology companies based in the United States at a glance

As of Sep 29, 2026
17.3%Verified-email coverage
30.1Average contacts per company
1-10Median size (employees)
5.3%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
4,343
11-50
2,507
51-200
1,154
201-500
305
501-1,000
93
1,001-5,000
90
5,001-10,000
19
10001+
18

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 8,536 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 recruitment process outsourcing technology companies, 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 “recruitment process outsourcing technology companies”. 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 recruitment process outsourcing technology companies), 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 recruitment process outsourcing technology companies, 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, 44,427 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 29, 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.

Recruitment process outsourcing technology companies 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 recruitment process outsourcing technology companies, 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 recruitment process outsourcing technology companies are there based in the United States?

RevenueBase identified 8,536 recruitment process outsourcing technology companies 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?

Robert Half, headquartered in Menlo Park, tops this list with the largest team on record.

Which city has the most recruitment process outsourcing technology companies?

New York leads with 453 headquartered companies, followed by Austin (242) and San Francisco (212).

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 44,427 verified decision-maker contacts tracked across these 8,536 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 29, 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.